Filing Details

Accession Number:
0001193125-24-036405
Form Type:
13G Filing
Publication Date:
2024-02-13 19:00:00
Filed By:
Omega Fund Vi, L.p.
Company:
Lexeo Therapeutics Inc.
Filing Date:
2024-02-14
SEC Url:
13G Filing
Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Omega Fund VI 0 2,157,623 0 2,157,623 2,157,623 8.1%
Omega Fund VI GP 0 2,157,623 0 2,157,623 2,157,623 8.1%
Omega Fund VI GP Manager, Ltd 0 2,157,623 0 2,157,623 2,157,623 8.1%
Claudio Nessi 0 2,157,623 0 2,157,623 2,157,623 8.1%
Otello Stampacchia 0 2,157,623 0 2,157,623 2,157,623 8.1%
Anne-Mari Paster 0 2,157,623 0 2,157,623 2,157,623 8.1%
filing Omega Fund VI
Filing

 

 

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

 

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2

(Amendment No. __)

 

 

Lexeo Therapeutics, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

52886X107

(CUSIP Number)

December 31, 2023

(Date of Event Which Requires Filing of this Statement)

 

 

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

☐ Rule 13d-1(c)

☒ Rule 13d-1(d)

 

*

The remainder of this cover page shall be filled out for a reporting persons initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be filed for the purpose of Section 18 of the Securities Exchange Act of 1934 (Act) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 

 

 


CUSIP NO. 52886X107   13G   Page 2 of 11 Pages

 

 1   

 NAMES OF REPORTING PERSONS

 

 Omega Fund VI, L.P.

 2  

 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

 (a) ☐  (b) ☒ (1)

 

 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

 

 0

   6   

 SHARED VOTING POWER

 

 2,157,623

   7   

 SOLE DISPOSITIVE POWER

 

 0

   8   

 SHARED DISPOSITIVE POWER

 

 2,157,623

 9   

 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

 2,157,623

10  

 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

 

 ☐

11  

 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

 8.1% (2)

12  

 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 

 PN

 

(1)

This Schedule 13G is filed by Omega Fund VI, L.P. (Omega Fund), Omega Fund VI GP, L.P. (Omega GP), Omega Fund VI GP Manager, Ltd. (Omega Ltd), Claudio Nessi (Nessi), Otello Stampacchia (Stampacchia), and Anne-Mari Paster (Paster) (together, the Reporting Persons). Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund; and each of Omega Ltd and Omega GP may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund. The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

(2)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.


CUSIP NO. 52886X107   13G   Page 3 of 11 Pages

 

 1   

 NAMES OF REPORTING PERSONS

 

 Omega Fund VI GP, L.P.

 2  

 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

 (a) ☐  (b) ☒ (1)

 

 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

 

 0

   6   

 SHARED VOTING POWER

 

 2,157,623

   7   

 SOLE DISPOSITIVE POWER

 

 0

   8   

 SHARED DISPOSITIVE POWER

 

 2,157,623

 9   

 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

 2,157,623

10  

 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

 

 ☐

11  

 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

 8.1% (2)

12  

 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 

 PN

 

(1)

This Schedule 13G is filed by Omega Fund VI, L.P. (Omega Fund), Omega Fund VI GP, L.P. (Omega GP), Omega Fund VI GP Manager, Ltd. (Omega Ltd), Claudio Nessi (Nessi), Otello Stampacchia (Stampacchia), and Anne-Mari Paster (Paster) (together, the Reporting Persons). Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund; and each of Omega Ltd and Omega GP may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund. The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

(2)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.


CUSIP NO. 52886X107   13G   Page 4 of 11 Pages

 

 1   

 NAMES OF REPORTING PERSONS

 

 Omega Fund VI GP Manager, Ltd.

 2  

 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

 (a) ☐  (b) ☒ (1)

 

 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

 

 0

   6   

 SHARED VOTING POWER

 

 2,157,623

   7   

 SOLE DISPOSITIVE POWER

 

 0

   8   

 SHARED DISPOSITIVE POWER

 

 2,157,623

 9   

 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

 2,157,623

10  

 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

 

 ☐

11  

 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

 8.1% (2)

12  

 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 

 PN

 

(1)

This Schedule 13G is filed by Omega Fund VI, L.P. (Omega Fund), Omega Fund VI GP, L.P. (Omega GP), Omega Fund VI GP Manager, Ltd. (Omega Ltd), Claudio Nessi (Nessi), Otello Stampacchia (Stampacchia), and Anne-Mari Paster (Paster) (together, the Reporting Persons). Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund; and each of Omega Ltd and Omega GP may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund. The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

(2)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.


