Company facts
- Headquarters
- Waltham, Massachusetts
- Most recent report
- 8-K, filed Oct 16, 2026
- Incorporated
- Delaware
- Filings on record
- 333 filings
- On EDGAR
- CIK 1783328
- Fiscal year ends
- December
- Filer status
- Emerging growth company
Financials 8 of 22
News 8 of 65
Prospectuses and Registrations 8 of 30
- S-8 Registration statement for an employee plan Mar 4, 2026
- S-8 Registration statement for an employee plan Mar 5, 2025
- S-3 Shelf registration statement Mar 5, 2025
- 424B5 Prospectus supplement for an offering Dec 26, 2024
- S-8 Registration statement for an employee plan Jun 14, 2024
- 424B5 Prospectus supplement for an offering Apr 18, 2024
- FWP Free writing prospectus Apr 17, 2024
- 424B5 Prospectus supplement for an offering Apr 16, 2024
Proxies 8 of 12
- PRE 14A Preliminary proxy statement Oct 16, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 17, 2026
- PRE 14A Preliminary proxy statement Apr 7, 2026
- DEFA14A Extra proxy material May 14, 2025
- DEF 14A Proxy statement for a shareholder vote May 14, 2025
- DEFA14A Extra proxy material Apr 30, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 30, 2024
- DEFA14A Extra proxy material Jun 2, 2023
Ownership 8 of 164
- 4 Insider reported a trade Oct 2, 2026
- 4 Insider reported a trade Oct 2, 2026
- SCHEDULE 13G Large holder reported a passive stake Sep 25, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 14, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 14, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
Other 8 of 40
- ARS Annual report sent to shareholders Apr 17, 2026
- ARS Annual report sent to shareholders May 14, 2025
- EFFECT Notice that a registration became effective Mar 14, 2025
- CORRESP Reply to SEC staff Mar 12, 2025
- UPLOAD Comment letter from SEC staff Mar 11, 2025
- ARS Annual report sent to shareholders Apr 30, 2024
- EFFECT Notice that a registration became effective Apr 12, 2024
- CORRESP Reply to SEC staff Apr 10, 2024
Everything here comes from TScan Therapeutics, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.