0000950170-24-034866.txt : 20240321 0000950170-24-034866.hdr.sgml : 20240321 20240321170930 ACCESSION NUMBER: 0000950170-24-034866 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240319 FILED AS OF DATE: 20240321 DATE AS OF CHANGE: 20240321 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flynn James P CENTRAL INDEX KEY: 0001955965 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37566 FILM NUMBER: 24772250 MAIL ADDRESS: STREET 1: 41 HARRIS CT CITY: DANVILLE STATE: CA ZIP: 94526 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 2024-03-19 0001527599 SYNLOGIC, INC. SYBX 0001955965 Flynn James P C/O SYNLOGIC, INC. 301 BINNEY STREET, SUITE 402 CAMBRIDGE MA 02142 true false false false false Stock Option (right to buy) 1.78 2024-03-19 4 A false 4000 0 A 2034-03-19 Common Stock 4000 4000 D The option vests and becomes exercisable in substantially equal installments on each of the first three anniversaries of the Transaction Date, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date. /s/ James P. Flynn 2024-03-21