C4 Therapeutics, Inc.
42 SEC EDGAR filings indexed (CIK 0001662579) across 13 form types.
Filing profile
C4 Therapeutics, Inc. (CCCC) has 42 SEC filings indexed on SecFilingDex, across 13 form types filed over roughly 2 years, from November 8, 2024 to September 25, 2026. The filer is classified under Biological Products (SIC 2836).
Its most frequent disclosure is the 8-K (Material event) with 9 filings — Current report announcing a material event, such as an acquisition, executive change, or earnings release. 25 of these filings were disclosed in the twelve months to September 25, 2026. 6 of the 42 are amendments (a corrected or updated version of an earlier filing).
Disclosure mix
- 98-KMaterial event · event-driven
- 8Form 4Insider transaction · within 2 business days of transaction
- 510-QQuarterly report · quarterly
- 5SC 13G/A5%+ passive stake · event-driven
- 3424B5Prospectus supplement · event-driven
- 2DEF 14AProxy statement · annual (pre-meeting)
- 2DEFA14ASEC filing
- 210-KAnnual report · annual
- 2SC 13G5%+ passive stake · event-driven
- 1Form 4/AInsider transaction · within 2 business days of transaction
- 1PRE 14ASEC filing
- 1Form 3Initial insider ownership · within 10 days of becoming an insider
- 1424B3Updated prospectus · event-driven
Profile derived from 42 indexed filings; every figure traces to the filing records above, each linking back to its original SEC EDGAR document. Filing counts reflect SecFilingDex's current index, not the filer's complete EDGAR history.
All filings
- 8-KMaterial eventFiled · 0001628280-26-063497
- 8-KMaterial event · period of report Aug 11, 2026Filed · 0001628280-26-055490
- 10-QQuarterly report · period of report Jun 30, 2026Filed · 0001628280-26-055494
- Form 4Insider transaction · period of report Jul 10, 2026Filed · 0001470831-26-000705
- Form 4Insider transaction · period of report Jul 1, 2026Filed · 0001470831-26-000688
- Form 4Insider transaction · period of report Jul 1, 2026Filed · 0001470831-26-000689
- Form 4Insider transaction · period of report Jun 24, 2026Filed · 0001470831-26-000663
- Form 4Insider transaction · period of report Jun 24, 2026Filed · 0001470831-26-000665
- Form 4Insider transaction · period of report Jun 24, 2026Filed · 0001470831-26-000667
- Form 4Insider transaction · period of report Jun 24, 2026Filed · 0001470831-26-000670
- Form 4Insider transaction · period of report Jun 24, 2026Filed · 0001470831-26-000673
- 8-KMaterial event · period of report Jun 24, 2026Filed · 0001628280-26-045194
- 8-KMaterial event · period of report Jun 11, 2026Filed · 0001628280-26-042365
- 8-KMaterial event · period of report May 15, 2026Filed · 0001628280-26-035542
- 8-KMaterial event · period of report May 12, 2026Filed · 0001628280-26-033861
- 10-QQuarterly report · period of report Mar 31, 2026Filed · 0001628280-26-033865
- DEF 14AProxy statementFiled · 0001628280-26-028104
- DEFA14ASEC filingFiled · 0001628280-26-028108
- 8-KMaterial event · period of report Apr 10, 2026Filed · 0001628280-26-024583
- 8-KMaterial event · period of report Apr 9, 2026Filed · 0001628280-26-024336
- 8-KMaterial event · period of report Feb 26, 2026Filed · 0001628280-26-011971
- 10-KAnnual report · period of report Dec 31, 2025Filed · 0001628280-26-012000
- 424B5Prospectus supplementFiled · 0001193125-25-314449
- 10-QQuarterly report · period of report Sep 30, 2025Filed · 0001628280-25-049854
- 424B5Prospectus supplementFiled · 0001193125-25-241586
- 10-QQuarterly report · period of report Jun 30, 2025Filed · 0001628280-25-038587
- Form 4/AInsider transaction · period of report Jul 10, 2025Filed · 0001662579-25-000057
- 10-QQuarterly report · period of report Mar 31, 2025Filed · 0001628280-25-022866
- DEF 14AProxy statement · period of report Apr 29, 2025Filed · 0001628280-25-020466
- DEFA14ASEC filingFiled · 0001628280-25-020467
- PRE 14ASEC filing · period of report Apr 16, 2025Filed · 0001628280-25-017927
- 10-KAnnual report · period of report Dec 31, 2024Filed · 0001628280-25-008433
- Form 3Initial insider ownership · period of report Nov 19, 2024Filed · 0001662579-24-000107
- 424B5Prospectus supplementFiled · 0001628280-24-048088
- 424B3Updated prospectusFiled · 0001628280-24-048091
- SC 13G/A5%+ passive stakeFiled · 0000080255-24-001455
- SC 13G/A5%+ passive stakeFiled · 0000902664-24-006516
- SC 13G/A5%+ passive stakeFiled · 0000902664-24-006655
- SC 13G5%+ passive stakeFiled · 0000947871-24-000915
- SC 13G/A5%+ passive stakeFiled · 0001213900-24-098320
- SC 13G/A5%+ passive stakeFiled · 0001493152-24-045843
- SC 13G5%+ passive stakeFiled · 0002012383-24-003684
Authoritative source
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