SEAGEN INC.  GLOBAL STOCK UNIT GRANT NOTICE (AMENDED AND RESTATED 2007 EQUITY INCENTIVE PLAN)  Seagen Inc. (the “Company”), pursuant to its Amended and Restated 2007 Equity Incentive Plan (the “Plan”), hereby  awards to Participant a Stock Unit Award for the number of stock units set forth below (the “Award”).  The Award is  subject to all of the terms and conditions as set forth herein and in the Plan and the Global Stock Unit Agreement  (including any additional terms and conditions for Participant’s country set forth in the attached appendix (the  “Appendix”)), both of which are incorporated herein in their entirety.  Capitalized terms not otherwise defined herein  shall have the meanings set forth in the Plan or the Global Stock Unit Agreement, as applicable. Except as otherwise  explicitly provided herein, in the event of any conflict between the terms in the Award and the Plan, the terms of the  Plan shall control.  Participant: [•]  Date of Grant: [•]  Vesting Commencement Date: [•]  Number of Stock Units   Subject to Award: [•]  Vesting Schedule: Subject to Section 2 of the Global Stock Unit Agreement, the Award shall vest on the below vesting date(s).  Notwithstanding the following, vesting shall terminate upon the  Participant’s Termination of Employment.  [•] Issuance Schedule: The Shares to be issued in respect of the Award will be issued in accordance with the  issuance schedule set forth in Section 7 of the Global Stock Unit Agreement.  Sell to Cover Election: By accepting this Award, Participant hereby: (1) elects, effective on the date Participant  accepts this Award, to sell Shares issued in respect of the Award in an amount  determined in accordance with Section 11(c) of the Global Stock Unit Agreement, and  to allow the Agent to remit the cash proceeds of such sale to the Company as more  specifically set forth in Section 11(c) of the Global Stock Unit Agreement (a “Sell to  Cover”); (2) directs the Company to make a cash payment to satisfy the Withholding  Obligation from the cash proceeds of such sale directly to the appropriate taxing  authorities; and (3) represents and warrants that (i) Participant has carefully  reviewed Section 11(c) of the Global Stock Unit Agreement, (ii) Participant is not  aware of any material, nonpublic information with respect to the Company or any  securities of the Company as of the Date of Grant, provided that if Participant is in  possession of such material, nonpublic information as of the Date of Grant, then the  mandatory sale of Shares pursuant to Section 11(c) of the Global Stock Unit  Agreement shall become a binding contract as of the first date thereafter on which  Participant is not in possession of material, nonpublic information and Participant  shall not effect any sales pursuant to Section 11(c) on the basis of material,  nonpublic information of which Participant was aware of on the Date of Grant, (iii)  on the date Participant accepts this Award Participant is not subject to any legal,  regulatory or contractual restriction that would prevent the Agent from conducting  Exhibit 10.4 
 
 
    8-15-2022       sales, does not have, and will not attempt to exercise, authority, influence or control  over any sales of Shares effected by the Agent pursuant to the Global Stock Unit  Agreement, and is entering into the Global Stock Unit Agreement and this election  to Sell to Cover in good faith and not as part of a plan or scheme to evade the  prohibitions of Rule 10b5-1 (regarding trading of the Company's securities on the  basis of material nonpublic information) under the Exchange Act (or other  applicable securities laws in the case of Participants not subject to U.S. securities  laws), and (iv) it is Participant’s intent that this election to Sell to Cover and Section  11(c) of the Global Stock Unit Agreement comply with the requirements of  Rule 10b5-1(c)(1) under the Exchange Act (or other applicable securities laws in  the case of Participants not subject to U.S. securities laws) and be interpreted to  comply with the requirements of Rule 10b5-1(c) under the Exchange Act (or other  applicable securities laws in the case of Participants not subject to U.S. securities  laws). Participant further acknowledges that by accepting this Award, Participant  is adopting a 10b5-1 Plan (as defined in Section 11(c) of the Global Stock Unit  Agreement) to permit Participant to conduct a Sell to Cover sufficient to satisfy the  Withholding Obligation as more specifically set forth in Section 11(c) of the Global  Stock Unit Agreement.  Additional Terms/Acknowledgements:  Participant acknowledges receipt of, and understands and agrees to, this  Global Stock Unit Grant Notice, the Global Stock Unit Agreement (including the provisions of Section 11(c) thereof  with respect to the Sell to Cover and the Appendix) and the Plan. Participant also acknowledges receipt of the  Prospectus for the Plan.  Participant further acknowledges that as of the Date of Grant, this Global Stock Unit Grant  Notice, the Global Stock Unit Agreement (including the Appendix) and the Plan set forth the entire understanding  between Participant and the Company regarding the Award and supersede all prior oral and written agreements on  that subject, with the exception of any arrangement that would provide for vesting acceleration of the Award upon the  terms and conditions set forth therein.    Participant’s electronic acceptance shall signify Participant’s execution of this Global Stock Unit Grant Notice and  understanding that this Award is granted and governed under the terms and conditions set forth herein.     SEAGEN INC.              Jean I. Liu  Chief Legal Officer      **PLEASE PRINT AND RETAIN THIS AGREEMENT FOR YOUR RECORDS** 
 
 
   1.   SEAGEN INC.  AMENDED AND RESTATED 2007 EQUITY INCENTIVE PLAN  GLOBAL STOCK UNIT AGREEMENT  Pursuant to the Global Stock Unit Grant Notice (“Grant Notice”) and this Global Stock  Unit Agreement, including any additional terms and conditions for your country set forth in the  appendix attached hereto (this “Agreement”), Seagen Inc. (the “Company”) has awarded you a  Stock Unit Award (the “Award”) under its Amended and Restated 2007 Equity Incentive Plan (the  “Plan”). Your Award is granted to you effective as of the Date of Grant set forth in the Grant  Notice for this Award.  This Agreement shall be deemed to be agreed to by the Company and you  upon your execution of the Grant Notice to which it is attached.  Capitalized terms not explicitly  defined in this Agreement shall have the same meanings given to them in the Plan or the Grant  Notice, as applicable.  Except as otherwise explicitly provided herein, in the event of any conflict  between the terms in this Agreement and the Plan, the terms of the Plan shall control.  The details  of your Award, in addition to those set forth in the Grant Notice and the Plan, are as follows.  1. GRANT OF THE AWARD.    This Award represents the right to be issued on a future  date the number of Shares that is equal to the number of stock units indicated in the Grant Notice  (the “Stock Units”).  As of the Date of Grant, the Company will credit to a bookkeeping account  maintained by the Company for your benefit (the “Account”) the number of Stock Units subject  to the Award.  This Award is granted in consideration of your services to the Company or an  Affiliate.  Except as otherwise provided herein, you will not be required to make any payment to  the Company (other than future services to the Company) with respect to your receipt of the  Award, the vesting of the Stock Units or the delivery of the Shares to be issued in respect of the  Award.  2. VESTING.      (a) Subject to the limitations contained herein, your Award will vest, if at all,  in accordance with the vesting schedule provided in the Grant Notice, provided that you have not  incurred a Termination of Employment before the vesting date set forth in the Grant Notice.  Upon  your Termination of Employment, the Stock Units credited to the Account that are not vested on  the date of such Termination of Employment will be forfeited at no cost to the Company and you  will have no further right, title or interest in the Stock Units or the Shares to be issued in respect  of the Award.    (b) By accepting the grant of this Award, you acknowledge and agree that the  terms set forth in this Section 2 supersede any contrary terms regarding the vesting of this Award  set forth in any notice or other communication that you receive from, or that is displayed by,  E*TRADE or other third party designated by the Company.  (c) For purposes of your Award, your Termination of Employment will be  considered to be (regardless of the reason of termination, whether or not later found to be invalid  or in breach of employment or other laws or rules in the jurisdiction where you are providing  services or the terms of your employment or service agreement, if any) effective as of the date that  
 
 
   2.   you cease to actively provide services to the Company or any Affiliate and will not be extended  by any notice period (e.g., employment or service would not include any contractual notice period  or any period of “garden leave” or similar period mandated under employment or other laws in the  jurisdiction where you are employed or providing services or the terms of your employment or  service agreement, if any). The Company shall have exclusive discretion to determine when you  are no longer actively employed or providing services for purposes of the Plan (including whether  you still may be considered to be providing services while on a leave of absence).    (d) Notwithstanding the foregoing or anything in this Agreement to the  contrary, in the event of your Termination of Employment as a result of your Disability, the vesting  of your Award shall accelerate such that your Award shall become vested as to an additional twelve  (12) months, effective as of the date of such Termination of Employment, to the extent that your  Award is outstanding on such date.  (e) Notwithstanding the foregoing or anything in this Agreement to the  contrary, in the event of your Termination of Employment as a result of your death, your Award  (and all other Seagen Inc. stock units granted to you that do not have performance or milestone  vesting conditions) shall accelerate and vest in full, effective as of the date of such Termination of  Employment, to the extent that your Award is outstanding on such date.  3. FORFEITURE OF AWARD NOT TIMELY ACCEPTED.  The Award is conditioned  upon your electronic acceptance of the Award, as set forth in the Grant Notice. Notwithstanding  the foregoing or anything in this Agreement to the contrary, if you fail to accept the Award prior  to the vesting dates set forth in the Grant Notice, the portion of the Award that otherwise would  have vested on each such date will be forfeited at no cost to the Company, and you will have no  further right, title or interest in such portion. In the event of your Termination of Employment as  a result of your death or Disability prior to acceptance of the Award, the Company will deem  the Award as being accepted.  4. NUMBER OF SHARES.   (a) The number of Stock Units subject to your Award may be adjusted from  time to time for changes in capitalization, as provided in Section 13 of the Plan.  (b) Any additional Stock Units that become subject to the Award pursuant to  this Section 4 shall be subject, in a manner determined by the Administrator, to the same forfeiture  restrictions, restrictions on transferability, and time and manner of delivery as applicable to the  other Stock Units covered by your Award.  (c) Notwithstanding the provisions of this Section 4, no fractional Shares or  rights for fractional Shares shall be created pursuant to this Section 4.  The Administrator shall, in  its discretion, determine an equivalent benefit for any fractional Shares or fractional Shares that  might be created by the adjustments referred to in this Section 4.  5. COMPLIANCE WITH APPLICABLE LAWS.  You may not be issued any Shares in  respect of your Award unless either (i) such Shares are registered under the Securities Act (or other  applicable securities laws in the case of Participants not subject to U.S. securities laws); or (ii) the  
 
