Crescent Biopharma, Inc. SEC filings CBIO
Crescent Biopharma, Inc. has 676 filings in SEC EDGAR's recent list, going back to Jul 10, 2003. Its latest annual report, Form 10-K, was filed on Feb 26, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Jul 30, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 15, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 27, 2026 | — |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 144 | Notice of proposed sale | Sep 17, 2026 | — |
| 144 | Notice of proposed sale | Sep 17, 2026 | — |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| 144 | Notice of proposed sale | Sep 16, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 20, 2026 | — |
| 4 | Insider transaction | Jul 20, 2026 | Jul 16, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 22, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2026 | — |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 11, 2025 | — |
| 4 | Insider transaction | Dec 10, 2025 | Dec 8, 2025 |
| 4 | Insider transaction | Dec 10, 2025 | Dec 8, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 8, 2025 | — |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 9, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 20, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Jul 16, 2025 | Jul 16, 2025 |
| 3 | Initial insider ownership | Jul 15, 2025 | Jul 7, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 8, 2025 | — |
| 3 | Initial insider ownership | Jun 30, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 30, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 23, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Jun 23, 2025 | — |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 23, 2025 | Jun 13, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 23, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 20, 2025 | — |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SC 13G | Ownership over 5% (passive) | Nov 27, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 6, 2024 | — |
| SC 13D | Ownership over 5% (active) | Nov 4, 2024 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 15, 2024 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2024 | — |
| 4 | Insider transaction | Aug 9, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 7, 2024 | Aug 5, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Jul 30, 2024 | Jul 26, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 29, 2024 | — |
| 3 | Initial insider ownership | Jul 29, 2024 | Jul 25, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | May 8, 2024 | — |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | May 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 29, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 29, 2023 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 29, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 29, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2024 | — |
| 4 | Insider transaction | Jan 17, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 29, 2023 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 29, 2023 |
| 4 | Insider transaction | Jan 2, 2024 | Dec 29, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Sep 25, 2023 | Sep 21, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 18, 2023 | May 17, 2023 |
| 144 | Notice of proposed sale | May 17, 2023 | — |
| 4 | Insider transaction | May 11, 2023 | May 10, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 8, 2023 |
| 3 | Initial insider ownership | Mar 31, 2023 | Mar 23, 2023 |
| 3 | Initial insider ownership | Mar 31, 2023 | Mar 23, 2023 |
| 4 | Insider transaction | Feb 28, 2023 | Feb 24, 2023 |
| 4 | Insider transaction | Feb 23, 2023 | Feb 21, 2023 |
| 4 | Insider transaction | Feb 17, 2023 | Feb 15, 2023 |
| 4 | Insider transaction | Feb 13, 2023 | Feb 9, 2023 |
| 3 | Initial insider ownership | Feb 13, 2023 | Feb 9, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 10, 2023 | — |
| 5 | Annual insider ownership | Feb 6, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Jan 30, 2023 | Jan 27, 2023 |
| 4 | Insider transaction | Jan 27, 2023 | Jan 25, 2023 |
| 4 | Insider transaction | Jan 20, 2023 | Jan 19, 2023 |
| 4 | Insider transaction | Jan 20, 2023 | Jan 19, 2023 |
| 4 | Insider transaction | Jan 20, 2023 | Jan 19, 2023 |
| 4 | Insider transaction | Jan 6, 2023 | Jan 5, 2023 |
| 4 | Insider transaction | Jan 4, 2023 | Dec 30, 2022 |
| 4 | Insider transaction | Dec 27, 2022 | Dec 22, 2022 |
| 4 | Insider transaction | Nov 18, 2022 | Nov 17, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 14, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 11, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 11, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 11, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 11, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 11, 2022 |
| 4 | Insider transaction | Sep 7, 2022 | Sep 2, 2022 |
| 3 | Initial insider ownership | Sep 7, 2022 | Sep 2, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| 4 | Insider transaction | Mar 10, 2022 | Mar 9, 2022 |
| 4 | Insider transaction | Mar 10, 2022 | Mar 9, 2022 |
| 4 | Insider transaction | Mar 10, 2022 | Mar 9, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2022 | — |
| 4 | Insider transaction | Jan 25, 2022 | Jan 21, 2022 |
| 4 | Insider transaction | Jan 25, 2022 | Jan 21, 2022 |
| 4 | Insider transaction | Jan 25, 2022 | Jan 21, 2022 |
| 4 | Insider transaction | Jan 25, 2022 | Jan 21, 2022 |
| 4 | Insider transaction | Nov 18, 2021 | Nov 16, 2021 |
| 3 | Initial insider ownership | Aug 10, 2021 | Aug 6, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 12, 2021 | — |
| 4 | Insider transaction | May 27, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 18, 2021 |
| 3 | Initial insider ownership | Mar 8, 2021 | Mar 1, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2021 | — |
| 4 | Insider transaction | Jan 22, 2021 | Jan 20, 2021 |
| 4 | Insider transaction | Jan 22, 2021 | Jan 20, 2021 |
| 4 | Insider transaction | Jan 22, 2021 | Jan 20, 2021 |
| 4 | Insider transaction | Jan 22, 2021 | Jan 20, 2021 |
| 4 | Insider transaction | Jan 22, 2021 | Jan 20, 2021 |
| 4 | Insider transaction | Dec 30, 2020 | Dec 28, 2020 |
| 4 | Insider transaction | Dec 17, 2020 | Dec 16, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 10, 2020 | — |
| 4 | Insider transaction | Nov 6, 2020 | Nov 4, 2020 |
| 4 | Insider transaction | Nov 3, 2020 | Oct 30, 2020 |
| SC 13G | Ownership over 5% (passive) | Jul 20, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2020 | — |
| 4 | Insider transaction | May 27, 2020 | May 22, 2020 |
| 4 | Insider transaction | May 27, 2020 | May 22, 2020 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- CBIO (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Cayman Islands
- Headquarters
- Waltham, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1253689
- Former names
- GLYCOMIMETICS INC (until Jun 23, 2025)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.