Exhibit 10.2

AVALYN PHARMA INC

AMENDMENT TO

2022 EQUITY INCENTIVE PLAN

WHEREAS, the Board of Directors of Avalyn Pharma Inc. (the “Company”) approved and adopted the 2022 Equity Incentive Plan (the “Plan”) of the Company on February 10, 2022. The Plan was first amended by the Company on November 18, 2022 and amended again on September 22, 2023 and on April 25, 2025; and

WHEREAS, the Board of Directors and the stockholders of the Company have determined that it is in the best interest of the Company to further amend the Plan as set forth in this Amendment (this “Amendment”).

NOW, THEREFORE, the Plan is amended as follows:

1. Amendment of the Plan

1.01. Section 2.1 of the Plan is hereby amended and restated in its entirety to read as follows:

“2.1. Number of Shares Available. Subject to Sections 2.2 and 11 hereof, the total number of Shares reserved and available for grant and issuance pursuant to this Plan will be 74,840,074 Shares, plus (a) shares that are subject to issuance under the Company’s 2012 Equity Incentive Plan (the “Prior Plan”) but cease to be subject to an award for any reason other than exercise of an option or settlement of such award after the Effective Date (as defined in Section 13.1 hereof); and (b) shares that were issued under the Prior Plan which are repurchased by the Company or which are forfeited, used to pay withholding obligations with respect to any award granted under the Prior Plan or pay the exercise price of an option granted under the Prior Plan after the Effective Date. Subject to Sections 2.2 and 11 hereof, (A) in the event that Shares previously issued under the Plan are reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company, such Shares shall be added to the number of Shares then available for issuance under the Plan; (B) in the event that Shares that otherwise would have been issuable under the Plan are withheld by the Company in payment of the Purchase Price, Exercise Price or withholding obligations, such Shares shall remain available for issuance under the Plan; and (C) in the event that an outstanding Option, Restricted Stock Unit or SAR for any reason expires or is cancelled, forfeited or terminated, the Shares allocable to the unexercised or unsettled portion of such Option, Restricted Stock Unit or SAR, as applicable, shall remain available for issuance under the Plan. To the extent an Award is settled in cash, the cash settlement shall not reduce the number of Shares remaining available for issuance under the Plan. At all times the Company will reserve and keep available a sufficient number of Shares as will be required to satisfy the requirements of all Awards granted and outstanding under this Plan. In no event shall the total number of Shares issued (counting each reissuance of a Share that was previously issued and then reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company as a separate issuance) under the Plan upon exercise of ISOs (as defined in Section 4 hereof) exceed 748,400,740 Shares (adjusted in proportion to any adjustments under Section 2.2 hereof) over the term of the Plan.”

2. Miscellaneous.

2.01. Effect. Except as amended hereby, the Plan shall remain in full force and effect.

2.02. Defined Terms. All capitalized terms used but not specifically defined herein shall have the same meanings given such terms in the Plan unless the context clearly indicates or dictates a contrary meaning.

2.03. Governing Law. This Amendment shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to that body of laws pertaining to conflict of laws.

AVALYN PHARMA INC

AMENDMENT TO

2022 EQUITY INCENTIVE PLAN

WHEREAS, the Board of Directors of Avalyn Pharma Inc. (the “Company”) approved and adopted the 2022 Equity Incentive Plan (the “Plan”) of the Company on February 10, 2022. The Plan was first amended by the Company on November 18, 2022 and amended again on September 22, 2023; and WHEREAS, the Board of Directors and the stockholders of the Company have determined that it is in the best interest of the Company to further amend the Plan as set forth in this Amendment (this “Amendment”).

NOW, THEREFORE, the Plan is amended as follows:

1. Amendment of the Plan

1.01. Section 2.1 of the Plan is hereby amended and restated in its entirety to read as follows:

“2.1 Number of Shares Available. Subject to Sections 2.2 and 11 hereof, the total number of Shares reserved and available for grant and issuance pursuant to this Plan will be 65,771,251 Shares, plus (a) shares that are subject to issuance under the Company’s 2012 Equity Incentive Plan (the “Prior Plan”) but cease to be subject to an award for any reason other than exercise of an option or settlement of such award after the Effective Date (as defined in Section 13.1 hereof); and (b) shares that were issued under the Prior Plan which are repurchased by the Company or which are forfeited, used to pay withholding obligations with respect to any award granted under the Prior Plan or pay the exercise price of an option granted under the Prior Plan after the Effective Date. Subject to Sections 2.2 and 11 hereof, (A) in the event that Shares previously issued under the Plan are reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company, such Shares shall be added to the number of Shares then available for issuance under the Plan; (B) in the event that Shares that otherwise would have been issuable under the Plan are withheld by the Company in payment of the Purchase Price, Exercise Price or withholding obligations, such Shares shall remain available for issuance under the Plan; and (C) in the event that an outstanding Option, Restricted Stock Unit or SAR for any reason expires or is cancelled, forfeited or terminated, the Shares allocable to the unexercised or unsettled portion of such Option, Restricted Stock Unit or SAR, as applicable, shall remain available for issuance under the Plan. To the extent an Award is settled in cash, the cash settlement shall not reduce the number of Shares remaining available for issuance under the Plan. At all times the Company will reserve and keep available a sufficient number of Shares as will be required to satisfy the requirements of all Awards granted and outstanding under this Plan. In no event shall the total number of Shares issued (counting each reissuance of a Share that was previously issued and then reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company as a separate issuance) under the Plan upon exercise of ISOs (as defined in Section 4 hereof) exceed 657,712,510 Shares (adjusted in proportion to any adjustments under Section 2.2 hereof) over the term of the Plan.”

2. Miscellaneous.

2.01. Effect. Except as amended hereby, the Plan shall remain in full force and effect.

2.02. Defined Terms. All capitalized terms used but not specifically defined herein shall have the same meanings given such terms in the Plan unless the context clearly indicates or dictates a contrary meaning.

2.03. Governing Law. This Amendment shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to that body of laws pertaining to conflict of laws.

AVALYN PHARMA INC

AMENDMENT TO

2022 EQUITY INCENTIVE PLAN

WHEREAS, the Board of Directors of Avalyn Pharma Inc. (the “Company”) approved and adopted the 2022 Equity Incentive Plan (the “Plan”) of the Company on February 10, 2022. The Plan was amended by the Company on November 18, 2022; and WHEREAS, the Board of Directors and the stockholders of the Company have determined that it is in the best interest of the Company to further amend the Plan as set forth in this Amendment (this “Amendment”).

NOW, THEREFORE, the Plan is amended as follows:

1. Amendment of the Plan

1.01. Section 2.1 of the Plan is hereby amended and restated in its entirety to read as follows:

“2.1. Number of Shares Available. Subject to Sections 2.2 and 11 hereof, the total number of Shares reserved and available for grant and issuance pursuant to this Plan will be 43,481,297 Shares, plus (a) shares that are subject to issuance under the Company’s 2012 Equity Incentive Plan (the “Prior Plan”) but cease to be subject to an award for any reason other than exercise of an option or settlement of such award after the Effective Date (as defined in Section 13.1 hereof); and (b) shares that were issued under the Prior Plan which are repurchased by the Company or which are forfeited, used to pay withholding obligations with respect to any award granted under the Prior Plan or pay the exercise price of an option granted under the Prior Plan after the Effective Date. Subject to Sections 2.2 and 11 hereof, (A) in the event that Shares previously issued under the Plan are reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company, such Shares shall be added to the number of Shares then available for issuance under the Plan; (B) in the event that Shares that otherwise would have been issuable under the Plan are withheld by the Company in payment of the Purchase Price, Exercise Price or withholding obligations, such Shares shall remain available for issuance under the Plan; and (C) in the event that an outstanding Option, Restricted Stock Unit or SAR for any reason expires or is cancelled, forfeited or terminated, the Shares allocable to the unexercised or unsettled portion of such Option, Restricted Stock Unit or SAR, as applicable, shall remain available for issuance under the Plan. To the extent an Award is settled in cash, the cash settlement shall not reduce the number of Shares remaining available for issuance under the Plan. At all times the Company will reserve and keep available a sufficient number of Shares as will be required to satisfy the requirements of all Awards granted and outstanding under this Plan. In no event shall the total number of Shares issued (counting each reissuance of a Share that was previously issued and then reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company as a separate issuance) under the Plan upon exercise of ISOs (as defined in Section 4 hereof) exceed 434,812,970 Shares (adjusted in proportion to any adjustments under Section 2.2 hereof) over the term of the Plan.”

2. Miscellaneous.

2.01 Effect. Except as amended hereby, the Plan shall remain in full force and effect.

2.02. Defined Terms. All capitalized terms used but not specifically defined herein shall have the same meanings given such terms in the Plan unless the context clearly indicates or dictates a contrary meaning.

2.03. Governing Law. This Amendment shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to that body of laws pertaining to conflict of laws.

AVALYN PHARMA INC.

2022 EQUITY INCENTIVE PLAN

As Adopted on February 10, 2022
As Amended on November 18, 2022

1. PURPOSE. The purpose of this Plan is to provide incentives to attract, retain and motivate eligible persons whose present and potential contributions are important to the success of the Company, its Parent and Subsidiaries by offering eligible persons an opportunity to participate in the Company’s future performance through the grant of Awards covering Shares. Capitalized terms not defined in the text are defined in Section 14 hereof. Although this Plan is intended to be a written compensatory benefit plan within the meaning of Rule 701, grants may be made pursuant to this Plan that do not qualify for exemption under Rule 701 or Section 25102(o). Any requirement of this Plan that is required in law only because of Section 25102(o) need not apply if the Committee so provides.

2. SHARES SUBJECT TO THE PLAN.

2.1 Number of Shares Available. Subject to Sections 2.2 and 11 hereof, the total number of Shares reserved and available for grant and issuance pursuant to this Plan will be 7,299,426 Shares, plus (a) shares that are subject to issuance under the Company’s 2012 Equity Incentive Plan (the “Prior Plan”) but cease to be subject to an award for any reason other than exercise of an option or settlement of such award after the Effective Date (as defined in Section 13.1 hereof); and (b) shares that were issued under the Prior Plan which are repurchased by the Company or which are forfeited, used to pay withholding obligations with respect to any award granted under the Prior Plan or pay the exercise price of an option granted under the Prior Plan after the Effective Date. Subject to Sections 2.2 and 11 hereof, (A) in the event that Shares previously issued under the Plan are reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company, such Shares shall be added to the number of Shares then available for issuance under the Plan; (B) in the event that Shares that otherwise would have been issuable under the Plan are withheld by the Company in payment of the Purchase Price, Exercise Price or withholding obligations, such Shares shall remain available for issuance under the Plan; and (C) in the event that an outstanding Option, Restricted Stock Unit or SAR for any reason expires or is cancelled, forfeited or terminated, the Shares allocable to the unexercised or unsettled portion of such Option, Restricted Stock Unit or SAR, as applicable, shall remain available for issuance under the Plan. To the extent an Award is settled in cash, the cash settlement shall not reduce the number of Shares remaining available for issuance under the Plan. At all times the Company will reserve and keep available a sufficient number of Shares as will be required to satisfy the requirements of all Awards granted and outstanding under this Plan. In no event shall the total number of Shares issued (counting each reissuance of a Share that was previously issued and then reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or repurchase by the Company as a separate issuance) under the Plan upon exercise of ISOs (as defined in Section 4 hereof) exceed 72,994,260 Shares (adjusted in proportion to any adjustments under Section 2.2 hereof) over the term of the Plan.

2.2 Adjustment of Shares. In the event that the Company’s Common Stock is changed by a stock dividend, recapitalization, stock split, reverse stock split, subdivision, combination, reclassification or other change in the capital structure of the Company affecting Shares without consideration, then in order to prevent diminution or enlargement of the benefits or potential benefits intended to be made available under the Plan (a) the number and class of Shares reserved for issuance under this Plan, (b) the Exercise Prices of and number and class of Shares subject to outstanding Options and SARs, and (c) the Purchase Prices of and/or number and class of Shares subject to other outstanding Awards will (to the extent appropriate) be proportionately adjusted, subject to any required action by the Board or the stockholders of the Company and compliance with applicable securities or other laws; provided, however, that fractions of a Share will not be issued but will either be paid in cash at the Fair Market Value of such fraction of a Share or will be rounded down to the nearest whole Share, as determined by the Committee.

3. PLAN FOR BENEFIT OF SERVICE PROVIDERS.

3.1 Eligibility. The Committee will have the authority to select persons to receive Awards. ISOs may be granted only to employees (including officers and directors who are also employees) of the Company or of a Parent or Subsidiary of the Company. NQSOs (as defined in Section 4 hereof) and all other types of Awards may be granted to employees, officers, directors and consultants of the Company or any Parent or Subsidiary of the Company; provided such consultants render bona fide services not in connection with the offer and sale of securities in a capital-raising transaction when Rule 701 is to apply to the Award granted for such services. A person may be granted more than one Award under this Plan.

3.2 No Obligation to Employ. Nothing in this Plan or any Award granted under this Plan will confer or be deemed to confer on any Participant any right to continue in the employ of, or to continue any other relationship with, the Company or any Subsidiary or Parent of the Company or limit in any way the right of the Company or any Subsidiary or Parent of the Company to terminate Participant’s employment or other relationship at any time, with or without Cause.

4. OPTIONS. The Committee may grant Options to eligible persons described in Section 3 hereof and will determine whether such Options will be Incentive Stock Options within the meaning of the Code (“ISOs”) or Nonqualified Stock Options (“NQSOs”), the number of Shares subject to the Option, the Exercise Price of the Option, the period during which the Option may be exercised, and all other terms and conditions of the Option, subject to the following.

4.1 Form of Option Grant. Each Option granted under this Plan will be evidenced by an Award Agreement which will expressly identify the Option as an ISO or an NQSO (“Stock Option Agreement”), and will be in such form and contain such provisions (which need not be the same for each Participant) as the Committee may from time to time approve, and which will comply with and be subject to the terms and conditions of this Plan.

4.2 Date of Grant. The date of grant of an Option will be the date on which the Committee makes the determination to grant such Option, unless a later date is otherwise specified by the Committee. The Stock Option Agreement and a copy of this Plan will be delivered to the Participant within a reasonable time after the granting of the Option.

4.3 Exercise Period. Options may be exercisable within the time or upon the events determined by the Committee in the Award Agreement and may be awarded as immediately exercisable but subject to repurchase pursuant to Section 10 hereof or may be exercisable within the times or upon the events determined by the Committee as set forth in the Stock Option Agreement governing such Option; provided, however, that (a) no Option will be exercisable after the expiration of ten (10) years from the date

the Option is granted; and (b) no ISO granted to a person who directly or by attribution owns more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or of any Subsidiary or Parent of the Company (“Ten Percent Stockholder”) will be exercisable after the expiration of five (5) years from the date the ISO is granted; but in no event shall an Option granted to an employee who is a non-exempt employee for purposes of overtime pay under the U.S. Fair Labor Standards Act of 1938 be exercisable earlier than six (6) months after its date of grant. The Committee also may provide for Options to become exercisable at one time or from time to time, periodically or otherwise, in such number of Shares or percentage of Shares as the Committee determines.

4.4 Exercise Price. The Exercise Price of an Option will be determined by the Committee when the Option is granted and shall not be less than the Fair Market Value per Share on the date of grant unless expressly determined in writing by the Committee; provided that the Exercise Price of an ISO granted to a Ten Percent Stockholder will not be less than one hundred ten percent (110%) of the Fair Market Value of the Shares on the date of grant. Payment for the Shares purchased must be made in accordance with Section 8 hereof.

4.5 Method of Exercise. Options may be exercised only by delivery to the Company of a stock option exercise agreement (accepted via written, electronic or other means) (the “Exercise Agreement”) in a form approved by the Committee (which need not be the same for each Participant). The Exercise Agreement will state (a) the number of Shares being purchased, (b) the restrictions imposed on the Shares purchased under such Exercise Agreement, if any, and (c) such representations and agreements regarding Participant’s investment intent and access to information and other matters, if any, as may be required or desirable by the Company to comply with applicable securities or other laws. Each Participant’s Exercise Agreement may be modified by (i) agreement of Participant and the Company or (ii) substitution by the Company, upon becoming a public company, in order to add the payment terms set forth in Section 8.1 that apply to a public company and such other terms as shall be necessary or advisable in order to exercise a public company option. Upon exercise of an Option, Participant shall execute and deliver to the Company the Exercise Agreement then in effect, together with payment in full of the Exercise Price for the number of Shares being purchased and satisfaction of any applicable Tax-Related Obligations (as defined in Section 8.2 hereof). No adjustment will be made for a dividend or other right for which the record date is prior to the date the Shares are issued, except as provided in Section 2.2 of the Plan. Exercising an Option in any manner will decrease the number of Shares thereafter available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to which the Option is exercised.

4.6 Termination. Subject to earlier termination pursuant to Sections 11 and 13 hereof and subject to any longer exercise periods set forth in the Stock Option Agreement, exercise of an Option will always be subject to the following terms and conditions.

4.6.1 Other than Death or Disability or for Cause. If the Participant is Terminated for any reason other than death, Disability or for Cause, then the Participant may exercise such Participant’s Options only to the extent that such Options are exercisable as to Vested Shares upon the Termination Date, except as otherwise determined by the Committee or required by applicable law. Such Options must be exercised by the Participant, if at all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within three (3) months after the Termination Date (or within such shorter time period, not less than thirty (30) days, or within such longer time period after the Termination Date as may be determined by the Committee or required by applicable law, with any exercise beyond three (3) months after the date Participant ceases to be an employee deemed to be an NQSO) but, in any event, no later than the expiration date of the Options.

4.6.2 Death or Disability. If the Participant is Terminated because of Participant’s death or Disability (or the Participant dies within three (3) months after a Termination other than for Cause), then Participant’s Options may be exercised only to the extent that such Options are exercisable as to Vested Shares on the Termination Date, except as otherwise determined by the Committee or required by applicable law. Such Options must be exercised by Participant (or Participant’s legal representative or authorized assignee), if at all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within twelve (12) months after the Termination Date (or within such shorter time period, not less than six (6) months, or within such longer time period, after the Termination Date as may be determined by the Committee or required by applicable law, with any exercise beyond (a) three (3) months after the date Participant ceases to be an employee when the Termination is for any reason other than the Participant’s death or disability, within the meaning of Section 22(e)(3) of the Code, or (b) twelve (12) months after the date Participant ceases to be an employee when the Termination is for Participant’s disability, within the meaning of Section 22(e)(3) of the Code, deemed to be an NQSO) but in any event no later than the expiration date of the Options.

4.6.3 For Cause. If the Participant is Terminated for Cause, the Participant may exercise such Participant’s Options, but not to an extent greater than such Options are exercisable as to Vested Shares upon the Termination Date and Participant’s Options shall expire on such Participant’s Termination Date, or at such later time and on such conditions as are determined by the Committee.

4.7 Limitations on Exercise. The Committee may specify a reasonable minimum number of Shares that may be purchased on any exercise of an Option, provided that such minimum number will not prevent Participant from exercising the Option for the full number of Shares for which it is then exercisable.

4.8 Limitations on ISOs. The aggregate Fair Market Value (determined as of the date of grant) of Shares with respect to which ISOs are exercisable for the first time by a Participant during any calendar year (under this Plan or under any other incentive stock option plan of the Company or any Parent or Subsidiary of the Company) will not exceed One Hundred Thousand Dollars ($100,000). If the Fair Market Value of Shares on the date of grant with respect to which ISOs are exercisable for the first time by a Participant during any calendar year exceeds One Hundred Thousand Dollars ($100,000), then the Options for the first One Hundred Thousand Dollars ($100,000) worth of Shares to become exercisable in such calendar year will be ISOs and the Options for the amount in excess of One Hundred Thousand Dollars ($100,000) that become exercisable in that calendar year will be NQSOs. In the event that the Code or the regulations promulgated thereunder are amended after the Effective Date (as defined in Section 13.1 hereof) to provide for a different limit on the Fair Market Value of Shares permitted to be subject to ISOs, then such different limit will be automatically incorporated herein and will apply to any Options granted after the effective date of such amendment.

4.9 Modification, Extension or Renewal. The Committee may modify, extend or renew outstanding Options and authorize the grant of new Options in substitution therefor, provided that any such action may not, without the written consent of a Participant, impair any of such Participant’s rights under any Option previously granted, unless for the purpose of complying with applicable laws and regulations. Any outstanding ISO that is modified, extended, renewed or otherwise altered will be treated in accordance with Section 424(h) of the Code. Subject to Section 4.10 hereof, the Committee may reduce the Exercise Price of outstanding Options without the consent of Participants by a written notice to them; provided, however, that the Exercise Price may not be reduced below the minimum Exercise Price that would be permitted under Section 4.4 hereof for Options granted on the date the action is taken to reduce the Exercise Price.

4.10 No Disqualification. Notwithstanding any other provision in this Plan, no term of this Plan relating to ISOs will be interpreted, amended or altered, nor will any discretion or authority granted under this Plan be exercised, so as to disqualify this Plan under Section 422 of the Code or, without the consent of the Participant, to disqualify any Participant’s ISO under Section 422 of the Code.

5. RESTRICTED STOCK. A Restricted Stock Award is an offer by the Company to sell to an eligible person Shares that are subject to certain specified restrictions. The Committee will determine to whom an offer will be made, the number of Shares the person may purchase, the Purchase Price, the restrictions to which the Shares will be subject, and all other terms and conditions of the Restricted Stock Award, subject to the following terms and conditions.

5.1 Form of Restricted Stock Award. All purchases under a Restricted Stock Award made pursuant to this Plan will be evidenced by an Award Agreement (“Restricted Stock Purchase Agreement”) that will be in such form (which need not be the same for each Participant) as the Committee will from time to time approve, and will comply with and be subject to the terms and conditions of this Plan. The Restricted Stock Award will be accepted by the Participant’s execution and delivery of the Restricted Stock Purchase Agreement (accepted via written, electronic or other means) and full payment for the Shares to the Company within thirty (30) days from the date the Restricted Stock Purchase Agreement is delivered to the person. If such person does not execute and deliver the Restricted Stock Purchase Agreement along with full payment for the Shares to the Company within such thirty (30) days, then the offer will terminate, unless otherwise determined by the Committee.

5.2 Purchase Price. The Purchase Price of Shares sold pursuant to a Restricted Stock Award will be determined by the Committee on the date the Restricted Stock Award is granted. Payment of the Purchase Price must be made in accordance with Section 8 hereof.

5.3 Dividends and Other Distributions. Participants holding Restricted Stock Awards will be entitled to receive all dividends and other distributions paid with respect to such Shares, unless the Committee provides otherwise at the time the Award is granted. If any such dividends or distributions are paid in Shares, the Shares will be subject to the same restrictions on transferability and forfeitability as the Restricted Stock Awards with respect to which they were paid.

5.4 Restrictions. Restricted Stock Awards may be subject to the restrictions set forth in Sections 9 and 10 hereof or, with respect to a Restricted Stock Award to which Section 25102(o) is to apply, such other restrictions not inconsistent with Section 25102(o).

6. RESTRICTED STOCK UNITS.

6.1 Awards of Restricted Stock Units. A Restricted Stock Unit (“RSU”) is an Award covering a number of Shares that may be settled in cash, by issuance of those Shares at a date in the future, or by a combination of cash and Shares. No Purchase Price shall apply to an RSU settled in Shares. The Committee will determine the terms of an RSU including, without limitation: (a) the number of Shares subject to the RSU, (b) the time or times during which the RSU may be settled, (c) the consideration to be distributed on settlement, and (d) the effect of the Participant’s Termination on each RSU. All grants of RSUs will be evidenced by an Award Agreement (the “RSU Agreement”) that will be in such form (which need not be the same for each Participant) as the Committee will from time to time approve, and will comply with and be subject to the terms and conditions of this Plan. No RSU will have a term longer than ten (10) years from the date the RSU is granted.

6.2 Form and Timing of Settlement. Payment of earned RSUs will be made as soon as practicable after the date(s) determined by the Committee and set forth in the RSU Agreement. To the extent permissible under applicable law, the Committee may permit a Participant to defer payment (including settlement) under an RSU to a date or dates after the RSU has vested, provided that the terms of the RSU and any deferral satisfy the requirements of Section 409A of the Code (or any successor) and any regulations or rulings promulgated thereunder, to the extent the Participant is subject to Section 409A of the Code.

6.3 Dividend Equivalent Payments. The Board may permit Participants holding RSUs to receive dividend equivalent payments on outstanding RSUs if and when dividends are paid to stockholders on Shares. In the discretion of the Board, such dividend equivalent payments may be paid in cash or Shares and they may either be paid at the same time as dividend payments are made to stockholders or delayed until Shares are issued pursuant to the RSU grants and may be subject to the same vesting or performance requirements as the RSUs. If the Board permits dividend equivalent payments to be made on RSUs, the terms and conditions for such dividend equivalent payments will be set forth in the RSU Agreement.

7. STOCK APPRECIATION RIGHTS.

7.1 Awards of SARs. Stock Appreciation Rights (“SARs”) may be settled in cash or Shares (which may consist of Restricted Stock or RSUs) or a combination thereof, having a value equal to the value determined by multiplying the difference between the Fair Market Value on the date of exercise over the Exercise Price and the number of Shares with respect to which the SAR is being exercised. All grants of SARs made pursuant to this Plan will be evidenced by an Award Agreement (the “SAR Agreement”) that will be in such form (which need not be the same for each Participant) as the Committee will from time to time approve, and will comply with and be subject to the terms and conditions of this Plan.

7.2 Exercise Period and Expiration Date. A SAR will be exercisable within the times or upon the occurrence of events determined by the Committee and set forth in the SAR Agreement. The SAR Agreement shall set forth the expiration date; provided that no SAR will be exercisable after the expiration of ten (10) years from the date the SAR is granted.

7.3 Exercise Price. The Committee will determine the Exercise Price of the SAR when the SAR is granted, which may not be less than the Fair Market Value on the date of grant.

7.4 Termination. Subject to earlier termination pursuant to Sections 11 and 13 hereof and subject to any longer exercise periods set forth in the SAR Agreement, exercise of SARs will always be subject to the following terms and conditions.

7.4.1 Other than Death or Disability or for Cause. If the Participant is Terminated for any reason other than death, Disability or for Cause, then the Participant may exercise such Participant’s SARs only to the extent that such SARs are exercisable as to Vested Shares upon the Termination Date or as otherwise determined by the Committee or as required by applicable law. SARs must be exercised by the Participant, if at all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within three (3) months after the Termination Date (or within such shorter time period, not less than thirty (30) days, or within such longer time period after the Termination Date as may be determined by the Committee or as required by applicable law), but in any event no later than the expiration date of the SARs.

7.4.2 Death or Disability. If the Participant is Terminated because of Participant’s death or Disability (or the Participant dies within three (3) months after a Termination other than for Cause), then Participant’s SARs may be exercised only to the extent that such SARs are exercisable as to Vested Shares on the Termination Date or as otherwise determined by the Committee or as required by applicable law. Such SARs must be exercised by Participant (or Participant’s legal representative or authorized assignee), if at all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within twelve (12) months after the Termination Date (or within such shorter time period, not less than six (6) months, or within such longer time period after the Termination Date as may be determined by the Committee or as required by applicable law), but in any event no later than the expiration date of the SARs.

7.4.3 For Cause. If the Participant is Terminated for Cause, the Participant may exercise such Participant’s SARs, but not to an extent greater than such SARs are exercisable as to Vested Shares upon the Termination Date and Participant’s SARs shall expire on such Participant’s Termination Date, or at such later time and on such conditions as are determined by the Committee.

8. PAYMENT FOR PURCHASES AND EXERCISES.

8.1 Payment in General. Payment for Shares acquired pursuant to this Plan may be made in cash equivalents (including by check or Automated Clearing House (“ACH”) transfer) or, where expressly approved for the Participant by the Committee and subject to compliance with applicable law:

(a) by cancellation of indebtedness of the Company owed to the Participant;

(b) by surrender of shares of the Company that are clear of all liens, claims, encumbrances or security interests and: (i) for which the Company has received “full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been fully paid with respect to such shares) or (ii) that were obtained by Participant in the public market;

(c) by tender of a full recourse promissory note having such terms as may be approved by the Committee and bearing interest at a rate sufficient to avoid (i) imputation of income under Sections 483 and 1274 of the Code and (ii) unfavorable accounting treatment as determined by the Committee; provided, however, that Participants who are not employees or directors of the Company will not be entitled to purchase Shares with a promissory note unless the note is adequately secured by collateral other than the Shares; provided, further, that the portion of the Exercise Price or Purchase Price, as the case may be, equal to the par value (if any) of the Shares must be paid in cash or other legal consideration permitted by the laws under which the Company is then incorporated or organized;

(d) by waiver of compensation due or accrued to the Participant from the Company for services rendered;

(e) by participating in a formal cashless exercise program implemented by the Committee in connection with the Plan;

(f) provided that a public market for the Company’s common stock exists, by exercising through a “same day sale” commitment from the Participant and a broker-dealer whereby the Participant irrevocably elects to exercise the Award and to sell a portion of the Shares so purchased sufficient to pay the total Exercise Price or Purchase Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price or Purchase Price directly to the Company; or

(g) by any combination of the foregoing or any other method of payment approved by the Committee.

For avoidance of uncertainty: ACH transfers that have been received by the Company into its bank account designated for receipt of such transfers under this Section 8.1 shall be deemed to have been received for all purposes under this Plan as of the date on which such transfers were initiated from the transferor’s account and made irrevocable by the transferor.

8.2 Withholding Taxes.

8.2.1 Withholding Generally. Whenever Shares are to be issued in satisfaction of Awards granted under this Plan, the Company may require the Participant to remit to the Company an amount sufficient to satisfy the maximum tax withholding requirements as to income tax, social insurance, payroll tax, fringe benefits tax, payment on account and other tax-related obligations (collectively, “Tax- Related Obligations”) prior to the delivery of any written or electronic certificate or certificates for such Shares. Whenever, under this Plan, payments in satisfaction of Awards are to be made in cash by the Company, such payment will be net of an amount sufficient to satisfy applicable tax withholding requirements.

8.2.2 Stock Withholding. When, under applicable tax laws, a Participant incurs tax liability in connection with the exercise or vesting of any Award that is subject to tax withholding and the Participant is obligated to pay the Company the amount required to be withheld, the Committee may in its sole discretion allow the Participant to satisfy up to the maximum Tax-Related Obligations in the employee’s applicable jurisdictions by electing to have the Company withhold from the Shares to be issued up to the number of Shares having a Fair Market Value on the date that the amount of tax to be withheld is to be determined that is not more than the maximum Tax-Related Obligations in the employee’s applicable jurisdictions; or to arrange a mandatory “sell to cover” on Participant’s behalf (without further authorization) but in no event will the Company withhold Shares or “sell to cover” if such withholding would result in adverse accounting or compliance consequences to the Company. The maximum Tax- Related Obligations are based on the applicable rates of the relevant tax authorities (for example, federal, state and local), including the employee’s share of payroll or similar taxes, as provided in the tax law, regulations or the authority’s administrative practices, not to exceed the highest statutory rate in that jurisdiction. Any elections to have Shares withheld or sold for this purpose will be made in accordance with the requirements established by the Committee for such elections and be in writing in a form acceptable to the Committee.

8.2.3 Elections Under Section 83(i) of the Code. A Participant will not make an election under Section 83(i) of the Code if the Company determines that the Participant is then ineligible to make such an election under applicable law or without the Company’s prior written consent (which will not be unreasonably withheld or delayed, but may be conditioned upon the Participant’s entry into additional commitments as determined by the Company).

9. RESTRICTIONS ON AWARDS.

9.1 Transferability. Except as permitted by the Committee, Awards granted under this Plan, and any interest therein, will not be transferable or assignable by Participant, other than by will or by the laws of descent and distribution, and, with respect to NQSOs for Participants in the U.S., by instrument to an inter vivos or testamentary trust in which the NQSOs are to be passed to beneficiaries upon the death of the trustor (settlor), or by gift to “family member” as that term is defined in Rule 701, and may not be made subject to execution, attachment or similar process. For the avoidance of doubt, the prohibition against assignment and transfer applies to Awards and any Shares underlying the Awards prior to the

issuance of the Shares, and pursuant to the foregoing sentence shall be understood to include, without limitation, a prohibition against any pledge, hypothecation, or other transfer, including any short position, any “put equivalent position” or any “call equivalent position” (in each case, as defined in Rule 16a-1 promulgated under the Exchange Act). Unless an Award is transferred pursuant to the terms of this Section, during the lifetime of the Participant an Award will be exercisable only by the Participant or Participant’s legal representative and any elections with respect to an Award may be made only by the Participant or Participant’s legal representative. The terms of an Award shall be binding upon the executor, administrator, successors and assigns of the Participant who is a party thereto.

9.2 Securities Law and Other Regulatory Compliance. Although this Plan is intended to be a written compensatory benefit plan within the meaning of Rule 701 promulgated under the Securities Act, Awards may be made pursuant to this Plan that do not qualify for exemption under Rule 701 or Section 25102(o). Any requirement of this Plan which is required in law only because of Section 25102(o) need not apply with respect to a particular Award to which Section 25102(o) will not apply. An Award will not be effective unless such Award is in compliance with all applicable U.S. and non-U.S. federal, state and local securities laws, rules and regulations of any governmental body, and the requirements of any stock exchange or automated quotation system upon which the Company’s equity securities may then be listed or quoted, as they are in effect on the date of grant of the Award and also on the date of exercise, settlement or other issuance. Notwithstanding any other provision in this Plan, the Company will have no obligation to issue Shares or deliver certificates for Shares under this Plan prior to (a) obtaining any approvals from governmental agencies that the Company determines are necessary or advisable, and/or (b) compliance with any exemption, completion of any registration or other qualification of such Shares under any U.S. and non-U.S. federal, state or local law or ruling of any governmental body that the Company determines to be necessary or advisable. The Company will be under no obligation to register the Shares with the SEC or to effect compliance with the exemption, registration, qualification or listing requirements of any securities laws, stock exchange or automated quotation system, and the Company will have no liability for any inability or failure to do so.

9.3 Exchange and Buyout of Awards. The Committee may, at any time or from time to time, authorize the Company, with the consent of the respective Participants, to issue new Awards in exchange for the surrender and cancellation of any or all outstanding Awards. Without prior stockholder approval the Committee may reprice Options or SARs (and where such repricing is a reduction in the Exercise Price of outstanding Options or SARs, the consent of the affected Participants is not required provided written notice is provided to them). The Committee may at any time buy from a Participant an Award previously granted with payment in cash, Shares (including Restricted Stock) or other consideration, based on such terms and conditions as the Committee and the Participant may agree.

10. RESTRICTIONS ON SHARES.

10.1 Privileges of Stock Ownership. No Participant will have any of the rights of a stockholder with respect to any Shares until such Shares are issued to the Participant. After Shares are issued to the Participant, the Participant will be a stockholder and have all the rights of a stockholder with respect to such Shares, including the right to vote and receive all dividends or other distributions made or paid with respect to such Shares; provided, that if such Shares are Restricted Stock, then any new, additional or different securities the Participant may become entitled to receive with respect to such Shares by virtue of a stock dividend, stock split or any other change in the corporate or capital structure of the Company will be subject to the same restrictions as the Restricted Stock. The Participant will have no right to retain such stock dividends or stock distributions with respect to Unvested Shares that are repurchased as described in this Section 10.

10.2 Rights of First Refusal and Repurchase. At the discretion of the Committee, the Company may reserve to itself and/or its assignee(s) in the Award Agreement (a) a right of first refusal to purchase all Shares that a Participant (or a subsequent transferee) may propose to transfer to a third party, provided that such right of first refusal terminates upon (i) subject to any applicable market standoff restrictions, the effective date of the first sale of common stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC under the Securities Act (other than a registration statement relating solely to the issuance of common stock pursuant to a business combination or an employee incentive or benefit plan); (ii) any transfer or conversion of Shares made pursuant to a statutory merger or statutory consolidation of the Company with or into another corporation or corporations if the common stock of the surviving corporation or any direct or indirect Parent thereof is registered under the Exchange Act; or (iii) any transfer or conversion of Shares made pursuant to a statutory conversion of the Company into another form of legal entity if the common equity (or comparable equity security) of entity resulting from such conversion is registered under the Exchange Act; and (b) a right to repurchase Unvested Shares held by a Participant for cash and/or cancellation of purchase money indebtedness owed to the Company by the Participant following such Participant’s Termination at any time.

10.3 Agreement to Vote Shares. At the discretion of the Committee, the Company may require that, as a condition to the receipt of the Shares upon issuance of an Award, exercise of an Option or SAR or settlement of an RSU, the Participant and any transferee of the Shares agree to vote such Shares pursuant to the terms of a Voting Agreement by and between the Company and certain of its stockholders.

10.4 Escrow; Pledge of Shares. To enforce any restrictions on a Participant’s Shares, the Committee may require the Participant to deposit all written or electronic certificates representing Shares, together with stock powers or other instruments of transfer approved by the Committee, appropriately endorsed in blank, with the Company or an agent designated by the Company to hold in escrow until such restrictions have lapsed or terminated. The Committee may cause a legend or legends referencing such restrictions to be placed on the written or electronic certificate. Any Participant who is permitted to execute a promissory note as partial or full consideration for the purchase of Shares under this Plan will be required to pledge and deposit with the Company all or part of the Shares so purchased as collateral to secure the payment of Participant’s obligation to the Company under the promissory note; provided, however, that the Committee may require or accept other or additional forms of collateral to secure the payment of such obligation and, in any event, the Company will have full recourse against the Participant under the promissory note notwithstanding any pledge of the Participant’s Shares or other collateral. In connection with any pledge of the Shares, Participant will be required to execute and deliver a written pledge agreement in such form as the Committee will from time to time approve. The Shares purchased with the promissory note may be released from the pledge on a pro rata basis as the promissory note is paid.

10.5 Securities Law Restrictions. All written or electronic certificates for Shares or other securities delivered under this Plan will be subject to such stock transfer orders, legends and other restrictions as the Committee may deem necessary or advisable, including restrictions under any applicable U.S. and non-U.S. federal, state or local securities law, or any rules, regulations and other requirements of the SEC or any stock exchange or automated quotation system upon which the Company’s equity securities may be listed or quoted.

10.6 Transfer Restrictions. All Shares or other securities delivered under this Plan will be subject to any restrictions on transfers of securities as set forth in the Company’s Bylaws, as may be amended from time to time.

11. CORPORATE TRANSACTIONS.

11.1 Acquisitions or Other Combinations. In the event that the Company is subject to an Acquisition or Other Combination, outstanding Awards acquired under the Plan shall be subject to the agreement evidencing the Acquisition or Other Combination, which need not treat all outstanding Awards in an identical manner. Such agreement, without the Participant’s consent, shall provide for one or more of the following with respect to all outstanding Awards as of the effective date of such Acquisition or Other Combination:

(a) The continuation of such outstanding Awards by the Company (if the Company is the successor entity).

(b) The assumption of outstanding Awards by the successor or acquiring entity (if any) in such Acquisition or Other Combination (or by any of its Parents, if any), which assumption, will be binding on all Participants; provided that the exercise price and the number and nature of shares issuable upon exercise of any such option or stock appreciation right, or upon the settlement of any award that is subject to Section 409A of the Code, will be adjusted appropriately pursuant to Section 424(a) and Section 409A of the Code. For the purposes of this Section 11, an Award will be considered assumed if, following the Acquisition or Other Combination, the Award confers the right to purchase or receive, for each Share subject to the Award immediately prior to the Acquisition or Other Combination, the consideration (whether stock, cash, or other securities or property) received in the Acquisition or Other Combination by holders of Shares for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the Acquisition or Other Combination is not solely common stock of the successor corporation or its Parent, the Committee may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of an Option or Stock Appreciation Right or upon the settlement of an RSU, for each Share subject to such Award, to be solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received by holders of Common Stock in the Acquisition or Other Combination.

(c) The substitution by the successor or acquiring entity in such Acquisition or Other Combination (or by any of its Parents, if any) of equivalent awards with substantially the same terms for such outstanding Awards (except that the exercise price and the number and nature of shares issuable upon exercise of any such option or stock appreciation right, or any award that is subject to Section 409A of the Code, will be adjusted appropriately pursuant to Section 424(a) and Section 409A of the Code).

(d) The full or partial exercisability or vesting and accelerated expiration of outstanding Awards.

(e) The settlement of the Fair Market Value of such outstanding Award (whether or not then vested or exercisable) in cash, cash equivalents, or securities of the successor entity (or its Parent, if any), followed by the cancellation of such Awards; provided however, that such Award may be cancelled without consideration if such Award has no value, as determined by the Committee, in its discretion. Subject to Section 409A of the Code, such payment may be made in installments and may be deferred until the date or dates when the Award would have become exercisable or vested. Such payment may be subject to vesting based on the Participant’s continued service, provided that without the Participant’s consent, the vesting schedule shall not be less favorable to the Participant than the schedule under which the Award would have become vested or exercisable. For purposes of this Section 11.1(e), the Fair Market Value of any security shall be determined without regard to any vesting conditions that may apply to such security.

(f) The termination in its entirety of any outstanding Award, without payment of any consideration, that is not exercised in accordance with its terms upon or prior to consummation of the transactions contemplated by the Acquisition or Other Combination within a time specified by the Committee, in its discretion, for such exercise, whether or not such Award is then fully exercisable.

Immediately following an Acquisition or Other Combination, outstanding Awards shall terminate and cease to be outstanding, except to the extent such Awards, have been continued, assumed or substituted, as described in Sections 11.1(a), (b) and/or (c).

11.2 Substitution or Assumption of Awards by the Company. The Company, from time to time, also may substitute or assume outstanding awards granted by another entity, whether in connection with an acquisition of such other entity or otherwise, by either (a) granting an Award under this Plan in substitution of such other entity’s award or (b) assuming and/or converting such award as if it had been granted under this Plan if the terms of such assumed award could be applied to an Award granted under this Plan. Such substitution or assumption will be permissible if the holder of the substituted or assumed award would have been eligible to be granted an Award under this Plan if the other entity had applied the rules of this Plan to such grant. In the event the Company assumes an award granted by another entity, the terms and conditions of such award will remain unchanged (except that the exercise price and the number and nature of shares issuable upon exercise of any such option or stock appreciation right, or any award that is subject to Section 409A of the Code, will be adjusted appropriately pursuant to Section 424(a) or Section 409A of the Code). In the event the Company elects to grant a new Option or SAR in substitution for and rather than assuming an existing option or stock appreciation right, such new Option or SAR may be granted with a similarly adjusted Exercise Price and number of underlying Shares and such other changes approved by the Committee, subject to the consent of the Participant.

12. ADMINISTRATION.

12.1 Committee Authority. This Plan will be administered by the Committee. Subject to the general purposes, terms and conditions of this Plan, and to the direction of the Board, the Committee will have full power to implement and carry out this Plan. Without limitation, the Committee will have the authority to:

(a) construe and interpret this Plan, any Award Agreement and any other agreement or document executed pursuant to this Plan;

(b) prescribe, amend, expand, modify and rescind or terminate rules and regulations relating to this Plan;

(c) approve persons to receive Awards;

(d) determine the form and terms of Awards;

(e) determine the number of Shares or other consideration subject to Awards granted under this Plan;

(f) determine the Fair Market Value in good faith and interpret the applicable provisions of this Plan and the definition of Fair Market Value in connection with circumstances that impact the Fair Market Value, if necessary;

(g) determine whether Awards will be granted singly, in combination with, in tandem with, in replacement of, or as alternatives to, other Awards under this Plan or awards under any other incentive or compensation plan of the Company or any Parent or Subsidiary of the Company;

(h) grant waivers of any conditions of this Plan or any Award;

(i) determine the terms of vesting, exercisability, settlement and payment of Awards to be granted pursuant to this Plan;

(j) correct any defect, supply any omission, or reconcile any inconsistency in this Plan, any Award, any Award Agreement or any Exercise Agreement;

(k) determine whether an Award has vested or become exercisable;

(l) extend the vesting period beyond a Participant’s Termination Date;

(m) adopt rules and/or procedures (including the adoption of any subplan under this Plan) relating to the operation and administration of the Plan to accommodate or facilitate requirements of local law and procedures outside of the United States;

(n) delegate any of the foregoing to a subcommittee consisting of one or more directors or executive officers pursuant to a specific delegation as may otherwise be permitted by applicable law;

(o) change the vesting schedule of Awards under the Plan prospectively in the event that the Participant’s service status changes between full and part time status in accordance with Company policies relating to work schedules and vesting of Awards; and

(p) make all other determinations necessary or advisable in connection with the administration of this Plan.

12.2 Standalone, Tandem and Substitute Awards. Awards granted under the Plan may, in the sole discretion of the Committee, be granted either alone or in addition to, in tandem with, or in substitution for, any other Award granted under the Plan. Awards granted in addition to or in tandem with other Awards may be granted either at the same time as or at a different time from the grant of such other Awards.

12.3 Committee Composition and Discretion. The Board may delegate full administrative authority over the Plan and Awards to a Committee consisting of at least one member of the Board (or such greater number as may then be required by applicable law). Unless in contravention of any express terms of this Plan or Award, any determination made by the Committee with respect to any Award will be made in its sole discretion either (a) at the time of grant of the Award, or (b) subject to Section 4.9 hereof, at any later time. Any such determination will be final and binding on the Company and on all persons having an interest in any Award under this Plan. To the extent permitted by applicable law, the Committee may delegate to one or more directors or officers of the Company the authority to grant an Award under this Plan.

12.4 Nonexclusivity of the Plan. Neither the adoption of this Plan by the Board, the submission of this Plan to the stockholders of the Company for approval, nor any provision of this Plan will be construed as creating any limitations on the power of the Board to adopt such additional compensation arrangements as it may deem desirable, including, without limitation, the granting of stock options and other equity awards otherwise than under this Plan, and such arrangements may be either generally applicable or applicable only in specific cases.

12.5 Governing Law. This Plan and all agreements hereunder shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to that body of laws pertaining to conflict of laws.

13. EFFECTIVENESS, AMENDMENT AND TERMINATION OF THE PLAN.

13.1 Adoption and Stockholder Approval. This Plan will become effective on the date that it is adopted by the Board (the “Effective Date”). This Plan will be approved by the stockholders of the Company (excluding Shares issued pursuant to this Plan), consistent with applicable laws, within twelve (12) months before or after the Effective Date. Upon the Effective Date, the Committee may grant Awards pursuant to this Plan; provided, however, that: (a) if stockholder approval is not obtained consistent with this paragraph, at such time as timely stockholder approval is no longer possible, no Option or SAR may thereafter be exercised and any purchased shares will revert to the Company and be refunded in full; (b) no Option or SAR granted pursuant to an increase in the number of Shares approved by the Board shall be exercised prior to the time such increase has been approved by the stockholders of the Company; (c) in the event that initial stockholder approval is not obtained within the time period provided herein, all Awards for which only the exemption from California’s securities qualification requirements provided by Section 25102(o) can apply shall be canceled, any Shares issued pursuant to any such Award shall be canceled and any purchase of such Shares issued hereunder shall be rescinded; and (d) Awards (to which only the exemption from California’s securities qualification requirements provided by Section 25102(o) can apply) granted pursuant to an increase in the number of Shares approved by the Board which increase is not approved by stockholders within the time then required under Section 25102(o) shall be canceled, any Shares issued pursuant to any such Awards shall be canceled, and any purchase of Shares subject to any such Award shall be rescinded.

13.2 Term of Plan. Unless earlier terminated as provided herein, this Plan will automatically terminate ten (10) years after the Effective Date.

13.3 Amendment or Termination of Plan. Subject to Section 4.9 hereof, the Board may at any time (a) terminate or amend this Plan in any respect, including without limitation amendment of any form of Award Agreement or instrument to be executed pursuant to this Plan and (b) terminate any and all outstanding Options, SARs or RSUs upon a dissolution or liquidation of the Company, followed by the payment of creditors and the distribution of any remaining funds to the Company’s stockholders; provided, however, that the Board will not, without the approval of the stockholders of the Company, amend this Plan in any manner that requires such stockholder approval pursuant to Section 25102(o) or pursuant to the Code or the regulations promulgated under the Code as such provisions apply to ISO plans. The termination of the Plan, or any amendment thereof, shall not affect any Share previously issued or any Award previously granted under the Plan.

14. DEFINITIONS. For all purposes of this Plan, the following terms will have the following meanings.

“Acquisition,” for purposes of Section 11, means:

(a) any consolidation or merger in which the Company is a constituent entity or is a party in which the voting stock and other voting securities of the Company that are outstanding immediately prior to the consummation of such consolidation or merger represent, or are converted into, securities of the surviving entity of such consolidation or merger (or of any Parent of such surviving entity) that, immediately after the consummation of such consolidation or merger, together possess less than fifty percent (50%) of the total voting power of all voting securities of such surviving entity (or of any of its Parents, if any) that are outstanding immediately after the consummation of such consolidation or merger;

(b) a sale or other transfer by the holders thereof of outstanding voting stock and/or other voting securities of the Company possessing more than fifty percent (50%) of the total voting power of all outstanding voting securities of the Company, whether in one transaction or in a series of related transactions, pursuant to an agreement or agreements to which the Company is a party and that has been approved by the Board, and pursuant to which such outstanding voting securities are sold or transferred to a single person or entity, to one or more persons or entities who are Affiliates of each other, or to one or more persons or entities acting in concert; or

(c) the sale, lease, transfer or other disposition, in a single transaction or series of related transactions, by the Company and/or any Subsidiary or Subsidiaries of the Company, of all or substantially all the assets of the Company and its Subsidiaries taken as a whole (or, if substantially all of the assets of the Company and its Subsidiaries taken as a whole are held by one or more Subsidiaries, the sale or disposition (whether by consolidation, merger, conversion or otherwise) of such Subsidiaries of the Company), except where such sale, lease, transfer or other disposition is made to the Company or one or more wholly owned Subsidiaries of the Company.

Notwithstanding the foregoing, the following transactions shall not constitute an “Acquisition”: (1) the closing of the Company’s first public offering pursuant to an effective registration statement filed under the Securities Act or (2) any transaction the sole purpose of which is to change the state of incorporation of the Company or to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities immediately before such transaction.

“Affiliate” of a specified person means a person that directly, or indirectly through one or more intermediaries, controls or is controlled by, or is under common control with, the person specified (where, for purposes of this definition, the term “control” (including the terms “controlling,” “controlled by” and “under common control with”) means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of a person, whether through the ownership of voting securities, by contract, or otherwise.

“Award” means any award pursuant to the terms and conditions of this Plan, including any Option, Restricted Stock Unit, Stock Appreciation Right or Restricted Stock Award.

“Award Agreement” means, with respect to each Award, the executed written or electronic agreement between the Company and the Participant setting forth the terms and conditions of the Award as approved by the Committee. For purposes of the Plan, the Award Agreement may be accepted by a Participant via written, electronic or other means, subject to requirements under applicable law.

“Board” means the Board of Directors of the Company.

“Cause” means Termination because of (a) Participant’s unauthorized misuse of the Company or a Parent or Subsidiary of the Company’s trade secrets or proprietary information, (b) Participant’s conviction of or plea of nolo contendere to a felony or a crime involving moral turpitude, (c) Participant’s committing an act of fraud against the Company or a Parent or Subsidiary of the Company or (d) Participant’s gross negligence or willful misconduct in the performance of his or her duties that has had or will have a material adverse effect on the Company or Parent or Subsidiary of the Company’s reputation or business.

“Code” means the U.S. Internal Revenue Code of 1986, as amended.

“Committee” means the committee created and appointed by the Board to administer this Plan, or if no committee is created and appointed, the Board.

“Company” means Avalyn Pharma Inc., a Delaware corporation, or any successor corporation.

“Disability” means a Participant is unable to perform the duties of his or her customary position of employment by reason of any medically determinable physical or mental impairment that can be expected to result in death or that can be expected to last for a continuous period of not less than twelve (12) months. The Committee may require such medical or other evidence as it deems necessary to judge the nature and permanency of the Participant’s condition.

“Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended.

“Exercise Price” means the price per Share at which a holder of an Option or a SAR may purchase Shares issuable upon exercise of the Option or the SAR.

“Fair Market Value” means, as of any date, the value of a Share determined as follows:

(a) if such Share is then publicly traded on a national securities exchange, its closing price on the date of determination on the principal national securities exchange on which the Share is listed or admitted to trading as reported in The Wall Street Journal;

(b) if such Share is publicly traded but is not listed or admitted to trading on a national securities exchange, the average of the closing bid and ask prices on the date of determination as reported by The Wall Street Journal (or as otherwise reported by any newspaper or other source as the Committee may determine); or

(c) if none of the foregoing is applicable to the valuation in question, by the Committee in good faith.

“Option” means an award of an option to purchase Shares pursuant to Section 4 of this Plan.

“Other Combination” for purposes of Section 11 means any (a) consolidation or merger in which the Company is a constituent entity and is not the surviving entity of such consolidation or merger or (b) any conversion of the Company into another form of entity; provided that such consolidation, merger or conversion does not constitute an Acquisition.

“Parent” of a specified entity means, any entity that, either directly or indirectly, owns or controls such specified entity, where for this purpose, “control” means the ownership of stock, securities or other interests that possess at least a majority of the voting power of such specified entity (including indirect ownership or control of such stock, securities or other interests).

“Participant” means a person who receives an Award under this Plan.

“Plan” means this 2022 Equity Incentive Plan, as amended from time to time.

“Purchase Price” means the price at which a Participant may purchase Restricted Stock pursuant to this Plan.

“Restricted Stock” means Shares purchased pursuant to a Restricted Stock Award under this Plan.

“Restricted Stock Award” means an award of Shares pursuant to Section 5 hereof.

“Restricted Stock Unit” or “RSU” means an award made pursuant to Section 6 hereof.

“Rule 701” means Rule 701 et seq. promulgated by the SEC under the Securities Act.

“SEC” means the U.S. Securities and Exchange Commission.

“Section 25102(o)” means Section 25102(o) of the California Corporations Code.

“Securities Act” means the U.S. Securities Act of 1933, as amended.

“Shares” means shares of the Company’s Common Stock, $0.001 par value per share, reserved for issuance under this Plan, as adjusted pursuant to Sections 2.2 and 11 hereof, and any successor security.

“Stock Appreciation Right” or “SAR” means an award granted pursuant to Section 7 hereof.

“Subsidiary” means any entity (other than the Company) in an unbroken chain of entities beginning with the Company if each of the entities other than the last entity in the unbroken chain owns stock or other equity securities representing fifty percent (50%) or more of the total combined voting power of all classes of stock or other equity securities in one of the other entities in such chain.

“Termination” or “Terminated” means, for purposes of this Plan with respect to a Participant, that the Participant has for any reason ceased to provide services as an employee, officer, director or consultant to the Company or a Parent or Subsidiary of the Company. A Participant will not be deemed to have ceased to provide services while the Participant is on a bona fide leave of absence, if such leave was approved by the Company in writing. In the case of an approved leave of absence, the Committee may make such provisions respecting crediting of service, including suspension of vesting of the Award (including pursuant to a formal policy adopted from time to time by the Company) it may deem appropriate. The Committee will have sole discretion to determine whether a Participant has ceased to provide services and the effective date on which the Participant ceased to provide services (the “Termination Date”).

“Unvested Shares” means “Unvested Shares” as defined in the Award Agreement for an Award.

“Vested Shares” means “Vested Shares” as defined in the Award Agreement for an Award.

OPTION GRANT NO. ___

NOTICE OF STOCK OPTION GRANT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

The Optionee named below (“Optionee”) has been granted an option (this “Option”) to purchase shares of Common Stock, $0.001 par value per share (the “Common Stock”), of Avalyn Pharma Inc., a Delaware corporation (the “Company”), pursuant to the Company’s 2022 Equity Incentive Plan (the “Plan”) on the terms, and subject to the conditions, described below and in the Stock Option Agreement attached hereto as Exhibit A, including its annexes (the “Stock Option Agreement”).

