Data spanning the past 90 days through February 19, 2026 reveals that TScan Therapeutics's three principal insider shareholders consist of TenPercentOwner Capital Management Lp Lynx1 (8.02Mn shares), Director Bros. Advisors Lp Baker (2.53Mn shares), TenPercentOwner Christoph H Westphal (1.04Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Capital Management Lp Lynx1 | 8,019,148 | 23 Dec, 2025 | |
| Bros. Advisors Lp Baker | 2,528,583 | 12 May, 2022 | |
| Christoph H Westphal | 1,036,585 | 22 Jul, 2021 | |
| David P Southwell | Chief Executive Officer | 171,569 | 20 May, 2022 |
| Timothy J Barberich | 67,027 | 21 Dec, 2023 | |
| Gavin Macbeath | Chief Scientific Officer | 49,767 | 22 Sep, 2021 |
| Barbara Klencke | 45,000 | 24 Sep, 2024 | |
| Brian M. Silver | Chief Financial Officer | 32,885 | 29 Dec, 2022 |
| Zoran Zdraveski | Nan | 4,716 | 27 Aug, 2024 |
| William Desmarais | Chief Business Officer | 2,500 | 31 Aug, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 23 Dec, 2025 | Capital Management Lp Lynx1 | Common Stock | A | 6,232 | $0.90 | 8,019,148 | I | P |
| 22 Dec, 2025 | Capital Management Lp Lynx1 | Common Stock | A | 75,500 | $0.90 | 8,012,916 | I | P |
| 19 Dec, 2025 | Capital Management Lp Lynx1 | Common stock, $0.0001 par value per share ("Common Stock") | A | 80,069 | $0.90 | 7,937,416 | I | P |
| 20 May, 2025 | Capital Management Lp Lynx1 | Common Stock | A | 1,200,000 | $1.20 | 7,946,141 | I | P |
| 19 May, 2025 | Capital Management Lp Lynx1 | Common stock, $0.0001 par value per share ("Common Stock") | A | 1,388,794 | $1.20 | 6,746,141 | I | P |
| 13 Dec, 2024 | Capital Management Lp Lynx1 | Common Stock | A | 100,000 | $2.90 | 5,357,347 | I | P |
| 12 Dec, 2024 | Capital Management Lp Lynx1 | Common stock, $0.0001 par value per share ("Common Stock") | A | 31,800 | $3.01 | 5,257,347 | I | P |
| 15 Nov, 2024 | Capital Management Lp Lynx1 | Common stock, $0.0001 par value per share | A | 947 | $4.34 | 5,225,547 | I | P |
| 23 Sep, 2024 | Barbara Klencke | Voting Common Stock | A | 5,000 | $5.29 | 45,000 | D | P |
| 26 Aug, 2024 | Barbara Klencke | - | - | 40,000 | D | |||
| 26 Aug, 2024 | Barbara Klencke | Voting Common Stock | A | 5,000 | $5.53 | 40,000 | D | P |
| 23 Aug, 2024 | Barbara Klencke | - | - | 35,000 | D | |||
| 23 Aug, 2024 | Barbara Klencke | Voting Common Stock | A | 5,000 | $5.69 | 35,000 | D | P |
| 23 Aug, 2024 | Zoran Zdraveski | - | - | 105,236 | D | |||
| 23 Aug, 2024 | Zoran Zdraveski | Voting Common Stock | A | 13,125 | $1.81 | 105,236 | D | M |
| 23 Aug, 2024 | Zoran Zdraveski | Voting Common Stock | A | 25,000 | $3.27 | 92,111 | D | M |
| 23 Aug, 2024 | Zoran Zdraveski | Voting Common Stock | A | 54,895 | $4.85 | 67,111 | D | M |
| 23 Aug, 2024 | Zoran Zdraveski | Voting Common Stock | A | 64,166 | $2.49 | 169,402 | D | M |
| 23 Aug, 2024 | Zoran Zdraveski | - | - | 92,111 | D | |||
| 23 Aug, 2024 | Zoran Zdraveski | - | - | 4,716 | D |