According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Alaunos Therapeutics are Director Robert W Postma (47.21K shares), Director Jaime Vieser (33.17K shares), Vice President Of Finance Ferdinand Groenewald (10.78K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Robert W Postma | 47,206 | 15 Jan, 2026 | |
| Jaime Vieser | 33,171 | 15 Jan, 2026 | |
| Kevin S. Sr. Boyle | Chief Executive Officer | 532 | 05 Sep, 2023 |
| Raffaele Baffa | Chief Medical Officer | 187 | 19 May, 2021 |
| Groot Eleanor De | Evp And Operations | 158 | 27 Dec, 2021 |
| James Huang | 126 | 24 Jun, 2022 | |
| Holger Weis | 107 | 24 Jun, 2022 | |
| Heidi Hagen | 97 | 03 Sep, 2021 | |
| Mary Thistle | 30 | 24 Jun, 2022 | |
| Christopher Bowden | 29 | 24 Jun, 2022 | |
| Ferdinand Groenewald | Vice President Of Finance | 10,775 | 20 Aug, 2025 |
| Michael Allen Jerman | 4,183 | 26 Nov, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Jan, 2026 | Robert W Postma | Common Stock | A | 5,622 | $2.89 | 43,872 | D | A |
| 12 Jan, 2026 | Jaime Vieser | Common Stock | A | 5,839 | $2.89 | 32,338 | D | A |
| 21 Nov, 2025 | Robert W Postma | Common Stock | A | 5,142 | $3.16 | 38,250 | D | A |
| 21 Nov, 2025 | Jaime Vieser | Common Stock | A | 5,340 | $3.16 | 26,499 | D | A |
| 21 Nov, 2025 | Michael Allen Jerman | Common Stock | A | 4,183 | $3.16 | 4,183 | D | A |
| 21 Nov, 2025 | Michael Allen Jerman | - | - | 4,183 | D | |||
| 18 Aug, 2025 | Ferdinand Groenewald | - | - | 10,775 | D | |||
| 18 Aug, 2025 | Ferdinand Groenewald | Common Stock | A | 10,775 | $0.00 | 10,775 | D | A |
| 03 Jul, 2025 | Robert W Postma | Common Stock | A | 4,050 | $0.00 | 33,133 | D | A |
| 03 Jul, 2025 | Jaime Vieser | Common Stock | A | 3,400 | $0.00 | 21,159 | D | A |
| 13 Apr, 2025 | Robert W Postma | Common Stock | A | 20,804 | $2.92 | 29,083 | D | A |
| 13 Apr, 2025 | Robert W Postma | Common Stock | A | 20,804 | $2.92 | 29,083 | D | A |
| 13 Apr, 2025 | Jaime Vieser | Common Stock | A | 17,465 | $0.00 | 43,359 | D | A |
| 31 Dec, 2024 | Jaime Vieser | Common Stock | D | 2,182 | $2.01 | 26,712 | D | S |
| 31 Dec, 2024 | Jaime Vieser | Common Stock | D | 818 | $2.00 | 25,894 | D | S |
| 01 Sep, 2023 | Kevin S. Sr. Boyle | - | - | 532 | D | |||
| 01 Sep, 2023 | Kevin S. Sr. Boyle | Common Stock | D | 68,014 | $0.14 | 532 | D | S |
| 29 Nov, 2022 | Robert W Postma | Common Stock | A | 750,000 | $0.65 | 3,334 | I | P |
| 29 Nov, 2022 | Jaime Vieser | Common Stock | A | 1,250,000 | $0.65 | 833 | I | P |
| 29 Nov, 2022 | Jaime Vieser | - | - | 833 | I |