General; Agreement: By signatures below, Optionee and the Company agree that this Option is granted under and governed by this Notice of Stock Option Grant (this “Grant Notice”) and by the provisions of the Plan and the Stock Option Agreement. The Plan and the Stock Option Agreement are incorporated herein by reference. Capitalized terms used but not defined herein shall have the meanings given to them in the Plan or in the Stock Option Agreement, as applicable. By signing below, Optionee acknowledges receipt of a copy of this Grant Notice, the Plan and the Stock Option Agreement, represents that Optionee has carefully read and is familiar with their provisions, and hereby accepts the Option subject to all of their respective terms and conditions. Optionee acknowledges that there may be adverse tax consequences upon exercise of the Option or disposition of the Shares and that Optionee should consult a tax adviser prior to such exercise or disposition. Optionee agrees and acknowledges that the Vesting Schedule may change prospectively in the event that Optionee’s service status changes between full and part time status in accordance with Company policies relating to work schedules and vesting of equity awards.

Execution and Delivery: This Grant Notice may be executed and delivered electronically whether via the Company’s intranet or the Internet site of a third party or via email or any other means of electronic delivery specified by the Company. By Optionee’s acceptance hereof (whether written, electronic or otherwise), Optionee agrees, to the fullest extent permitted by law, that in lieu of receiving documents in paper format, Optionee accepts the electronic delivery of any documents that the Company (or any third party the Company may designate), may deliver in connection with this grant (including the Plan, this Grant Notice, the Stock Option Agreement, the information described in Rules 701(e)(2), (3), (4) and (5) under the Securities Act (the “701 Disclosures”), account statements, or other communications or information) whether via the Company’s intranet or the Internet site of such third party or via email or such other means of electronic delivery specified by the Company.

AVALYN PHARMA INC.

Exhibit A

Stock Option Agreement

Exhibit A

STOCK OPTION AGREEMENT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

This Stock Option Agreement (this “Agreement”) is made and entered into as of the date of grant (the “Date of Grant”) set forth on the Notice of Stock Option Grant attached as the facing page to this Agreement (the “Grant Notice”) by and between Avalyn Pharma Inc., a Delaware corporation (the “Company”), and the optionee named on the Grant Notice (“Optionee”). Capitalized terms not defined in this Agreement shall have the meaning ascribed to them in the Company’s 2022 Equity Incentive Plan (the “Plan”) or in the Grant Notice, as applicable.

1. Grant of Option. The Company hereby grants to Optionee an option (this “Option”) to purchase up to the total number of shares of Common Stock of the Company, $0.001 par value per share (the “Common Stock”), set forth in the Grant Notice as the Shares (the “Shares”) at the Exercise Price Per Share set forth in the Grant Notice (the “Exercise Price”), subject to all of the terms and conditions of the Grant Notice, this Agreement and the Plan. If designated as an Incentive Stock Option in the Grant Notice, this Option is intended to qualify as an incentive stock option (the “ISO”) within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”).

2. Exercise Period.

2.1 Exercise Period of Option. This Option is considered to be “vested” with respect to any particular Shares when this Option is exercisable with respect to such Shares. This Option will become vested during its term as to portions of the Shares in accordance with the Vesting Schedule set forth in the Grant Notice. Notwithstanding any provision in the Plan or this Agreement to the contrary, on or after Optionee’s Termination Date, this Option may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date.

2.2 Vesting of Option Shares. Shares with respect to which this Option is vested and exercisable at a given time pursuant to the Vesting Schedule set forth in the Grant Notice are “Vested Shares.” Shares with respect to which this Option is not vested and exercisable at a given time pursuant to the Vesting Schedule set forth in the Grant Notice are “Unvested Shares.”

2.3 Expiration. The Option shall expire on the Expiration Date set forth in the Grant Notice or earlier as provided in Section 3 below.

3. Termination.

3.1 Termination for Any Reason Except Death, Disability or Cause. Except as provided in subsection 3.2 in a case in which Optionee dies within three (3) months after Optionee is Terminated other than for Cause, if Optionee is Terminated for any reason (other than Optionee’s death or Disability or for Cause), then (a) on and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date and (b) this Option to the extent (and only to the extent) that it is exercisable with respect to Vested Shares on Optionee’s Termination Date, may be exercised by Optionee no later than three (3) months after Optionee’s Termination Date (but in no event may this Option be exercised after the Expiration Date).

3.2 Termination Because of Death or Disability. If Optionee is Terminated because of Optionee’s death or Disability (or if Optionee dies within three (3) months of the date of Optionee’s Termination for any reason other than for Cause), then (a) on and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date and (b) this Option, to the extent (and only to the extent) that it is exercisable with respect to Vested Shares on Optionee’s Termination Date, may be exercised by Optionee (or Optionee’s legal representative) no later than twelve (12) months after Optionee’s Termination Date, but in no event later than the Expiration Date. Any exercise of this Option beyond (i) three (3) months after the date Optionee ceases to be an employee when Optionee’s Termination is for any reason other than Optionee’s death or disability, within the meaning of Section 22(e)(3) of the Code; or (ii) twelve (12) months after the date Optionee ceases to be an employee when the termination is for Optionee’s disability, within the meaning of Section 22(e)(3) of the Code, is deemed to be an NQSO.

3.3 Termination for Cause. If Optionee is Terminated for Cause, then Optionee may exercise this Option, but only with respect to any Shares that are Vested Shares on Optionee’s Termination Date, and this Option shall expire on Optionee’s Termination Date, or at such later time and on such conditions as may be affirmatively determined by the Committee. On and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date.

3.4 No Obligation to Employ. Nothing in the Plan or this Agreement shall confer on Optionee any right to continue in the employ of, or other relationship with, the Company or any Parent or Subsidiary of the Company, or limit in any way the right of the Company or any Parent or Subsidiary of the Company to terminate Optionee’s employment or other relationship at any time, with or without Cause.

4. Manner of Exercise.

4.1 Stock Option Exercise Notice and Agreement. To exercise this Option, Optionee (or in the case of exercise after Optionee’s death or incapacity, Optionee’s executor, administrator, heir or legatee, as the case may be) must deliver to the Company an executed Stock Option Exercise Notice and Agreement in the form attached hereto as Annex A, or in such other form as may be approved by the Committee from time to time (the “Exercise Agreement”) and payment for the shares being purchased in accordance with this Agreement. The Exercise Agreement shall set forth, among other things, (i) Optionee’s election to exercise this Option, (ii) the number of Shares being purchased, (iii) any representations, warranties and agreements regarding Optionee’s investment intent and access to information as may be required by the Company to comply with applicable securities laws in connection with any exercise of this Option and (iv) any other agreements required by the Company. If someone other than Optionee exercises this Option, then such person must submit documentation reasonably acceptable to the Company verifying that such person has the legal right to exercise this Option and such person shall be subject to all of the restrictions contained herein as if such person were Optionee.

4.2 Limitations on Exercise. This Option may not be exercised unless such exercise is in compliance with all applicable federal and state securities laws, as they are in effect on the date of exercise.

4.3 Payment. The Exercise Agreement shall be accompanied by full payment of the Exercise Price for the shares being purchased in cash (by check, Automated Clearing House (“ACH”) or wire transfer), or where permitted by law:

(a) by cancellation of indebtedness of the Company owed to Optionee;

(b) by surrender of shares of the Company that are free and clear of all security interests, pledges, liens, claims or encumbrances and: (i) for which the Company has received “full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been fully paid with respect to such shares) or (ii) that were obtained by Optionee in the public market;

(c) by participating in a formal cashless exercise program implemented by the Committee in connection with the Plan;

(d) provided that a public market for the Common Stock exists and subject to compliance with applicable law, by exercising as set forth below, through a “same day sale” commitment from Optionee and a broker-dealer whereby Optionee irrevocably elects to exercise this Option and to sell a portion of the Shares so purchased sufficient to pay the total Exercise Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or

(e) by any combination of the foregoing or any other method of payment approved by the Committee that constitutes legal consideration for the issuance of Shares.

For avoidance of uncertainty: ACH transfers that have been received by the Company into its bank account designated for receipt of such transfers shall be deemed to have been received for all purposes of this Option as of the date on which such transfers were initiated from the Optionee’s account and made irrevocable by Optionee.

4.4 Tax Withholding. Prior to the issuance of the Shares upon exercise of the Option, Optionee must pay or provide for foreign, federal, state and local income tax, social insurance, payroll tax, fringe benefits tax, payment on account withholding and other tax-related items related to Optionee’s participation in the Plan and legally applicable to Optionee, including, as applicable, obligations of the Company (all the foregoing tax-related items, “Tax-Related Items”). If the Committee permits, Optionee may provide for payment of withholding taxes upon exercise of the Option by requesting that the Company retain the number of Shares with a Fair Market Value equal to the amount of taxes required to be withheld; or to arrange a mandatory “sell to cover” on Optionee’s behalf (without further authorization); but in no event will the Company withhold Shares or “sell to cover” if such withholding would result in adverse accounting consequences to the Company. In case of stock withholding or a sell to cover, the Company shall issue the net number of Shares to Optionee by deducting the Shares retained from the Shares issuable upon exercise. The Company may withhold or account for Tax-Related Items by considering applicable minimum statutory withholding rates or other applicable statutory rates in Optionee’s country, including maximum applicable rates.

4.5 Issuance of Shares. Provided that the Exercise Agreement and payment are in form and substance satisfactory to counsel for the Company, the Company shall issue the Shares issuable upon a valid exercise of this Option registered in the name of Optionee, Optionee’s authorized assignee, or Optionee’s legal representative, and shall deliver certificates representing the Shares with the appropriate legends affixed thereto.

5. Compliance with Laws and Regulations. The Plan and this Agreement are intended to comply with Section 25102(o) and Rule 701. Any provision of this Agreement that is inconsistent with Section 25102(o) or Rule 701 shall, without further act or amendment by the Company or the Committee, be reformed to comply with the requirements of Section 25102(o) and/or Rule 701. The exercise of this Option and the issuance and transfer of Shares shall be subject to compliance by the Company and Optionee with all applicable requirements of federal and state securities laws and with all applicable requirements of any stock exchange on which the Common Stock may be listed at the time of such issuance or transfer. Optionee understands that the Company is under no obligation to register or qualify the Shares with the SEC, any state securities commission or any stock exchange to effect such compliance.

6. Nontransferability of Option. This Option may not be transferred in any manner other than by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to a testamentary trust in which the options are to be passed to beneficiaries upon the death of the trustor (settlor) or a revocable trust, or by gift to “immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may be exercised during the lifetime of Optionee only by Optionee or in the event of Optionee’s incapacity, by Optionee’s legal representative. The terms of this Option shall be binding upon the executors, administrators, successors and assigns of Optionee.

7. RESTRICTIONS ON TRANSFER.

7.1 Disposition of Shares. Optionee hereby agrees that Optionee shall make no disposition of any of the Shares (other than as permitted by this Agreement and the Company’s Bylaws (the “Bylaws”)) unless and until:

(a) Optionee shall have notified the Company of the proposed disposition and provided a written summary of the terms and conditions of the proposed disposition;

(b) Optionee shall have complied with all requirements of this Agreement and the Bylaws applicable to the disposition of the Shares;

(c) Optionee shall have provided the Company with written assurances, in form and substance satisfactory to counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or under any applicable state securities laws or (ii) all appropriate actions necessary for compliance with the registration requirements of the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) or applicable state securities laws have been taken; and

(d) Optionee shall have provided the Company with written assurances, in form and substance satisfactory to the Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares pursuant to the provisions of the regulations promulgated under Section 25102(o), Rule 701 or under any other applicable securities laws or adversely affect the Company’s ability to rely on the exemption(s) from registration under the Securities Act or under any other applicable securities laws for the grant of the Option, the issuance of Shares thereunder or any other issuance of securities under the Plan.

7.2 Restriction on Transfer. Optionee shall not transfer, assign, grant a lien or security interest in, pledge, hypothecate, encumber or otherwise dispose of any of the Shares which are subject to the restrictions on transfer set forth in the Bylaws and the Company’s Right of First Refusal described below, except as permitted by this Agreement.

7.3 Transferee Obligations. Each person (other than the Company) to whom the Shares are transferred by means of one of the permitted transfers specified in this Agreement must, as a condition precedent to the validity of such transfer, acknowledge in writing to the Company that such person is bound by the provisions of this Agreement and that the transferred Shares are subject to (i) the restrictions on transfer set forth in the Bylaws, (ii) the Company’s Right of First Refusal granted hereunder and (iii) the market stand-off provisions of Section 8 below, to the same extent such Shares would be so subject if retained by Optionee.

8. MARKET STANDOFF AGREEMENT. Optionee agrees that, subject to any early release provisions that apply pro rata to stockholders of the Company according to their holdings of Common Stock (determined on an as-converted into Common Stock basis), Optionee will not, for a period of up to one hundred eighty (180) days (plus up to an additional thirty five (35) days to the extent reasonably requested by the Company or such underwriter(s) to accommodate regulatory restrictions on the publication or other distribution of research reports or earnings releases by the Company, including NASD and NYSE rules)

following the effective date of the registration statement filed with the SEC relating to the initial underwritten sale of Common Stock of the Company to the public under the Securities Act (the “IPO”), directly or indirectly sell, offer to sell, grant any option for the sale of, or otherwise dispose of any Common Stock or securities convertible into Common Stock, except for: (i) transfers of Shares permitted under Section 9.6 hereof so long as such transferee furnishes to the Company and the managing underwriter their written consent to be bound by this Section 8 as a condition precedent to such transfer; and (ii) sales of any securities to be included in the registration statement for the IPO. For the avoidance of doubt, the provisions of this Section shall only apply to the IPO. The restricted period shall in any event terminate two (2) years after the closing date of the IPO. In order to enforce the foregoing covenant, the Company shall have the right to place restrictive legends on the certificates representing the Shares subject to this Section and to impose stop transfer instructions with respect to the Shares until the end of such period. Optionee further agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing restrictions on transfer. For the avoidance of doubt, the foregoing provisions of this Section shall not apply to any registration of securities of the Company (a) under an employee benefit plan or (b) in a merger, consolidation, business combination or similar transaction.

9. COMPANY’S RIGHT OF FIRST REFUSAL. Subject to the restrictions on transfer set forth in the Bylaws, before any Shares held by Optionee or any transferee of such Shares (either sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its assignee(s) will have a right of first refusal to purchase the Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First Refusal”).

9.1 Notice of Proposed Transfer. The Holder of the Offered Shares will deliver to the Company a written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer the Offered Shares; (ii) the name and address of each proposed purchaser or other transferee (the “Proposed Transferee”); (iii) the number of Offered Shares to be transferred to each Proposed Transferee; (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Offered Shares (the “Offered Price”); and (v) that the Holder acknowledges this Notice is an offer to sell the Offered Shares to the Company and/or its assignee(s) pursuant to the Company’s Right of First Refusal at the Offered Price as provided for in this Agreement.

9.2 Exercise of Right of First Refusal. At any time within thirty (30) days after the date of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all (or, with the consent of the Holder, less than all) the Offered Shares proposed to be transferred to any one or more of the Proposed Transferees named in the Notice, at the purchase price, determined as specified below.

9.3 Purchase Price. The purchase price for the Offered Shares purchased under this Section will be the Offered Price, provided that if the Offered Price consists of no legal consideration (as, for example, in the case of a transfer by gift) then the purchase price will be the fair market value of the Offered Shares as determined in good faith by the Committee. If the Offered Price includes consideration other than cash, then the value of the non-cash consideration, as determined in good faith by the Committee, will conclusively be deemed to be the cash equivalent value of such non-cash consideration.

9.4 Payment. Payment of the purchase price for the Offered Shares will be payable, at the option of the Company and/or its assignee(s) (as applicable), by check or by cancellation of all or a portion of any outstanding purchase money indebtedness owed by the Holder to the Company (or to such assignee, in the case of a purchase of Offered Shares by such assignee) or by any combination thereof. The purchase price will be paid without interest within sixty (60) days after the Company’s receipt of the Notice, or, at the option of the Company and/or its assignee(s), in the manner and at the time(s) set forth in the Notice.

9.5 Holder’s Right to Transfer. If all of the Offered Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided in this Section, then the Holder may sell or otherwise transfer such Offered Shares to each Proposed Transferee at the Offered Price or at a higher price, provided that (i) such sale or other transfer is consummated within ninety (90) days after the date of the Notice, (ii) any such sale or other transfer is effected in compliance with all applicable securities laws, and (iii) each Proposed Transferee agrees in writing that the provisions of this Section will continue to apply to the Offered Shares in the hands of such Proposed Transferee. If the Offered Shares described in the Notice are not transferred to each Proposed Transferee within such ninety (90) day period, then a new Notice must be given to the Company pursuant to which the Company will again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred.

9.6 Exempt Transfers. Notwithstanding anything to the contrary in this Section, the following transfers of Shares will be exempt from the Right of First Refusal: (i) the transfer of any or all of the Shares during Optionee’s lifetime by gift or on Optionee’s death by will or intestacy to any member(s) of Optionee’s “Immediate Family” (as defined below) or to a trust for the benefit of Optionee and/or member(s) of Optionee’s Immediate Family, provided that each transferee or other recipient agrees in a writing satisfactory to the Company that the provisions of this Section will continue to apply to the transferred Shares in the hands of such transferee or other recipient; (ii) any transfer of Shares made pursuant to a statutory merger, statutory consolidation of the Company with or into another corporation or corporations or a conversion of the Company into another form of legal entity (except that the Right of First Refusal will continue to apply thereafter to such Shares, in which case the surviving corporation of such merger or consolidation or the resulting entity of such conversion shall succeed to the rights of the Company under this Section unless the agreement of merger or consolidation or conversion expressly otherwise provides); or (iii) any transfer of Shares pursuant to the winding up and dissolution of the Company. As used herein, the term “Immediate Family” will mean Optionee’s spouse, the lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild or adopted grandchild of Optionee or Optionee’s spouse, or the spouse of any of the above or Spousal Equivalent, as defined herein. As used herein, a person is deemed to be a “Spousal Equivalent” provided the following circumstances are true: (i) irrespective of whether or not Optionee and the Spousal Equivalent are the same sex, they are the sole spousal equivalent of the other for the last twelve (12) months, (ii) they intend to remain so indefinitely, (iii) neither are married to anyone else, (iv) both are at least 18 years of age and mentally competent to consent to contract, (v) they are not related by blood to a degree of closeness that which would prohibit legal marriage in the state in which they legally reside, (vi) they are jointly responsible for each other’s common welfare and financial obligations, and (vii) they reside together in the same residence for the last twelve (12) months and intend to do so indefinitely.

9.7 Termination of Right of First Refusal. The Right of First Refusal will terminate as to all Shares: (i) on the effective date of the first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC under the Securities Act (other than a registration statement relating solely to the issuance of Common Stock pursuant to a business combination or an employee incentive or benefit plan); (ii) on any transfer or conversion of Shares made pursuant to a statutory merger or statutory consolidation of the Company with or into another corporation or corporations if the common stock of the surviving corporation or any direct or indirect parent corporation thereof is registered under the Exchange Act; or (iii) on any transfer or conversion of Shares made pursuant to a statutory conversion of the Company into another form of legal entity if the common equity (or comparable equity security) of entity resulting from such conversion is registered under the Exchange Act.

