Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Watertown, MA
SEC filing record 1 source field available
Fiscal year end
31 December
C4 Therapeutics, Inc. has filed 528 SEC EDGAR filings since 11 Jan 2016

SEC filing history

Showing 26-50 of 528 matching filings.

Per page
25
Current page
2
4

FORM 4

Filing date
03 Apr 2026
Reporting date
01 Apr 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
144 File 001-39567

144 filing

Filing date
09 Mar 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
18 Feb 2026
Reporting date
13 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A File 005-91763

SCHEDULE 13G/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A File 005-91763

SCHEDULE 13G/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A File 005-91763

SCHEDULE 13G/A filing

Filing date
12 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A File 005-91763

SCHEDULE 13G/A filing

Filing date
11 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
16 Jan 2026
Reporting date
16 Jan 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
05 Jan 2026
Reporting date
02 Jan 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4

FORM 4

Filing date
05 Jan 2026
Reporting date
02 Jan 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
EFFECT File 333-291696

EFFECT filing

Filing date
10 Dec 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
424B5 File 333-291696

424B5

Filing date
10 Dec 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
CORRESP

CORRESP filing

Filing date
08 Dec 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A File 005-91763

SCHEDULE 13G/A filing

Filing date
14 Nov 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .