Company · CIK 1662579

# C4 Therapeutics, Inc.

| CIK | [1662579](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001662579) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 2836 — Biological Products, (No Diagnostic Substances) |
| Incorporated in | DE |
| Business address | MA |
| Listed | CCCC (Nasdaq) |
| First annual or quarterly report | 2020-11-12 |

## Offerings

 6 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-291696 | Shelf Effective | 2025-11-21 | 2025-12-10 | 3 |
| 333-282933 | Shelf Effective | 2024-10-31 | 2025-10-16 | 4 |
| 333-282934 | Shelf Effective | 2024-10-31 | 2024-11-13 | 2 |
| 333-260972 | Shelf Effective | 2021-11-10 | 2023-05-03 | 2 |
| 333-257067 | Registered company Final prospectus | 2021-06-14 | 2021-06-21 | 3 |
| 333-248719 | IPO Final prospectus | 2020-09-10 | 2020-10-02 | 4 |

## Filings

 20

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2025-12-10 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1662579/999999999525003638/9999999995-25-003638-index.htm) Declared effective | 333-291696 | 9999999995-25-003638 |
| 2025-12-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1662579/000119312525314449/0001193125-25-314449-index.htm) Shelf takedown | 333-291696 | 0001193125-25-314449 |
| 2025-11-21 | [S-3](https://www.sec.gov/Archives/edgar/data/1662579/000162828025053575/0001628280-25-053575-index.htm) Shelf registered | 333-291696 | 0001628280-25-053575 |
| 2025-10-16 | [424B5](https://www.sec.gov/Archives/edgar/data/1662579/000119312525241586/0001193125-25-241586-index.htm) Shelf takedown | 333-282933 | 0001193125-25-241586 |
| 2024-11-15 | [424B5](https://www.sec.gov/Archives/edgar/data/1662579/000162828024048088/0001628280-24-048088-index.htm) Shelf takedown | 333-282933 | 0001628280-24-048088 |
| 2024-11-13 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1662579/999999999524003480/9999999995-24-003480-index.htm) Declared effective | 333-282934 | 9999999995-24-003480 |
| 2024-11-13 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1662579/999999999524003479/9999999995-24-003479-index.htm) Declared effective | 333-282933 | 9999999995-24-003479 |
| 2024-10-31 | [S-3](https://www.sec.gov/Archives/edgar/data/1662579/000162828024044613/0001628280-24-044613-index.htm) Shelf registered | 333-282934 | 0001628280-24-044613 |
| 2024-10-31 | [S-3](https://www.sec.gov/Archives/edgar/data/1662579/000162828024044612/0001628280-24-044612-index.htm) Shelf registered | 333-282933 | 0001628280-24-044612 |
| 2023-05-03 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1662579/999999999523001249/9999999995-23-001249-index.htm) Declared effective | 333-260972 | 9999999995-23-001249 |
| 2021-11-10 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1662579/000119312521326210/0001193125-21-326210-index.htm) Shelf registered | 333-260972 | 0001193125-21-326210 |
| 2021-06-21 | [424B4](https://www.sec.gov/Archives/edgar/data/1662579/000119312521194217/0001193125-21-194217-index.htm) Final prospectus | 333-257067 | 0001193125-21-194217 |
| 2021-06-16 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1662579/999999999521002375/9999999995-21-002375-index.htm) Declared effective | 333-257067 | 9999999995-21-002375 |
| 2021-06-14 | [S-1](https://www.sec.gov/Archives/edgar/data/1662579/000119312521190020/0001193125-21-190020-index.htm) Registration filed | 333-257067 | 0001193125-21-190020 |
| 2021-05-19 | [DRS](https://www.sec.gov/Archives/edgar/data/1662579/000095012321007184/0000950123-21-007184-index.htm) Draft made public | 377-04905 | 0000950123-21-007184 |
| 2020-10-02 | [424B4](https://www.sec.gov/Archives/edgar/data/1662579/000119312520262629/0001193125-20-262629-index.htm) Final prospectus | 333-248719 | 0001193125-20-262629 |
| 2020-10-01 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1662579/999999999520002652/9999999995-20-002652-index.htm) Declared effective | 333-248719 | 9999999995-20-002652 |
| 2020-09-28 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1662579/000119312520255106/0001193125-20-255106-index.htm) Amendment | 333-248719 | 0001193125-20-255106 |
| 2020-09-10 | [S-1](https://www.sec.gov/Archives/edgar/data/1662579/000119312520243234/0001193125-20-243234-index.htm) Registration filed | 333-248719 | 0001193125-20-243234 |
| 2020-08-06 | [DRS](https://www.sec.gov/Archives/edgar/data/1662579/000095012320007732/0000950123-20-007732-index.htm) Draft made public | 377-03378 | 0000950123-20-007732 |

[All filings of this company](https://equitycapital.markets/filings?cik=1662579) · [CSV](https://equitycapital.markets/filings.csv?cik=1662579)

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Source page: https://equitycapital.markets/company/1662579 · Data: U.S. SEC EDGAR · CC BY 4.0