9.8 Encumbrances on Shares. Optionee may grant a lien or security interest in, or pledge, hypothecate or encumber Shares only if each party to whom such lien or security interest is granted, or to whom such pledge, hypothecation or other encumbrance is made, agrees in a writing satisfactory to the Company that: (i) such lien, security interest, pledge, hypothecation or encumbrance will not adversely affect or impair the Right of First Refusal or the rights of the Company and/or its assignee(s) with respect

thereto and will not apply to such Shares after they are acquired by the Company and/or its assignees under this Section; and (ii) the provisions of this Agreement will continue to apply to such Shares in the hands of such party and any transferee of such party.

9.9 Effect of Company Co-Sale Agreement. If Optionee is, or at any time hereafter becomes, a party to or otherwise bound by (i) the Company’s Amended and Restated Right of First Refusal and Co-Sale Agreement dated as of April 24, 2020 among the Company and certain stockholders of the Company, as such may be amended and/or restated from time to time, and/or (ii) any other agreement that is a successor to or replacement of such agreement (collectively, the “Company Co-Sale Agreement”), then, in the event of any conflict or inconsistency between the provisions of Section 8 hereof and/or this Section 9 and any provisions in the Company Co-Sale Agreement granting the Company and/or other security holders of the Company rights of first refusal and/or co-sale rights with respect to any or all of the Shares or imposing market stand-off restrictions, Optionee agrees with the Company that the terms and conditions of the Company Co-Sale Agreement shall apply, govern, supersede and prevail over (and in lieu of) the provisions of Section 8 hereof and/or of this Section 9 (as applicable) so long as the Company Co-Sale Agreement is in effect and Optionee is a party to or bound thereby. If the Company Co-Sale Agreement is no longer in effect or if Optionee is not a party to or bound thereby, then the provisions of this Section 9 shall apply in full force and effect until termination of the Right of First Refusal and the provisions of Section 8 hereof shall apply in full force and effect in accordance with its terms.

10. RIGHTS AS A STOCKHOLDER. Optionee shall not have any of the rights of a stockholder with respect to any Shares unless and until such Shares are issued to Optionee. Subject to the terms and conditions of this Agreement, Optionee will have all of the rights of a stockholder of the Company with respect to the Shares from and after the date that Shares are issued to Optionee pursuant to, and in accordance with, the terms of the Exercise Agreement until such time as Optionee disposes of the Shares or the Company and/or its assignee(s) exercise(s) the Right of First Refusal. Upon an exercise of the Right of First Refusal, Optionee will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to receive payment for the Shares so purchased in accordance with the provisions of this Agreement, and Optionee will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation.

11. ESCROW. As security for Optionee’s faithful performance of this Agreement, Optionee agrees, immediately upon receipt of the stock certificate(s) evidencing the Shares to deliver such certificate(s) to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is hereby appointed to hold such certificate(s) in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Optionee and the Company agree that Escrow Holder will not be liable to any party to this Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the duties of Escrow Holder under this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to the transactions contemplated by this Agreement and will not be liable for any act or omission taken by Escrow Holder in good faith reliance on such documents, the advice of counsel or a court order. The Shares will be released from escrow upon termination of the Right of First Refusal.

12. Company Co-Sale Agreement and Voting Agreement. As a material inducement and consideration for the Company to enter into this Agreement, Optionee hereby agrees that if, the Company requests Optionee to enter into and become a party to (a) the Company Co-Sale Agreement (and to subject the Shares to the rights of first refusal held by the Company and other Company investors thereunder and the co-sale rights of other investors thereunder) and/or (b) the Company Voting Agreement (pursuant to which Optionee would agree to vote all shares of Company stock held by Optionee for the election of directors and in favor of certain material transactions (such as mergers or sales of the Company), then Optionee will enter into such agreements and execute and deliver signature pages thereto (as requested by

the Company) in such capacities as the Company requests, at the time of exercising this Option and as a condition to such exercise or at any later time.

13. RESTRICTIVE LEGENDS AND STOP-TRANSFER ORDERS.

13.1 Legends. Optionee understands and agrees that the Company will place the legends set forth below or similar legends on any stock certificate(s) evidencing the Shares, together with any other legends that may be required by state or U.S. Federal securities laws, the Company’s Certificate of Incorporation or Bylaws, any other agreement between Optionee and the Company, or any agreement between Optionee and any third party (and any other legend(s) that the Company may become obligated to place on the stock certificate(s) evidencing the Shares under the terms of any agreement to which the Company is or may become bound or obligated):

(a) THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS.

(b) THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON RESALE AND TRANSFER, INCLUDING THE RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S) AS SET FORTH IN A STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH SALE AND TRANSFER RESTRICTIONS, INCLUDING THE RIGHT OF FIRST REFUSAL, ARE BINDING ON TRANSFEREES OF THESE SHARES.

(c) THE SHARES EVIDENCED HEREBY ARE SUBJECT TO A RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE CORPORATION AND/OR ITS ASSIGNEE(S), AS PROVIDED IN THE BYLAWS OF THE CORPORATION, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE CORPORATION.

(d) THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A MARKET STANDOFF RESTRICTION AS SET FORTH IN A CERTAIN STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE EFFECTIVE DATE OF CERTAIN PUBLIC OFFERINGS OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES.

Optionee agrees that if Optionee becomes a party to (i) the Company Co-Sale Agreement or (ii) (A) the Company’s Amended and Restated Voting Agreement dated as of April 24, 2020 among the Company and certain stockholders of the Company, as such may be amended and/or restated from time to time, and/or (B) any other voting agreement that is a successor to or replacement of such agreement (collectively, the “Company Voting Agreement”), then Optionee agrees that the stock certificate(s) evidencing the Shares shall, in addition, bear any legends required under the Company Co-Sale Agreement and/or the Company Voting Agreement, as applicable.

13.2 Stop-Transfer Instructions. Optionee agrees that, to ensure compliance with the restrictions imposed by this Agreement and the Bylaws, the Company may issue appropriate “stop-transfer” instructions to its transfer agent, if any, and if the Company transfers its own securities, it may make appropriate notations to the same effect in its own records.

13.3 Refusal to Transfer. The Company will not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of the Bylaws or this Agreement or (ii) to treat as owner of such Shares, or to accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares have been so transferred.

14. CERTAIN TAX CONSEQUENCES. Set forth below is a brief summary as of the Effective Date of the Plan of some of the federal tax consequences of exercise of the Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THE OPTION OR DISPOSING OF THE SHARES.

14.1 Exercise of ISO. If the Option qualifies as an ISO, there will be no regular federal income tax liability upon the exercise of the Option, although the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price will be treated as a tax preference item for federal alternative minimum tax purposes and may subject Optionee to the alternative minimum tax in the year of exercise.

14.2 Exercise of Nonqualified Stock Option. If the Option does not qualify as an ISO, there may be a regular federal income tax liability upon the exercise of the Option. Optionee will be treated as having received compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price. If Optionee is a current or former employee of the Company, the Company may be required to withhold from Optionee’s compensation or collect from Optionee and pay to the applicable taxing authorities an amount equal to a percentage of this compensation income at the time of exercise.

14.3 Disposition of Shares. The following tax consequences may apply upon disposition of the Shares.

(a) Incentive Stock Options. If the Shares are held for more than twelve (12) months after the date of purchase of the Shares pursuant to the exercise of an ISO and are disposed of more than two (2) years after the Date of Grant, any gain realized on disposition of the Shares will be treated as long term capital gain for federal income tax purposes. If Shares purchased under an ISO are disposed of within the applicable one (1) year or two (2) year period, any gain realized on such disposition will be treated as compensation income (taxable at ordinary income rates in the year of the disposition) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price.

(b) Nonqualified Stock Options. If the Shares are held for more than twelve (12) months after the date of purchase of the Shares pursuant to the exercise of an NQSO, any gain realized on disposition of the Shares will be treated as long term capital gain.

15. GENERAL PROVISIONS.

15.1 Interpretation. Any dispute regarding the interpretation of this Agreement shall be submitted by Optionee or the Company to the Committee for review. The resolution of such a dispute by the Committee shall be final and binding on the Company and Optionee.

15.2 Entire Agreement. The Plan, the Grant Notice and the Exercise Agreement are each incorporated herein by reference. This Agreement, the Grant Notice, the Plan and the Exercise Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior undertakings and agreements with respect to such subject matter.

16. NOTICES. Any and all notices required or permitted to be given to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the following: (i) at the time of personal delivery, if delivery is in person; (ii) at the time an electronic confirmation of receipt is received, if delivery is by email; (iii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or hereafter modified by subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iv) one (1) business day after deposit with an express overnight courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (v) three (3) business days after deposit in the United States mail by certified mail (return receipt requested) for United States deliveries. Any notice for delivery outside the United States will be sent by email, facsimile or by express courier. Any notice not delivered personally or by email will be sent with postage and/or other charges prepaid and properly addressed to Optionee at the last known address or facsimile number on the books of the Company, or at such other address or facsimile number as such other party may designate by one of the indicated means of notice herein to the other parties hereto or, in the case of the Company, to it at its principal place of business. Notices to the Company will be marked “Attention: Chief Financial Officer.” Notices by facsimile shall be machine verified as received.

17. SUCCESSORS AND ASSIGNS. The Company may assign any of its rights under this Agreement including its rights to purchase Shares under the Right of First Refusal. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein, this Agreement shall be binding upon Optionee and Optionee’s heirs, executors, administrators, legal representatives, successors and assigns.

18. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the internal laws of the State of Delaware as such laws are applied to agreements between Delaware residents entered into and to be performed entirely within Delaware. If any provision of this Agreement is determined by a court of law to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable.

19. Further Assurances. The parties agree to execute such further documents and instruments and to take such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement.

20. Titles and Headings. The titles, captions and headings of this Agreement are included for ease of reference only and will be disregarded in interpreting or construing this Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean “sections” and “exhibits” to this Agreement.

21. Counterparts. This Agreement may be executed in any number of counterparts, each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement.

22. Severability. If any provision of this Agreement is determined by any court or arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or provision cannot be so enforced, such provision shall be stricken from this Agreement and the remainder of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never been contained in this Agreement. Notwithstanding the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator of competent jurisdiction shall be binding, then both parties agree to substitute such provision(s) through good faith negotiations.

* * * * *

Attachment: Annex A: Form of Stock Option Exercise Notice and Agreement

Annex A

FORM OF STOCK OPTION EXERCISE NOTICE AND AGREEMENT

STOCK OPTION EXERCISE NOTICE AND AGREEMENT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

*NOTE: You must sign this Notice before submitting it to Avalyn Pharma Inc. (the “Company”) AND, if requested to do so by the Company, you must also sign the signature pages to the Company’s then-current Company Co-Sale Agreement and Company Voting Agreement (as those terms are defined in the Stock Option Agreement) before submitting this Notice to the Company.

Optionee Information: Please provide the following information about yourself (“Optionee”):

Option Information: Please provide this information on the option being exercised (the “Option”):

Exercise Information:

Agreements, Representations and Acknowledgments of Optionee: By signing this Stock Option Exercise Notice and Agreement, Optionee hereby agrees with, and represents to, the Company as follows:

Terms Governing. I acknowledge and agree with the Company that I am acquiring the Purchased Shares by exercise of this Option subject to all other terms and conditions of the Notice of Stock Option Grant and the Stock Option Agreement that govern the Option, including without limitation the terms of the Company’s 2022 Equity Incentive Plan (the “Plan”).

Investment Intent; Securities Law Restrictions. I represent and warrant to the Company that I am acquiring and will hold the Purchased Shares for investment for my account only, and not with a view to, or for resale in connection with, any “distribution” of the Purchased Shares within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). I understand that the Purchased Shares have not been registered under the Securities Act by reason of a specific exemption from such registration requirement and that the Purchased Shares must be held by me indefinitely, unless they are subsequently registered under the Securities Act or I obtain an opinion of counsel (in form and substance satisfactory to the Company and its counsel) that registration is not required. I acknowledge that the Company is under no obligation to register the Purchased Shares under the Securities Act or under any other securities law.

Restrictions on Transfer: Rule 144. I will not sell, transfer or otherwise dispose of the Purchased Shares in violation of the Securities Act, the Securities Exchange Act of 1934, or the rules promulgated thereunder (including Rule 144 under the Securities Act described below (“Rule 144”)) or of any other applicable securities laws. I am aware of Rule 144, which permits limited public resales of securities acquired in a non-public offering, subject to satisfaction of certain conditions, which include (without limitation) that: (a) certain current public information about the Company is available; (b) the resale occurs only after the holding period required by Rule 144 has been met; (c) the sale occurs through an unsolicited “broker’s transaction;” and (d) the amount of securities being sold during any three-month period does not exceed specified limitations. I understand that the conditions for resale set forth in Rule 144 have not been satisfied and that the Company has no plans to satisfy these conditions in the foreseeable future.

Access to Information; Understanding of Risk in Investment. I acknowledge that I have received and had access to such information as I consider necessary or appropriate for deciding whether to invest in the Purchased Shares and that I had an opportunity to ask questions and receive answers from the Company regarding the terms and conditions of the issuance of the Purchased Shares. I am aware that my investment in the Company is a speculative investment that has limited liquidity and is subject to the risk of complete loss. I am able, without impairing my financial condition, to hold the Purchased Shares for an indefinite period and to suffer a complete loss of my investment in the Purchased Shares.

Rights of First Refusal; Repurchase Options; Market Stand-off. I acknowledge that the Purchased Shares remain subject to the Company’s Right of First Refusal, the Company’s Repurchase Option (with respect to unvested Purchased Shares) and the market stand-off covenants (sometimes referred to as the “lock-up”), all in accordance with the applicable Notice of Stock Option Grant and the Stock Option Agreement that govern the Option

Restrictions on Transfer: Bylaws. I acknowledge that the Purchased Shares will be subject to the restrictions on transferability and resale set forth in the Company’s Bylaws as currently in effect.

Form of Ownership. I acknowledge that the Company has encouraged me to consult my own adviser to determine the form of ownership of the Purchased Shares that is appropriate for me. In the event that I choose to transfer my Purchased Shares to a trust, I agree to sign a Stock Transfer Agreement. In the event that I choose to transfer my Purchased Shares to a trust that is not an eligible revocable trust, I also acknowledge that the transfer will be treated as a “disposition” for tax purposes. As a result, the favorable ISO tax treatment will be unavailable and other unfavorable tax consequences may occur.

Investigation of Tax Consequences. I acknowledge that the Company has encouraged me to consult my own adviser to determine the tax consequences of acquiring the Purchased Shares at this time.

Other Tax Matters. I agree that the Company does not have a duty to design or administer the Plan or its other compensation programs in a manner that minimizes my tax liabilities. I will not make any claim against the Company or its Board, officers or employees related to tax liabilities arising from my options or my other compensation. In particular, I acknowledge that my options (including the Option) are exempt from Section 409A of the Internal Revenue Code only if the exercise price per share is at least equal to the fair market value per share of the Common Stock at the time the option was granted by the Board. Since shares of the Common Stock are not traded on an established securities market, the determination of their fair market value was made by the Board and/or by an independent valuation firm retained by the Company. I acknowledge that there is no guarantee in either case that the Internal Revenue Service will agree with the valuation, and I will not make any claim against the Company or its Board of Directors, officers or employees in the event that the Internal Revenue Service asserts that the valuation was too low.

Spouse Consent. I agree to seek the consent of my spouse to the extent required by the Company to enforce the foregoing.

Agreement to Enter into Company Co-Sale Agreement and Company Voting Agreement. Pursuant to the Stock Option Agreement, if requested to do so by the Company, I agree to enter into and execute the then-current Company Co-Sale Agreement and/or the then-current Company Voting Agreement concurrently with my exercise of the Option or at any other time I am requested to do so by the Company. I acknowledge that by entering into the Company Co-Sale Agreement I will be subjecting the Purchased Shares to the rights of first refusal, co-sale rights and all the other provisions of the Company Co-Sale Agreement and that by entering into the Voting Agreement I will be subjected to voting and other obligations and covenants regarding all Company shares I own and all other provisions of the Company Voting Agreement, in addition to the right of first refusal, repurchase option and market stand-off provisions described above.

Tax Withholding. As a condition of exercising this Option, I agree to make adequate provision for foreign, federal, state or other tax withholding obligations, if any, which arise upon the grant, vesting or exercise of this Option, or disposition of the Purchased Shares, whether by withholding, direct payment to the Company, or otherwise.

IMPORTANT NOTE: UNVESTED PURCHASED SHARES ARE SUBJECT TO REPURCHASE BY THE COMPANY. PLEASE CONSULT WITH YOUR TAX ADVISER CONCERNING THE ADVISABILITY OF FILING AN 83(b) ELECTION WITH THE INTERNAL REVENUE SERVICE WHICH MUST BE FILED WITHIN THIRTY (30) DAYS AFTER THE PURCHASE OF SHARES TO BE EFFECTIVE.

A form of Election under Section 83(b) is attached hereto as Exhibit 1 for reference. Unless an 83(b) election is timely filed with the Internal Revenue Service (and, if necessary, the proper state taxing authorities), electing pursuant to Section 83(b) of the Internal Revenue Code (and similar state tax provisions, if applicable) to be taxed currently on any difference between the purchase price of the Unvested Purchased Shares and their fair market value on the date of purchase, there may be a recognition of taxable income (including, where applicable, alternative minimum taxable income) to you, measured by the excess, if any, of the Fair Market Value of the Unvested Purchased Shares at the time they cease to be Unvested Purchased Shares, over the purchase price of the Unvested Purchased Shares.

The undersigned hereby executes and delivers this Stock Option Exercise Notice and Agreement and agrees to be bound by its terms.

Optionee’s Name:

Attachments:

Exhibit 1 – Section 83(b) Election Form

[Signature Page to Stock Option Exercise Notice and Agreement]

EXHIBIT 1

SECTION 83(b) ELECTION

ELECTION UNDER SECTION 83(b) OF THE
INTERNAL REVENUE CODE

The undersigned Taxpayer hereby elects, pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include the excess, if any, of the fair market value of the property described below at the time of transfer over the amount paid for such property, as compensation for services in the calculation of: (1) regular gross income; (2) alternative minimum taxable income; or (3) disqualifying disposition gross income, as the case may be.

THIS ELECTION MUST BE FILED WITH THE INTERNAL REVENUE SERVICE (“IRS”), AT THE OFFICE WHERE TAXPAYER FILES ANNUAL INCOME TAX RETURNS, WITHIN 30 DAYS AFTER THE DATE OF TRANSFER OF THE SHARES, AND MUST ALSO BE FILED WITH TAXPAYER’S INCOME TAX RETURNS FOR THE CALENDAR YEAR. THE ELECTION CANNOT BE REVOKED WITHOUT THE CONSENT OF THE IRS.

