Tectonic Therapeutic, Inc. SEC filings TECX
Tectonic Therapeutic, Inc. has 582 filings in SEC EDGAR's recent list, going back to Aug 3, 2016. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (acquisition or sale of assets). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 29, 2026 | — |
| 4 | Insider transaction | Oct 28, 2026 | Oct 26, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 25, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 25, 2026 |
| 144 | Notice of proposed sale | Sep 30, 2026 | — |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 144 | Notice of proposed sale | Aug 27, 2026 | — |
| 4 | Insider transaction | Aug 26, 2026 | Aug 25, 2026 |
| 144 | Notice of proposed sale | Aug 21, 2026 | — |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 4 | Insider transaction | Jul 1, 2026 | Jun 30, 2026 |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 4 | Insider transaction | Jun 23, 2026 | Jun 20, 2026 |
| 4 | Insider transaction | Jun 12, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 8, 2026 |
| 3 | Initial insider ownership | Jun 10, 2026 | Jun 8, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 3 | Initial insider ownership | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| 144 | Notice of proposed sale | Mar 6, 2026 | — |
| 144 | Notice of proposed sale | Mar 6, 2026 | — |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4/A | Filing | Mar 5, 2026 | Feb 11, 2026 |
| 144 | Notice of proposed sale | Mar 4, 2026 | — |
| 144 | Notice of proposed sale | Mar 3, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 27, 2026 | — |
| 4 | Insider transaction | Feb 12, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 12, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 4, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 29, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 22, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Jun 24, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 9, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| 4 | Insider transaction | Apr 11, 2025 | Apr 9, 2025 |
| 4 | Insider transaction | Apr 9, 2025 | Apr 7, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 7, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 7, 2025 | — |
| 4 | Insider transaction | Apr 7, 2025 | Apr 7, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 7, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 10, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 10, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 7, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 7, 2025 | — |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 8, 2025 | — |
| 4 | Insider transaction | Dec 11, 2024 | Dec 9, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 4 | Insider transaction | Dec 5, 2024 | Dec 3, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 28, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 24, 2024 | — |
| 4 | Insider transaction | Oct 24, 2024 | Oct 22, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 26, 2024 | — |
| 4 | Insider transaction | Sep 26, 2024 | Sep 24, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 22, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jul 10, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jul 1, 2024 | — |
| SC 13D | Ownership over 5% (active) | Jun 27, 2024 | — |
| SC 13D | Ownership over 5% (active) | Jun 26, 2024 | — |
| SC 13D | Ownership over 5% (active) | Jun 25, 2024 | — |
| 4 | Insider transaction | Jun 25, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 20, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 20, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | May 21, 2024 | — |
| 4 | Insider transaction | May 15, 2024 | May 13, 2024 |
| 3/A | Filing | May 15, 2024 | May 13, 2024 |
| 3 | Initial insider ownership | May 15, 2024 | May 13, 2024 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 23, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2024 | — |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 24, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jul 24, 2023 | — |
| 144 | Notice of proposed sale | Jul 14, 2023 | — |
| 4 | Insider transaction | Jul 3, 2023 | Jul 1, 2023 |
| 4 | Insider transaction | Jun 13, 2023 | Jun 12, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 144 | Notice of proposed sale | Jun 7, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jun 6, 2023 | — |
| 144 | Notice of proposed sale | Jun 5, 2023 | — |
| 144 | Notice of proposed sale | May 25, 2023 | — |
| 144 | Notice of proposed sale | May 24, 2023 | — |
| 144 | Notice of proposed sale | May 24, 2023 | — |
| 144 | Notice of proposed sale | May 24, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 17, 2023 | — |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2023 | — |
| 4 | Insider transaction | Jan 26, 2023 | Dec 28, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2023 | — |
| 4 | Insider transaction | Dec 28, 2022 | Dec 23, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| SC 13G | Ownership over 5% (passive) | Aug 1, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jul 8, 2022 | — |
| 3 | Initial insider ownership | Jun 17, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | May 10, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 9, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2022 | — |
| 4 | Insider transaction | Feb 4, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 4, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 4, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 4, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 4, 2022 | Feb 2, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 3, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 7, 2022 | — |
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
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- TECX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- NY
- Headquarters
- Watertown, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1681087
- Former names
- AvroBio, Inc. (until Jun 18, 2024); AVROBIO, Inc. (until Jun 18, 2024)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.