 
   3.   Company has determined that such issuance would be exempt from the registration requirements  of the Securities Act (or other applicable securities laws in the case of Participants not subject to  U.S. securities laws). Your Award also must comply with other applicable laws and regulations  governing the Award and issuance of Shares, and you will not receive such Shares if the Company  determines that such receipt would not be in material compliance with such laws and regulations.  You represent and warrant that you (a) have been furnished with a copy of the prospectus for the  Plan and all information deemed necessary to evaluate the merits and risks of receipt of the Award,  (b) have had the opportunity to ask questions concerning the information received about the Award  and the Company, and (c) have been given the opportunity to obtain any information you deem  necessary to verify the accuracy of any information obtained concerning the Award and the  Company.  6. TRANSFER RESTRICTIONS.  Your Award is not transferable, except by will or by  the laws of descent and distribution.  In addition to any other limitation on transfer created by  applicable securities laws, you agree not to assign, hypothecate, donate, encumber or otherwise  dispose of any interest in any of the Shares subject to the Award until such Shares are issued to  you in accordance with Section 7 of this Agreement.  After such Shares have been issued to you,  you are free to assign, hypothecate, donate, encumber or otherwise dispose of any interest in such  Shares provided that any such actions are in compliance with the provisions herein and applicable  securities laws.    7. DATE OF ISSUANCE.  (a) If the Award is exempt from application of Section 409A of the Code and  any state law of similar effect (collectively “Section 409A”), then, subject to Section 11, the  Company will deliver to you a number of Shares equal to the number of vested Stock Units subject  to your Award, including any additional Stock Units received pursuant to Section 4 above that  relate to those vested Stock Units on or within 60 days following the applicable vesting date (the  “Original Issuance Date”).  However, if the Original Issuance Date falls on a date that is not a  business day, such delivery date shall instead fall on the next following business day.   Notwithstanding the foregoing, if (i) the Original Issuance Date does not occur (1) during an “open  window period” applicable to you, as determined by the Company in accordance with the  Company’s then-effective policy or policies on trading in Company securities or (2) on a date  when you are otherwise permitted to sell Shares on the open market; and (ii) the Company elects,  prior to the Original Issuance Date, (x) not to satisfy the Withholding Obligation (as defined in  Section 11(b) hereof) by withholding Shares from the Shares otherwise due, on the Original  Issuance Date, to you under this Award pursuant to Section 11 hereof, (y) not to permit you to then  effect a Sell to Cover under the 10b5-1 Plan (as defined in Section 11(c) of this Agreement), and  (z) not to permit you to satisfy the Withholding Obligation in cash, then such Shares shall not be  delivered on such Original Issuance Date and shall instead be delivered on the first business day  of the next occurring open window period applicable to you or the next business day when you are  not prohibited from selling Shares on the open market, as applicable (and regardless of whether  there has been a Termination of Employment before such time), but in no event later than the 15th  day of the third calendar month of the calendar year following the calendar year in which the Stock  Units are no longer considered to be subject to a substantial risk of forfeiture.  Delivery of the  Shares pursuant to the provisions of this Section 7(a) is intended to comply with the requirements  for the short-term deferral exemption available under Treasury Regulations Section 1.409A- 
 
 
   4.   1(b)(4) and shall be construed and administered in such manner.  The form of such delivery of the  Shares (e.g., a stock certificate or electronic entry evidencing such Shares) shall be determined by  the Company.  (b) The provisions of this Section 7(b) are intended to apply if the Award is  subject to Section 409A because of the terms of a severance arrangement or other agreement  between you and the Company, if any, that provide for acceleration of vesting of the Award upon  your separation from service (as such term is defined in Section 409A(a)(2)(A)(i) of the Code  (“Separation from Service”) and such severance benefit does not satisfy the requirements for an  exemption from application of Section 409A provided under Treasury Regulations Section  1.409A-1(b)(4) or 1.409A-1(b)(9) (“Non-Exempt Severance Arrangement”).  If the Award is  subject to and not exempt from application of Section 409A due to application of a Non-Exempt  Severance Arrangement, the following provisions in this Section 7(b) shall supersede anything to  the contrary in Section 7(a).    (i) If the Award vests in the ordinary course before your Termination  of Employment in accordance with the vesting schedule set forth in the Grant Notice, without  accelerating vesting under the terms of a Non-Exempt Severance Arrangement, in no event will  the Shares to be issued in respect of your Award be issued any later than December 31st of the  calendar year that includes the applicable vesting date.    (ii) If vesting of the Award accelerates under the terms of a Non-Exempt  Severance Arrangement in connection with your Separation from Service, and such vesting  acceleration provisions  were in effect as of the date of grant of the Award and, therefore, are part  of the terms of the Award as of the date of grant, then the Shares will be earlier issued in respect  of your Award upon your Separation from Service in accordance with the terms of the Non-Exempt  Severance Arrangement, but in no event later than the 60th day that follows the date of your  Separation from Service.  However, if at the time the Shares would otherwise be issued you are  subject to the distribution limitations contained in Section 409A applicable to “specified  employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such Shares shall instead be  issued on the date that is six months following the date of your Separation from Service, or, if  earlier, the date of your death that occurs within such six-month period.  (iii) If  either (A) vesting of the Award accelerates under the terms of a  Non-Exempt Severance Arrangement in connection with your Separation from Service, and such  vesting acceleration provisions were not in effect as of the date of grant of the Award and,  therefore, are not a part of the terms of the Award on the date of grant, or (B) vesting accelerates  pursuant to Section (a) or Section 13 of the Plan, then such acceleration of vesting of the Award  shall not accelerate the issuance date of the Shares (or any substitute property), but such Shares  (or substitute property) shall instead be issued on the same schedule as set forth in the Grant Notice  as if they had vested in the ordinary course before your Termination of Employment,  notwithstanding the vesting acceleration of the Award.  Such issuance schedule is intended to  satisfy the requirements of payment on a specified date or pursuant to a fixed schedule, as provided  under Treasury Regulations Section 1.409A-3(a)(4).  (c) Notwithstanding anything to the contrary set forth herein, the Company  explicitly reserves the right to earlier issue the Shares in respect of the Award to the extent  
 
 
   5.   permitted and in compliance with the requirements of Section 409A, including pursuant to any of  the exemptions available in Treasury Regulations Section 1.409A-3(j)(4)(ix).  (d) The provisions in this Agreement for delivery of the Shares in respect of the  Award are intended either to comply with the requirements of Section 409A or to provide a basis  for exemption from such requirements so that the delivery of such Shares will not trigger the  additional tax imposed under Section 409A, and any ambiguities herein will be so interpreted.  (e) The Administrator may modify the terms of this Agreement and/or the Plan  without your consent, in the manner that the Administrator may determine to be necessary or  advisable in order to comply with Code Section 409A or to mitigate any additional tax, interest  and/or penalties or other adverse tax consequences that may apply under Code Section 409A if  compliance is not practical. This Section 7(e) does not create an obligation on the part of the  Company to modify the terms of this Agreement or the Plan and does not guarantee that this Award  or the delivery of Shares upon settlement of the Award will not be subject to taxes, interest and  penalties or any other adverse tax consequences under Code Section 409A. Nothing in this  Agreement shall provide a basis for any person to take any action against the Company or any of  its Subsidiaries or Affiliates based on matters covered by Code Section 409A, including the tax  treatment of any amounts paid under this Agreement, and neither the Company nor any of its  Subsidiaries or Affiliates will have any liability under any circumstances to the Participant or any  other party if the Award, the delivery of Shares upon vesting/settlement of the Award or other  payment or tax event hereunder that is intended to be exempt from, or compliant with, Code  Section 409A, is not so exempt or compliant or for any action taken by the Administrator with  respect thereto.  8. DIVIDENDS.   You shall receive no benefit or adjustment to your Award with respect  to any cash dividend, stock dividend or other distribution that does not result from a change in  capitalization as provided in Section 13 of the Plan; provided, however, that this sentence shall not  apply with respect to any Shares that are delivered to you in connection with your Award after  such Shares have been delivered to you.  9. AWARD NOT A SERVICE CONTRACT.    (a) Nothing in this Agreement (including, but not limited to, the vesting of your  Award pursuant to the schedule set forth in Section 2 herein or the issuance of the Shares in respect  of your Award), the Plan or any covenant of good faith and fair dealing that may be found implicit  in this Agreement or the Plan shall:  (i) confer upon you any right to continue in the employ of, or  affiliation with, the Company or an Affiliate; (ii) constitute any promise or commitment by the  Company or an Affiliate regarding the fact or nature of future positions, future work assignments,  future compensation or any other term or condition of employment or affiliation; (iii) confer any  right or benefit under this Agreement or the Plan unless such right or benefit has specifically  accrued under the terms of this Agreement or Plan; or (iv) deprive the Company or an Affiliate of  the right to terminate your employment without regard to any future vesting opportunity that you  may have.  (b) By accepting this Award, you acknowledge and agree that the right to  continue vesting in the Award pursuant to the schedule set forth in Section 2 is earned only by  
 
 
   6.   continuing as an employee, director or consultant of the Company or Affiliate, as applicable (not  through the act of being hired, being granted this Award or any other award or benefit) and that  the Company has the right to reorganize, sell, spin-out or otherwise restructure one or more of its  businesses or Affiliates at any time or from time to time, as it deems appropriate (a  “reorganization”).  You further acknowledge and agree that such a reorganization could result in  your Termination of Employment, or the termination of Affiliate status of your employer and the  loss of benefits available to you under this Agreement, including but not limited to, the termination  of the right to continue vesting in the Award.  You further acknowledge and agree that this  Agreement, the Plan, the transactions contemplated hereunder and the vesting schedule set forth  herein or any covenant of good faith and fair dealing that may be found implicit in any of them do  not constitute an express or implied promise of continued engagement as an employee or  consultant for the term of this Agreement, for any period, or at all, and shall not interfere in any  way with your right or the Company’s right to terminate your service at any time, with or without  cause and with or without notice.  10. NATURE OF AWARD.  In accepting your Award, you acknowledge, understand and  agree that:  (a) the Plan is established voluntarily by the Company, it is discretionary in  nature and it may be modified, amended, suspended or terminated by the Company at any time, to  the extent permitted under the Plan;  (b) the Award is exceptional, voluntary and occasional and does not create any  contractual or other right to receive future Awards (whether on the same or different terms), or  benefits in lieu of an Award, even if an Award has been granted in the past;  (c) all decisions with respect to future awards of Stock Units or other grants, if  any, will be at the sole discretion of the Company;  (d) you are voluntarily participating in the Plan;  (e) the Award and any Shares acquired under the Plan, and the income from  and value of same, are not intended to replace any pension rights or compensation;  (f) the future value of the Shares underlying the Award is unknown,  indeterminable and cannot be predicted with certainty;  (g) no claim or entitlement to compensation or damages shall arise from  forfeiture of the Award resulting from your Termination of Employment (for any reason  whatsoever whether or not later found to be invalid or in breach of employment laws in the  jurisdiction where you are employed or rendering services or the terms of your employment  agreement, if any);  (h) unless otherwise provided herein, in the Plan or by the Company in its  discretion, the Award and the benefits evidenced by this Agreement do not create any entitlement  to have the Award or any such benefits transferred to, or assumed by, another company nor to be  exchanged, cashed out or substituted for, in connection with any corporate transaction affecting  the Shares;  
 
