0000950170-25-013831.txt : 20250204 0000950170-25-013831.hdr.sgml : 20250204 20250204175311 ACCESSION NUMBER: 0000950170-25-013831 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250203 FILED AS OF DATE: 20250204 DATE AS OF CHANGE: 20250204 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Dooley Mary Beth CENTRAL INDEX KEY: 0002015112 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37566 FILM NUMBER: 25589928 MAIL ADDRESS: STREET 1: 301 BINNEY ST., SUITE 402 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: PO BOX 30 CITY: WINCHESTER STATE: MA ZIP: 01890 BUSINESS PHONE: 617-659-2802 MAIL ADDRESS: STREET 1: PO BOX 30 CITY: WINCHESTER STATE: MA ZIP: 01890 FORMER COMPANY: FORMER CONFORMED NAME: Mirna Therapeutics, Inc. DATE OF NAME CHANGE: 20110809 4 1 ownership.xml 4 X0508 4 2025-02-03 0001527599 SYNLOGIC, INC. SYBX 0002015112 Dooley Mary Beth C/O SYNLOGIC, INC. PO BOX 30 WINCHESTER MA 01890 false true false false See Remarks below false Common Stock 2025-02-03 4 S false 2107 1.33 D 13045 D Represents the number of shares sold by the reporting person on February 3, 2025 to cover the tax liability in connection with the vesting of a restricted stock award, vesting on January 31, 2025, that was granted on January 2, 2024. Principal Executive Officer and Principal Financial Officer /s/ Mary Beth Dooley 2025-02-04