0001662579-24-000040.txt : 20240410 0001662579-24-000040.hdr.sgml : 20240410 20240410161641 ACCESSION NUMBER: 0001662579-24-000040 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240214 FILED AS OF DATE: 20240410 DATE AS OF CHANGE: 20240410 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Mossler Mark CENTRAL INDEX KEY: 0001992219 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39567 FILM NUMBER: 24835978 MAIL ADDRESS: STREET 1: C4 THERAPEUTICS, INC. STREET 2: 490 ARSENAL WAY, SUITE 120 CITY: WATERTOWN STATE: MA ZIP: 02472 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: C4 Therapeutics, Inc. CENTRAL INDEX KEY: 0001662579 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 475617627 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 490 ARSENAL WAY STREET 2: SUITE 120 CITY: WATERTOWN STATE: MA ZIP: 02472 BUSINESS PHONE: (617) 231-0700 MAIL ADDRESS: STREET 1: 490 ARSENAL WAY STREET 2: SUITE 120 CITY: WATERTOWN STATE: MA ZIP: 02472 4 1 wk-form4_1712780190.xml FORM 4 X0508 4 2024-02-14 0 0001662579 C4 Therapeutics, Inc. CCCC 0001992219 Mossler Mark C/O C4 THERAPEUTICS, INC. 490 ARSENAL WAY #120 WATERTOWN MA 02472 0 1 0 0 Chief Accounting Officer 0 Common Stock 2024-02-14 4 A 0 18290 0 A 19790 D Stock Option (Right to Buy) 7.31 2024-02-14 4 A 0 27430 0 A 2034-02-13 Common Stock 27430 27430 D Represents restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. The RSUs shall vest in four equal annual installments following the grant date, with the first installment vesting on February 14, 2025. Includes 1,500 shares of Common Stock that were inadvertently omitted from the Form 3 filed by the Reporting Person on September 19, 2023. The shares underlying this option shall vest and become exercisable in sixteen equal quarterly installments following the grant date, with the first installment vesting on May 14, 2024. /s/ Jolie M. Siegel, Attorney-in-Fact 2024-04-10