 
   7.   (i) unless otherwise agreed with the Company, the Award and the Shares  subject to the Award, and the income from and value of same, are not granted as consideration for,  or in connection with, the service you may provide as a director of an Affiliate;   (j) if the Award vests and you are issued Shares, the value of such Shares may  increase or decrease in value following the date the Shares are issued; even below the Fair Market  Value on the date the Award is granted to you;  (k) the Award and the Shares subject to the Award, and the income and value  of same, are not part of normal or expected compensation for any purpose, including, without  limitation, calculating any severance, resignation, termination, redundancy, dismissal, end-of- service payments, bonuses, holiday pay, long-service awards, pension or retirement or welfare  benefits or similar payments; and   (l) the Award and the Shares subject to the Award, and the income and value  of same, shall not be included as compensation, earnings, salaries, or other similar terms used  when calculating your benefits under any benefit plan sponsored by the Company, except as such  plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify,  or terminate any of the Company’s benefit plans.  11. TAX OBLIGATIONS.  (a) By accepting this Award, you acknowledge that, regardless of any action  taken by the Company or any Affiliate the ultimate liability for any and all income tax, social  insurance, payroll tax, fringe benefit tax, payment on account or other tax-related items related to  your participation in the Plan and legally applicable to you (“Tax-Related Items”) is and remains  your responsibility and may exceed the amount actually withheld by the Company or its Affiliates,  if any. Further, if you are subject to Tax-Related Items in more than one jurisdiction, you  acknowledge that the Company and/or its Affiliates may be required to withhold or account for  Tax-Related Items in more than one jurisdiction.  The Company has no duty or obligation to  minimize the tax consequences to you of this Award and shall not be liable to you for any adverse  tax consequences to you arising in connection with this Award.   (b) On or before the time you receive a distribution of Shares pursuant to your  Award, or at any time thereafter as requested by the Company, you hereby authorize any required  withholding from the Shares issuable to you and/or otherwise agree to make adequate provision in  cash for any sums required to satisfy any and all Tax-Related Items (the “Withholding  Obligation”).    (c) By accepting this Award, you hereby (i) acknowledge and agree that you  have elected a Sell to Cover (as defined in the Grant Notice) to permit you to satisfy the  Withholding Obligation and that the Withholding Obligation shall be satisfied pursuant to this  Section 11(c) to the fullest extent not otherwise satisfied pursuant to the provisions of Section  11(d) hereof and (ii) further acknowledge and agree to the following provisions:  (i) You hereby irrevocably appoint E*TRADE, or such other registered  broker-dealer that is a member of the Financial Industry Regulatory Authority as the Company  may select, as your agent (the “Agent”), and you authorize and direct the Agent to:  
 
 
   8.   (1) Sell on the open market at the then prevailing market  price(s), on your behalf, as soon as practicable on or after the date on which the Shares are  delivered to you pursuant to Section 7 hereof in connection with the vesting of the Stock Units,  the number (rounded up to the next whole number) of Shares sufficient to generate proceeds to  cover (A) the satisfaction of the Withholding Obligation arising from the vesting of those Stock  Units and the related issuance of Shares to you that is not otherwise satisfied pursuant to Section  11(d) hereof and (B) all applicable fees and commissions due to, or required to be collected by,  the Agent with respect thereto;   (2) Remit directly to the Company and/or any Affiliate the  proceeds necessary to satisfy the Withholding Obligation;  (3) Retain the amount required to cover all applicable fees and  commissions due to, or required to be collected by, the Agent, relating directly to the sale of the  Shares referred to in clause (1) above; and  (4) Remit any remaining funds to you.   (ii) You acknowledge that your election to Sell to Cover and the  corresponding authorization and instruction to the Agent set forth in this Section 11(c) to sell  Shares to satisfy the Withholding Obligation is intended to comply with the requirements of Rule  10b5-1(c)(1) under the Exchange Act (or other applicable securities laws in the case of Participants  not subject to U.S. securities laws) and to be interpreted to comply with the requirements of Rule  10b5-1(c) under the Exchange Act (or other applicable securities laws in the case of Participants  not subject to U.S. securities laws) (your election to Sell to Cover and the provisions of this Section  11(c), collectively, the “10b5-1 Plan”). You acknowledge that by accepting this Award, you are  adopting the 10b5-1 Plan to permit you to satisfy the Withholding Obligation. You hereby  authorize the Company and the Agent to cooperate and communicate with one another to  determine the number of Shares that must be sold pursuant to Section 11(c)(i) to satisfy your  obligations hereunder.  (iii) You acknowledge that the Agent is under no obligation to arrange  for the sale of Shares at any particular price under this 10b5-1 Plan and that the Agent may effect  sales as provided in this 10b5-1 Plan in one or more sales and that the average price for executions  resulting from bunched orders may be assigned to your account.  You further acknowledge that  you will be responsible for all brokerage fees and other costs of sale associated with this 10b5-1  Plan, and you agree to indemnify and hold the Company harmless from any losses, costs, damages,  or expenses relating to any such sale.  In addition, you acknowledge that it may not be possible to  sell Shares as provided for in this 10b5-1 Plan due to (i) a legal or contractual restriction applicable  to you or the Agent, (ii) a market disruption, (iii) a sale effected pursuant to this 10b5-1 Plan that  would not comply (or in the reasonable opinion of the Agent’s counsel is likely not to comply)  with the Securities Act (or other applicable securities laws in the case of Participants not subject  to U.S. securities laws), (iv) the Company’s determination that sales may not be effected under  this 10b5-1 Plan or (v) rules governing order execution priority on the national exchange where  the Shares may be traded.  In the event of the Agent’s inability to sell Shares, you will continue to  be responsible for the timely payment to the Company of all federal, state, local and foreign taxes  
 
 
   9.   that are required by applicable laws and regulations to be withheld, including but not limited to  those amounts specified in Section 11(c)(i)(1) above.  (iv) You acknowledge that regardless of any other term or condition of  this 10b5-1 Plan, the Agent will not be liable to you for (A) special, indirect, punitive, exemplary,  or consequential damages, or incidental losses or damages of any kind, or (B) any failure to  perform or for any delay in performance that results from a cause or circumstance that is beyond  its reasonable control.  (v) You hereby agree to execute and deliver to the Agent any other  agreements or documents as the Agent reasonably deems necessary or appropriate to carry out the  purposes and intent of this 10b5-1 Plan.  The Agent is a third-party beneficiary of this Section  11(c) and the terms of this 10b5-1 Plan.  (vi) Your election to Sell to Cover and to enter into this 10b5-1 Plan is  irrevocable. Upon acceptance of the Award, you have elected to Sell to Cover and to enter into  this 10b5-1 Plan, and you acknowledge that you may not change this election at any time in the  future. This 10b5-1 Plan shall terminate not later than the date on which the Withholding  Obligation arising from the vesting of your Stock Units and the related issuance of Shares has been  satisfied.  (d) Alternatively, or in addition to or in combination with the Sell to Cover  provided for under Section 11(c), you authorize the Company, at its discretion, to satisfy the  Withholding Obligation by the following means (or by a combination of the following means):  (i) Requiring you to pay to the Company any portion of the  Withholding Obligation in cash;  (ii) Withholding from any compensation otherwise payable to you by  the Company; and/or  (iii) Withholding Shares from the Shares issued or otherwise issuable to  you in connection with the Award with a Fair Market Value (measured as of the date Shares are  issued pursuant to Section 7) equal to the amount of the Withholding Obligation.    (e) Unless the Withholding Obligation of the Company and/or any Affiliate are  satisfied, the Company shall have no obligation to deliver to you any Shares.  (f) In the event the Withholding Obligation of the Company arises prior to the  delivery to you of Shares or it is determined after the delivery of Shares to you that the amount of  the Withholding Obligation was greater than the amount withheld by the Company, you agree to  indemnify and hold the Company harmless from any failure by the Company to withhold the  proper amount.  12. NO ADVICE REGARDING GRANT.  The Company is not providing any tax, legal or  financial advice, nor is the Company making any recommendations regarding your participation  in the Plan, or your acquisition or sale of the underlying Shares.  You are hereby advised to consult  with your own personal tax, financial and/or legal advisors regarding the consequences of  
 
 
   10.   accepting this Award and by signing the Grant Notice, you have agreed that you have done so or  knowingly and voluntarily declined to do so.  13. UNSECURED OBLIGATION.  Your Award is unfunded, and as a holder of a vested  Award, you shall be considered an unsecured creditor of the Company with respect to the  Company’s obligation, if any, to issue Shares pursuant to this Agreement.  You shall not have  voting or any other rights as a stockholder of the Company with respect to the Shares to be issued  pursuant to this Agreement until such Shares are issued to you pursuant to Section 7 of this  Agreement.   Upon such issuance, you will obtain full voting and other rights as a stockholder of  the Company.  Nothing contained in this Agreement, and no action taken pursuant to its provisions,  shall create or be construed to create a trust of any kind or a fiduciary relationship between you  and the Company or any other person.  14. OTHER DOCUMENTS.  You hereby acknowledge receipt or the right to receive a  document providing the information required by Rule 428(b)(1) promulgated under the Securities  Act, which includes the Plan prospectus.  In addition, you acknowledge receipt of the Company’s  policy on trading in Company securities permitting employees to sell Shares only during certain  “window” periods and the Company’s insider trading policy, in effect from time to time.    15. NOTICES; ELECTRONIC DELIVERY AND ACCEPTANCE.  Any notices provided for  in your Award or the Plan shall be given in writing and shall be deemed effectively given upon  receipt or, in the case of notices delivered by the Company to you, five (5) days after deposit in  the United States mail, postage prepaid, addressed to you at the last address you provided to the  Company.  Notwithstanding the foregoing, the Company may, in its sole discretion, decide to  deliver any documents related to participation in the Plan and this Award by electronic means or  to request your consent to participate in the Plan by electronic means.  You hereby consent to  receive such documents by electronic delivery and, if requested, to agree to participate in the Plan  through an on-line or electronic system established and maintained by the Company, the Agent or  another third party designated by the Company and agree notice shall be provided upon posting to  your electronic account held by the Company, the Agent or another third party designated by the  Company.  You hereby acknowledge that delivery, execution and acceptance of this or any other  such documents by electronic means constitutes valid and effective delivery, execution and  acceptance and shall be legally effective to create a valid and binding agreement.  16. CLAWBACK/RECOUPMENT.  The Award will be subject to recoupment, rescission,  payback, cancelation or other action, in each case, in accordance with (i) any clawback policy  adopted by the Company (whether such policy is adopted on or after the date of this Agreement or  required under applicable law) providing for the recovery of Awards, Shares, proceeds, or  payments to you in the event of fraud or as required by applicable law or governance considerations  or in other similar circumstances and (ii) any such other clawback, recovery or recoupment  provisions set forth in an individual written agreement between you and the Company.  No  recovery of compensation under such a clawback policy will be an event giving rise to your right  to resign for “good reason” or “constructive termination” (or similar term) under any plan of, or  agreement with, the Company.  
 
 
   11.   17. MISCELLANEOUS.  (a) The rights and obligations of the Company under your Award shall be  transferable by the Company to any one or more persons or entities, and all covenants and  agreements hereunder shall inure to the benefit of, and be enforceable by, the Company’s  successors and assigns.   (b) You agree upon request to execute any further documents or instruments  necessary or desirable in the sole determination of the Company to carry out the purposes or intent  of your Award.  (c) You acknowledge and agree that you have reviewed your Award in its  entirety, have had an opportunity to obtain the advice of counsel prior to executing and accepting  your Award, and fully understand all provisions of your Award.  (d) You acknowledge and agree that the Company shall not be liable for any  exchange rate fluctuation between your local currency and the United States Dollar that may affect  the value of your Award or of any amounts due to you pursuant to the settlement of the Award or  the subsequent sale of any Shares acquired upon settlement.  (e) This Agreement shall be subject to all applicable laws, rules, and  regulations, and to such approvals by any governmental agencies or national securities exchanges  as may be required.  (f) All obligations of the Company under the Plan and this Agreement shall be  binding on any successor to the Company, whether the existence of such successor is the result of  a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the  business and/or assets of the Company.  18. GOVERNING PLAN DOCUMENT.  Your Award is subject to all the provisions of the  Plan, the provisions of which are hereby made a part of your Award, and is further subject to all  interpretations, amendments, rules and regulations which may from time to time be promulgated  and adopted pursuant to the Plan.  Except as expressly provided herein, in the event of any conflict  between the provisions of your Award and those of the Plan, the provisions of the Plan shall  control.   19. ENTIRE AGREEMENT.  The Plan, this Agreement and the Grant Notice constitute  the entire agreement of the parties with respect to the subject matter hereof and supersede in their  entirety all prior undertakings and agreements of the Company and you with respect to the subject  matter hereof, with the exception of any arrangement that would provide for vesting acceleration  of this Award upon the terms and conditions set forth therein.    20. SEVERABILITY.  If all or any part of this Agreement or the Plan is declared by any  court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity shall  not invalidate any portion of this Agreement or the Plan not declared to be unlawful or invalid.  Any Section of this Agreement (or part of such a Section) so declared to be unlawful or invalid  shall, if possible, be construed in a manner which will give effect to the terms of such Section or  part of a Section to the fullest extent possible while remaining lawful and valid.  
 
 
   12.   21. DATA PRIVACY.  To participate in the Plan, you will need to review the  information provided in this Section and, where applicable, declare your consent to the  processing of personal data by the Company and third parties noted below.   (a) EEA+ Controller and Representative.  If you are based in the European  Union (“EU”), the European Economic Area, Switzerland or, if and when the United Kingdom  leaves the European Union, the United Kingdom (collectively “EEA+”), you should note that  the Company, with its registered address at 21823 30th Drive SE Bothell, Washington 98021,  United States of America, is the controller responsible for the processing of your personal data  in connection with the Agreement and the Plan. The Company’s representative in the EU is  Seagen Netherlands B.V., located at Evert van de Beekstraat 1, -140 1118CL Schiphol,  Netherlands with office phone: +31 207 99 15 60.  (b) Data Collection and Usage. In connection with the administration of the  Plan, the Company collects, processes, uses and transfers certain personally-identifiable  information about you, which may include your name, home address and telephone number,  email address, date of birth, social insurance, passport number or other identification number,  salary, nationality, job title, details of all Awards or any other entitlement to Shares awarded,  canceled, exercised, settled, vested, unvested or outstanding in your favor and additional similar  or related data, which the Company receives from you or the entity that employs you (“Personal  Data”).  Specifically, the Company collects, processes and uses Personal Data for the purposes  of performing its contractual obligations under this Agreement, implementing, administering  and managing your participation in the Plan and facilitating compliance with applicable tax  and securities law.   If you are based in the EEA+, the legal basis, where required, for the processing of Personal  Data by the Company is the necessity for the Company to (i) perform its contractual obligations  under this Agreement, (ii) comply with legal obligations established in the EEA+, and/or (iii)  pursue the legitimate interest of complying with legal obligations established outside of the  EEA+.    If you are based outside of the EEA+, the legal basis, where required, for the processing of Data  by the Company is your consent, as further described in (h) below.  (c) Stock Plan Administration Service Providers. The Company transfers  Personal Data to E*TRADE Corporate Financial Services, Inc., and E*TRADE Securities LLC  (collectively, “E*TRADE”) and certain of its affiliated companies and successors (the “Stock  Plan Provider”), an independent service provider, which assists the Company with the  implementation, administration and management of the Plan, including providing ancillary  services related to stock plan administration.  The Company may select a different service  provider or additional service providers and share Personal Data with such other provider  serving in a similar manner.  The processing of Personal Data will take place through both  electronic and non-electronic means. Personal Data will only be accessible by those individuals  requiring access to it for purposes of implementing, administering and operating the Plan,  including providing ancillary services related to stock plan administration.  You may be asked  to agree on separate terms and data processing practices with the Stock Plan Provider, with  such agreement being a condition to the ability to participate in the Plan.  
 
 
   13.   (d) International Data Transfers. The Company and the Stock Plan Provider  are based in the United States. The country where you live may have different data privacy laws  and protections than the United States. In particular, the United States does not have the same  level of protections for personal data as countries in the EEA+.  The European Commission  requires U.S. companies to protect personal data leaving the EEA+ by implementing safeguards  such as the Standard Contractual Clauses adopted by the EU Commission.   If you are based in the EEA+, Personal Data will be transferred from the EEA+ to the Company  and onward from the Company to the Stock Plan Provider, or if applicable, another service  provider, based on the EU Standard Contractual Clauses. You may request a copy of the  Standard Contractual Clauses by contacting dataprotection@seagen.com.   If you are based in a jurisdiction outside of the EEA+, Personal Data will be transferred from  your jurisdiction to the Company and onward from the Company to the Stock Plan Provider, or  if applicable, another service provider based on your consent, as further described in (h) below.  (e) Data Retention. The Company will use Personal Data only as long as  necessary to implement, administer and manage your participation in the Plan, or as required  to comply with legal or regulatory obligations, including tax and securities laws.  When the  Company no longer needs Personal Data for any of these purposes, the Company will remove it  from its systems.   (f) Voluntariness and Consequences of Consent Denial or Withdrawal.  Participation in the Plan is voluntary and you are providing the consents herein on a purely  voluntary basis. You may withdraw your consent at any time, with future effect and for any or  no reason. If you do not consent, or if you later seek to withdraw your consent, your salary from  or employment or service relationship with your employer will not be affected. The only  consequence of denying or withdrawing consent is that the Company would not be able to grant  Awards to you under the Plan or administer or maintain your participation in the Plan. If you  withdraw your consent, the Company will stop processing your Personal Data for the purposes  stated in Section (b) above unless to the extent necessary to comply with tax or other legal  obligations in connection with Awards granted before you withdrew your consent.  (g) Data Subject Rights. You may have a number of rights under data privacy  laws in your jurisdiction.  Subject to the conditions set out in the applicable law and depending  on where you are based, such rights may include the right to (i) request access to, or copies of,  Personal Data processed by the Company, (ii) rectification of incorrect Personal Data, (iii)  deletion of Personal Data, (iv) restrict the processing of Personal Data, (v) object to the  processing of Personal Data for legitimate interests, (vi) portability of Personal Data, (vii) lodge  complaints with competent authorities in your jurisdiction, and/or to (viii) receive a list with the  names and addresses of any potential recipients of Personal Data. To receive clarification  regarding these rights or to exercise these rights, you can contact dataprotection@seagen.com.  (h) Necessary Disclosure of Personal Data. You understand that providing  the Company with Personal Data is necessary for the performance of this Agreement and that  your refusal to provide Personal Data would make it impossible for the Company to perform its  contractual obligations and would affect your ability to participate in the Plan.  
 
 
   14.   (i) Declaration of Consent (if you are outside the EEA+). By clicking on the  “I accept” button on the Acknowledge Grant screen on the stock plan administration site, you  are declaring that you unambiguously consent to the collection, use and transfer, in electronic  or other form, of your Personal Data, as described above and in any other grant materials, by  and among, as applicable, the entity that employs you, the Company, any Affiliate and any  service provider involved in stock plan administration, including but not limited to the Stock  Plan Provider, for the exclusive purpose of implementing, administering and managing  your  participation in the Plan, including providing ancillary services related to stock plan  administration. You understand that you may, at any time, refuse or withdraw the consents  herein, in any case without cost, by contacting in writing the Seagen Inc. Director of Privacy  Law.  If you do not consent or later seek to revoke your consent, your employment status or  service with the entity that employs you will not be affected; the only consequence of refusing  or withdrawing consent is that the Company would not be able to grant the Award or any other  equity award to you or administer or maintain such awards.  Therefore, you understand that  refusing or withdrawing consent will affect your ability to participate in the Plan.  For more  information on the consequences of refusal to consent or withdrawal of consent, you should  contact the Company’s Stock Plan Administrator.  22. INSIDER TRADING RESTRICTIONS/MARKET ABUSE LAWS.  You acknowledge that,  depending on your country, you may be subject to insider trading restrictions and/or market abuse  laws, which may affect your ability to acquire or sell the Shares or rights to the Shares under the  Plan during such times as you are considered to have “inside information” regarding the Company  (as defined by the laws in your country).  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.  You acknowledge that it is your responsibility to comply with  any applicable restrictions, and you are advised to speak to your personal advisor on this matter.  23. FOREIGN ASSET/ACCOUNT AND TAX REPORTING, EXCHANGE CONTROLS.  Your  country may have certain foreign asset, account and/or tax reporting requirements and exchange  controls which may affect your ability to acquire or hold Shares under the Plan or cash received  from participating in the Plan (including from any dividends received or sale proceeds arising from  the sale of Shares) in a brokerage or bank account outside your country.  You understand that you  may be required to report such accounts, assets or transactions to the tax or other authorities in  your country.  You also may be required to repatriate sale proceeds or other funds received as a  result of participation in the Plan to your country through a designated bank or broker and/or within  a certain time after receipt.  In addition, you may be subject to tax payment and/or reporting  obligations in connection with any income realized under the Plan and/or from the sale of Shares.   You acknowledge that you are responsible for complying with all such requirements, and that you  should consult personal legal and tax advisors, as applicable, to ensure compliance.  24. WAIVER.  You acknowledge that a waiver by the Company of a breach of any  provision of this Agreement shall not operate or be construed as a waiver of any other provision  of this Agreement, or of any subsequent breach of this Agreement.  25. LANGUAGE. You acknowledge that you are sufficiently proficient in the English  language, or have consulted with an advisor who is sufficiently proficient in English, so as to allow  you to understand the terms and conditions of this Agreement.  If you have received this  
 