STOCK OPTION EXERCISE NOTICE AND AGREEMENT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

*NOTE: You must sign this Notice before submitting it to Avalyn Pharma Inc. (the “Company”) AND, if requested to do so by the Company, you must also sign the signature pages to the Company’s then-current Company Co-Sale Agreement and Company Voting Agreement (as those terms are defined in the Stock Option Agreement) before submitting this Notice to the Company.

Optionee Information: Please provide the following information about yourself (“Optionee”):

Option Information: Please provide this information on the option being exercised (the “Option”):

Exercise Information:

Agreements, Representations and Acknowledgments of Optionee: By signing this Stock Option Exercise Notice and Agreement, Optionee hereby agrees with, and represents to, the Company as follows:

Terms Governing. I acknowledge and agree with the Company that I am acquiring the Purchased Shares by exercise of this Option subject to all other terms and conditions of the Notice of Stock Option Grant and the Stock Option Agreement that govern the Option, including without limitation the terms of the Company’s 2022 Equity Incentive Plan (the “Plan”).

Investment Intent; Securities Law Restrictions. I represent and warrant to the Company that I am acquiring and will hold the Purchased Shares for investment for my account only, and not with a view to, or for resale in connection with, any “distribution” of the Purchased Shares within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). I understand that the Purchased Shares have not been registered under the Securities Act by reason of a specific exemption from such registration requirement and that the Purchased Shares must be held by me indefinitely, unless they are subsequently registered under the Securities Act or I obtain an opinion of counsel (in form and substance satisfactory to the Company and its counsel) that registration is not required. I acknowledge that the Company is under no obligation to register the Purchased Shares under the Securities Act or under any other securities law.

Restrictions on Transfer: Rule 144. I will not sell, transfer or otherwise dispose of the Purchased Shares in violation of the Securities Act, the Securities Exchange Act of 1934, or the rules promulgated thereunder (including Rule 144 under the Securities Act described below (“Rule 144”)) or of any other applicable securities laws. I am aware of Rule 144, which permits limited public resales of securities acquired in a non-public offering, subject to satisfaction of certain conditions, which include (without limitation) that: (a) certain current public information about the Company is available; (b) the resale occurs only after the holding period required by Rule 144 has been met; (c) the sale occurs through an unsolicited “broker’s transaction”; and (d) the amount of securities being sold during any three-month period does not exceed specified limitations. I understand that the conditions for resale set forth in Rule 144 have not been satisfied and that the Company has no plans to satisfy these conditions in the foreseeable future.

Access to Information; Understanding of Risk in Investment. I acknowledge that I have received and had access to such information as I consider necessary or appropriate for deciding whether to invest in the Purchased Shares and that I had an opportunity to ask questions and receive answers from the Company regarding the terms and conditions of the issuance of the Purchased Shares. I am aware that my investment in the Company is a speculative investment that has limited liquidity and is subject to the risk of complete loss. I am able, without impairing my financial condition, to hold the Purchased Shares for an indefinite period and to suffer a complete loss of my investment in the Purchased Shares.

Rights of First Refusal; Market Stand-off. I acknowledge that the Purchased Shares remain subject to the Company’s Right of First Refusal and the market stand-off covenants (sometimes referred to as the “lock-up”), all in accordance with the applicable Notice of Stock Option Grant and the Stock Option Agreement that govern the Option.

Restrictions on Transfer: Bylaws. I acknowledge that the Purchased Shares will be subject to the restrictions on transferability and resale set forth in the Company’s Bylaws as currently in effect.

Form of Ownership. I acknowledge that the Company has encouraged me to consult my own adviser to determine the form of ownership of the Purchased Shares that is appropriate for me. In the event that I choose to transfer my Purchased Shares to a trust, I agree to sign a Stock Transfer Agreement. In the event that I choose to transfer my Purchased Shares to a trust that is not an eligible revocable trust, I also acknowledge that the transfer will be treated as a “disposition” for tax purposes. As a result, the favorable ISO tax treatment will be unavailable and other unfavorable tax consequences may occur.

Investigation of Tax Consequences. I acknowledge that the Company has encouraged me to consult my own adviser to determine the tax consequences of acquiring the Purchased Shares at this time.

Other Tax Matters. I agree that the Company does not have a duty to design or administer the Plan or its other compensation programs in a manner that minimizes my tax liabilities. I will not make any claim against the Company or its Board, officers or employees related to tax liabilities arising from my options or my other compensation. In particular, I acknowledge that my options (including the Option) are exempt

from section 409A of the Internal Revenue Code only if the exercise price per share is at least equal to the fair market value per share of the Common Stock at the time the option was granted by the Board. Since shares of the Common Stock are not traded on an established securities market, the determination of their fair market value was made by the Board and/or by an independent valuation firm retained by the Company. I acknowledge that there is no guarantee in either case that the Internal Revenue Service will agree with the valuation, and I will not make any claim against the Company or its Board, officers or employees in the event that the Internal Revenue Service asserts that the valuation was too low.

Spouse Consent. I agree to seek the consent of my spouse to the extent required by the Company to enforce the foregoing.

Agreement to Enter into Company Co-Sale Agreement and Company Voting Agreement. Pursuant to the Stock Option Agreement, if requested to do so by the Company, I agree to enter into and execute the then-current Company Co-Sale Agreement and/or the then-current Company Voting Agreement concurrently with my exercise of the Option or at any other time I am requested to do so by the Company. I acknowledge that by entering into the Company Co-Sale Agreement I will be subjecting the Purchased Shares to the rights of first refusal, co-sale rights and all the other provisions of the Company Co-Sale Agreement and that by entering into the Voting Agreement I will be subjected to voting and other obligations and covenants regarding all Company shares I own and all other provisions of the Company Voting Agreement, in addition to the right of first refusal, repurchase option and market stand-off provisions described above.

Tax Withholding. As a condition of exercising this Option, I agree to make adequate provision for foreign, federal, state or other tax withholding obligations, if any, which arise upon the grant, vesting or exercise of this Option, or disposition of the Purchased Shares, whether by withholding, direct payment to the Company, or otherwise.

The undersigned hereby executes and delivers this Stock Option Exercise Notice and Agreement and agrees to be bound by its terms.

Optionee’s Name:

[Signature Page to Stock Option Exercise Notice and Agreement]

OPTION GRANT NO.

GLOBAL NOTICE OF STOCK OPTION GRANT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

The Optionee named below (“Optionee”) has been granted an option (this “Option”) to purchase shares of Common Stock, USD $0.001 par value per share (the “Common Stock”), of Avalyn Pharma Inc., a Delaware corporation (the “Company”), pursuant to the Company’s 2022 Equity Incentive Plan, as amended from time to time (the “Plan”) on the terms, and subject to the conditions, described below and in the Global Stock Option Agreement attached hereto as Exhibit A, including its annexes (in the case of Annex B, to the extent applicable to the Optionee from time to time as determined by the Company in its sole discretion) (the “Stock Option Agreement”).

General; Agreement: By their signatures below, Optionee and the Company agree that this Option is granted under and governed by this Global Notice of Stock Option Grant (this “Grant Notice”) and by the provisions of the Plan and the Stock Option Agreement (including its annexes). The Plan and the Stock Option Agreement (including its annexes) are incorporated herein by reference. Capitalized terms used but not defined herein shall have the meanings given to them in the Plan or in the Stock Option Agreement (including its annexes), as applicable. By signing below, Optionee acknowledges receipt of a copy of this Grant Notice, the Plan and the Stock Option Agreement (including its annexes) and represents that Optionee has carefully read and is familiar with their provisions, and hereby accepts the Option subject to all of their respective terms and conditions. Non-U.S. taxpayers should consult with their own tax advisor generally about the taxation of the Option. The Option grant shall be subject to any additional or replacement terms and conditions set forth in Annex B attached to the Stock Option Agreement, which is attached to and made a part of this Notice. Optionee acknowledges that there may be adverse tax consequences upon grant or exercise of the Option or disposition of the Shares and that Optionee should consult a tax adviser prior to such exercise or disposition. Optionee agrees and acknowledges that the Vesting Schedule may change prospectively in the event that Optionee’s service status changes between full and part time status in accordance with Company policies relating to work schedules and vesting of equity awards.

Execution and Delivery: This Grant Notice may be executed and delivered electronically whether via the Company’s intranet or the Internet site of a third party or via email or any other means of electronic delivery specified by the Company. By Optionee’s acceptance hereof (whether written, electronic or otherwise), Optionee agrees, to the fullest extent permitted by law, that in lieu of receiving documents in paper format, Optionee accepts the electronic delivery of any documents that the Company (or any third party the Company may designate), may deliver in connection with this grant (including the Plan, this Grant Notice, the Stock Option Agreement, the information described in Rules 701(e)(2), (3), (4) and (5) under the Securities Act (the “701 Disclosures”), account statements, or other communications or information) whether via the Company’s intranet or the Internet site of such third party or via email or such other means of electronic delivery specified by the Company.

Avalyn Pharma Inc.

Attachment: Exhibit A: Global Stock Option Agreement

Exhibit A

Global Stock Option Agreement

Exhibit A

GLOBAL STOCK OPTION AGREEMENT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

This Global Stock Option Agreement (this “Agreement”) is made and entered into as of the date of grant (the “Date of Grant”) set forth on the Global Notice of Stock Option Grant attached as the facing page to this Agreement (the “Grant Notice”) by and between Avalyn Pharma Inc., a Delaware corporation (the “Company”), and the optionee named on the Grant Notice (the “Optionee”). Capitalized terms not defined in this Agreement shall have the meaning ascribed to them in the Company’s 2022 Equity Incentive Plan, as amended from time to time (the “Plan”), or in the Grant Notice, as applicable. This Agreement shall be subject to any additional or replacement terms and conditions set forth in Annex B, to the extent applicable to Optionee from time to time.

1. Grant of Option. The Company hereby grants to Optionee an option (this “Option”) to purchase up to the total number of shares of Common Stock of the Company, USD $0.001 par value per share (the “Common Stock”), set forth in the Grant Notice as the Shares (the “Shares”) at the Exercise Price Per Share set forth in the Grant Notice (the “Exercise Price”), subject to all of the terms and conditions of the Grant Notice, this Agreement and the Plan. If designated as an Incentive Stock Option for U.S. tax purposes in the Grant Notice, this Option is intended to qualify as an incentive stock option (the “ISO”) within the meaning of Section 422 of the U.S. Internal Revenue Code of 1986, as amended (the “Code”).

2. Exercise Period.

3. Termination.

4. Manner of Exercise.

(a) by cancellation of indebtedness of the Company owed to Optionee;

(b) by surrender of shares of the Company that are free and clear of all security interests, pledges, liens, claims or encumbrances and: (i) for which the Company has received “full payment of the purchase price” within the meaning of U.S. Securities and Exchange Commission (“SEC”) Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been fully paid with respect to such shares) or (ii) that were obtained by Optionee in the public market;

(c) by participating in a formal cashless exercise program implemented by the Committee in connection with the Plan;

(d) provided that a public market for the Common Stock exists and subject to compliance with applicable law, by exercising as set forth below, through a “same day sale” commitment from Optionee and a broker-dealer whereby Optionee irrevocably elects to exercise this Option and to sell a portion of the Shares so purchased sufficient to pay the total Exercise Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or

(e) by any combination of the foregoing or any other method of payment approved by the Committee that constitutes legal consideration for the issuance of Shares.

For avoidance of uncertainty: ACH transfers that have been successfully received by the Company into its bank account designated for receipt of such transfers shall be deemed to have been received for all purposes of this Option as of the date on which such transfers were initiated from the Optionee’s account and made irrevocable by Optionee.

5. Compliance with Laws and Regulations.

(a) Optionee is not a U.S. Person as defined in Rule 902(k) of Regulation S under the Securities Act. The offer and sale of the Shares to such Optionee was made in an offshore transaction (as defined in Rule 902(h) of Regulation S), no directed selling efforts (as defined in Rule 902(c) of Regulation S) were made in the United States, and the Optionee is not acquiring the Shares for the account or benefit of any U.S. Person;

(b) Optionee will not, during the one-year restriction period applicable to the Shares included in the legend set forth in Section 13.3(b) below (the “Restricted Period”) and on any certificate representing the Shares, offer or sell any of the foregoing securities (or create or maintain any derivative position equivalent thereto) in the United States, to or for the account or benefit of a U.S. Person or other than in accordance with Regulation S; and

(c) Optionee will, after the expiration of the applicable Restricted Period, offer, sell, pledge or otherwise transfer the Shares (or create or maintain any derivative position equivalent thereto) only pursuant to registration under the Securities Act or any available exemption therefrom and, in any case, in accordance with applicable state securities laws.

(d) Optionee acknowledges and agrees that the Company shall not register the transfer of the Shares in violation of this Agreement, the Plan or any of the restrictions set forth herein or therein.

6. Nontransferability of Option. This Option may not be transferred in any manner other than by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to a testamentary trust in which the options are to be passed to beneficiaries upon the death of the trustor (settlor) or a revocable trust, or by gift to “immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may be exercised during the lifetime of Optionee only by Optionee or in the event of Optionee’s incapacity, by Optionee’s legal representative. The terms of this Option shall be binding upon the executors, administrators, successors and assigns of Optionee.

7. RESTRICTIONS ON TRANSFER.

(a) Optionee shall have notified the Company of the proposed disposition and provided a written summary of the terms and conditions of the proposed disposition;

(b) Optionee shall have complied with all requirements of this Agreement and the Bylaws applicable to the disposition of the Shares;

(c) Optionee shall have provided the Company with written assurances, in form and substance satisfactory to counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or under any applicable laws or (ii) all appropriate actions necessary for compliance with the registration requirements of the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) or applicable laws have been taken; and

(d) Optionee shall have provided the Company with written assurances, in form and substance satisfactory to the Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares pursuant to the provisions of the regulations promulgated under Section 25102(o), Rule 701 or under any other applicable securities laws or adversely affect the Company’s ability to rely on the exemption(s) from registration under the Securities Act or under any other applicable laws for the grant of the Option, the issuance of Shares thereunder or any other issuance of securities under the Plan.

8. MARKET STANDOFF AGREEMENT. Optionee agrees that, subject to any early release provisions that apply pro rata to stockholders of the Company according to their holdings of Common Stock (determined on an as-converted into Common Stock basis), Optionee will not, for a period of up to one hundred eighty (180) days (plus up to an additional thirty five (35) days to the extent reasonably requested by the Company or such underwriter(s) to accommodate regulatory restrictions on the publication or other distribution of research reports or earnings releases by the Company, including NASD and NYSE rules) following the effective date of the registration statement filed with the SEC relating to the initial underwritten sale of Common Stock of the Company to the public under the Securities Act (the “IPO”), directly or indirectly sell, offer to sell, grant any option for the sale of, or otherwise dispose of any Common Stock or securities convertible into Common Stock, except for: (i) transfers of Shares permitted under Section 9.6 hereof so long as such transferee furnishes to the Company and the managing underwriter their written consent to be bound by this Section 8 as a condition precedent to such transfer; and (ii) sales of any

securities to be included in the registration statement for the IPO. For the avoidance of doubt, the provisions of this Section shall only apply to the IPO. The restricted period shall in any event terminate two (2) years after the closing date of the IPO. In order to enforce the foregoing covenant, the Company shall have the right to place restrictive legends on the certificates representing the Shares subject to this Section and to impose stop transfer instructions with respect to the Shares until the end of such period. Optionee further agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing restrictions on transfer. For the avoidance of doubt, the foregoing provisions of this Section shall not apply to any registration of securities of the Company (a) under an employee benefit plan or (b) in a merger, consolidation, business combination or similar transaction.

9. COMPANY’S RIGHT OF FIRST REFUSAL. Subject to the restrictions on transfer set forth in the Bylaws, before any Shares held by Optionee or any transferee of such Shares (either sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its assignee(s) will have a right of first refusal to purchase the Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First Refusal”).

10. RIGHTS AS A STOCKHOLDER. Optionee shall not have any of the rights of a stockholder with respect to any Shares unless and until such Shares are issued to Optionee. Subject to the terms and conditions of this Agreement, Optionee will have all of the rights of a stockholder of the Company with respect to the Shares from and after the date that Shares are issued to Optionee pursuant to, and in accordance with, the terms of the Exercise Agreement until such time as Optionee disposes of the Shares or the Company and/or its assignee(s) exercise(s) the Right of First Refusal. Upon an exercise of the Right of First Refusal, Optionee will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to receive payment for the Shares so purchased in accordance with the provisions of this Agreement, and Optionee will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation.

11. ESCROW. As security for Optionee’s faithful performance of this Agreement, Optionee agrees, immediately upon receipt of the stock certificate(s) evidencing the Shares to deliver such certificate(s) to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is hereby appointed to hold such certificate(s) in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Optionee and the Company agree that Escrow Holder will not be liable to any party to this Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the duties of Escrow Holder under this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to the transactions contemplated by this Agreement and will not be liable for any act or omission taken by Escrow Holder in good faith reliance on such documents, the advice of counsel or a court order. The Shares will be released from escrow upon termination of the Right of First Refusal.

12. Company Co-Sale Agreement and Voting Agreement. As a material inducement and consideration for the Company to enter into this Agreement, Optionee hereby agrees that if, the Company requests Optionee to enter into and become a party to (a) the Company Co-Sale Agreement (and to subject the Shares to the rights of first refusal held by the Company and other Company investors thereunder and the co-sale rights of other investors thereunder) and/or (b) the Company Voting Agreement (pursuant to which Optionee would agree to vote all shares of Company stock held by Optionee for the election of directors and in favor of certain material transactions (such as mergers or sales of the Company), then Optionee will enter into such agreements and execute and deliver signature pages thereto (as requested by the Company) in such capacities as the Company requests, at the time of exercising this Option and as a condition to such exercise or at any later time.

13. RESTRICTIVE LEGENDS AND STOP-TRANSFER ORDERS.

13.1.1 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON RESALE AND TRANSFER, INCLUDING THE RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S), AS SET FORTH IN A STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH SALE AND TRANSFER RESTRICTIONS, INCLUDING THE RIGHT OF FIRST REFUSAL, ARE BINDING ON TRANSFEREES OF THESE SHARES.

13.1.2 THE SHARES EVIDENCED HEREBY ARE SUBJECT TO A RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE CORPORATION AND/OR ITS ASSIGNEE(S), AS PROVIDED IN THE BYLAWS OF THE CORPORATION, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE CORPORATION.

13.1.3 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A MARKET STANDOFF RESTRICTION, AS SET FORTH IN A CERTAIN STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE EFFECTIVE DATE OF CERTAIN PUBLIC OFFERINGS OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES.

Optionee agrees that if Optionee becomes a party to (i) the Company Co-Sale Agreement or (ii) (A) the Company’s Amended and Restated Voting Agreement dated as of April 24, 2020 among the Company and certain stockholders of the Company, as such may be amended and/or restated from time to time, and/or (B) any other voting agreement that is a successor to or replacement of such agreement (collectively, the “Company Voting Agreement”), then Optionee agrees that the stock certificate(s) evidencing the Shares shall, in addition, bear any legends required under the Company Co-Sale Agreement and/or the Company Voting Agreement, as applicable.

