As of April 17, 2026, Agenus's top three insider holders are Garo H Armen (Director, 625.97K shares), Garo H Armen (Director, 625.97K shares), Garo H Armen (Chairman And Ceo, 339.15K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Garo H Armen | - | 0 | 625,969 | 15 Feb, 2024 |
| Garo H Armen | - | 0 | 625,969 | 15 Feb, 2024 |
| Garo H Armen | Chairman And Ceo | 339,147 | 0 | 06 Apr, 2026 |
| Garo H Armen | Chairman And Ceo | 339,147 | 0 | 06 Apr, 2026 |
| Ulf Wiinberg | - | 124,063 | 0 | 17 Nov, 2023 |
| Ulf Wiinberg | - | 124,063 | 0 | 17 Nov, 2023 |
| Susan B Hirsch | - | 108,725 | 0 | 04 Jan, 2023 |
| Steven J O'Day | Chief Medical Officer | 57,116 | 0 | 30 Jun, 2025 |
| Steven J O'Day | Chief Medical Officer | 57,116 | 0 | 30 Jun, 2025 |
| Steven J O'Day | Chief Medical Officer | 57,116 | 0 | 30 Jun, 2025 |
| Thomas L Harrison | - | 38,998 | 0 | 13 Apr, 2026 |
| Christine M Klaskin | Pfo Pao | 23,478 | 0 | 30 Jun, 2025 |
| Christine M Klaskin | Pfo Pao | 23,478 | 0 | 30 Jun, 2025 |
| Christine M Klaskin | Pfo Pao | 23,478 | 0 | 30 Jun, 2025 |
| Jennifer Buell | Coo And President | 19,738 | 0 | 06 May, 2025 |
| Jennifer Buell | Coo And President | 19,738 | 0 | 06 May, 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Thomas L Harrison | Common Stock | A | 9,228 | $3.32 | 38,998 | D | A |
| 03 Apr, 2026 | Garo H Armen | Common Stock | A | 4,629 | $3.33 | 339,147 | D | A |
| 01 Apr, 2026 | Timothy Wright | Deferred Stock Units | A | 2,448 | - | 26,361 | D | A |
| 02 Jan, 2026 | Timothy Wright | Deferred Stock Units | A | 2,041 | - | 23,913 | D | A |
| 01 Oct, 2025 | Timothy Wright | Deferred Stock Units | A | 1,705 | - | 21,872 | D | A |
| 01 Jul, 2025 | Timothy Wright | Deferred Stock Units | A | 2,708 | - | 20,168 | D | A |
| 18 Jun, 2025 | Christine M Klaskin | Common Stock | A | 15,782 | $4.47 | 23,478 | D | A |
| 18 Jun, 2025 | Steven J O'Day | Common Stock | A | 43,497 | $4.47 | 57,116 | D | A |
| 17 Jun, 2025 | Brian Corvese | Stock Option | A | 750 | $0.00 | 750 | D | A |
| 17 Jun, 2025 | Timothy Wright | Stock Option | A | 750 | $0.00 | 750 | D | A |
| 17 Jun, 2025 | Timothy Wright | Stock Option | A | 15,000 | $0.00 | 15,000 | D | A |
| 17 Jun, 2025 | Brian Corvese | Stock Option | A | 30,000 | $0.00 | 30,000 | D | A |
| 01 Apr, 2025 | Timothy Wright | Deferred Stock Units | A | 3,256 | - | 17,460 | D | A |
| 02 Jan, 2025 | Timothy Wright | Deferred Stock Units | A | 2,533 | - | 14,204 | D | A |
| 14 Nov, 2024 | Christine M Klaskin | Stock Option | A | 10,000 | $0.00 | 10,000 | D | A |
| 14 Nov, 2024 | Steven J O'Day | Stock Option | A | 50,000 | $0.00 | 50,000 | D | A |
| 01 Oct, 2024 | Timothy Wright | Deferred Stock Units | A | 1,252 | - | 11,671 | D | A |
| 01 Jul, 2024 | Timothy Wright | Deferred Stock Units | A | 776 | - | 10,419 | D | A |
| 17 Jun, 2025 | Christine M Klaskin | Stock Option | A | 7,250 | $0.00 | 7,250 | D | A |
| 11 Jun, 2024 | Steven J O'Day | Stock Option | A | 37,907 | $0.00 | 37,907 | D | A |