 
   15.   Agreement, or any other document related to this Award and/or the Plan translated into a language  other than English and if the meaning of the translated version is different than the English version,  the English version will control.    26. APPENDIX. Notwithstanding any provisions in this Agreement to the contrary, your  Award shall be subject to the additional terms and conditions for your country set forth in the  Appendix.  Moreover, if you transfer residence and/or employment to another country reflected in  the Appendix, the terms and conditions for such country will apply to you to the extent the  Company determines in its sole discretion, that the application of such terms and conditions is  necessary or advisable for legal or administrative reasons.  The Appendix constitutes part of this  Agreement.  27. GOVERNING LAW/VENUE.  The interpretation, performance and enforcement of  this Agreement will be governed by the law of the State of Delaware without regard to that state’s  conflicts of laws rules.  For purposes of any action, lawsuit or other proceedings brought due to  your participation in the Plan, relating to it, or arising from it, you hereby submit to and consent to  the sole and exclusive jurisdiction of the United States District Court for the Southern District of  New York (or should such court lack jurisdiction to hear such action, suit or proceeding, in a New  York state court in the County of New York), and no other courts, where this Award is granted  and/or to be performed.  28. IMPOSITION OF OTHER REQUIREMENTS.  The Company reserves the right to  impose other requirements on your participation in the Plan, and on any Shares acquired under the  Plan, to the extent the Company determines it is necessary or advisable for legal or administrative  reasons, and to require you to sign any additional agreements or undertakings that may be  necessary to accomplish the foregoing.  29. AMENDMENT.  This Agreement may not be modified, amended or terminated  except by an instrument in writing, signed by you and by a duly authorized representative of the  Company. Notwithstanding the foregoing, this Agreement may be amended solely by the  Administrator by a writing which specifically states that it is amending this Agreement, so long as  a copy of such amendment is delivered to you, and provided that no such amendment materially  adversely affecting your rights hereunder may be made without your written consent, except as  otherwise provided in the Plan. Without limiting the foregoing, the Administrator reserves the right  to change, by written notice to you and without your prior written consent, the provisions of this  Agreement in any way it may deem necessary or advisable to carry out the purpose of the grant to  facilitate compliance with applicable laws or regulations or any future law, regulation, ruling, or  judicial decision.  
 
 
   16.   SEAGEN INC.    APPENDIX TO GLOBAL STOCK UNIT AGREEMENT    Capitalized terms used but not defined in this Appendix have the meanings set forth in the Plan  and/or in the Agreement.    Terms and Conditions     This Appendix includes additional terms and conditions that govern this Award if you reside  and/or work in one of the countries listed below.      If you are a citizen or resident of a country other than the one in which the you are currently  residing and/or working, transfer employment and/or residency to another country after the Award  is granted, or are considered a resident of another country for local law purposes, the Company  shall, in its discretion, determine to what extent the terms and conditions herein will apply to you.    Notifications     This Appendix also includes information regarding exchange controls and certain other issues of  which you should be aware with respect to your participation in the Plan.  The information is based  on the securities, exchange control and other laws in effect in the respective countries as of July  2022.  Such laws are often complex and change frequently.  As a result, the Company strongly  recommends that you not rely on the information in this Appendix as the only source of  information relating to the consequences of your participation in the Plan because the information  may be out of date at the time that you acquire Shares or sell Shares acquired under the Plan.    In addition, the information contained herein is general in nature and may not apply to your  particular situation and the Company is not in a position to assure you of any particular result.   Accordingly, you acknowledge that you should seek appropriate professional advice as to how the  relevant laws in your country may apply to your situation.      Finally, you acknowledge that if you are a citizen or resident of a country other than the one in  which you are currently residing and/or working, transfer employment and/or residency to another  country after the Award is granted, or are considered a resident of another country for local law  purposes, the information contained herein may not be applicable to you.     
 
 
   17.   AUSTRIA    Notifications    Exchange Control Information.  If you hold securities (including Shares acquired under the Plan)  or cash (including proceeds from the sale of Shares) outside of Austria, you may be subject to  reporting obligations to the Austrian National Bank.  If the value of the Shares meets or exceeds a  certain threshold, you must report the securities held on a quarterly basis to the Austrian National  Bank as of the last day of the quarter, on or before the 15th day of the month following the end of  the calendar quarter.  In all other cases, an annual reporting obligation applies and the report has  to be filed as of December 31 on or before January 31 of the following year using the form P2.   Where the cash amount held outside of Austria meets or exceeds a certain threshold, monthly  reporting obligations apply as explained in the next paragraph.      In connection with the sale of Shares, or receipt any cash dividends, you may have exchange  control obligations if you hold the cash proceeds outside of Austria. If the transaction volume of  all of your accounts abroad meets or exceeds a certain threshold, you must report to the Austrian  National Bank the movements and balances of all accounts on a monthly basis, as of the last day  of the month, on or before the 15th day of the following month, on the prescribed form (Meldungen  SI-Forderungen und/oder SI-Verpflichtungen).    BELGIUM    Notifications     Foreign Asset / Account Reporting.  Belgian residents are required to report any security (e.g.,  Shares acquired under the Plan) or bank account established outside of Belgium on their annual  tax return.  In a separate report, Belgian residents are also required to provide the National Bank  of Belgium with certain details regarding such foreign accounts (including the account number,  bank name and country in which any such account was opened).  The forms to complete this report  are available on the website of the National Bank of Belgium.  Belgian residents should consult  with their personal tax advisors to determine their personal reporting obligations.    Annual Securities Accounts Tax. If the value of securities held in a Belgian or foreign securities  account exceeds €1 million, a new “annual securities account tax” applies. Belgian residents  should consult with their personal tax advisor regarding the new tax.    CANADA    Terms and Conditions    Settlement of Restricted Stock Units.  Notwithstanding any terms or conditions of the Plan or  the Agreement to the contrary, Restricted Stock Units will be settled in shares of Common Stock  only, not cash.    
 
 
   18.   IMPORTANT ACKNOWLEDGMENT.  In accepting this Award, you acknowledge that you  have received a copy of the Plan and the Agreement and reviewed the Plan and the  Agreement in their entirety and fully understand and accept all provisions of the Plan and  the Agreement.    YOU FURTHER SPECIFICALLY ACKNOWLEDGE THAT YOU HAVE READ AND  EXPRESSLY ACCEPT SECTION 2 (VESTING) OF THIS AGREEMENT, AS AMENDED  BY THE FOLLOWING APPENDIX PROVISION:    Termination of Employment.  This provision replaces Section 2(c) of the Agreement:    For purposes of the Stock Unit Award, and notwithstanding anything to the contrary in the  Agreement or the Plan, you will be deemed to experience a Termination of Employment (and your  right to vest in the Restricted Stock Units and receive shares of Common Stock under the Plan, if  any, will terminate effective as of) the date that is the earlier of:     (1) the date you cease to be an Employee or Consultant;     (2) the date on which you receive written notice of termination; or     (3) the date you are no longer actively providing services to the Company or any other  Affiliate (except where such inactive service results from a leave of absence that is required  to be provided to you under Applicable Law), and in each case: (i) regardless of the reason  of such cessation or termination; and (ii) whether or not such cessation or termination is  (or is later found to be) unlawful, or invalid, or in breach of Applicable Laws (including,  but not limited to, employment-related statutory and/or common and/or civil law, or other  laws or rules in the jurisdiction where you are providing services), or in breach of the terms  of your employment or service agreement, if any.      For clarity, in each case, such date will be determined regardless of (and will not be  extended by) any notice period or severance period or period of “garden leave” or period  of reasonable notice or period covered by compensation/indemnity/damages in lieu of  reasonable notice, or any similar period to which you claim to be entitled, whether  mandated under Applicable Laws (including, but not limited to, employment-related  statutory law and/or common law and/or civil law), or claimed by you under the terms of  your employment or service agreement (if any), or claimed by you on any other basis  whatsoever.  The Board or its delegate shall have exclusive discretion to determine when  you cease to be an Employee or Consultant or are no longer actively employed for purposes  your participation in the Plan (including whether you may still be considered to be  providing services while on a leave of absence that is not required to be provided to you  under Applicable Law).      Data Privacy.  This provision supplements Section 21 of the Agreement:    
 
 
   19.   You hereby authorize the Company and the Company’s representatives to discuss with and obtain  all relevant information from all personnel, professional or not, involved in the administration and  operation of the Plan.  You further authorize the Company, your employer and/or any other  Affiliate to disclose and discuss such information with their advisors.  You also authorize the  Company, your employer and/or any other Affiliate to record such information and to keep such  information in your employee file.    Notifications    Securities Law Information.  You understand that you are permitted to sell shares of Common  Stock acquired pursuant to the Plan through the designated broker appointed under the Plan, if  any, provided the sale of the shares acquired pursuant to the Plan takes place outside of Canada  through the facilities of a stock exchange on which the shares are listed, and the Company is not a  reporting issuer in any jurisdiction of Canada at the time of sale.    Foreign Asset/Account Reporting Information.  Specified Foreign property, including Stock  Units, shares of Common Stock acquired under the Plan and other rights to receive shares of a  non-Canadian company held by a Canadian resident must generally be reported annually on a  Form T1135 (Foreign Income Verification Statement) if the total cost of the specified foreign  property exceeds C$100,000 at any time during the year.  Thus, if the C$100,000 cost threshold is  exceeded by other foreign specified property held by the individual, the award of Restricted Stock  Units must be reported (generally at a nil cost).  For purposes of such reporting, shares of Common  Stock acquired under the Plan may be reported at their adjusted cost basis.  The adjusted cost basis  of a share is generally equal to the fair market value of such share at the time of acquisition;  however, if you own other shares of Common Stock (e.g., acquired under other circumstances or  at another time), the adjusted cost basis may have to be averaged with the adjusted cost bases of  the other shares of Common Stock.  You should consult with your personal tax advisor to  determine your reporting requirements.    DENMARK    Terms and Conditions    Danish Stock Option Act.  By accepting this Award, you acknowledge that you received an  Employer Statement, translated into Danish, which is being provided to comply with the Danish  Stock Option Act.      Notifications    Foreign Asset/Account Reporting Information.  If you establish an account holding shares or  cash outside of Denmark, you must report the account to the Danish Tax Administration.  The form  which should be used to make the report can be obtained from a local bank.     
 