CUSIP NO. 52886X107   13G   Page 5 of 11 Pages

 

 1   

 NAMES OF REPORTING PERSONS

 

 Claudio Nessi

 2  

 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

 (a) ☐  (b) ☒ (1)

 

 3  

 SEC USE ONLY

 

 4  

 CITIZENSHIP OR PLACE OF ORGANIZATION

 

 Switzerland

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

   5    

 SOLE VOTING POWER

 

 0

   6   

 SHARED VOTING POWER

 

 2,157,623

   7   

 SOLE DISPOSITIVE POWER

 

 0

   8   

 SHARED DISPOSITIVE POWER

 

 2,157,623

 9   

 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

 2,157,623

10  

 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

 

 ☐

11  

 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

 8.1% (2)

12  

 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 

 IN

 

(1)

This Schedule 13G is filed by Omega Fund VI, L.P. (Omega Fund), Omega Fund VI GP, L.P. (Omega GP), Omega Fund VI GP Manager, Ltd. (Omega Ltd), Claudio Nessi (Nessi), Otello Stampacchia (Stampacchia), and Anne-Mari Paster (Paster) (together, the Reporting Persons). Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund; and each of Omega Ltd and Omega GP may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund. The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

(2)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.


CUSIP NO. 52886X107   13G   Page 6 of 11 Pages

 

 1   

 NAMES OF REPORTING PERSONS

 

 Otello Stampacchia

 2  

 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

 (a) ☐  (b) ☒ (1)

 

 3  

 SEC USE ONLY

 

 4  

 CITIZENSHIP OR PLACE OF ORGANIZATION

 

 Italy

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

   5    

 SOLE VOTING POWER

 

 0

   6   

 SHARED VOTING POWER

 

 2,157,623

   7   

 SOLE DISPOSITIVE POWER

 

 0

   8   

 SHARED DISPOSITIVE POWER

 

 2,157,623

 9   

 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

 2,157,623

10  

 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

 

 ☐

11  

 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

 8.1% (2)

12  

 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 

 IN

 

(1)

This Schedule 13G is filed by Omega Fund VI, L.P. (Omega Fund), Omega Fund VI GP, L.P. (Omega GP), Omega Fund VI GP Manager, Ltd. (Omega Ltd), Claudio Nessi (Nessi), Otello Stampacchia (Stampacchia), and Anne-Mari Paster (Paster) (together, the Reporting Persons). Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund; and each of Omega Ltd and Omega GP may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund. The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

(2)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.


CUSIP NO. 52886X107   13G   Page 7 of 11 Pages

 

 1   

 NAMES OF REPORTING PERSONS

 

 Anne-Mari Paster

 2  

 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

 (a) ☐  (b) ☒ (1)

 

 3  

 SEC USE ONLY

 

 4  

 CITIZENSHIP OR PLACE OF ORGANIZATION

 

 United States of America

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

   5    

 SOLE VOTING POWER

 

 0

   6   

 SHARED VOTING POWER

 

 2,157,623

   7   

 SOLE DISPOSITIVE POWER

 

 0

   8   

 SHARED DISPOSITIVE POWER

 

 2,157,623

 9   

 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

 2,157,623

10  

 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

 

 ☐

11  

 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

 8.1% (2)

12  

 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 

 IN

 

(1)

This Schedule 13G is filed by Omega Fund VI, L.P. (Omega Fund), Omega Fund VI GP, L.P. (Omega GP), Omega Fund VI GP Manager, Ltd. (Omega Ltd), Claudio Nessi (Nessi), Otello Stampacchia (Stampacchia), and Anne-Mari Paster (Paster) (together, the Reporting Persons). Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund; and each of Omega Ltd and Omega GP may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund. The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

(2)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.


CUSIP NO. 52886X107   13G   Page 8 of 11 Pages

 

Introductory Note: This statement on Schedule 13G is filed on behalf of the Reporting Persons, in respect of shares of Common Stock (Common Stock), of Lexeo Therapeutics, Inc. (the Issuer).

Item 1(a) Name of Issuer:

Lexeo Therapeutics, Inc. (the Issuer)

Item 1(b) Address of Issuers principal executive offices:

Lexeo Therapeutics, Inc.

