SEC Form SC 13G filed by Genocea Biosciences, Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.)*

Genocea Biosciences, Inc.

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

o Rule 13d-1(b)

x Rule 13d-1(c)

o Rule 13d-1(d)

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

The information required in 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).

*See Item 4 for additional information.

*See Item 4 for additional information.

Genocea Biosciences, Inc. (the “Issuer”)

100 Acorn Park Drive, Cambridge, Massachusetts 02140

This report on Schedule 13G is being filed by Commodore Capital LP, a Delaware limited partnership (the “Firm”) and Commodore Capital Master LP, a Cayman Islands exempted limited partnership (“Commodore Master”). The address for the Firm and Commodore Master is: 767 Fifth Avenue, Floor 12, New York, NY 10153.

Common Stock, $0.001 par value per share (the “Common Stock”)

372427401

Item 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person filing is a:

N/A

Item 4. Ownership

Information with respect to the Firm’s ownership of securities of the issuer is incorporated by reference to items (5) - (9) and (11) of the respective cover page of the Firm.

As reported in the cover pages to this report, the ownership information with respect to the Firm is as follows:

(a) Amount Beneficially Owned: 2,871,624 *

(b) Percent of Class: 5.4%*

(c) Number of Shares as to which such person has:

(i) Sole power to vote or to direct the vote: 0

(ii) Shared power to vote or to direct the vote: 2,871,624 *

(iii) Sole power to dispose or to direct the disposition of: 0

(iv) Shared power to dispose or to direct the disposition of: 2,871,624 *

As reported in the cover pages to this report, the ownership information with respect to Commodore Master is as follows:

(a) Amount Beneficially Owned: 2,871,624 *

(b) Percent of Class: 5.4%*

(c) Number of Shares as to which such person has:

(i) Sole power to vote or to direct the vote: 0

(ii) Shared power to vote or to direct the vote: 2,871,624 *

(iii) Sole power to dispose or to direct the disposition of: 0

(iv) Shared power to dispose or to direct the disposition of: 2,871,624 *

*The Firm is the investment manager to Commodore Master. As of March 22, 2021, the Firm may be deemed to beneficially own an aggregate of 2,871,624 shares of Common Stock of the Issuer. The Firm, as the investment manager to Commodore Master, may be deemed to beneficially own these securities. Michael Kramarz and Robert Egen Atkinson are the managing partners of the Firm and exercise investment discretion with respect to these securities. Ownership percentages are based on 53,518,483 shares of Common Stock reported as issued and outstanding in the Issuer’s Annual Report on Form 10-K, filed with the Securities and Exchange Commission on February 22, 2021.

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. Certification

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.

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.

Dated: March 31, 2021

Commodore Capital LP

By: /s/ Michael Kramarz

Michael Kramarz, Managing Partner

Commodore Capital Master LP

By: /s/ Michael Kramarz

Michael Kramarz, Authorized Signatory