Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_____________________

SCHEDULE 14A INFORMATION

PROXY STATEMENT PURSUANT TO SECTION 14(a)

OF THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. )

_____________________

Filed by the Registrant x Filed by a Party other than the Registrant o

Check the appropriate box:


o			Preliminary Proxy Statement

o			Confidential, for Use of the Commission Only (as permitted by Rule 14a6(e)(2))

o			Definitive Proxy Statement

x			Definitive Additional Materials

o			Soliciting Material Pursuant to §240.14a12

C4 THERAPEUTICS, INC.

(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check boxes that apply):


x			No fee required.

o			Fee paid previously with preliminary materials.

o			Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 011.

Cover	12 Months Ended
Cover	Dec. 31, 2022
Document Information [Line Items]
Document Type	DEFA14A
Amendment Flag	false
Entity Information [Line Items]
Entity Registrant Name	C4 THERAPEUTICS, INC.
Entity Central Index Key	0001662579