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 |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Acquisition or sale of assets
|
Nov 5, 2026 | Nov 5, 2026 |
| 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 | — |
| 8-K |
Current report
Other events
|
Sep 29, 2026 | Sep 29, 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 | — |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 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 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jun 10, 2026 | Jun 8, 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 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| ARS | Annual report to shareholders | Apr 24, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 24, 2026 | — |
| DEF 14A | Proxy statement | Apr 24, 2026 | Jun 8, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 23, 2026 | Apr 23, 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 |
| S-8 POS | Filing | Mar 9, 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 | — |
| S-8 | Employee stock plan registration | Feb 27, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 27, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 26, 2026 | Feb 26, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 24, 2026 | Feb 23, 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 | — |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Other events
|
Oct 30, 2025 | Oct 29, 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 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 7, 2025 | Aug 7, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| EFFECT | Filing | Jul 15, 2025 | — |
| 424B3 | Prospectus | Jul 15, 2025 | — |
| CORRESP | Letter to the SEC | Jul 11, 2025 | — |
| UPLOAD | Letter from the SEC | Jul 10, 2025 | — |
| EFFECT | Filing | Jul 8, 2025 | — |
| EFFECT | Filing | Jul 8, 2025 | — |
| POS AM | Filing | Jul 7, 2025 | — |
| POS AM | Filing | Jul 7, 2025 | — |
| S-3 | Shelf registration | Jul 7, 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 |
| 424B5 | Prospectus supplement | Jun 11, 2025 | — |
| 424B5 | Prospectus supplement | Jun 11, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 6, 2025 | Jun 6, 2025 |
| 424B5 | Prospectus supplement | May 19, 2025 | — |
| 424B5 | Prospectus supplement | May 19, 2025 | — |
| 8-K |
Current report
Other events
|
May 19, 2025 | May 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| 424B3 | Prospectus | May 8, 2025 | — |
| 424B3 | Prospectus | May 8, 2025 | — |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| ARS | Annual report to shareholders | Apr 25, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 25, 2025 | — |
| DEF 14A | Proxy statement | Apr 25, 2025 | Jun 6, 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 | — |
| EFFECT | Filing | Apr 3, 2025 | — |
| EFFECT | Filing | Apr 2, 2025 | — |
| CORRESP | Letter to the SEC | Mar 31, 2025 | — |
| UPLOAD | Letter from the SEC | Mar 31, 2025 | — |
| POS AM | Filing | Mar 27, 2025 | — |
| S-1 | Registration statement | Mar 26, 2025 | — |
| S-8 | Employee stock plan registration | Mar 20, 2025 | — |
| 10-K | Annual report | Mar 20, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 20, 2025 | Mar 20, 2025 |
| D | Filing | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| 424B5 | Prospectus supplement | Feb 12, 2025 | — |
| 424B5 | Prospectus supplement | Feb 12, 2025 | — |
| 424B3 | Prospectus | Feb 12, 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 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Feb 3, 2025 | Feb 3, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 30, 2025 | Jan 30, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 13, 2025 | Jan 13, 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 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 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 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 19, 2024 | Sep 19, 2024 |
| S-8 POS | Filing | Aug 27, 2024 | — |
| S-8 | Employee stock plan registration | Aug 21, 2024 | — |
| 8-K |
Current report
Results of operations
|
Aug 14, 2024 | Aug 14, 2024 |
| 424B3 | Prospectus | Aug 14, 2024 | — |
| 10-Q | Quarterly report | Aug 14, 2024 | Jun 30, 2024 |
| 424B5 | Prospectus supplement | Jul 31, 2024 | — |
| EFFECT | Filing | Jul 30, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jul 30, 2024 | Jul 30, 2024 |
| 424B3 | Prospectus | Jul 30, 2024 | — |
| CORRESP | Letter to the SEC | Jul 26, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 26, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 22, 2024 | — |
| S-1 | Registration statement | Jul 19, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jul 10, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Jul 5, 2024 | Jun 28, 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 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 26, 2024 | Jun 25, 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 |
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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.