Alaunos Therapeutics's top three insider shareholders as of September 29, 2026 are Robert W Postma (Director, 58.61K shares), Jaime Vieser (Director, 47.64K shares), Holger Weis (Ceo, 25.48K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Robert W Postma | Director | 58,609 | 0 | 58,609 | 34.8% | 27 Jul, 2026 |
| 2 | Jaime Vieser | Director | 47,642 | 0 | 47,642 | 28.3% | 27 Jul, 2026 |
| 3 | Holger Weis | Ceo | 25,483 | 0 | 25,483 | 15.1% | 11 Aug, 2026 |
| 4 | Michael Allen Jerman | Director | 23,759 | 0 | 23,759 | 14.1% | 27 Jul, 2026 |
| 5 | Ferdinand Groenewald | Vice President Of Finance | 10,775 | 0 | 10,775 | 6.4% | 20 Aug, 2025 |
| 6 | Kevin S. Sr. Boyle | Chief Executive Officer | 1,330 | 0 | 1,330 | 0.8% | 05 Sep, 2023 |
| 7 | Groot Eleanor De | Evp, Operations | 395 | 0 | 395 | 0.2% | 27 Dec, 2021 |
| 8 | James Huang | Director | 314 | 0 | 314 | 0.2% | 24 Jun, 2022 |
| 9 | Mary Thistle | Director | 75 | 0 | 75 | 0.0% | 24 Jun, 2022 |
| 10 | Christopher Bowden | Director | 74 | 0 | 74 | 0.0% | 24 Jun, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 06 Aug, 2026 | Holger Weis | Ceo | Acquired A | 4,363 | $2.01 | $8.77K | 25,483 | Direct |
| 23 Jul, 2026 | Holger Weis | Ceo | Acquired A | 4,568 | $1.92 | $8.77K | 21,120 | Direct |
| 23 Jul, 2026 | Jaime Vieser | Director | Acquired A | 8,789 | $1.92 | $16.87K | 47,642 | Direct |
| 23 Jul, 2026 | Robert W Postma | Director | Acquired A | 8,463 | $1.92 | $16.25K | 58,609 | Direct |
| 23 Jul, 2026 | Michael Allen Jerman | Director | Acquired A | 8,138 | $1.92 | $15.62K | 23,759 | Direct |
| 30 Jun, 2026 | Holger Weis | Chief Executive Officer | Acquired A | 3,880 | $2.26 | $8.77K | 16,552 | Direct |
| 12 Jun, 2026 | Holger Weis | Chief Executive Officer | Acquired A | 7,761 | $2.26 | $17.54K | 12,672 | Direct |
| 22 May, 2026 | Holger Weis | Chief Executive Officer | Acquired A | 3,700 | $2.37 | $8.77K | 4,911 | Direct |
| 29 Apr, 2026 | Robert W Postma | Director | Acquired A | 6,274 | $2.59 | $16.25K | 50,146 | Direct |
| 29 Apr, 2026 | Michael Allen Jerman | Director | Acquired A | 6,032 | $2.59 | $15.62K | 15,621 | Direct |
| 29 Apr, 2026 | Jaime Vieser | Director | Acquired A | 6,515 | $2.59 | $16.87K | 38,853 | Direct |
| 12 Jan, 2026 | Jaime Vieser | Director | Acquired A | 5,839 | $2.89 | $16.87K | 32,338 | Direct |
| 12 Jan, 2026 | Robert W Postma | Director | Acquired A | 5,622 | $2.89 | $16.25K | 43,872 | Direct |
| 21 Nov, 2025 | Jaime Vieser | Director | Acquired A | 5,340 | $3.16 | $16.87K | 26,499 | Direct |
| 21 Nov, 2025 | Robert W Postma | Director | Acquired A | 5,142 | $3.16 | $16.25K | 38,250 | Direct |
| 21 Nov, 2025 | Michael Allen Jerman | Director | Acquired A | 4,183 | $3.16 | $13.22K | 4,183 | Direct |
| 18 Aug, 2025 | Ferdinand Groenewald | Vice President Of Finance | Acquired A | 10,775 | $0.00 | $0 | 10,775 | Direct |
| 18 Aug, 2025 | Holger Weis | Chief Executive Officer | Acquired A | 13,676 | $0.00 | $0 | 13,676 | Direct |
| 18 Aug, 2025 | Ferdinand Groenewald | Vice President Of Finance | Acquired A | 4,000 | $0.00 | $0 | 4,000 | Direct |
| 15 Jul, 2025 | Michael Allen Jerman | Director | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |