IMNM's three largest insider shareholders as of March 23, 2026 are Isaac Barchas (Director, 2.03Mn shares), Michael Rapp (Director, 1.07Mn shares), Clay B Siegall (President And Ceo, 665.25K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Michael Rapp | 1,071,172 | 0 | 03 Oct, 2023 | |
| Clay B Siegall | President And Ceo | 665,254 | 0 | 30 Dec, 2025 |
| Philip Wagenheim | 341,147 | 0 | 23 Mar, 2026 | |
| Michael Rapp | 0 | 208,742 | 14 Sep, 2021 | |
| John L Lamattina | 66,953 | 0 | 17 Jan, 2023 | |
| Franklyn G Prendergast | 60,840 | 0 | 02 Oct, 2023 | |
| Max Rosett | Chief Financial Officer | 47,476 | 0 | 19 Sep, 2024 |
| Philip Tsai | Chief Technical Officer | 43,300 | 0 | 22 Dec, 2025 |
| Bruce Turner | Chief Strategy Officer | 42,300 | 0 | 02 Oct, 2023 |
| Michael Lefenfeld | 40,747 | 0 | 17 Jan, 2023 | |
| Jean Jacques Bienaime | 38,415 | 0 | 12 Mar, 2026 | |
| Robert Lechleider | Chief Medical Officer | 15,805 | 0 | 21 Nov, 2024 |
| Purnanand D Sarma | President And Ceo | 10,500 | 0 | 26 May, 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 |
|---|---|---|---|---|---|---|---|---|
| 20 Mar, 2026 | Philip Wagenheim | Common Stock | D | 36,800 | $20.47 | 369,347 | D | S |
| 23 Mar, 2026 | Philip Wagenheim | Common Stock | D | 28,200 | $20.65 | 341,147 | D | S |
| 10 Mar, 2026 | Jean Jacques Bienaime | Common Stock | A | 1,000 | $22.12 | 37,415 | D | P |
| 11 Mar, 2026 | Jean Jacques Bienaime | Common Stock | A | 1,000 | $21.55 | 38,415 | D | P |
| 30 Dec, 2025 | Clay B Siegall | Common Stock | A | 4,729 | $21.15 | 665,254 | D | P |
| 19 Dec, 2025 | Clay B Siegall | Common Stock | A | 7,278 | $20.48 | 860,525 | D | P |
| 19 Dec, 2025 | Philip Tsai | Common Stock | A | 10,000 | $20.49 | 43,300 | D | P |
| 19 Dec, 2025 | Clay B Siegall | Common Stock | D | 200,000 | $0.00 | 660,525 | D | G |
| 18 Dec, 2025 | Clay B Siegall | Common Stock | A | 46,511 | $21.50 | 853,247 | D | P |
| 29 Jul, 2025 | Philip Tsai | Employee Stock Option (right to buy) | A | 190,000 | $0.00 | 190,000 | D | A |
| 29 Jul, 2025 | Clay B Siegall | Employee Stock Option (right to buy) | A | 800,000 | $0.00 | 800,000 | D | A |
| 29 Jul, 2025 | Sandra G. Stoneman | Employee Stock Option (right to buy) | A | 190,000 | $0.00 | 190,000 | D | A |
| 29 Jul, 2025 | Robert Lechleider | Employee Stock Option (right to buy) | A | 242,000 | $0.00 | 242,000 | D | A |
| 29 Jul, 2025 | Max Rosett | Employee Stock Option (right to buy) | A | 207,000 | $0.00 | 207,000 | D | A |
| 10 Jun, 2025 | Sandra M Swain | Director Stock Option (right to buy) | A | 18,864 | $0.00 | 18,864 | D | A |
| 10 Jun, 2025 | Philip Wagenheim | Director Stock Option (right to buy) | A | 18,864 | $0.00 | 18,864 | D | A |
| 10 Jun, 2025 | Carol Schafer | Director Stock Option (right to buy) | A | 18,864 | $0.00 | 18,864 | D | A |
| 10 Jun, 2025 | Jean Jacques Bienaime | Director Stock Option (right to buy) | A | 18,864 | $0.00 | 18,864 | D | A |
| 03 Jun, 2025 | Jean Jacques Bienaime | Common Stock | A | 5,000 | $9.38 | 36,415 | D | P |
| 25 Mar, 2025 | Jean Jacques Bienaime | Common Stock | A | 7,800 | $7.78 | 31,415 | D | P |