SCHEDULE 13G

CUSIP No.

20451W101

1

Names of Reporting Persons

Vivo Opportunity Fund Holdings, L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,174,494.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,174,494.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,174,494.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

11

Percent of class represented by amount in row (9)

3.2 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: The number represents 3,174,494 ordinary shares, par value (pound)0.008 per share (the "Ordinary Shares") of COMPASS Pathways plc (the "Issuer"), which are represented by 3,174,494 American Depository Shares ("ADSs"), issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99% of the Issuer's outstanding Ordinary Shares. All securities are held of record by Vivo Opportunity Fund Holdings, L.P. Vivo Opportunity, LLC is the general partner of Vivo Opportunity Fund Holdings, L.P. Based on the sum of (i) 96,017,044 Ordinary Shares outstanding of the Issuer as of October 30, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission (the "SEC") on November 4, 2025, and (ii) 3,174,494 Ordinary Shares, represented by 3,174,494 ADSs, issuable upon exercise of warrants held of records by Vivo Opportunity Fund Holdings, L.P.

SCHEDULE 13G

CUSIP No.

20451W101

1

Names of Reporting Persons

Vivo Opportunity, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,174,494.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,174,494.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,174,494.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

11

Percent of class represented by amount in row (9)

3.2 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: The number represents 3,174,494 Ordinary Shares, represented by 3,174,494 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99% of the Issuer's outstanding Ordinary Shares. All securities are held of record by Vivo Opportunity Fund Holdings, L.P. Vivo Opportunity, LLC is the general partner of Vivo Opportunity Fund Holdings, L.P. Based on the sum of (i) 96,017,044 Ordinary Shares outstanding of the Issuer as of October 30, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q, filed with the SEC on November 4, 2025, and (ii) 3,174,494 Ordinary Shares, represented by 3,174,494 ADSs, issuable upon exercise of warrants held of records by Vivo Opportunity Fund Holdings, L.P.

SCHEDULE 13G

CUSIP No.

20451W101

1

Names of Reporting Persons

Vivo Opportunity Cayman Fund, L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 187,891.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 187,891.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

187,891.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

11

Percent of class represented by amount in row (9)

0.2 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: The number represents 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99% of the Issuer's outstanding Ordinary Shares. All securities are held of record by Vivo Opportunity Cayman Fund, L.P. Vivo Opportunity Cayman, LLC is the general partner of Vivo Opportunity Cayman Fund, L.P. Based on the sum of (i) 96,017,044 Ordinary Shares outstanding of the Issuer as of October 30, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q, filed with the SEC on November 4, 2025, and (ii) 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants held of records by Vivo Opportunity Cayman Fund, L.P.

SCHEDULE 13G

CUSIP No.

20451W101

1

Names of Reporting Persons

Vivo Opportunity Cayman, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 187,891.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 187,891.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

187,891.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

11

Percent of class represented by amount in row (9)

0.2 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: The number represents 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99% of the Issuer's outstanding Ordinary Shares. All securities are held of record by Vivo Opportunity Cayman Fund, L.P. Vivo Opportunity Cayman, LLC is the general partner of Vivo Opportunity Cayman Fund, L.P. Based on the sum of (i) 96,017,044 Ordinary Shares outstanding of the Issuer as of October 30, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q, filed with the SEC on November 4, 2025, and (ii) 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants held of records by Vivo Opportunity Cayman Fund, L.P.

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

COMPASS Pathways plc

(b)

Address of issuer's principal executive offices:

33 Broadwick Street, London W1F 0DQ, United Kingdom

Item 2.

(a)

Name of person filing:

Vivo Opportunity Fund Holdings, L.P. and its General Partner Vivo Opportunity, LLC Vivo Opportunity Cayman Fund, L.P. and its General Partner Vivo Opportunity Cayman, LLC

(b)

Address or principal business office or, if none, residence:

192 Lytton Avenue, Palo Alto, CA 94301.

(c)

Citizenship:

Vivo Opportunity Fund Holdings, L.P., a Delaware limited partnership. Vivo Opportunity, LLC, a Delaware limited liability company. Vivo Opportunity Cayman Fund, L.P. a Cayman Islands limited partnership. Vivo Opportunity Cayman, LLC is a Cayman Islands limited liability company.

(d)

Title of class of securities:

Ordinary Shares, par value (pound)0.008 per share, represented by American Depositary Shares

(e)

CUSIP No.:

20451W101

Item 4.

Ownership

(a)

Amount beneficially owned:

Amount beneficially owned and (b) percent of class: The information set forth in rows 5 through 11 of the cover pages is incorporated by reference into this Item 4.

(b)

Percent of class:

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

Vivo Opportunity Fund Holdings, L.P.: 3,174,494 Ordinary Shares, represented by 3,174,494 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%. Vivo Opportunity, LLC: 3,174,494 Ordinary Shares, represented by 3,174,494 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%. Vivo Opportunity Cayman Fund, L.P.: 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%. Vivo Opportunity Cayman, LLC: 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%.

(ii) Shared power to vote or to direct the vote:

0

(iii) Sole power to dispose or to direct the disposition of:

Vivo Opportunity Fund Holdings, L.P.: 3,174,494 Ordinary Shares, represented by 3,174,494ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%. Vivo Opportunity, LLC: 3,174,494 Ordinary Shares, represented by 3,174,494 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%. Vivo Opportunity Cayman Fund, L.P.: 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%. Vivo Opportunity Cayman, LLC: 187,891 Ordinary Shares, represented by 187,891 ADSs, issuable upon exercise of certain warrants, the exercise of which is subject to a beneficial ownership limitation of 9.99%.

(iv) Shared power to dispose or to direct the disposition of:

0

Item 5.

Ownership of 5 Percent or Less of a Class.

Ownership of 5 percent or less of a class

Item 6.

Ownership of more than 5 Percent on Behalf of Another Person.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

Not Applicable

Item 9.

Notice of Dissolution of Group.

Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Vivo Opportunity Fund Holdings, L.P.

Signature:	/s/ Kevin Dai
Name/Title:	Kevin Dai/Managing Member of Vivo Opportunity, LLC, General Partner
Date:	11/14/2025

Vivo Opportunity, LLC

Signature:	/s/ Kevin Dai
Name/Title:	Kevin Dai/Managing Member
Date:	11/14/2025

Vivo Opportunity Cayman Fund, L.P.

Signature:	/s/ Kevin Dai
Name/Title:	Kevin Dai/Managing Member of Vivo Opportunity Cayman, LLC, General Partner
Date:	11/14/2025

Vivo Opportunity Cayman, LLC

Signature:	/s/ Kevin Dai
Name/Title:	Kevin Dai/Managing Member
Date:	11/14/2025