C4 Therapeutics, Inc. — All Filings
501 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 144 | — | 0001950047-26-002361 | Mar 9, 2026 | — |
| S-8 | S-8 | 0001628280-26-012002 | Feb 26, 2026 | — |
| 10-K | 10-K | 0001628280-26-012000 | Feb 26, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001628280-26-011971 | Feb 26, 2026 | — |
| 4 | FORM 4 | 0001470831-26-000180 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | FORM 4 | 0001470831-26-000179 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | FORM 4 | 0001470831-26-000178 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | FORM 4 | 0001470831-26-000177 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | FORM 4 | 0001470831-26-000176 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | FORM 4 | 0001470831-26-000175 | Feb 18, 2026 | Feb 13, 2026 |
| 4 | FORM 4 | 0001470831-26-000174 | Feb 18, 2026 | Feb 13, 2026 |
| SCHEDULE 13G/A | — | 0000947871-26-000188 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0000902664-26-001046 | Feb 17, 2026 | — |
| SCHEDULE 13G/A | — | 0001213900-26-015656 | Feb 12, 2026 | — |
| 4 | FORM 4 | 0001470831-26-000045 | Jan 16, 2026 | — |
| 8-K | 8-K | 0001628280-26-002010 | Jan 14, 2026 | — |
| 4 | FORM 4 | 0001470831-26-000009 | Jan 5, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001470831-26-000008 | Jan 5, 2026 | Jan 2, 2026 |
| EFFECT | — | 9999999995-25-003638 | Dec 10, 2025 | — |
| 424B5 | 424B5 | 0001193125-25-314449 | Dec 10, 2025 | — |
| S-3 | S-3 | 0001628280-25-053575 | Nov 21, 2025 | — |
| SCHEDULE 13G/A | — | 0000947871-25-001020 | Nov 14, 2025 | — |
| SCHEDULE 13G/A | — | 0000814133-25-000117 | Nov 13, 2025 | — |
| 10-Q | 10-Q | 0001628280-25-049854 | Nov 6, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001628280-25-049850 | Nov 6, 2025 | — |
| 4 | 4 | 0001193125-25-258664 | Oct 30, 2025 | Oct 28, 2025 |
| SCHEDULE 13G | — | 0000950130-25-000220 | Oct 24, 2025 | — |
| SCHEDULE 13G | — | 0001346824-25-000025 | Oct 24, 2025 | — |
| SCHEDULE 13G | — | 0000902664-25-004471 | Oct 20, 2025 | — |
| 8-K | 8-K | 0001193125-25-241591 | Oct 16, 2025 | — |
| 424B5 | 424B5 | 0001193125-25-241586 | Oct 16, 2025 | — |
| FWP | FWP | 0001193125-25-240800 | Oct 16, 2025 | — |
| 8-K | 8-K | 0001628280-25-045157 | Oct 16, 2025 | — |
| 4 | FORM 4 | 0001470831-25-000250 | Oct 3, 2025 | Oct 1, 2025 |
| 4 | FORM 4 | 0001470831-25-000249 | Oct 3, 2025 | Oct 1, 2025 |
| 8-K | 8-K | 0001628280-25-043290 | Oct 1, 2025 | — |
| 8-K | 8-K | 0001628280-25-042245 | Sep 22, 2025 | — |
| 4 | FORM 4 | 0001470831-25-000223 | Sep 19, 2025 | Sep 18, 2025 |
| 10-Q | 10-Q | 0001628280-25-038587 | Aug 7, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0001628280-25-038576 | Aug 7, 2025 | — |
| SCHEDULE 13G/A | — | 0002052113-25-002489 | Jul 16, 2025 | — |
| 4/A | FORM 4/A | 0001662579-25-000057 | Jul 15, 2025 | Jul 10, 2025 |
| 4 | FORM 4 | 0001662579-25-000055 | Jul 14, 2025 | Jul 10, 2025 |
| 4 | FORM 4 | 0001662579-25-000053 | Jul 2, 2025 | Jul 1, 2025 |
| 4 | FORM 4 | 0001662579-25-000052 | Jul 2, 2025 | Jul 1, 2025 |
| 4 | FORM 4 | 0001662579-25-000049 | Jun 20, 2025 | Jun 18, 2025 |
| 4 | FORM 4 | 0001662579-25-000048 | Jun 20, 2025 | Jun 18, 2025 |
| 4 | FORM 4 | 0001662579-25-000047 | Jun 20, 2025 | Jun 18, 2025 |
| 4 | FORM 4 | 0001662579-25-000046 | Jun 20, 2025 | Jun 18, 2025 |
| 4 | FORM 4 | 0001662579-25-000045 | Jun 20, 2025 | Jun 18, 2025 |