TScan Therapeutics, Inc. SEC filings TCRX
TScan Therapeutics, Inc. has 334 filings in SEC EDGAR's recent list, going back to Jul 26, 2019. Its latest annual report, Form ARS, was filed on Apr 17, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 16, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 25, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | Jan 22, 2026 | Jan 20, 2026 |
| 4 | Insider transaction | Jan 22, 2026 | Jan 20, 2026 |
| 4 | Insider transaction | Jan 22, 2026 | Jan 20, 2026 |
| 4 | Insider transaction | Jan 22, 2026 | Jan 20, 2026 |
| 4 | Insider transaction | Jan 22, 2026 | Jan 20, 2026 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 19, 2025 |
| 3 | Initial insider ownership | Aug 22, 2025 | Aug 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 16, 2025 | — |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| 4 | Insider transaction | Feb 11, 2025 | Jan 12, 2024 |
| 4 | Insider transaction | Feb 11, 2025 | Jan 12, 2024 |
| 4 | Insider transaction | Feb 11, 2025 | Jan 12, 2024 |
| 4 | Insider transaction | Feb 11, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Feb 11, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 21, 2024 | — |
| 4 | Insider transaction | Sep 24, 2024 | Sep 23, 2024 |
| 4 | Insider transaction | Aug 27, 2024 | Aug 23, 2024 |
| 4 | Insider transaction | Aug 27, 2024 | Aug 23, 2024 |
| 144 | Notice of proposed sale | Aug 23, 2024 | — |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 3 | Initial insider ownership | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 3 | Initial insider ownership | May 2, 2024 | Apr 22, 2024 |
| SC 13G | Ownership over 5% (passive) | Apr 29, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 23, 2024 | — |
| 4 | Insider transaction | Apr 23, 2024 | Apr 19, 2024 |
| 4 | Insider transaction | Apr 23, 2024 | Apr 19, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2024 | — |
| 4 | Insider transaction | Feb 2, 2024 | Feb 1, 2024 |
| 3 | Initial insider ownership | Feb 2, 2024 | Jan 29, 2024 |
| 4 | Insider transaction | Dec 21, 2023 | Dec 18, 2023 |
| 4 | Insider transaction | Dec 18, 2023 | Dec 14, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 6, 2023 |
| 3 | Initial insider ownership | Dec 8, 2023 | Dec 6, 2023 |
| 4 | Insider transaction | Jul 24, 2023 | Jul 21, 2023 |
| 3 | Initial insider ownership | Jul 24, 2023 | Jul 21, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 12, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 8, 2023 | — |
| 4 | Insider transaction | Jun 6, 2023 | Jun 2, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 5, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jun 5, 2023 | — |
| 3 | Initial insider ownership | Jun 5, 2023 | May 26, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | May 31, 2023 |
| 3 | Initial insider ownership | Jun 2, 2023 | May 31, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 2, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 2, 2023 | — |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 144 | Notice of proposed sale | May 15, 2023 | — |
| 4 | Insider transaction | Apr 10, 2023 | Apr 6, 2023 |
| 3 | Initial insider ownership | Apr 10, 2023 | Apr 6, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | Feb 6, 2023 | Feb 2, 2023 |
| 4 | Insider transaction | Feb 6, 2023 | Feb 2, 2023 |
| 4 | Insider transaction | Feb 6, 2023 | Feb 2, 2023 |
| 4 | Insider transaction | Feb 6, 2023 | Feb 2, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 3, 2023 | — |
| 4 | Insider transaction | Dec 29, 2022 | Dec 27, 2022 |
| SC 13G | Ownership over 5% (passive) | Sep 30, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 15, 2022 | — |
| 4 | Insider transaction | Jul 27, 2022 | Jul 25, 2022 |
| 4 | Insider transaction | Jul 27, 2022 | Jul 25, 2022 |
| 4 | Insider transaction | Jul 27, 2022 | Jul 25, 2022 |
| 4 | Insider transaction | Jul 27, 2022 | Jul 25, 2022 |
| 4 | Insider transaction | Jul 27, 2022 | Jul 25, 2022 |
| 4 | Insider transaction | Jul 7, 2022 | Jul 5, 2022 |
| 3 | Initial insider ownership | Jul 7, 2022 | Jul 5, 2022 |
| 4 | Insider transaction | Jun 3, 2022 | Jun 1, 2022 |
| 4 | Insider transaction | Jun 3, 2022 | Jun 1, 2022 |
| 4 | Insider transaction | Jun 3, 2022 | Jun 1, 2022 |
| 4 | Insider transaction | Jun 3, 2022 | Jun 1, 2022 |
| 4 | Insider transaction | Jun 3, 2022 | Jun 1, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 18, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | May 12, 2022 | — |
| 4 | Insider transaction | May 12, 2022 | May 10, 2022 |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2022 | — |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Dec 27, 2021 | Dec 23, 2021 |
| 4 | Insider transaction | Sep 27, 2021 | Sep 23, 2021 |
| 4 | Insider transaction | Sep 22, 2021 | Sep 21, 2021 |
| 4 | Insider transaction | Sep 22, 2021 | Sep 20, 2021 |
| 4 | Insider transaction | Sep 13, 2021 | Sep 9, 2021 |
| 4 | Insider transaction | Sep 9, 2021 | Sep 7, 2021 |
| 3 | Initial insider ownership | Sep 9, 2021 | Sep 7, 2021 |
| 4 | Insider transaction | Sep 9, 2021 | Sep 8, 2021 |
| 4 | Insider transaction | Aug 31, 2021 | Aug 27, 2021 |
| SC 13G | Ownership over 5% (passive) | Jul 28, 2021 | — |
| 4 | Insider transaction | Jul 22, 2021 | Jul 20, 2021 |
| SC 13D | Ownership over 5% (active) | Jul 22, 2021 | — |
| 4 | Insider transaction | Jul 22, 2021 | Jul 20, 2021 |
| 4 | Insider transaction | Jul 22, 2021 | Jul 20, 2021 |
| 4 | Insider transaction | Jul 22, 2021 | Jul 15, 2021 |
| 4 | Insider transaction | Jul 16, 2021 | Jul 15, 2021 |
| 4 | Insider transaction | Jul 16, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
| 3 | Initial insider ownership | Jul 15, 2021 | Jul 15, 2021 |
Showing 164 filings. 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
- TCRX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Waltham, MA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1783328
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.