 
   20.   SPECIAL NOTICE FOR EMPLOYEES IN DENMARK  EMPLOYER STATEMENT    Pursuant to Section 3(1) of the Act on Stock Options in employment relations, as amended January  1, 2019 (the “Stock Option Act”), you are entitled to receive the following information regarding  the restricted stock units granted to you by Seagen Inc. (the “Company”) under the Seagen Inc.  Amended and Restated 2007 Equity Incentive Plan (the “Plan”) in a written statement.    This statement contains information applicable to your participation in the Plan, as required under  the Stock Option Act, while the other terms and conditions of your restricted stock units (“Stock  Units”) are described in detail in the Plan and the Stock Unit Award Agreement (the  “Agreement”), both of which have been made available to you.  Capitalized terms used but not  defined herein shall have the same meanings given to them in the Plan or the Agreement, as  applicable.    Section 1 of the Stock Option Act provides that the Stock Option Act only applies to employees.  Employees are defined in section 2 of the Stock Option Act as persons who receive remuneration  for their personal services in an employment relationship. Persons, including managers, who are  not regarded as employees under the Stock Option Act, will not be subject to the Stock Option  Act.  If you are not an employee within the meaning of the Stock Option Act, the Company  therefore has no obligation to issue an employer information statement to you and you will not be  able to rely on this statement for legal purposes, since only the terms and conditions set out in the  Plan apply.    1. Date of grant    The date of grant of your Stock Units is the date that the Board or its delegates approved a  grant for you and determined it would be effective, which is set forth in the Agreement.    2. Terms or conditions for Stock Unit grant     The grant of Stock Units under the Plan is made at the sole discretion of the Company.   Employees, Directors and Consultants of the Company and its Affiliates, are eligible to  receive grants under the Plan.  The Board has broad discretion to determine who will receive  Stock Units and to set the terms and conditions of the Stock Units.  The Company may  decide, in its sole discretion, not to make any grants of Stock Units to you in the future.   Under the terms of the Plan and the Agreement, you have no entitlement or claim to receive  future grants of Stock Units.    3. Vesting date or period      The Stock Units will vest over a period of time (as set forth in the Agreement), subject to  your continuous service through the applicable vesting date and other conditions set forth in  the Plan and Agreement, and subject to Section 5 of this statement.    4. Exercise Price  
 
 
   21.      No exercise price is payable upon the conversion of your Stock Units into shares of Common  Stock in accordance with the vesting and settlement schedule described in the Agreement.    5. Your rights upon termination of employment    Subject to the provisions below regarding accelerated vesting in certain circumstances,  your eligibility to receive any vesting of this Award will cease upon your Termination of  Employment and the Stock Units credited to the Account that were not vested on the date  of such termination will be forfeited at no cost to the Company and you will have no further  right, title or interest in or to such Award or the shares of Common Stock to be issued in  respect of such portion of the Award.   In the event of your Termination of Employment as a result of your Disability, the vesting  of your Award shall accelerate such that your Award shall become vested as to an  additional twelve (12) months, effective as of the date of such Termination of Employment,  to the extent that your Award is outstanding on such date.  In the event of your Termination of Employment as a result of your death, your Award  (and all other Seagen Inc. stock units granted to you that do not have performance or  milestone vesting conditions) shall accelerate and vest in full, effective as of the date of  such Termination of Employment, to the extent that your Award is outstanding on such  date.  6.  Financial aspects of participating in the Plan    The grant of Stock Units has no immediate financial consequences for you.  The value of  the Stock Units is not taken into account when calculating holiday allowances, pension  contributions or other statutory consideration calculated on the basis of salary.    Shares of stock are financial instruments and investing in stock will always have financial  risk.  The future value of Company shares is unknown and cannot be predicted with  certainty.    Seagen Inc.  21823 - 30th Drive S.E.  Bothell, Washington 98021  U.S.A.       
 
 
   22.   SÆRLIG MEDDELELSE TIL MEDARBEJDERE I DANMARK  ARBEJDSGIVERERKLÆRING     I henhold til § 3, stk. 1, i lov om brug af køberet eller tegningsret m.v. i ansættelsesforhold som  ændret 1. januar 2019 ("Aktieoptionsloven") er du berettiget til i en skriftlig erklæring at modtage  følgende oplysninger om de betingede aktier, som du modtager fra Seagen Inc. (“Selskabet”) i  henhold til Seagen Inc.'s "Amended and Restated 2007 Equity Incentive Plan" ("Ordningen").    Denne erklæring indeholder de oplysninger, der i henhold til Aktieoptionsloven gælder for din  deltagelse i Ordningen, mens de øvrige vilkår og betingelser for de betingede aktier ("Betingede  Aktier") er nærmere beskrevet i Ordningen og i Aktietildelingsaftalen ("Aftalen"), som begge er  udleveret til dig.  Begreber, der står med stort begyndelsesbogstav i denne arbejdsgivererklæring,  men som ikke er defineret heri, har den i Ordningen eller Aftalen anførte betydning.    I henhold til Aktieoptionslovens § 1 finder loven kun anvendelse for lønmodtagere. Lønmodtagere  er defineret i Aktieoptionslovens § 2 som personer, der modtager vederlag for personligt arbejde i  tjenesteforhold. Personer, herunder direktører, som ikke anses for at være lønmodtagere i  Aktieoptionslovens forstand, er ikke omfattet af Aktieoptionsloven.  Hvis du ikke er lønmodtager  i Aktieoptionslovens forstand, er Selskabet derfor ikke forpligtet til at udstede en  arbejdsgivererklæring til dig, og du vil ikke i juridisk henseende kunne henholde dig til denne  arbejdsgivererklæring, da det alene er bestemmelserne i Ordningen, der er gældende.    1. Tildelingstidspunkt    Tidspunktet for tildeling af de Betingede Aktier er den dag, hvor Bestyrelsen eller en  repræsentant for Bestyrelsen godkendte tildelingen og besluttede, at den skulle træde i kraft.  Tidspunktet fremgår af Aftalen.    2. Vilkår og betingelser for tildelingen af Betingede Aktier     Tildelingen af Betingede Aktier i henhold til Ordningen sker efter Selskabets eget skøn.   Tildeling kan i henhold til Ordningen ske til Medarbejdere, Bestyrelsesmedlemmer og  Konsulenter i Selskabet og dets Tilknyttede Selskaber.   Bestyrelsen har vide beføjelser til  at bestemme, hvem der skal modtage Betingede Aktier og på hvilke vilkår.  Selskabet kan  frit vælge fremover ikke at tildele din nogen Betingede Aktier.  I henhold til bestemmelserne  i Ordningen og Aftalen har du ikke hverken ret til eller krav på fremover at få tildelt  Betingede Aktier.    3. Modningsdato eller -periode      De Betingede Aktier modnes over en periode (som anført i Aftalen), forudsat at du fortsat er  ansat på modningsdatoen, og at de øvrige betingelser i Ordningen og i Aftalen er opfyldt,  dog med forbehold for pkt. 5 nedenfor.    4. Udnyttelseskurs    
 
 
   23.    Der skal ikke betales nogen udnyttelseskurs i forbindelse med konverteringen af de  Betingede Aktier til Ordinære Aktier i overensstemmelse med den i Aftalen beskrevne  modnings- og afregningsplan.    5. Din retsstilling i forbindelse med fratræden    Med forbehold for bestemmelserne nedenfor vedrørende fremskyndet modning ophører  modningen ved din Fratræden, og de Betingede Aktier på din Konto, som ikke er modnet  på fratrædelsestidspunktet, bortfalder uden omkostninger for Selskabet, og du vil ikke  længere have ret eller adkomst til Tildelingen eller de Ordinære Aktier, der udstedes i  relation til denne del af Tildelingen.   Såfremt du Fratræder, fordi du eller bliver Uarbejdsdygtig, fremskyndes modningen af  Tildelingen, således at Tildelingen modnes, som om du havde været ansat i en periode på  yderligere tolv (12) måneder fra Fratrædelsesdatoen, såfremt Tildelingen endnu ikke er  modnet på dette tidspunkt.  Såfremt du Fratræder, fordi du død, optjeningen er fuldt fremskyndet for Allokeringen (og  alle andre Seagen Inc.-aktieenheder, der er tildelt dig, og som ikke har præstations- eller  milepælsvilkår), således at Tildelingen modnes, såfremt Tildelingen endnu ikke er modnet  på dette tidspunkt.  6.  Økonomiske aspekter ved deltagelse i Ordningen    Tildelingen af Betingede Aktier har ingen umiddelbare økonomiske konsekvenser for dig.   Værdien af de Betingede Aktier indgår ikke i beregningen af feriepenge, pensionsbidrag  eller øvrige lovpligtige, vederlagsafhængige ydelser.    Aktier er finansielle instrumenter, og investering i aktier vil altid være forbundet med en  økonomisk risiko.  Den fremtidige værdi af Selskabets aktier kendes ikke og kan ikke  forudsiges med sikkerhed.    Seagen Inc.  21823 - 30th Drive S.E.  Bothell, Washington 98021  U.S.A.     
 