345 Park Avenue South, Floor 6

New York, NY 10010

Items 2(a) Name of Reporting Persons filing:

Omega Fund VI, L.P. (Omega Fund)

Omega Fund VI GP, L.P. (Omega GP)

Omega Fund VI GP Manager, Ltd. (Omega Ltd)

Claudio Nessi (Nessi)

Otello Stampacchia (Stampacchia)

Anne-Mari Paster (Paster)

Item 2(b) Address or principal business office or, if none, residence:

The address of the principal business office of Omega Fund, Omega GP, Omega Ltd, Nessi, Stampacchia, and Paster, is c/o Omega Fund Management, LLC, 888 Boylston Street, Suite 1111, Boston, MA 02199.

Item 2(c) Citizenship:

 

Name

   Citizenship or Place of Organization
Omega Fund    Cayman Islands
Omega GP    Cayman Islands
Omega Ltd    Cayman Islands
Nessi    Switzerland
Stampacchia    Italy
Paster    United States of America

Item 2(d) Title of class of securities:

Common Stock

Item 2(e) CUSIP No.:

52886X107

Item 3 If this statement is filed pursuant to §§ 240.13d-1(b), or 240.13d-2(b) or (c), check whether the person filings is a:

Not applicable.


CUSIP NO. 52886X107   13G   Page 9 of 11 Pages

 

Item 4 Ownership

The following information with respect to the ownership of Common Stock of the Issuer by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2023.

 

Reporting Persons    Shares of
Common
Stock Held
Directly
     Sole
Voting
Power
     Shared
Voting
Power
     Sole
Dispositive
Power
     Shared
Dispositive
Power
     Beneficial
Ownership
     Percentage
of Class
(1)
 

Omega Fund(2)(3)

     2,157,623        0        2,157,623        0        2,157,623        2,157,623        8.1

Omega GP(2)(3)

     0        0        2,157,623        0        2,157,623        2,157,623        8.1

Omega Ltd(2)(3)

     0        0        2,157,623        0        2,157,623        2,157,623        8.1

Nessi(2)(3)

     0        0        2,157,623        0        2,157,623        2,157,623        8.1

Stampacchia(2)(3)

     0        0        2,157,623        0        2,157,623        2,157,623        8.1

Paster(2)(3)

     0        0        2,157,623        0        2,157,623        2,157,623        8.1

 

(1)

The following percentages are based on 26,645,538 shares of common stock outstanding as of December 7, 2023, as set forth in the Issuers Quarterly Report on 10-Q for the period ended September 30, 2023, filed with the Securities and Exchange Commission on December 11, 2023.

(2)

Omega Fund owns 2,157,623 shares of the Common Stock. Omega Ltd serves as the general partner of Omega GP, which serves as the general partner of Omega Fund, and each of Omega GP and Omega Ltd may be deemed to own beneficially the shares held by Omega Fund. Nessi, Stampacchia, and Paster are the directors of Omega Ltd and may be deemed to beneficially own the shares held by Omega Fund.

(3)

The Reporting Persons may be deemed a group for purposes of Section 13 of the Exchange Act and expressly disclaim status as a group for purposes of this Schedule 13G.

Item 5 Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: ☐

Item 6 Ownership of More than Five 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

Not applicable.


CUSIP NO. 52886X107   13G   Page 10 of 11 Pages

 

SIGNATURES

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.

Dated: February 14, 2024

 

OMEGA FUND VI, L.P.
BY:   Omega Fund VI GP, L.P.
ITS:   GENERAL PARTNER
BY:   Omega Fund VI GP Manager, Ltd.
ITS:   GENERAL PARTNER
By:  

/s/ Otello Stampacchia

  Director
OMEGA FUND VI GP, L.P.
BY:   Omega Fund VI GP Manager, Ltd.
ITS:   GENERAL PARTNER
By:  

/s/ Otello Stampacchia

  Director
OMEGA FUND VI GP MANAGER, LTD.
By:  

/s/ Otello Stampacchia

  Director

/s/ * Otello Stampacchia, as Attorney-in-Fact

Claudio Nessi

/s/ Otello Stampacchia

Otello Stampacchia

/s/ * Otello Stampacchia, as Attorney-in-Fact

Anne-Mari Paster

Exhibit(s):

 

Exhibit 99.1:    Joint Filing Statement
Exhibit 99.2:    Power of Attorney