As of June 18, 2026, the three largest insider holders of NKTX are Capital Management, L.P. Ra (Director, 10.05Mn shares), Capital Management, L.P. Ra (Director, 7.81Mn shares), Simeon George (Director, 2.00Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Paul J Hastings | Chief Executive Officer | 390,023 | 0 | 20 Jan, 2026 |
| Capital Management, L.P. Ra | - | 0 | 10,050,818 | 29 Mar, 2024 |
| Alicia J. Hager | Chief Legal Officer | 146,735 | 0 | 17 Jan, 2025 |
| Simeon George | - | 0 | 2,000,000 | 28 Mar, 2024 |
| James Trager | Chief Scientific Officer | 150,959 | 0 | 20 Jun, 2024 |
| Nadir Mahmood | President | 167,727 | 0 | 20 Jan, 2026 |
| Kanya Rajangam | Chief Medical Officer | 12,800 | 0 | 19 Jan, 2022 |
| Ralph Brandenberger | Chief Technical Officer | 124,796 | 0 | 17 Jan, 2025 |
| David Shook | Chief Medical Officer | 190,955 | 0 | 17 Jan, 2025 |
| Alyssa Levin | - | 102,662 | 0 | 17 Jan, 2025 |
| Shawn Marshall Rose | - | 70,000 | 0 | 08 Jan, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Jan, 2026 | Paul J Hastings | Common Stock | D | 26,046 | $2.07 | 390,023 | D | S |
| 15 Jan, 2026 | Nadir Mahmood | Common Stock | D | 5,649 | $2.07 | 167,727 | D | S |
| 06 Jan, 2026 | Shawn Marshall Rose | Common Stock | A | 70,000 | $0.00 | 70,000 | D | A |
| 06 Jan, 2026 | Nadir Mahmood | Common Stock | A | 80,000 | $0.00 | 173,376 | D | A |
| 06 Jan, 2026 | Paul J Hastings | Common Stock | A | 94,000 | $0.00 | 416,069 | D | A |
| 06 Jan, 2026 | Shawn Marshall Rose | Common Stock | A | 70,000 | $0.00 | 70,000 | D | A |
| 06 Jan, 2026 | Shawn Marshall Rose | Stock Option (right to buy) | A | 139,000 | $0.00 | 139,000 | D | A |
| 06 Jan, 2026 | Shawn Marshall Rose | Stock Option (right to buy) | A | 139,000 | $0.00 | 139,000 | D | A |
| 06 Jan, 2026 | Paul J Hastings | Stock Option (right to buy) | A | 562,000 | $0.00 | 562,000 | D | A |
| 06 Jan, 2026 | Nadir Mahmood | Stock Option (right to buy) | A | 160,000 | $0.00 | 160,000 | D | A |
| 23 Jun, 2025 | Shawn Marshall Rose | Stock Option (right to buy) | A | 500,000 | $0.00 | 500,000 | D | A |
| 23 Jun, 2025 | Shawn Marshall Rose | Stock Option (right to buy) | A | 500,000 | $0.00 | 500,000 | D | A |
| 18 Jun, 2025 | Paul J Hastings | Common Stock | D | 1,790 | $1.79 | 320,069 | D | S |
| 05 Jun, 2025 | Ali Behbahani | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | D | A |
| 05 Jun, 2025 | Angela Thedinga | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | D | A |
| 05 Jun, 2025 | Michael Dybbs | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | D | A |
| 05 Jun, 2025 | Capital Management, L.P. Ra | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | I | A |
| 05 Jun, 2025 | George Vratsanos | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | D | A |
| 05 Jun, 2025 | Simeon George | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | D | A |
| 05 Jun, 2025 | Zachary Scheiner | Stock Option (right to buy) | A | 46,000 | $0.00 | 46,000 | D | A |