(a) THE SHARES REPRESENTED BY THISCERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”) WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION, AND THE COMPANY DOES NOT INTEND TO REGISTER THEM.

(b) PRIOR TO A DATE THAT IS ONE YEAR STARTING FROM THE DATE OF SALE OF THE STOCK, THE SHARES MAY NOT BE OFFERED OR SOLD (INCLUDING OPENING A SHORT POSITION IN SUCH SECURITIES) IN THE UNITED STATES OR TO U.S. PERSONS AS DEFINED BY RULE 902(K) ADOPTED UNDER THE ACT, OTHER THAN TO DISTRIBUTORS, UNLESS THE SHARES ARE REGISTERED UNDER THE ACT OR AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE ACT IS AVAILABLE. HOLDERS OF SHARES PRIOR TO ONE YEAR STARTING FROM THE DATE OF SALE OF THE STOCK MAY RESELL SUCH SECURITIES ONLY PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE ACT OR OTHERWISE IN ACCORDANCE WITH THE PROVISIONS OF REGULATION S OF THE ACT, OR IN TRANSACTIONS EFFECTED OUTSIDE OF THE UNITED STATES, PROVIDED THEY DO NOT SOLICIT (AND NO ONE ACTING ON THEIR BEHALF SOLICITS) PARTICIPANTS IN THE UNITED STATES OR OTHERWISE ENGAGE(S) IN SELLING EFFORTS IN THE UNITED STATES AND PROVIDED THAT HEDGING TRANSACTIONS INVOLVING THESE SECURITIES MAY NOT BE CONDUCTED UNLESS IN COMPLIANCE WITH THE ACT.

(c) A HOLDER OF THE SECURITIES WHO IS A DISTRIBUTOR, DEALER, SUB-UNDERWRITER OR OTHER SECURITIES PROFESSIONAL, IN ADDITION, CANNOT, PRIOR TO ONE YEAR STARTING FROM THE DATE OF SALE OF THE STOCK, RESELL THE SECURITIES TO A U.S. PERSON AS DEFINED BY RULE 902(K) OF REGULATION S UNLESS THE SECURITIES ARE REGISTERED UNDER THE ACT OR AN EXEMPTION FROM REGISTRATION UNDER THE ACT IS AVAILABLE.

14. TAX CONSEQUENCES. OPTIONEE SHOULD CONSULT A TAX ADVISER APPROPRIATELY QUALIFIED IN THE COUNTRY OR COUNTRIES IN WHICH THE OPTIONEE RESIDES OR IS SUBJECT TO TAXATION BEFORE EXERCISING THE OPTION OR DISPOSING OF THE SHARES.

15. GENERAL PROVISIONS.

16. NOTICES. Any and all notices required or permitted to be given to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the following: (i) at the time of personal delivery, if delivery is in person; (ii) at the time an electronic confirmation of receipt is received, if delivery is by email; (iii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or hereafter modified by subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iv) one (1) business day after deposit with an express overnight courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (v) three (3) business days after deposit in the United States mail by certified mail (return receipt requested) for United States deliveries. Any notice for delivery outside the United States will be sent by email, facsimile or by express courier. Any notice not delivered personally or by email will be sent with postage and/or other charges prepaid and properly addressed to Optionee at the last known address or facsimile number on the books of the Company, or at such other address or facsimile number as such other party may designate by one of the indicated means of notice herein to the

other parties hereto or, in the case of the Company, to it at its principal place of business. Notices to the Company will be marked “Attention: Chief Financial Officer.” Notices by facsimile shall be machine verified as received.

17. SUCCESSORS AND ASSIGNS. The Company may assign any of its rights under this Agreement including its rights to purchase Shares under the Right of First Refusal. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein, this Agreement shall be binding upon Optionee and Optionee’s heirs, executors, administrators, legal representatives, successors and assigns.

18. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the internal laws of the State of Delaware as such laws are applied to agreements between Delaware residents entered into and to be performed entirely within Delaware. If any provision of this Agreement is determined by a court of law to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable.

19. Further Assurances. The parties agree to execute such further documents and instruments and to take such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement.

20. Titles and Headings. The titles, captions and headings of this Agreement are included for ease of reference only and will be disregarded in interpreting or construing this Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean “sections” and “exhibits” to this Agreement.

21. Counterparts. This Agreement may be executed electronically and in any number of counterparts, each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement.

22. Severability. If any provision of this Agreement is determined by any court or arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or provision cannot be so enforced, such provision shall be stricken from this Agreement and the remainder of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never been contained in this Agreement. Notwithstanding the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator of competent jurisdiction shall be binding, then both parties agree to substitute such provision(s) through good faith negotiations.

* * * * *

Attachments:

Annex A: Form of Global Stock Option Exercise Notice and Agreement

Annex B: Terms and Conditions for Non-U.S. Optionees

Annex A

FORM OF GLOBAL STOCK OPTION EXERCISE NOTICE AND AGREEMENT

ANNEX B

TERMS AND CONDITIONS

FOR NON-U.S. OPTIONEES

Terms and Conditions

This Annex B includes additional terms and conditions that govern the Option granted to Optionee under the Plan if Optionee resides and/or works outside of the United States. Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Plan and/or the Stock Option Agreement to which this Annex B is attached.

If Optionee is a citizen or resident of a country other than the one in which he or she is currently working and/or residing, transfers to another country after the Date of Grant, is a consultant, changes employment status to a consultant position or is considered a resident of another country for local law purposes, the Company shall, in its discretion, determine the extent to which the special terms and conditions contained herein shall be applicable to Optionee. References to Optionee’s Employer shall include any entity that engages Optionee’s services.

In accepting this Option, Optionee acknowledges, understands and agrees to the following:

1. Data Privacy Information and Consent. The Company is located at 701 Pike St #1500, Seattle, WA, 98101, United States, and grants awards to employees of the Company and its Parent and Subsidiaries, at the Company’s sole discretion. If Optionee would like to participate in the Plan, please review the following information about the Company’s data processing practices.

(a) To the satisfaction and on the direction of the Committee, all operations of the Plan and this Option (at the time of its grant and as necessary thereafter) shall include or be supported by appropriate agreements, notifications and arrangements in respect of Data and its use and processing under the Plan, in order to secure (a) the reasonable freedom of the Employer, the Company and any Parent or Subsidiary, as appropriate, to operate the Plan and for connected purposes, and (b) compliance with the data-protection requirements applicable from time to time, including, if applicable, and without limitation, Regulation EU 2016/679 of the European Parliament and of the Council of 27 April 2016.

(b) Optionee has certain rights under data protection legislation as summarized below:

(c) Optionee’s rights will in each case be subject to the restrictions set out in applicable data protection laws. Further information on these rights, and the circumstances in which they may arise in connection with the Company’s processing of Optionee’s personal data, can be obtained by contacting Optionee’s local human resources representative. If Optionee wants to review, verify, correct or request erasure of Optionee’s personal information, object to the processing of Optionee’s personal data, or request that the Company transfer a copy of Optionee’s personal information to another party, please contact Optionee’s local human resources representative.

(d) The Company agrees to ensure that Data transferred outside the European Economic Area will be done pursuant to a lawful transfer mechanism (for example, European Commission approved model contract clauses).

(e) The Company will separately provide the Optionee with information in a data privacy notice on the collection, processing and transfer of their personal data, including the grounds for processing.

(f) If Optionee has any grievance, issue or problem in respect of the handling or processing of Optionee’s personal data in any way, Optionee has the right to lodge a complaint to the competent data protection authority. The list of national data protection authorities for each country in the European Union and their contact details are available at: https://ec.europa.eu/justice/article-29/structure/data-protection-authorities/index_en.htm.

2. Insider Trading Restrictions/Market Abuse Laws. Optionee acknowledges that, if and when the Shares are publicly listed on any stock exchange, depending on his or her country, Optionee may be subject to insider trading restrictions and/or market abuse laws in applicable jurisdictions, which may affect his or her ability to directly or indirectly, accept, acquire, sell or attempt to sell or otherwise dispose of Shares or rights to the Shares, or rights linked to the value of Shares during such times as Optionee is considered to have “inside information” regarding the Company (as defined by the laws and/or regulations in applicable jurisdictions or Optionee’s country). Local insider trading laws and regulations may prohibit the cancellation or amendment of orders placed by Optionee before possessing the inside information. Furthermore, Optionee may be prohibited from (i) disclosing inside information to any third party, including fellow employees (other than on a “need to know” basis) and (ii) “tipping” third parties or causing them to otherwise buy or sell securities. Any restrictions under these laws or regulations are separate from and in addition to any restrictions that may be imposed under any applicable Company insider trading policy. Optionee acknowledges that it is Optionee’s responsibility to comply with any applicable restrictions, and Optionee is advised to speak to his or her personal advisor on this matter.

3. Language. Optionee acknowledges that he or she is sufficiently proficient in English to understand the terms and conditions of this Agreement and confirms having read and understood the documents relating to the Plan, including this Agreement and all its terms and conditions, all of which have been provided to Optionee exclusively in the English language (unless otherwise specified in the country-specific provisions set forth below that are applicable to Optionee). Optionee accepts the Plan, this Agreement and their applicable terms and conditions and does not require their translation into any language other than English. Furthermore, if Optionee has received this Agreement, or any other document related to the Option and/or the Plan translated into a language other than English and the meaning of the translated version differs from that of the English version, the English version will control.

4. Foreign Asset/Account Reporting Requirements. Optionee acknowledges that there may be certain foreign asset and/or account reporting requirements which may affect Optionee’s ability to acquire or hold Shares acquired under the Plan or cash received from participating in the Plan in a brokerage account outside his or her country. Optionee may also be required to repatriate sale proceeds or other funds received as a result of participating in the Plan to his or her country through a designated bank or broker within a certain time after receipt. It is Optionee’s responsibility to be compliant with such regulations and Optionee should speak with his or her personal advisor on this matter.

5. Extraordinary Compensation. The value of the option is an extraordinary item of compensation outside the scope of Optionee’s employment contract, if any, and is not to be considered part of his or her normal or expected compensation for purposes of calculating severance, resignation, redundancy, end of service payments, bonuses, long-service awards, pension or retirement benefits or similar payments. Optionee acknowledges that the right to be granted options and the right to exercise the option and to continue vesting or to receive further grants of options will terminate effective as of the date upon which Optionee receives notice of termination, regardless of when the termination is effective.

6. Participation Ceases When Employment Ceases. Except in the case of an approved leave of absence (as set forth more fully in the Plan), Optionee understands that he/she shall have terminated employment as of the date he or she ceases to provide services (regardless of whether the termination is in breach of local employment laws or is later found to be invalid) and employment shall not be extended by any notice period or garden leave mandated by local law, provided however, that a change in status from an employee to a consultant or advisor shall not terminate the Optionee’s continuous service, unless determined by the Committee, in its discretion.

7. Additional Acknowledgments and Agreements. In accepting this Option, Optionee also acknowledges, understands and agrees that:

Notifications

This Annex B also includes information regarding exchange controls and certain other issues of which Optionee should be aware with respect to Optionee’s participation in the Plan. The information is provided solely for the convenience of Optionee and is based on the laws in effect in the respective countries as of the dates set forth below. Such laws are often complex and change frequently. As a result, the Company strongly recommends that Optionee not rely on the information noted herein as the only source of information relating to the consequences of Optionee’s participation in the Plan because the information may be out of date by the time Optionee vests in or exercises this Option or sells any exercised Shares.

Optionee is responsible for complying with all applicable tax, foreign asset reporting and/or exchange control rules that may apply in connection with participation in the Plan and/or the transfer of proceeds acquired thereunder. Prior to exercise of the Options or transfer of funds from or into Optionee’s country, Optionee should consult the local bank and/or Optionee’s exchange control advisor, as interpretations of the applicable regulations may vary; additionally, exchange control rules and regulations are subject to change without notice.

In addition, the information contained in this Annex B is general in nature and may not apply to Optionee’s particular situation, and the Company is not in a position to assure Optionee of any particular result. Accordingly, Optionee is advised to seek appropriate professional advice as to how the applicable laws in his or her country may apply to his or her situation.

Finally, Optionee understands that if he or she is a citizen or resident of a country other than the one in which he or she is currently residing and/or working, transfers to another country after the Date of Grant, or is considered a resident of another country for local law purposes, the notifications contained herein may not be applicable to Optionee in the same manner.

UNITED KINGDOM (AS OF JANUARY 2022)

Terms and Conditions

Tax Obligations. The following provision supplements Sections 4.4 and 14 of this Agreement:

Tax-Related Items shall include Primary and to the extent legally possible secondary class 1 National Insurance Contributions. Optionee agrees that the Company or Optionee’s Employer may calculate the Tax-Related Items to be withheld and accounted for by reference to the maximum applicable rates, without prejudice to any right Optionee may have to recover any overpayment from relevant U.K. tax authorities. Optionee understands and agrees that if payment or withholding of any income tax liability arising in connection with Optionee’s participation in the Plan is not made by Optionee to Optionee’s Employer within 90 days of the event giving rise to such income tax liability or such other period specified in Section 222(1)I of the U.K. Income Tax (Earnings and Pensions) Act 2003 (the “Due Date”), that the amount of any uncollected income tax will constitute a loan owed by Optionee to Optionee’s Employer, effective on the Due Date. Optionee understands and agrees that the loan will bear interest at the then-current official rate of Her Majesty’s Revenue and Customs, it will be immediately due and repayable by Optionee, and the Company and/or Optionee’s Employer may recover it at any time thereafter by any of the means referred to in the Plan and/or this Agreement.

Notwithstanding the foregoing, Optionee understands and agrees that if Optionee is a director or an executive officer of the Company (within the meaning of such terms for purposes of Section 13(k) of the U.S. Securities and Exchange Act of 1934, as amended), Optionee will not be eligible for such a loan to cover the income tax liability. Optionee further understands that, in the event that he or she is such a director or executive officer and the income tax is not collected from or paid by Optionee by the Due Date, the amount of any uncollected income tax will constitute an additional benefit to Optionee on which additional income tax and National Insurance Contributions will be payable. Optionee understands and agree that he or she is responsible for reporting and paying any income tax due on this additional benefit directly to Her Majesty’s Revenue and Customs under the self-assessment regime and for reimbursing the Company or Optionee’s Employer (as appropriate) for the value of any primary and (to the extent legally possible) secondary class 1 National Insurance Contributions due on this additional benefit which the Company or Optionee’s Employer may recover from Optionee by any of the means referred to in the Plan and/or this Agreement.

At the discretion of the Company, the Option cannot be settled until Optionee has entered into an election with the Company (or Optionee’s Employer) (as appropriate) in a form approved by the Company and Her Majesty’s Revenue & Customs:

(a) to treat any liability of the Company and/or the Employer for employer’s National Insurance Contributions arising in respect of the granting, exercise, settlement of or other dealing in the Option, or the acquisition of Shares on the settlement of the Option, as transferred to and met by Optionee pursuant to Paragraph 3B(1) of Schedule 1 of the Social Security Contributions and Benefits Act 1992 (“Joint Election to Transfer UK Employer’s National Insurance Contributions”); and/or

(b) to treat the Shares acquired at Option exercise and their market value as if they were not restricted securities for the relevant income tax and National Insurance Contribution purposes pursuant section 431(1) of the Income Tax (Earnings and Pensions Act) 2003 (a “Joint Election under s431”).

OPTION GRANT NO. ___

NOTICE OF STOCK OPTION GRANT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

The Optionee named below (“Optionee”) has been granted an option (this “Option”) to purchase shares of Common Stock, $0.001 par value per share (the “Common Stock”), of Avalyn Pharma Inc., a Delaware corporation (the “Company”), pursuant to the Company’s 2022 Equity Incentive Plan (the “Plan”) on the terms, and subject to the conditions, described below and in the Stock Option Agreement attached hereto as Exhibit A, including its annexes (the “Stock Option Agreement”).

General; Agreement: By their signatures below, Optionee and the Company agree that this Option is granted under and governed by this Notice of Stock Option Grant (this “Grant Notice”) and by the provisions of the Plan and the Stock Option Agreement. The Plan and the Stock Option Agreement are incorporated herein by reference. Capitalized terms used but not defined herein shall have the meanings given to them in the Plan or in the Stock Option Agreement, as applicable. By signing below, Optionee acknowledges receipt of a copy of this Grant Notice, the Plan and the Stock Option Agreement, represents that Optionee has carefully read and is familiar with their provisions, and hereby accepts the Option subject to all of their respective terms and conditions. Optionee acknowledges that there may be adverse tax consequences upon exercise of the Option or disposition of the Shares and that Optionee should consult a tax adviser prior to such exercise or disposition. Optionee agrees and acknowledges that the Vesting Schedule may change prospectively in the event that Optionee’s service status changes between full and part time status in accordance with Company policies relating to work schedules and vesting of equity awards.

Execution and Delivery: This Grant Notice may be executed and delivered electronically whether via the Company’s intranet or the Internet site of a third party or via email or any other means of electronic delivery specified by the Company. By Optionee’s acceptance hereof (whether written, electronic or otherwise), Optionee agrees, to the fullest extent permitted by law, that in lieu of receiving documents in paper format, Optionee accepts the electronic delivery of any documents that the Company (or any third party the Company may designate), may deliver in connection with this grant (including the Plan, this Grant Notice, the Stock Option Agreement, the information described in Rules 701(e)(2), (3), (4) and (5) under the Securities Act (the “701 Disclosures”), account statements, or other communications or information) whether via the Company’s intranet or the Internet site of such third party or via email or such other means of electronic delivery specified by the Company.

AVALYN PHARMA INC.

Attachment: Exhibit A – Stock Option Agreement

Exhibit A

Stock Option Agreement

STOCK OPTION AGREEMENT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

This Stock Option Agreement (this “Agreement”) is made and entered into as of the date of grant (the “Date of Grant”) set forth on the Notice of Stock Option Grant attached as the facing page to this Agreement (the “Grant Notice”) by and between Avalyn Pharma Inc., a Delaware corporation (the “Company”), and the optionee named on the Grant Notice (“Optionee”). Capitalized terms not defined in this Agreement shall have the meaning ascribed to them in the Company’s 2022 Equity Incentive Plan (the “Plan”) or in the Grant Notice, as applicable.

1. Grant of Option. The Company hereby grants to Optionee an option (this “Option”) to purchase up to the total number of shares of Common Stock of the Company, $0.001 par value per share (the “Common Stock”), set forth in the Grant Notice as the Shares (the “Shares”) at the Exercise Price Per Share set forth in the Grant Notice (the “Exercise Price”), subject to all of the terms and conditions of the Grant Notice, this Agreement and the Plan. If designated as an Incentive Stock Option in the Grant Notice, this Option is intended to qualify as an incentive stock option (the “ISO”) within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”).