 
   24.   FINLAND    There are no country-specific provisions.    FRANCE    Terms and Conditions    Non-Qualified Award. The Stock Units are not granted as a “French-qualified” Award and are  not intended to qualify for the special tax and social security treatment applicable to shares granted  for no consideration under Sections L. 225-197-1 to L. 225-197-5 and Sections L. 22-10-59 and  L. 22-10-60 of the French Commercial Code, as amended.    Consent to Receive Information in English.  By accepting this Award, you confirm having read  and understood the Plan and the Agreement which were provided in the English language.  You  accept the terms of those documents accordingly.    Consentement Relatif à la Langue Utilisée.  En acceptant l’attribution, vous confirmez avoir lu et  compris le Plan et ce Contrat, qui ont été communiqués en langue anglaise.  Vous acceptez les  termes de ces documents en connaissance de cause.    Notifications    Foreign Asset/Account Reporting Information.  If you hold cash or shares of Common Stock  outside of France or maintain a foreign bank or brokerage account (including accounts that were  opened and closed during the tax year), you are required to report such assets and accounts to the  French tax authorities on an annual basis on a specified form together with your income tax return.   Failure to complete this reporting can trigger significant penalties.    GERMANY    Notifications    Exchange Control Information.  Cross-border payments in excess of €12,500 must be reported  monthly to the German Federal Bank (Bundesbank).  In case of payments in connection with  securities (including proceeds realized upon the sale of shares of Common Stock or the receipt of  dividends, if any), the report must be made by the 5th day of the month following the month in  which the payment was received.  The report must be filed electronically and the form of report  (“Allgemeine Meldeportal Statistik”) can be accessed via the Bundesbank's website  (www.bundesbank.de), in both German and English.  You are responsible for making this report.    Foreign Asset/Account Reporting Information.  If your acquisition of shares of Common Stock  acquired under the Plan leads to a so-called qualified participation at any point during the calendar  year, you may need to report the acquisition when you file your tax return for the relevant year.  A  qualified participation is attained if (i) the value of the shares of Common Stock exceeds €150,000,  or (ii) in the unlikely event that you hold shares of Common Stock exceeding 10% of the  
 
 
   25.   Company’s share capital. However, if the shares of Common Stock are listed on a recognized U.S.  stock exchange and you own less than 1% of the Company, this requirement will not apply to you.    ITALY    Terms and Conditions    Plan Document Acknowledgment.  In accepting this Award, you acknowledge that you have  received a copy of the Plan and the Agreement and reviewed the Plan and the Agreement in their  entirety and fully understand and accept all provisions of the Plan and the Agreement.    You further acknowledge that you have read and specifically and expressly approve the following  sections of the Agreement: Section 10. Nature of Award; Section 11. Tax Obligations; Section 12.  No Advice Regarding Grant; Section 20. Severability; Section 21. Data Privacy; Section 25.  Language; Section 27. Governing Law/Venue; and Section 28. Imposition of Other Requirements.    Undertaking to Provide Notice of Sale.  In accepting this Award, you undertake to notify the  Employer, in writing on a Notice of Sale substantially in the form as attached hereto as Exhibit A,  within fifteen (15) days of any sale or disposal of Seagen Inc. shares acquired under the Plan which  occurs within three (3) years of the date the shares were issued to you and which triggers, pursuant  to art. 51, par. 2, letter g) of Presidential Decree no. 917/1986, the taxation as employment income  at vesting (i.e., the fair market value of the shares on the date of vesting) previously exempted.      Notifications    Foreign Asset/Account Reporting Information.  If you are an Italian resident and at any time  during the fiscal year hold investments or financial assets outside of Italy (e.g., cash, shares of  Common Stock) which may generate income taxable in Italy (or if you are the beneficial owner of  such an investment or asset, even if you do not directly hold the investment or asset under Italian  money laundering provisions), you are required to report such investments or assets on your annual  tax return for such fiscal year (on UNICO Form, RW Schedule) or on a special form if you are not  required to file a tax return.    Foreign Financial Assets Tax.  The fair market value of any shares of Common Stock held  outside of Italy is subject to a foreign assets tax.  Financial assets include shares of Common Stock  acquired under the Plan.  The taxable amount will be the fair market value of the financial assets  assessed at the end of the calendar year.  You should consult with your personal tax advisor about  the foreign financial assets tax.    NETHERLANDS    There are no country-specific provisions.    NORWAY    There are no country-specific provisions.  
 
 
   26.   PORTUGAL    Terms and Conditions    Consent to Receive Information in English.  You hereby expressly declare that you have full  knowledge of the English language and have read, understood and fully accepted and agreed with  the terms and conditions established in the Plan and the Agreement.    Conhecimento da Lingua. Contratado, pelo presente instrumento, declara expressamente que  tem pleno conhecimento da língua inglesa e que leu, compreendeu e livremente aceitou e  concordou com os termos e condições estabelecidas no Plano e no Acordo.    Notifications    Exchange Control Information.  If you receive shares of Common Stock upon vesting and  settlement of the Award, the acquisition of shares of Common Stock should be reported to the  Banco de Portugal for statistical purposes. If shares of Common Stock are deposited with a  commercial bank or financial intermediary in Portugal, such bank or financial intermediary will  submit the report on your behalf. If the shares of Common Stock are not deposited with a  commercial bank or financial intermediary in Portugal, you are responsible for submitting the  report to the Banco de Portugal.    PUERTO RICO    There are no country-specific provisions.    SPAIN    Terms and Conditions    Labor Law Acknowledgment.  The following provisions supplement Section 10 of the  Agreement:    By accepting this Award, you agree to participation in the Plan and acknowledge that you have  received a copy of the Plan.    You understand and agree that, except as otherwise provided in the Agreement, you will forfeit  any Stock Units in the event of your Termination of Employment by reason of, but not limited to,  resignation, disciplinary dismissal adjudged to be with cause, disciplinary dismissal adjudged or  recognized to be without cause (i.e., subject to a “despido improcedente,” individual or collective  dismissal on objective grounds, whether adjudged or recognized to be with or without cause,  material modification of the terms of employment under Article 41 of the Workers’ Statute,  relocation under Article 40 of the Workers’ Statute, Article 50 of the Workers’ Statute, unilateral  withdrawal by the Service Recipient and  under Article 10.3 of the Royal Decree 1382/1985.     Furthermore, you understand that the Company has unilaterally, gratuitously and discretionally  
 
 
   27.   decided to grant Stock Units under the Plan to individuals who are employees of the Company or  its Affiliates throughout the world.  The decision is a limited decision that is entered into upon the  express assumption and condition that any grant will not economically or otherwise bind the  Company or any Affiliates on an ongoing basis except as set forth under the terms of the Plan and  the Agreement.  Consequently, you understand that any Award is given on the assumption and  condition that it shall not become a part of any employment contract (either with the Company or  any Affiliates) and shall not be considered a mandatory benefit, salary for any purposes (including  severance compensation) or any other right whatsoever.  Further, you understand and freely accept  that there is no guarantee that any benefit whatsoever shall arise from any gratuitous and  discretionary grant since the future value of the Stock Units and shares of Common Stock is  unknown and unpredictable and you may forfeit the Stock Units if your Termination of  Employment occurs prior to vesting.  In addition, you understand that this Award would not be  made but for the assumptions and conditions referred to above; thus, you understand, acknowledge  and freely accept that should any or all of the assumptions be mistaken or should any of the  conditions not be met for any reason, then this Award shall be null and void.     Notifications    Exchange Control Information.  The acquisition, ownership and sale of shares of Common Stock  under the Plan must be declared for statistical purposes to the Spanish Dirección General de  Comercio e Inversiones (the “DGCI”), the Bureau for Commerce and Investments, which is a  department of the Ministry of Industry, Tourism and Commerce.  Generally, the declaration must  be made in January for shares of Common Stock owned as of December 31 of the prior year and/or  shares of Common Stock acquired or disposed of during the prior year; however, if the value of  shares of Common Stock acquired or disposed of or the amount of the sale proceeds exceeds  €1,502,530 (or if you hold 10% or more of the share capital of the Company), the declaration must  be filed within one month of the acquisition or disposition, as applicable.    In addition, you may be required to electronically declare to the Bank of Spain any foreign  accounts (including brokerage accounts held abroad), any foreign instruments (including shares of  Common Stock acquired under the Plan), and any transactions with non-Spanish residents  (including any payments of shares of Common Stock made pursuant to the Plan), depending on  the balances in such accounts together with the value of such instruments as of December 31 of  the relevant year, or the volume of transactions with non-Spanish residents during the relevant  year.    Foreign Asset/Account Reporting Information.  To the extent that you hold rights or assets  (i.e., cash or shares of Common Stock held in a bank or brokerage account) outside Spain with a  value in excess of €50,000 per type of right or asset (e.g., shares of Common Stock, cash, etc.) as  of December 31 each year, you are required to report information on such rights and assets on  your tax return for such year. After such rights or assets are initially reported, the reporting  obligation will only apply for subsequent years if the value of any previously-reported rights or  assets increases by more than €20,000.  You should consult with your personal tax and legal  advisors to ensure that you are properly complying with your reporting obligations.    Securities Law Information.  No “offer of securities to the public,” as defined under Spanish law,  
 
 
   28.   has taken place or will take place in the Spanish territory in connection with the grant of this  Award. The Agreement has not been nor will it be registered with the Comisión Nacional del  Mercado de Valores, and does not constitute a public offering prospectus.    SWEDEN    There are no country-specific provisions.    SWITZERLAND    Terms and Conditions    Grant of the Award.  The Award granted to a Swiss Participant is a voluntary gratuity  (Gratifikation) as determined at the Company's sole discretion which the Participant has no  entitlement to and which does not constitute an entitlement of the Participant for a grant of further  Awards in the future.     Language Acknowledgement. You confirm having read and understood the documents relating  to the Plan, including the Agreement, including this Appendix and all terms and conditions  included therein, which were provided in the English language only. You confirm having sufficient  language capabilities to understand these terms and conditions in full.    Du bestätigst, dass du den Plan sowie die dazugehörigen Dokumente, inklusive der Vereinbarung,  mit all den darin enthaltenen Bedingungen und Voraussetzungen, welche in englischer Sprache  verfasst sind, gelesen und verstanden hast. Du bestätigst dass Deine Sprachkenntnisse genügend  sind, um die Bedingungen und Voraussetzungen zu verstehen.    Notifications    Securities Law Information.  Neither the Agreement nor any other materials relating to the  Award (i) constitutes a prospectus according to articles 35 et seq. of the Swiss Federal Act on  Financial Services (“FinSA”) (ii) may be publicly distributed or otherwise made publicly available  in Switzerland to any person other than an employee of the Company or (iii) has been filed with  approved or supervised by any Swiss reviewing body according to article 51 FinSA or any Swiss  regulatory authority, including the Swiss Financial Market Supervisory Authority FINMA.     UNITED KINGDOM    Terms and Conditions    Tax Obligations.  The following provision supplements Section 11 of the Agreement:     Without limitation to Section 11 of the Agreement, you agree that you are liable for all Tax-Related  Items and hereby covenant to pay all such Tax-Related Items, as and when requested by the  Company or your employer or by Her Majesty’s Revenue and Customs (“HMRC”) (or any other  tax authority or any other relevant authority).  You also agree to indemnify and keep indemnified  
 
 
   29.   the Company and your employer against any Tax-Related Items that they are required to pay or  withhold or have paid or will pay to HMRC (or any other tax authority or any other relevant  authority) on your behalf.    Notwithstanding the foregoing, if you are a director or an executive officer of the Company (within  the meaning of such terms for purposes of Section 13(k) of the Exchange Act), you acknowledge  that you may not be able to indemnify the Company or your employer for the amount of any  income tax not collected from or paid by you, as it may be considered a loan.  In this case, the  amount of any income tax not collected within 90 days of the end of the U.K. tax year in which  the event giving rise to the Tax-Related Item(s) occurs may constitute an additional benefit to you  on which additional income tax and National Insurance contributions (“NICs”) may be payable.   You will be responsible for reporting and paying any income tax due on this additional benefit  directly to HMRC under the self-assessment regime and for reimbursing the Company or your  employer (as appropriate) for the value of any employee NICs due on this additional benefit, which  the Company or your employer may recover from you by any of the means referred to in the Plan  or Section 11 of the Agreement.     NIC Joint Election.  As a condition of your participation in the Plan and the vesting and settlement  of the Award or receipt of any benefit in connection with the Award, you agree to accept any  liability for secondary Class 1 NICs that may be payable by the Company or your employer (or  any successor to the Company or your employer) in connection with the Award and any event  giving rise to Tax-Related Items (the “Employer’s Liability”).  Without prejudice to the foregoing,  you agree to enter into the following joint election with the Company, the form of such joint  election being formally approved by HMRC (the “Joint Election”), and any other required consent  or elections.  You further agree to enter into such other Joint Elections as may be required between  you and any successor to the Company and/or your employer for the purpose of continuing the  effectiveness of the Joint Election.  You further agree that the Company and/or your employer may  collect the Employer’s Liability from you by any of the means set forth in Section 11 of the  Agreement.    If you do not enter into the Joint Election prior to the vesting of the Award or any other event  giving rise to Tax-Related Items, you will not be entitled to vest in the Award and receive shares  of Common Stock (or receive any other benefit in connection with the Award) unless and until  you enter into the Joint Election, and no shares of Common Stock or other benefit will be issued  to you under the Plan, without any liability to the Company, your employer or any other service  recipient.   
 
