RA CAPITAL MANAGEMENT, L.P. - 17 Oct 2025 SCHEDULE 13G Report for C4 Therapeutics, Inc. Common Stock, $0.0001 par value per share (CCCC)

Filing Manager
RA CAPITAL MANAGEMENT, L.P.
Reporting Manager
RA Capital Management, L.P.
Security
C4 Therapeutics, Inc. Common Stock, $0.0001 par value per share
Symbol
CCCC
Shares outstanding
95,366,222 shares
Disclosed Ownership
9,441,256 shares
Ownership
9.9%
Form type
SCHEDULE 13G
Filing time
24 Oct 2025, 16:13:12 UTC
Date of event
17 Oct 2025
Previous filing
15 May 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
RA Capital Management, L.P. 9.9% 9,441,256 0 9,441,256 /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory
Peter Kolchinsky 9.9% 9,441,256 0 9,441,256 /s/ Peter Kolchinsky Peter Kolchinsky
Rajeev Shah 9.9% 9,441,256 0 9,441,256 /s/ Rajeev Shah Rajeev Shah
RA Capital Healthcare Fund, L.P. 9.9% 9,441,256 0 9,441,256 /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager