TScan Therapeutics, Inc.
TCRX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001783328
No open-market purchases or sales by TScan Therapeutics, Inc. insiders were filed in the last 90 days; 60 institutions reported holding it in 13F filings for Q2 2026, worth $35.6M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by TScan Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for TScan Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Baker Julian | Director | 2,528,583Indirect | May 22, 2026 | 1 |
| Baker Felix | Director | 2,528,583Indirect | May 22, 2026 | 1 |
| Baker Bros. Advisors LP | Director | 2,528,583Indirect | May 22, 2026 | 1 |
| Baker Brothers Life Sciences LP | Director | 2,528,583Indirect | May 22, 2026 | 1 |
| 667, L.P. | Director | 2,528,583Indirect | May 22, 2026 | 1 |
| Baker Bros. Advisors (GP) LLC | Director | 2,528,583Indirect | May 22, 2026 | 1 |
| Dorton Katina | Director | – | May 22, 2026 | 1 |
| Nicholson Garry A | Director | – | May 22, 2026 | 1 |
| Klencke Barbara | Director | 45,000 | May 22, 2026 | 1 |
| Gruia Gabriela | Director | – | May 22, 2026 | 1 |
| Woods Keith | Director | – | May 22, 2026 | 1 |
| Amello Jason | Chief Financial Officer | – | Jan 22, 2026 | 1 |
| MacBeath Gavin | Chief Executive Officer | 49,767 | Jan 22, 2026 | 1 |
| Zdraveski Zoran | See Remarks | 4,716 | Jan 22, 2026 | 1 |
| Dworak Leiden | See Remarks | – | Jan 22, 2026 | 1 |
| Louis Chrystal | Chief Medical Officer | – | Jan 22, 2026 | 1 |
| Nichols Weston | 10% Owner | 8,019,148Indirect | Dec 23, 2025 | 1 |
| Lynx1 Capital Management LP | 10% Owner | 8,019,148Indirect | Dec 23, 2025 | 1 |
| Barberich Timothy J | Director | 67,027 | Dec 21, 2023 | 0 |
| Silver Brian M. | Chief Financial Officer | 32,885 | Jun 15, 2023 | 0 |
| Barton Debora | Chief Medical Officer | – | Jun 15, 2023 | 0 |
| Southwell David P | Chief Executive Officer | 171,569 | Feb 6, 2023 | 0 |
| Desmarais William | Chief Business Officer | 2,500 | Jul 27, 2022 | 0 |
| Harel Ittai | Director | – | Jun 3, 2022 | 0 |
| Westphal Christoph H | 10% Owner | 1,278,838Indirect | Jul 22, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 23, 2025 (view filing)6:17 PM ET | Dec 19 | 4 days | Nichols Weston and 1 other10% Owner | PPurchaseCommon stock, $0.0001 par value per share ("Common Stock") | +80.1K | $0.8989 | +$72.0K | +1.0%7.94M after | |
| Dec 23, 2025 (view filing)6:17 PM ET | Dec 22-23 | 1 day | Nichols Weston and 1 other10% Owner | PPurchase | +81.7K | $0.8999 | +$73.6K | +1.0%8.02M after | 2 lots |
| May 21, 2025 (view filing)4:49 PM ET | May 19 | 2 days | Nichols Weston and 1 other10% Owner | PPurchaseCommon stock, $0.0001 par value per share ("Common Stock") | +1.39M | $1.20 | +$1.67M | +25.9%6.75M after | |
| May 21, 2025 (view filing)4:49 PM ET | May 20 | 1 day | Nichols Weston and 1 other10% Owner | PPurchase | +1.20M | $1.20 | +$1.44M | +17.8%7.95M after | |
| Dec 30, 2024 (view filing)4:15 PM ET | Dec 26 | 4 days | Nichols Weston and 1 other10% Owner | PPurchase | +7.50M | $4.00 | +$30.0M | –7.50M after | Derivative |
| Dec 16, 2024 (view filing)4:26 PM ET | Dec 12 | 4 days | Nichols Weston and 1 other10% Owner | PPurchaseCommon stock, $0.0001 par value per share ("Common Stock") | +31.8K | $3.01 | +$95.6K | +0.6%5.26M after | |
| Dec 16, 2024 (view filing)4:26 PM ET | Dec 13 | 3 days | Nichols Weston and 1 other10% Owner | PPurchase | +100.0K | $2.90 | +$290.1K | +1.9%5.36M after | |
| Nov 19, 2024 (view filing)4:26 PM ET | Nov 15 | 4 days | Nichols Weston and 1 other10% Owner | PPurchaseCommon stock, $0.0001 par value per share | +947 | $4.34 | +$4.11K | 0.0%5.23M after | |
| Sep 24, 2024 (view filing) | Sep 23 | 1 day | Klencke BarbaraDirector | PPurchaseVoting Common Stock | +5.00K | $5.29 | +$26.4K | +12.5%45.0K after | |
| Aug 27, 2024 (view filing) | Aug 23-26 | 4 days | Klencke BarbaraDirector | PPurchaseVoting Common Stock | +10.0K | $5.61 | +$56.1K | +33.3%40.0K after | 2 lots |
| Aug 27, 2024 (view filing) | Aug 23 | 4 days | Zdraveski ZoranSee Remarks | SSaleVoting Common Stock | −164.7K | $5.78 | −$951.9K | −97.2%4.72K after | |
| Apr 23, 2024 (view filing)4:17 PM ET | Apr 19 | 4 days | Baker Julian and 5 othersDirector | PPurchase | +9.68M | $7.13 | +$69.0M | –43.2M after | Derivative2 lots |
| Apr 23, 2024 (view filing)4:15 PM ET | Apr 19 | 4 days | Nichols Weston and 1 other10% Owner | PPurchase | +5.00M | $7.13 | +$35.6M | –5.00M after | Derivative |
| Dec 21, 2023 (view filing) | Dec 18-19 | 3 daysLate | Barberich Timothy JDirector | PPurchaseVoting Common Stock | +29.1K | $4.89 | +$142.6K | +76.9%67.0K after | 2 lots |
| Dec 18, 2023 (view filing) | Dec 14 | 4 days | Klencke BarbaraDirector | PPurchaseVoting Common Stock | +5.00K | $5.08 | +$25.4K | +20.0%30.0K after | |
| Jun 6, 2023 (view filing) | Jun 2 | 4 days | Barberich Timothy JDirector | PPurchaseVoting Common Stock | +37.9K | $2.63 | +$99.6K | New position37.9K after | |
| Jun 2, 2023 (view filing)5:35 PM ET | May 31 | 2 days | Nichols Weston and 1 other10% Owner | SSaleCommon stock, $0.0001 par value per share Common Stock | −10.0K | $2.51 | −$25.1K | −0.2%5.24M after | |
| Jun 2, 2023 (view filing)5:35 PM ET | May 31 | 2 days | Nichols Weston and 1 other10% Owner | SSale | −15.4K | $2.52 | −$38.8K | −0.3%5.22M after | 2 lots |
| Dec 29, 2022 (view filing) | Dec 27-28 | 2 days | Silver Brian M.Chief Financial Officer | PPurchaseVoting Common Stock | +6.00K | $1.53 | +$9.19K | +22.3%32.9K after | 2 lots |
| May 20, 2022 (view filing) | May 18 | 2 days | Southwell David PChief Executive Officer | PPurchaseVoting Common Stock | +25.0K | $3.59 | +$89.8K | +17.1%171.6K after | 2 lots |
| May 12, 2022 (view filing)4:41 PM ET | May 10-11 | 2 days | Baker Julian and 5 othersDirector, 10% Owner | PPurchase | +1.36M | $1.88 | +$2.56M | +116.3%2.53M after | 8 lots |
| Mar 28, 2022 (view filing) | Mar 24 | 4 days | Silver Brian M.Chief Financial Officer | PPurchaseVoting Common Stock | +15.0K | $3.40 | +$51.0K | +126.2%26.9K after | |
| Sep 27, 2021 (view filing) | Sep 23 | 4 days | Zdraveski ZoranChief Legal Officer | PPurchaseVoting Common Stock | +4.72K | $7.48 | +$35.3K | New position4.72K after | |
| Sep 22, 2021 (view filing) | Sep 21 | 1 day | Silver Brian M.Chief Financial Officer | PPurchaseVoting Common Stock | +5.00K | $6.32 | +$31.6K | +72.6%11.9K after | |
| Sep 22, 2021 (view filing) | Sep 20-21 | 2 days | MacBeath GavinChief Scientific Officer | PPurchaseVoting Common Stock | +5.00K | $6.22 | +$31.1K | +11.2%49.8K after | 2 lots |
| Sep 13, 2021 (view filing) | Sep 9 | 4 days | Silver Brian M.Chief Financial Officer | PPurchaseVoting Common Stock | +5.88K | $8.48 | +$49.9K | +588.5%6.88K after | |
| Sep 9, 2021 (view filing) | Sep 8 | 1 day | Southwell David PChief Executive Officer | PPurchaseVoting Common Stock | +11.0K | $8.73 | +$96.0K | +12.7%97.9K after | |
| Aug 31, 2021 (view filing) | Aug 27 | 4 days | Desmarais WilliamChief Business Officer | PPurchaseVoting Common Stock | +2.50K | $9.08 | +$22.7K | New position2.50K after | |
| Jul 22, 2021 (view filing)4:06 PM ET | Jul 20 | 2 days | Baker Julian and 5 othersDirector | PPurchase | +1.43M | $15.00 | +$21.4M | New position1.32M after | 2 lots |
| Jul 22, 2021 (view filing) | Jul 20 | 2 days | Westphal Christoph H10% Owner | PPurchaseVoting Common Stock | +133.3K | $15.00 | +$2.00M | +11.6%1.28M after | |
| Jul 22, 2021 (view filing) | Jul 20 | 2 days | Silver Brian M.Chief Financial Officer | PPurchaseVoting Common Stock | +1.00K | $15.00 | +$15.0K | New position1.00K after |