As of March 23, 2026, the three largest insider holders of INMB are Inc Xencor (TenPercentOwner, 1.89Mn shares), Raymond Joseph Tesi (President And Ceo, 1.55Mn shares), Mark William Lowdell (Chief Scientific Officer, 1.51Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Inc Xencor | 1,885,533 | 0 | 08 Sep, 2021 | |
| Raymond Joseph Tesi | President And Ceo | 1,554,106 | 0 | 16 Sep, 2024 |
| Mark William Lowdell | Chief Scientific Officer | 1,510,806 | 0 | 24 Apr, 2024 |
| David J Moss | Chief Financial Officer | 1,285,869 | 0 | 30 Sep, 2024 |
| Timothy J Schroeder | 0 | 82,187 | 14 Jul, 2023 | |
| Scott Juda | 0 | 71,603 | 26 Jun, 2024 | |
| Scott Juda | 66,603 | 0 | 24 Apr, 2024 | |
| James Kelly Ganjei | 17,793 | 0 | 23 Mar, 2022 |
* 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 Dec, 2025 | David J Moss | Option (right to buy) | A | 750,000 | $0.00 | 750,000 | D | A |
| 01 Dec, 2025 | Mark William Lowdell | Option (right to buy) | A | 600,000 | $0.00 | 600,000 | D | A |
| 01 Dec, 2025 | Cory Randall Ellspermann | Option (right to buy) | A | 300,000 | $0.00 | 300,000 | D | A |
| 01 Dec, 2025 | James Kelly Ganjei | Option (right to buy) | A | 150,000 | $0.00 | 150,000 | D | A |
| 01 Dec, 2025 | Scott Juda | Option (right to buy) | A | 150,000 | $0.00 | 150,000 | D | A |
| 01 Dec, 2025 | Timothy J Schroeder | Option (right to buy) | A | 150,000 | $0.00 | 150,000 | D | A |
| 18 Nov, 2025 | Timothy J Schroeder | Stock Option (right to buy) | D | 108,000 | - | 0 | D | D |
| 18 Nov, 2025 | James Kelly Ganjei | Stock Option (right to buy) | D | 108,000 | - | 0 | D | D |
| 18 Nov, 2025 | David J Moss | Stock Option (right to buy) | D | 400,000 | - | 0 | D | D |
| 18 Nov, 2025 | Cory Randall Ellspermann | Stock Option (right to buy) | D | 75,000 | - | 0 | D | D |
| 18 Nov, 2025 | Mark William Lowdell | Stock Option (right to buy) | D | 400,000 | - | 0 | D | D |
| 18 Nov, 2025 | Scott Juda | Stock Option (right to buy) | D | 108,000 | - | 0 | D | D |
| 18 Nov, 2025 | Mark William Lowdell | Stock Option (right to buy) | A | 400,000 | - | 400,000 | D | A |
| 18 Nov, 2025 | Timothy J Schroeder | Stock Option (right to buy) | A | 108,000 | - | 108,000 | D | A |
| 18 Nov, 2025 | James Kelly Ganjei | Stock Option (right to buy) | A | 108,000 | - | 108,000 | D | A |
| 18 Nov, 2025 | Cory Randall Ellspermann | Stock Option (right to buy) | A | 75,000 | - | 75,000 | D | A |
| 18 Nov, 2025 | Scott Juda | Stock Option (right to buy) | A | 108,000 | - | 108,000 | D | A |
| 18 Nov, 2025 | David J Moss | Stock Option (right to buy) | A | 400,000 | - | 400,000 | D | A |
| 18 Nov, 2025 | Mark William Lowdell | Stock Option (right to buy) | D | 180,000 | - | 0 | D | D |
| 18 Nov, 2025 | David J Moss | Stock Option (right to buy) | D | 59,337 | - | 0 | D | D |