TScan Therapeutics, Inc. (TCRX)
Nasdaq: TCRX · Biological Products, (No Diagnostic Substances) · Waltham, MA · filing with the SEC since 2019
Who runs TScan Therapeutics, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Macbeath Gavin
Chief Executive Officer. First filing Jul 2021, latest Oct 2, 2026, 1 filing in all.
Officers reporting now
5
of 16 people with a filing in the last fifteen months
Directors reporting now
11
24 people on the record since 2021
Officerssales are open-market, Oct 2, 2025 to Oct 2, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Macbeath Gavin | Chief Executive Officer | Jul 2021 | Oct 2, 2026 | none |
| Zdraveski Zoran | See Remarks | Sep 2021 | Oct 2, 2026 | none |
| Dworak Leiden | Principal Accounting Officer and Vice President, Finance | Jul 2023 | Jan 22, 2026 | none |
| Amello Jason | Chief Financial Officer | Feb 2024 | Jan 22, 2026 | none |
| Louis Chrystal | Chief Medical Officer | May 2024 | Jan 22, 2026 | none |
Directorssales are open-market, Oct 2, 2025 to Oct 2, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| 667, L.P. | director | Jul 2021 | May 22, 2026 | none |
| Baker Bros. Advisors (Gp) LLC | director | Jul 2021 | May 22, 2026 | none |
| Baker Bros. Advisors LP | director | Jul 2021 | May 22, 2026 | none |
| Baker Brothers Life Sciences LP | director | Jul 2021 | May 22, 2026 | none |
| Baker Felix | director | Jul 2021 | May 22, 2026 | none |
| Baker Julian | director | Jul 2021 | May 22, 2026 | none |
| Dorton Katina | director | Jul 2021 | May 22, 2026 | none |
| Gruia Gabriela | director | Jul 2021 | May 22, 2026 | none |
| Klencke Barbara | director | Apr 2023 | May 22, 2026 | none |
| Nicholson Garry A | director | Jun 2024 | May 22, 2026 | none |
| Woods Keith | director | Dec 2023 | May 22, 2026 | none |
Owners of more than 10% of a classsales are open-market, Oct 2, 2025 to Oct 2, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Lynx1 Capital Management LP | 10% owner | May 2023 | Dec 23, 2025 | none |
| Nichols Weston | 10% owner | May 2023 | Dec 23, 2025 | none |
Earlier names on the record9, newest filing first
Barberich Timothy J · director · last filing Dec 2023Silver Brian M. · officer · last filing Jun 2023Barton Debora · officer · last filing Jun 2023Ecor1 Capital, LLC · 10% owner · last filing Jun 2023Southwell David P · officer · last filing Feb 2023Desmarais William · officer · last filing Jul 2022Harel Ittai · director · last filing Jun 2022Westphal Christoph H · director · last filing Jul 2021Biggar Stephen R · director · last filing Jul 2021
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.