Xenon Pharmaceuticals Inc. (XENE) Insider Ownership

Historic Insider Ownership Trends

XENE's three largest insider shareholders as of March 23, 2026 are Frank A Holler (Director, 143.65K shares), Michael R Hayden (Director, 116.21K shares), Michael M Tarnow (Director, 77.94K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Frank A Holler 143,653 0 01 Jun, 2021
Michael R Hayden 116,206 0 20 May, 2021
Michael M Tarnow 77,942 0 20 May, 2021
Mohammad Azab 74,225 0 20 Dec, 2023
Dawn Svoronos 25,000 0 24 Aug, 2023
Gary Patou 23,573 0 22 Nov, 2024
Ian Mortimer President Ceo 19,923 0 13 Mar, 2026
Ian Mortimer President Ceo 14,731 0 11 Mar, 2026
James R. Empfield Evp, Drug Discovery 10,000 0 16 Aug, 2022
Sherrington Robin Evp, Strategy Innovation 8,398 0 08 Mar, 2024
Andrea Difabio Chief Legal Officer 7,301 0 13 Mar, 2026
Steven Gannon 7,141 0 06 Jun, 2025
Christopher John Kenney Chief Medical Officer 7,069 0 13 Mar, 2026
Simon N. Pimstone 6,000 0 01 Jun, 2023
Gary Patou 0 4,902 15 Dec, 2023
Andrea Difabio Chief Legal Officer 4,893 0 11 Mar, 2026
Christopher John Kenney Chief Medical Officer 4,729 0 11 Mar, 2026
Seggern Christopher Von Chief Commercial Officer 4,000 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
12 Mar, 2026 Christopher John Kenney Common Shares A 3,750 - 8,479 D M
12 Mar, 2026 Andrea Difabio Common Shares A 3,750 - 8,643 D M
12 Mar, 2026 Ian Mortimer Common Shares A 12,500 - 27,231 D M
13 Mar, 2026 Andrea Difabio Common Shares D 1,342 $55.23 7,301 D S
13 Mar, 2026 Ian Mortimer Common Shares D 7,308 $55.23 19,923 D S
13 Mar, 2026 Christopher John Kenney Common Shares D 1,410 $55.23 7,069 D S
12 Mar, 2026 Christopher John Kenney Restricted Share Units D 3,750 $0.00 11,250 D M
12 Mar, 2026 Andrea Difabio Restricted Share Units D 3,750 $0.00 11,250 D M
12 Mar, 2026 Ian Mortimer Restricted Share Units D 12,500 $0.00 37,500 D M
09 Mar, 2026 Ian Mortimer Common Shares A 75,000 $8.40 81,000 D M
09 Mar, 2026 Christopher John Kenney Common Shares A 7,500 - 7,500 D M
09 Mar, 2026 Andrea Difabio Common Shares A 7,500 - 7,500 D M
09 Mar, 2026 Christopher John Kenney Common Shares A 7,500 - 7,500 D M
09 Mar, 2026 Ian Mortimer Common Shares A 75,000 $8.40 81,000 D M
09 Mar, 2026 Andrea Difabio Common Shares A 7,500 - 7,500 D M
09 Mar, 2026 Ian Mortimer Common Shares D 21,791 $58.81 59,209 D S
10 Mar, 2026 Christopher John Kenney Common Shares D 2,771 $60.11 4,729 D S
09 Mar, 2026 Ian Mortimer Common Shares D 21,791 $58.81 59,209 D S
10 Mar, 2026 Andrea Difabio Common Shares D 2,607 $60.11 4,893 D S
10 Mar, 2026 Andrea Difabio Common Shares D 2,607 $60.11 4,893 D S