0000950170-24-001821.txt : 20240104 0000950170-24-001821.hdr.sgml : 20240104 20240104160020 ACCESSION NUMBER: 0000950170-24-001821 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240102 FILED AS OF DATE: 20240104 DATE AS OF CHANGE: 20240104 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Barrett Peter CENTRAL INDEX KEY: 0001291895 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37566 FILM NUMBER: 24511684 MAIL ADDRESS: STREET 1: C/O ALNYLAM PHARMACEUTICALS, INC. STREET 2: 300 THIRD STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SYNLOGIC, INC. CENTRAL INDEX KEY: 0001527599 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 261824804 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 301 BINNEY STREET STREET 2: SUITE 402 CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-401-9975 MAIL ADDRESS: STREET 1: 301 BINNEY STREET STREET 2: SUITE 402 CITY: CAMBRIDGE STATE: MA ZIP: 02142 FORMER COMPANY: FORMER CONFORMED NAME: Mirna Therapeutics, Inc. DATE OF NAME CHANGE: 20110809 4 1 ownership.xml 4 X0508 4 2024-01-02 0001527599 SYNLOGIC, INC. SYBX 0001291895 Barrett Peter C/O SYNLOGIC, INC. 301 BINNEY STREET, SUITE 402 CAMBRIDGE MA 02142 true false false false false Stock Option (right to buy) 4.47 2024-01-02 4 A false 24923 0.00 A 2034-01-02 Common Stock 24923 24923 D The options were issued to the Reporting Person pursuant to the Issuer's Amended and Restated Non-Employee Director Compensation Program and 2015 Equity Incentive Award Plan in lieu of the non-employee director board and committee cash retainers of $81,500 in the aggregate. Such options vest in four equal quarterly installments on the last day of each calendar quarter during 2024 provided the Reporting Person continues to provide services to the Issuer. The reporting person is a member of Atlas Venture Associates IX, LLC ("AVA IX LLC") and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the equity grants to Atlas Venture Advisors, L.P. As such, the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any. /s/ Ommer Chohan, attorney-in-fact 2024-01-04