0001562180-22-003383.txt : 20220413 0001562180-22-003383.hdr.sgml : 20220413 20220413160925 ACCESSION NUMBER: 0001562180-22-003383 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220401 FILED AS OF DATE: 20220413 DATE AS OF CHANGE: 20220413 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Morrison Briggs CENTRAL INDEX KEY: 0001654430 FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-37708 FILM NUMBER: 22824802 MAIL ADDRESS: STREET 1: C/O SYNDAX PHARMACEUTICALS, INC. STREET 2: 400 TOTTEN POND ROAD, SUITE 110 CITY: WALTHAM STATE: MA ZIP: 02451 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Syndax Pharmaceuticals Inc CENTRAL INDEX KEY: 0001395937 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 320162505 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 35 GATEHOUSE DRIVE STREET 2: BUILDING D, FLOOR 3 CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: 781-419-1400 MAIL ADDRESS: STREET 1: 35 GATEHOUSE DRIVE STREET 2: BUILDING D, FLOOR 3 CITY: WALTHAM STATE: MA ZIP: 02451 4/A 1 primarydocument.xml PRIMARY DOCUMENT X0306 4/A 2022-04-01 2022-04-05 false 0001395937 Syndax Pharmaceuticals Inc SNDX 0001654430 Morrison Briggs C/O SYNDAX PHARMACEUTICALS, INC. 35 GATEHOUSE DRIVE, BUILDING D, FLOOR 3 WALTHAM MA 02451 true true false false President, Head of R&D Common Stock 2022-04-01 4 M false 70545.00 7.20 A 88381.00 D Common Stock 2022-04-04 4 M false 3128.00 7.20 A 20964.00 D Stock Options (Right to buy) 7.20 2022-04-01 4 M false 70545.00 0.00 D 2025-06-30 Common Stock 70545.00 0.00 D Stock Options (Right to buy) 7.20 2022-04-04 4 M false 3128.00 0.00 D 2025-06-30 Common Stock 3128.00 0.00 D The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date. This option is fully vested. /s/ Michael A. Metzger, Attorney-in-fact 2022-04-13