 
   30.   Note to UK Participants   in the Seagen Inc. Amended and Restated 2007 Equity Incentive Plan    Important Note on the Election to Transfer Employer NICs     If you are liable for National Insurance contributions (“NICs”) in the UK in connection with your  participation in the Seagen Inc. Amended and Restated 2007 Equity Incentive Plan (the "Plan")  and as a condition of your participation in the Plan, you are required to enter into an Election to  transfer to you any liability for employer’s NICs that may arise in connection with your  participation in the Plan.     By entering into the Election:   you agree that any employer’s NICs liability that may arise in connection with your  participation in the Plan will be transferred to you;    you authorise your employer to recover an amount sufficient to cover this liability by  such methods including, but not limited to, deductions from your salary or other  payments due or the sale of sufficient shares acquired pursuant to your awards.    By signing this Election, you are agreeing to be bound by the terms of the Election.     Please read the Election carefully.     Please print and keep a copy of the Election for your records.    
 
 
   31.   SEAGEN INC.  AMENDED AND RESTATED  2007 EQUITY INCENTIVE PLAN      Election To Transfer the Employer’s National Insurance Liability to the Employee    This Election is between:    A. The individual who has obtained authorised access to this Election (the “Employee”), who  is employed by one of the employing companies listed in the attached schedule (the  “Employer”) and who is eligible to receive stock options, restricted stock units and  performance-based restricted stock units (“Awards”) pursuant to the Seagen Inc. Amended  and Restated 2007 Equity Incentive Plan (the “Plan”), and    B. Seagen Inc., 21717 30th Dr SE, Bothell, Washington 98021 USA (the “Company”), which  may grant Awards under the Plan and is entering into this Election on behalf of the  Employer.    1. Introduction    1.1 This Election relates to all Awards granted to the Employee under the Plan on or after 1  January 2020 up to the termination date of the Plan.    1.2 In this Election the following words and phrases have the following meanings:    (a) “Chargeable Event” means any event giving rise to Relevant Employment Income.    (b) “ITEPA” means the Income Tax (Earnings and Pensions) Act 2003.    (c) “Relevant Employment Income” from Awards on which Employer’s National Insurance  Contributions become due is defined as:    (i) an amount that counts as employment income of the earner under section 426 ITEPA  (restricted securities: charge on certain post-acquisition events);    (ii) an amount that counts as employment income of the earner under section 438 of ITEPA  (convertible securities: charge on certain post-acquisition events); or    (iii)any gain that is treated as remuneration derived from the earner’s employment by virtue of  section 4(4)(a) SSCBA, including without limitation:    (A) the acquisition of securities pursuant to Awards (within the meaning of section  477(3)(a) of ITEPA);   
 
 
   32.     (B) the assignment or release of the Awards in return for consideration (within the  meaning of section 477(3)(b) of ITEPA); and    (C) the receipt of a benefit in connection with the Awards other than a benefit within (i)  or (ii) above (within the meaning of section 477(3)(c) of ITEPA).    (d) “SSCBA” means the Social Security Contributions and Benefits Act 1992.    1.3 This Election relates to the employer’s secondary Class 1 National Insurance Contributions  (the “Employer’s Liability”) which may arise in respect of Relevant Employment Income in  respect of the Awards pursuant to section 4(4)(a) and/or paragraph 3B(1A) of Schedule 1 of the  SSCBA.     1.4 This Election does not apply in relation to any liability, or any part of any liability, arising as  a result of regulations being given retrospective effect by virtue of section 4B(2) of either the  SSCBA, or the Social Security Contributions and Benefits (Northern Ireland) Act 1992.    1.5 This Election does not apply to the extent that it relates to relevant employment income  which is employment income of the earner by virtue of Chapter 3A of Part VII of ITEPA  (employment income: securities with artificially depressed market value).    2. The Election    The Employee and the Company jointly elect that the entire liability of the Employer to  pay the Employer’s Liability that arises on any Relevant Employment Income is hereby  transferred to the Employee.  The Employee understands that, by signing or electronically  accepting this Election, he or she will become personally liable for the Employer’s Liability  covered by this Election. This Election is made in accordance with paragraph 3B(1) of  Schedule 1 to SSCBA.    3. Payment of the Employer’s Liability    3.1 The Employee hereby authorises the Company and/or the Employer to collect the  Employer’s Liability in respect of any Relevant Employment Income from the Employee at any  time after the Chargeable Event:    (i) by deduction from salary or any other payment payable to the Employee at any time  on or after the date of the Chargeable Event; and/or     (ii) directly from the Employee by payment in cash or cleared funds; and/or    (iii) by arranging, on behalf of the Employee, for the sale of some of the securities which  the Employee is entitled to receive in respect of the Awards; and/or    (iv) by any other means specified in the applicable award agreement.  
 
 
   33.     3.2 The Company hereby reserves for itself and the Employer the right to withhold the transfer  of any securities to the Employee in respect of the Awards until full payment of the Employer’s  Liability is received.     3.3 The Company agrees to procure the remittance by the Employer of the Employer’s Liability  to HM Revenue & Customs on behalf of the Employee within 14 days after the end of the UK  tax month during which the Chargeable Event occurs (or within 17 days after the end of the UK  tax month during which the Chargeable Event occurs, if payments are made electronically).    4. Duration of Election    4.1 The Employee and the Company agree to be bound by the terms of this Election regardless of  whether the Employee is transferred abroad or is not employed by the Employer on the date on  which the Employer’s Liability becomes due.    4.2 Any reference to the Company and/or the Employer shall include that entity’s successors in  title and assigns as permitted in accordance with the terms of the Plan and relevant award  agreement.  This Election will continue in effect in respect of any awards which replace the  Awards in circumstances where section 483 of ITEPA applies.    4.3 This Election will continue in effect until the earliest of the following:     (i)  the Employee and the Company agree in writing that it should cease to have effect;     (ii)  on the date the Company serves written notice on the Employee terminating its  effect;     (iii)  on the date HM Revenue & Customs withdraws approval of this Election; or     (iv)  after due payment of the Employer’s Liability in respect of the entirety of the  Awards to which this Election relates or could relate, such that the Election ceases  to have effect in accordance with its terms.    Acceptance by the Employee    The Employee acknowledges that, by clicking on the “ACCEPT” box in the E*TRADE online  acceptance screen, or by signing the Election, the Employee agrees to be bound by the terms of  this Election.    Signature of Participant           Printed Name                Date                  
 
 
   34.   Awards subject to this Election  Award Date Award No.               Acceptance by the Company     The Company acknowledges that, by signing this Election or arranging for the scanned signature  of an authorised representative to appear on this Election, the Company agrees to be bound by the  terms of this Election.          Signature for and on behalf of the Company           Position      _______           
 
 
   35.   SCHEDULE OF EMPLOYER COMPANIES    The following are employer companies to which this Election may apply:    For each company, provide the following details:    Name of Company: Seattle Genetics UK Limited  Registered Office: 11-12 St. James's Square London SW1Y 4LB  Company Registration  Number:  06321958  Corporation Tax District:   Corporation Tax Reference: 623 73208 17853 A  PAYE Reference: 120/EE19799           
 
 
   36.   EXHIBIT A    SEAGEN INC.  AMENDED AND RESTATED 2007 EQUITY INCENTIVE PLAN    NOTICE OF SALE      Italian Employees Only    Note: If you sell or otherwise dispose of Seagen Inc. shares acquired upon vesting of  restricted stock units which were not subject to income tax and social insurance under the  exemption provided by art. 51, par. 2, lett. g) of Presidential Decree no. 917/1986 and such  sale occurs within three (3) years from the date the shares were issued to you, you are  required to provide this Notice of Sale to Seagen Italy S.r.l. (“Seagen Italy”) within 15 days  of the date of such sale.  In the event that you have acquired shares on more than one date, in  order to identify the shares that are deemed sold and, thus, if the sale is occurred within three (3)  years from the issuance date, you must follow the first-in-first-out principle.    EMPLOYEE INFORMATION    Name (last, first, middle)  _________________________________    Employee ID Number               Home Address  Delivery Address:      City, Postal Code, Country:      Telephone: ___________________________ Email:      
 
 
   37.     1. I hereby notify Seagen Italy that on       [month/day/year] I  sold or otherwise disposed of ___________ [number] shares acquired upon the  vesting of restricted stock units granted under the 2007 Equity Incentive Plan.   Those restricted stock units vested on the following date(s):        [month/day/year].  I understand that Italian law requires that any shares  sold be identified under the first-in-first-out principle, i.e., in the event that I have  acquired shares on more than one date, the shares identified above are the shares  acquired earliest and not yet sold.  These shares were not subject to income tax and  social insurance contributions at the time of vest under an exemption pursuant to  art. 51, par. 2, letter g of Presidential Decree no. 917/1986 up to €2,065 per calendar  year.    2. I understand that if I am employed by Seagen Italy at the time I sell or dispose of  shares reported on this notice, Seagen Italy will include the income attributable to  said shares (i.e., the fair market value of the shares as determined under Italian law)  that was previously exempted in my current year income for tax and social  insurance withholding and reporting purposes.  In the event that I am no longer  employed by Seagen Italy, Seagen Italy may inform my new employer or the  Istituto Nazionale Previdenza Sociale, as applicable, that I have sold shares  resulting in taxable income.  I am [check one]:    □ employed at Seagen Italy,  □ employed at             [insert company name and address], □ not employed, but am receiving a  government pension, or □ other      [explain].          Signature:  ______________________________________    Date:   ______________________________________      Give original form to Payroll Department, Seagen Italy.  Keep a copy for your  records.