Kenneth Carl Anderson - Jan 26, 2022 Form 4 Insider Report for C4 Therapeutics, Inc. (CCCC)

Role: Director
Signature: /s/ Jolie M. Siegel, Attorney-in-Fact
Stock symbol: CCCC
Transactions as of: Jan 26, 2022
Transactions value $: $8,338
Form type: 4
Date filed: 1/26/2022, 04:26 PM
Previous filing: Jan 18, 2022
Next filing: Apr 5, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CCCC	Common Stock	Options Exercise	$1.69K	+803	+0.94%	$2.11	86.6K	Jan 26, 2022	Direct
transaction	CCCC	Common Stock	Options Exercise	$6.64K	+1.33K	+1.54%	$4.98	88K	Jan 26, 2022	Direct
holding	CCCC	Common Stock						47.3K	Jan 26, 2022	By Spouse
holding	CCCC	Common Stock						61.3K	Jan 26, 2022	By Kenneth C. Anderson 2016 Grantor Retained Annuity Trust	F1
holding	CCCC	Common Stock						61.3K	Jan 26, 2022	By Cynthia E. Anderson 2016 Grantor Retained Annuity Trust	F2
holding	CCCC	Common Stock						16.9K	Jan 26, 2022	By Kenneth C. Anderson 2015 Irrevocable Trust	F3
holding	CCCC	Common Stock						16.9K	Jan 26, 2022	By Cynthia E. Anderson 2015 Irrevocable Trust	F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CCCC	Stock Option (Right to Buy)	Options Exercise	$0	-803	-27.31%	$0.00	2.14K	Jan 26, 2022	Common Stock	803	$2.11	Direct	F5
transaction	CCCC	Stock Option (Right to Buy)	Options Exercise	$0	-1.33K	-33.33%	$0.00	2.67K	Jan 26, 2022	Common Stock	1.33K	$4.98	Direct	F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares held by the Kenneth C. Anderson 2016 Grantor Retained Annuity Trust. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
F2	Shares held by the Cynthia E. Anderson 2016 Grantor Retained Annuity Trust. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
F3	Shares held by the Kenneth C. Anderson 2015 Irrevocable Trust. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
F4	Shares held by the Cynthia E. Anderson 2015 Irrevocable Trust. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
F5	12.5% of the shares underlying this option vested and became exercisable on December 31, 2016, with the remainder vesting in 28 equal quarterly installments thereafter.
F6	The shares underlying this option vest and become exercisable in 12 equal quarterly installments, with the first installment vested on October 1, 2020.