2. Exercise Period.

3. Termination.

4. Manner of Exercise.

(a) by cancellation of indebtedness of the Company owed to Optionee;

(b) by surrender of shares of the Company that are free and clear of all security interests, pledges, liens, claims or encumbrances and: (i) for which the Company has received “full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been fully paid with respect to such shares) or (ii) that were obtained by Optionee in the public market;

(c) by participating in a formal cashless exercise program implemented by the Committee in connection with the Plan;

(d) provided that a public market for the Common Stock exists and subject to compliance with applicable law, by exercising as set forth below, through a “same day sale” commitment from Optionee and a broker-dealer whereby Optionee irrevocably elects to exercise this Option and to sell a portion of the Shares so purchased sufficient to pay the total Exercise Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or

(e) by any combination of the foregoing or any other method of payment approved by the Committee that constitutes legal consideration for the issuance of Shares.

For avoidance of uncertainty: ACH transfers that have been received by the Company into its bank account designated for receipt of such transfers shall be deemed to have been received for all purposes of this Option as of the date on which such transfers were initiated from the Optionee’s account and made irrevocable by Optionee.

5. Compliance with Laws and Regulations. The Plan and this Agreement are intended to comply with Section 25102(o) and Rule 701. Any provision of this Agreement that is inconsistent with Section 25102(o) or Rule 701 shall, without further act or amendment by the Company or the Committee, be reformed to comply with the requirements of Section 25102(o) and/or Rule 701. The exercise of this Option and the issuance and transfer of Shares shall be subject to compliance by the Company and Optionee with all applicable requirements of federal and state securities laws and with all applicable requirements of any stock exchange on which the Common Stock may be listed at the time of such issuance or transfer. Optionee understands that the Company is under no obligation to register or qualify the Shares with the SEC, any state securities commission or any stock exchange to effect such compliance.

6. Nontransferability of Option. This Option may not be transferred in any manner other than by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to a testamentary trust in which the options are to be passed to beneficiaries upon the death of the trustor (settlor) or a revocable trust, or by gift to “immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may be exercised during the lifetime of Optionee only by Optionee or in the event of Optionee’s incapacity, by Optionee’s legal representative. The terms of this Option shall be binding upon the executors, administrators, successors and assigns of Optionee.

7. RESTRICTIONS ON TRANSFER.

(a) Optionee shall have notified the Company of the proposed disposition and provided a written summary of the terms and conditions of the proposed disposition;

(b) Optionee shall have complied with all requirements of this Agreement and the Bylaws applicable to the disposition of the Shares;

(c) Optionee shall have provided the Company with written assurances, in form and substance satisfactory to counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or under any applicable state securities laws or (ii) all appropriate actions necessary for compliance with the registration requirements of the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) or applicable state securities laws have been taken; and

(d) Optionee shall have provided the Company with written assurances, in form and substance satisfactory to the Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares pursuant to the provisions of the regulations promulgated under Section 25102(o), Rule 701 or under any other applicable securities laws or adversely affect the Company’s ability to rely on the exemption(s) from registration under the Securities Act or under any other applicable securities laws for the grant of the Option, the issuance of Shares thereunder or any other issuance of securities under the Plan.

8. MARKET STANDOFF AGREEMENT. Optionee agrees that, subject to any early release provisions that apply pro rata to stockholders of the Company according to their holdings of Common Stock (determined on an as-converted into Common Stock basis), Optionee will not, for a period of up to one hundred eighty (180) days (plus up to an additional thirty five (35) days to the extent reasonably requested by the Company or such underwriter(s) to accommodate regulatory restrictions on the publication or other distribution of research reports or earnings releases by the Company, including NASD and NYSE rules) following the effective date of the registration statement filed with the SEC relating to the initial underwritten sale of Common Stock of the Company to the public under the Securities Act (the “IPO”), directly or indirectly sell, offer to sell, grant any option for the sale of, or otherwise dispose of any Common Stock or securities convertible into Common Stock, except for: (i) transfers of Shares permitted under Section 9.6 hereof so long as such transferee furnishes to the Company and the managing underwriter their written consent to be bound by this Section 8 as a condition precedent to such transfer; and (ii) sales of any securities to be included in the registration statement for the IPO. For the avoidance of doubt, the provisions of this Section shall only apply to the IPO. The restricted period shall in any event terminate two (2) years after the closing date of the IPO. In order to enforce the foregoing covenant, the Company shall have the right to place restrictive legends on the certificates representing the Shares subject to this Section and to impose stop transfer instructions with respect to the Shares until the end of such period. Optionee further agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing restrictions on transfer. For the avoidance of doubt, the foregoing provisions of this Section shall not apply to any registration of securities of the Company (a) under an employee benefit plan or (b) in a merger, consolidation, business combination or similar transaction.

9. COMPANY’S RIGHT OF FIRST REFUSAL. Subject to the restrictions on transfer set forth in the Bylaws, before any Shares held by Optionee or any transferee of such Shares (either sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its assignee(s) will have a right of first refusal to purchase the Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First Refusal”).

10. RIGHTS AS A STOCKHOLDER. Optionee shall not have any of the rights of a stockholder with respect to any Shares unless and until such Shares are issued to Optionee. Subject to the terms and conditions of this Agreement, Optionee will have all of the rights of a stockholder of the Company with respect to the Shares from and after the date that Shares are issued to Optionee pursuant to, and in accordance with, the terms of the Exercise Agreement until such time as Optionee disposes of the Shares or the Company and/or its assignee(s) exercise(s) the Right of First Refusal. Upon an exercise of the Right of First Refusal, Optionee will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to receive payment for the Shares so purchased in accordance with the provisions of this Agreement, and Optionee will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation.

11. ESCROW. As security for Optionee’s faithful performance of this Agreement, Optionee agrees, immediately upon receipt of the stock certificate(s) evidencing the Shares to deliver such certificate(s) to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is hereby appointed to hold such certificate(s) in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Optionee and the Company agree that Escrow Holder will not be liable to any party to this Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the duties of Escrow Holder under this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to the transactions contemplated by this Agreement and will not be liable for any act or omission taken by Escrow Holder in good faith reliance on such documents, the advice of counsel or a court order. The Shares will be released from escrow upon termination of the Right of First Refusal.

12. Company Co-Sale Agreement and Voting Agreement. As a material inducement and consideration for the Company to enter into this Agreement, Optionee hereby agrees that if, the Company requests Optionee to enter into and become a party to (a) the Company Co-Sale Agreement (and to subject the Shares to the rights of first refusal held by the Company and other Company investors thereunder and the co-sale rights of other investors thereunder) and/or (b) the Company Voting Agreement (pursuant to which Optionee would agree to vote all shares of Company stock held by Optionee for the election of directors and in favor of certain material transactions (such as mergers or sales of the Company), then Optionee will enter into such agreements and execute and deliver signature pages thereto (as requested by the Company) in such capacities as the Company requests, at the time of exercising this Option and as a condition to such exercise or at any later time.

13. RESTRICTIVE LEGENDS AND STOP-TRANSFER ORDERS.

(a) THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS.

(b) THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON RESALE AND TRANSFER, INCLUDING THE RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S) AS SET FORTH IN A STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH SALE AND TRANSFER RESTRICTIONS, INCLUDING THE RIGHT OF FIRST REFUSAL, ARE BINDING ON TRANSFEREES OF THESE SHARES.

(c) THE SHARES EVIDENCED HEREBY ARE SUBJECT TO A RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE CORPORATION AND/OR ITS ASSIGNEE(S), AS PROVIDED IN THE BYLAWS OF THE CORPORATION, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE CORPORATION.

(d) THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A MARKET STANDOFF RESTRICTION AS SET FORTH IN A CERTAIN STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE EFFECTIVE DATE OF CERTAIN PUBLIC OFFERINGS OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES.

Optionee agrees that if Optionee becomes a party to (i) the Company Co-Sale Agreement or (ii) (A) the Company’s Amended and Restated Voting Agreement dated as of April 24, 2020 among the Company and certain stockholders of the Company, as such may be amended and/or restated from time to time, and/or (B) any other voting agreement that is a successor to or replacement of such agreement (collectively, the “Company Voting Agreement”), then Optionee agrees that the stock certificate(s) evidencing the Shares shall, in addition, bear any legends required under the Company Co-Sale Agreement and/or the Company Voting Agreement, as applicable.

14. CERTAIN TAX CONSEQUENCES. Set forth below is a brief summary as of the Effective Date of the Plan of some of the federal tax consequences of exercise of the Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THE OPTION OR DISPOSING OF THE SHARES.

(a) Incentive Stock Options. If the Shares are held for more than twelve (12) months after the date of purchase of the Shares pursuant to the exercise of an ISO and are disposed of more than two (2) years after the Date of Grant, any gain realized on disposition of the Shares will be treated as long term capital gain for federal income tax purposes. If Shares purchased under an ISO are disposed of within the applicable one (1) year or two (2) year period, any gain realized on such disposition will be treated as compensation income (taxable at ordinary income rates in the year of the disposition) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price.

(b) Nonqualified Stock Options. If the Shares are held for more than twelve (12) months after the date of purchase of the Shares pursuant to the exercise of an NQSO, any gain realized on disposition of the Shares will be treated as long term capital gain.

15. GENERAL PROVISIONS.

16. NOTICES. Any and all notices required or permitted to be given to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the following: (i) at the time of personal delivery, if delivery is in person; (ii) at the time an electronic confirmation of receipt is received, if delivery is by email; (iii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or hereafter modified by subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iv) one (1) business day after deposit with an express overnight courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (v) three (3) business days after deposit in the United States mail by certified mail (return receipt requested) for United States deliveries. Any notice for delivery outside the United States will be sent by email, facsimile or by express courier. Any notice not delivered personally or by email will be sent with postage and/or other charges prepaid and properly addressed to Optionee at the last known address or facsimile number on the books of the Company, or at such other address or facsimile number as such other party may designate by one of the indicated means of notice herein to the other parties hereto or, in the case of the Company, to it at its principal place of business. Notices to the Company will be marked “Attention: Chief Financial Officer.” Notices by facsimile shall be machine verified as received.

17. SUCCESSORS AND ASSIGNS. The Company may assign any of its rights under this Agreement including its rights to purchase Shares under the Right of First Refusal. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein, this Agreement shall be binding upon Optionee and Optionee’s heirs, executors, administrators, legal representatives, successors and assigns.

18. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the internal laws of the State of Delaware as such laws are applied to agreements between Delaware residents entered into and to be performed entirely within Delaware. If any provision of this Agreement is determined by a court of law to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable.

19. Further Assurances. The parties agree to execute such further documents and instruments and to take such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement.

20. Titles and Headings. The titles, captions and headings of this Agreement are included for ease of reference only and will be disregarded in interpreting or construing this Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean “sections” and “exhibits” to this Agreement.

21. Counterparts. This Agreement may be executed in any number of counterparts, each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement.

22. Severability. If any provision of this Agreement is determined by any court or arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or provision cannot be so enforced, such provision shall be stricken from this Agreement and the remainder of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never been contained in this Agreement. Notwithstanding the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator of competent jurisdiction shall be binding, then both parties agree to substitute such provision(s) through good faith negotiations.

* * * * *

Attachment: Annex A: Form of Stock Option Exercise Notice and Agreement

addendum

TERMS AND CONDITIONS

FOR OPTIONEES OUTSIDE THE U.S.

Terms and Conditions

This Addendum includes additional terms and conditions that govern the Option granted to Optionee under the Plan if Optionee resides and/or works in one of the countries listed below. Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Plan and/or the Agreement to which this Addendum is attached.

If Optionee is a citizen or resident of a country other than the one in which he or she is currently working and/or residing, transfers to another country after the Date of Grant, is a consultant, changes employment status to a consultant position, or is considered a resident of another country for local law purposes, the Company shall, in its discretion, determine the extent to which the special terms and conditions contained herein shall be applicable to Optionee. References to Optionee’s Employer shall include any entity that engages Optionee’s services.

In accepting this Option, Optionee acknowledges, understands and agrees that:

Data Privacy. Optionee hereby explicitly and unambiguously consent to the collection, processing, use and transfer, in electronic or other form, of Optionee’s personal data as described in this Agreement and any other award materials by and among, as applicable, the Company, or, if different, Optionee’s employer (the “Employer”), and its Subsidiaries, Parent or Affiliates for the exclusive purpose of implementing, administering and managing Optionee’s participation in the Plan.

Optionee understands that the Company and the Employer may hold certain personal information about Optionee, including but not limited to, Optionee’s name, home address and telephone number, date of birth, social insurance number or other identification number, salary, nationality, job title, any shares of Class A Common Stock or directorships held in the Company, details of all awards or any other entitlement to shares of Class A Common Stock granted, canceled, exercised, vested, unvested or outstanding in Optionee’s favor, for the exclusive purpose of implementing, administering and managing the Plan (“Data”).

Optionee understands that Data will be transferred to any third parties assisting the Company with the implementation, administration and management of the Plan. Optionee understands that the recipients of the Data may be located in the United States or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than Optionee’s country. Optionee understands that Optionee may request a list with the names and addresses of any potential recipients of the Data by contacting Optionee’s local human resources representative. Optionee authorizes the Company and any other possible recipients which may assist the Company (presently or in the future) with implementing, administering and managing the Plan to receive, possess, use, retain and transfer the Data, in electronic or other form, for the sole purpose of implementing, administering and managing Optionee’s participation in the Plan. Optionee understands that Data will be held only as long as is necessary to implement, administer and manage Optionee’s participation in the Plan. Optionee understands that Optionee may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing Optionee’s local human resources representative. Optionee understands, however, that refusing or withdrawing Optionee’s consent may affect Optionee’s ability to

participate in the Plan. For more information on the consequences of Optionee’s refusal to consent or withdrawal of consent, Optionee understands that Optionee may contact Optionee’s local human resources representative.

In accepting this Option, Optionee also acknowledges, understands and agrees that:

Notifications

This Addendum also includes information regarding exchange controls and certain other issues of which Optionee should be aware with respect to Optionee’s participation in the Plan. The information is provided solely for the convenience of Optionee and is based on the securities, exchange control and other laws in effect in the respective countries as of January 2018. Such laws are often complex and change frequently. As a result, the Company strongly recommends that Optionee not rely on the information noted herein as the only source of information relating to the consequences of Optionee’s participation in the Plan because the information may be out of date by the time Optionee vests in or exercises this Option or sells any exercised Shares.

In addition, the information contained in this Addendum is general in nature and may not apply to Optionee’s particular situation, and the Company is not in a position to assure Optionee of any particular result. Accordingly, Optionee is advised to seek appropriate professional advice as to how the applicable laws in his or her country may apply to his or her situation.

Finally, Optionee understands that if he or she is a citizen or resident of a country other than the one in which he or she is currently residing and/or working, transfers to another country after the Date of Grant, or is considered a resident of another country for local law purposes, the notifications contained herein may not be applicable to Optionee in the same manner.

United Kingdom

Terms and Conditions

Section 431 Election. Except as provided below, as a condition of participation in the Plan and no later than the time of exercise of the Option, Optionee agrees to enter into, jointly with Optionee’s employer (or the Company or its Subsidiaries or Affiliates, as applicable), a joint election within Section 431 of the U.K. Income Tax (Earnings and Pensions) Act 2003 (“ITEPA 2003”) in respect of computing any tax charge on the acquisition of “restricted securities” (as defined in Sections 423 and 424 of ITEPA 2003), and that Optionee will not revoke such election at any time (the “Joint Election”). This election will be to treat the Shares acquired pursuant to the exercise of the Option as if such Shares were not restricted securities (for U.K. tax purposes only). If Optionee is required to but does not enter into such an election prior to the exercise of the Option, Optionee will not be entitled to exercise the Option and no Shares will be issued to Optionee, without any liability to the Company or Optionee’s employer.

If the Optionee exercises the Options at a time when the Shares are considered to be “readily convertible assets” and are publicly traded, quoted or listed on a recognized exchange or securities market , Optionee shall not be required to enter into a Joint Election as a condition of participation in the Plan and the exercise of the Option.

Responsibility for Taxes.

If payment or withholding of the income tax is due in connection with the Option and is not made within ninety (90) days after the end of the year in which the event giving rise to the income tax liability occurs or such other period specified in Section 222(1)(c) of the ITEPA 2003 (the “Due Date”), the amount of any uncollected income tax will constitute a loan owed by Optionee to the Employer, effective on the Due Date. Optionee agrees that the loan will bear interest at then-current Official Rate of Her Majesty’s Revenue and Customs (“HMRC”), it will be immediately due and repayable, and the Company or the Employer may recover it at any time thereafter by any of the means referred to in the Agreement.

Notwithstanding the foregoing, if Optionee is a director or executive officer of the Company (within the meaning of Section 13(k) of the U.S. Securities Exchange Act of 1934, as amended), Optionee will not be eligible for such a loan to cover the income tax due as described above. In the event that Optionee is a director or executive officer and the income tax is not collected from or paid by Optionee by the Due Date, the amount of any uncollected tax will constitute a benefit to Optionee on which additional income tax and National Insurance Contributions, or NICs will be payable. Optionee acknowledges that the Company or the Employer may recover any such additional income tax and NICs at any time thereafter by any of the means referred to in the Agreement. Optionee will also be responsible for reporting and paying any income tax and NICs due on this additional benefit directly to HMRC under the self-assessment regime.

Annex A

FORM OF STOCK OPTION EXERCISE NOTICE AND AGREEMENT

STOCK OPTION EXERCISE NOTICE AND AGREEMENT

Avalyn Pharma Inc.

2022 Equity Incentive Plan

*NOTE: You must sign this Notice before submitting it to Avalyn Pharma Inc. (the “Company”) AND, if requested to do so by the Company, you must also sign the signature pages to the Company’s then-current Company Co-Sale Agreement and Company Voting Agreement (as those terms are defined in the Stock Option Agreement) before submitting this Notice to the Company.

Optionee Information: Please provide the following information about yourself (“Optionee”):

Option Information: Please provide this information on the option being exercised (the “Option”):

Exercise Information:

Number of shares of Common Stock of the Company for which the Option is now being exercised [________________]. (These shares are referred to below as the “Purchased Shares.”)

Total Exercise Price Being Paid for the Purchased Shares: $____________

Form of payment enclosed [check all that apply]:

Check for $____________, payable to “Avalyn Pharma Inc.”

Certificate(s) for ________________ shares of Common Stock of the Company. These shares will be valued as of the date this notice is received by the Company. [Requires Company consent.]

Automated Clearing House (“ACH”) transfer in the amount of $___________.

Agreements, Representations and Acknowledgments of Optionee: By signing this Stock Option Exercise Notice and Agreement, Optionee hereby agrees with, and represents to, the Company as follows:

The undersigned hereby executes and delivers this Stock Option Exercise Notice and Agreement and agrees to be bound by its terms.

[Signature Page to Stock Option Exercise Notice and Agreement]