As of March 23, 2026, Agenus's top three insider holders are Garo H Armen (See Remarks, 625.97K shares), Garo H Armen (See Remarks, 330.54K shares), Ulf Wiinberg (Director, 124.06K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Garo H Armen | See Remarks | 0 | 625,969 | 15 Feb, 2024 |
| Garo H Armen | See Remarks | 330,535 | 0 | 09 Mar, 2026 |
| Ulf Wiinberg | 124,063 | 0 | 17 Nov, 2023 | |
| Susan B Hirsch | 108,725 | 0 | 04 Jan, 2023 | |
| Brian Corvese | 92,085 | 0 | 21 Jun, 2021 | |
| Allison M Jeynes-Ellis | 66,176 | 0 | 21 Jun, 2021 | |
| Steven J O'Day | Chief Medical Officer | 57,116 | 0 | 30 Jun, 2025 |
| Timothy Wright | 50,391 | 0 | 21 Jun, 2021 | |
| Thomas L Harrison | 29,770 | 0 | 05 Jan, 2026 | |
| Christine M Klaskin | Pfo Pao | 23,478 | 0 | 30 Jun, 2025 |
| Jennifer Buell | 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 |
|---|---|---|---|---|---|---|---|---|
| 06 Mar, 2026 | Garo H Armen | Common Stock | A | 4,994 | $2.96 | 330,535 | D | A |
| 20 Feb, 2026 | Garo H Armen | Common Stock | A | 4,829 | $3.06 | 325,541 | D | A |
| 06 Feb, 2026 | Garo H Armen | Common Stock | A | 5,027 | $2.94 | 320,712 | D | A |
| 23 Jan, 2026 | Garo H Armen | Common Stock | A | 4,562 | $3.24 | 315,685 | D | A |
| 09 Jan, 2026 | Garo H Armen | Common Stock | A | 3,780 | $3.91 | 311,123 | D | A |
| 02 Jan, 2026 | Timothy Wright | Deferred Stock Units | A | 2,041 | - | 23,913 | D | A |
| 02 Jan, 2026 | Thomas L Harrison | Common Stock | A | 7,691 | $3.98 | 29,770 | D | A |
| 26 Dec, 2025 | Garo H Armen | Common Stock | A | 4,942 | $3.31 | 307,343 | D | A |
| 12 Dec, 2025 | Garo H Armen | Common Stock | A | 4,316 | $3.79 | 302,401 | D | A |
| 28 Nov, 2025 | Garo H Armen | Common Stock | A | 3,587 | $4.56 | 298,085 | D | A |
| 14 Nov, 2025 | Garo H Armen | Common Stock | A | 3,769 | $4.34 | 294,498 | D | A |
| 31 Oct, 2025 | Garo H Armen | Common Stock | A | 4,120 | $3.97 | 290,729 | D | A |
| 17 Oct, 2025 | Garo H Armen | Common Stock | A | 4,216 | $3.88 | 286,609 | D | A |
| 03 Oct, 2025 | Garo H Armen | Common Stock | A | 3,951 | $4.14 | 282,393 | D | A |
| 01 Oct, 2025 | Thomas L Harrison | Common Stock | A | 5,780 | $5.01 | 22,079 | D | A |
| 01 Oct, 2025 | Timothy Wright | Deferred Stock Units | A | 1,705 | - | 21,872 | D | A |
| 19 Sep, 2025 | Garo H Armen | Common Stock | A | 3,734 | $4.38 | 278,442 | D | A |
| 05 Sep, 2025 | Garo H Armen | Common Stock | A | 3,778 | $4.33 | 274,708 | D | A |
| 22 Aug, 2025 | Garo H Armen | Common Stock | A | 3,619 | $4.52 | 270,930 | D | A |
| 08 Aug, 2025 | Garo H Armen | Common Stock | A | 3,407 | $4.80 | 267,311 | D | A |