C4 Therapeutics, Inc. — Director's Dealing 2021

Feb 19, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: C4 Therapeutics, Inc. (CCCC)
CIK: 0001662579
Period of Report: 2021-02-18

Reporting Person: COHEN MARC A (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-18	Common Stock	M	536	$2.11	Acquired	5566	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-18	Stock Option (Right to Buy)	$2.11	M	536	Disposed	2026-07-12	Common Stock (536)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1852207	Indirect
Common Stock	2484425	Indirect

Footnotes

F1: Shares held by Reporting Person as trustee of the Marc Andrew Cohen Revocable Trust. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

F2: Shares held by Cobro Ventures Opportunity Fund, L.P. ("Cobro Ventures"). The Reporting Person serves as a manager of Cobro Opportunity Fund GP, LLC, the general partner of Cobro Ventures, and may be deemed to exercise voting and investment power over the shares held by Cobro Ventures. The Reporting Person disclaims beneficial ownership of the shares held by Cobro Ventures except to the extent of his pecuniary interest therein.

F3: Represents underlying unexercised stock options that were granted on July 13, 2016. The terms of the original grant provide that 12.5% of this option vested and became exercisable on December 31, 2016, with the remainder vesting in 28 equal quarterly installments thereafter, subject to the Reporting Person's continuous service through each such date.