Through the 90-day period concluding January 10, 2026, Xenon Pharmaceuticals's top three insider stakeholders include Director Frank A Holler (143.65K shares), Director Michael R Hayden (116.21K shares), Director Michael M Tarnow (77.94K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Frank A Holler | 143,653 | 01 Jun, 2021 | |
| Michael R Hayden | 116,206 | 20 May, 2021 | |
| Michael M Tarnow | 77,942 | 20 May, 2021 | |
| Mohammad Azab | 74,225 | 20 Dec, 2023 | |
| Gary Patou | 28,475 | 22 Nov, 2024 | |
| Dawn Svoronos | 25,000 | 24 Aug, 2023 | |
| James R. Empfield | Evp And Drug Discovery | 10,000 | 16 Aug, 2022 |
| Sherrington Robin | Evp And Strategy & Innovation | 8,398 | 08 Mar, 2024 |
| Steven Gannon | 7,141 | 06 Jun, 2025 | |
| Ian Mortimer | President & Ceo | 6,000 | 02 Jan, 2026 |
| Simon N. Pimstone | 6,000 | 01 Jun, 2023 | |
| Seggern Christopher Von | Chief Commercial Officer | 4,000 | 07 Dec, 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 |
|---|---|---|---|---|---|---|---|---|
| 02 Jan, 2026 | Ian Mortimer | Common Shares | A | 40,000 | $7.49 | 46,000 | D | M |
| 02 Jan, 2026 | Ian Mortimer | Common Shares | D | 2,062 | $44.93 | 6,000 | D | S |
| 02 Jan, 2026 | Ian Mortimer | Common Shares | D | 37,938 | $44.40 | 8,062 | D | S |
| 08 Dec, 2025 | Ian Mortimer | Common Shares | D | 2,010 | $46.32 | 6,000 | D | S |
| 08 Dec, 2025 | Ian Mortimer | Common Shares | D | 8,820 | $45.59 | 8,010 | D | S |
| 05 Dec, 2025 | Ian Mortimer | Common Shares | D | 14,375 | $45.03 | 16,830 | D | S |
| 28 Nov, 2025 | Ian Mortimer | Common Shares | D | 97 | $45.01 | 31,205 | D | S |
| 01 Oct, 2025 | Ian Mortimer | Common Shares | A | 25,000 | $7.69 | 56,302 | D | M |
| 01 Oct, 2025 | Ian Mortimer | Common Shares | D | 25,000 | $40.16 | 31,302 | D | S |
| 05 Jun, 2025 | Steven Gannon | Common Shares | D | 3 | $30.48 | 7,141 | D | S |
| 14 May, 2025 | Steven Gannon | - | - | 7,144 | D | |||
| 14 May, 2025 | Steven Gannon | Common Shares | A | 5,144 | $12.57 | 7,144 | D | M |
| 27 Jan, 2025 | Ian Mortimer | - | - | 46,468 | D | |||
| 27 Jan, 2025 | Ian Mortimer | Common Shares | D | 1,149 | $41.07 | 31,302 | D | S |
| 27 Jan, 2025 | Ian Mortimer | Common Shares | A | 15,166 | $17.76 | 46,468 | D | M |
| 27 Jan, 2025 | Ian Mortimer | Common Shares | A | 1,149 | $17.76 | 32,451 | D | M |
| 27 Jan, 2025 | Ian Mortimer | - | - | 32,451 | D | |||
| 27 Jan, 2025 | Ian Mortimer | Common Shares | D | 15,166 | $40.46 | 31,302 | D | S |
| 27 Jan, 2025 | Ian Mortimer | - | - | 31,302 | D | |||
| 27 Jan, 2025 | Ian Mortimer | - | - | 31,302 | D |