Xenon Pharmaceuticals
Develops azetukalner and ion-channel medicines for epilepsy, depression, and pain.
$59.99
After-hours close0.00 (0.00%)
At close$59.99(−3.13%)
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Breakdown13F · Form 4
Institutions 110.58%Insiders 0.10%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 96.67M · Float 90.76M · 93.9% free float
Institutions13F, as of Jun 30, 2026
324 holders · 106.89M shares · 51 new positions · 181 increased · 86 reduced · 26 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 9.65M | 9.98% | −1.17M | Aug 13, 2026 |
| BlackRock, Inc. | 7.52M | 7.78% | +1.88M | Aug 7, 2026 |
| Avoro Capital Advisors LLC | 5.78M | 5.98% | 0 | Aug 14, 2026 |
| Polar Capital Holdings PLC | 4.57M | 4.73% | +165.2K | Aug 14, 2026 |
| Driehaus Capital Management LLC | 4.42M | 4.57% | −73.1K | Aug 14, 2026 |
| Jupiter Topco LLC | 4.19M | 4.33% | +4.19Mnew | Aug 14, 2026 |
| Price T Rowe Associates Inc /MD/ | 3.25M | 3.36% | +1.92M | Aug 14, 2026 |
| JPMorgan Chase & Co | 2.62M | 2.71% | +693.8K | Aug 12, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 11.50% | 8.82M | 13G | Aug 6, 2025 ↗ |
| Avoro Capital Advisors LLC | 6.26% | 5.78M | 13G | May 15, 2026 ↗ |
| Wellington Management Group LLP | 6.20% | 4.76M | 13G | Feb 10, 2026 ↗ |
| BlackRock, Inc. | 6.20% | 4.76M | 13G | Jul 17, 2025 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Dawn Svoronos | director | 26.2K | 0.03% | Jun 3, 2026 |
| Gary Patou | director | 24.9K | 0.03% | Jun 8, 2026 |
| Ian Mortimer | director, officer: PRESIDENT & CEO | 19.9K | 0.02% | Mar 13, 2026 |
| Andrea DiFabio | officer: Chief Legal Officer | 7.3K | 0.01% | Mar 13, 2026 |
| Christopher John Kenney | officer: Chief Medical Officer | 7.1K | 0.01% | Mar 13, 2026 |
| Elizabeth A. Garofalo | director | 2.6K | 0.00% | Jun 3, 2026 |
| Justin D. Gover | director | 2.6K | 0.00% | Jun 3, 2026 |
| Patrick Machado | director | 2.6K | 0.00% | Jun 3, 2026 |
| Steven Gannon | director | 1.9K | 0.00% | Aug 13, 2026 |
| Gillian Cannon | director | 1.5K | 0.00% | Jun 8, 2026 |
1 ten-percent owner holds 59.5K shares by Form 4, outside the officers-and-directors figure above · 14 people have not refiled in the last 18 months (879.0K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 11, 2026 | Steven Gannondirector | Sale | 10,000 | $64.06 | 1,870 |
| Jun 5, 2026 | Gillian Cannondirector | Sale | 1,190 | $53.14 | 1,455 |
| Jun 5, 2026 | Gary Patoudirector | Sale | 1,322 | $53.14 | 24,896 |
| Mar 13, 2026 | Ian Mortimerdirector, officer: PRESIDENT & CEO | Sale | 7,308 | $55.23 | 19,923 |
| Mar 13, 2026 | Andrea DiFabioofficer: Chief Legal Officer | Sale | 1,342 | $55.23 | 7,301 |
| Mar 13, 2026 | Christopher John Kenneyofficer: Chief Medical Officer | Sale | 1,410 | $55.23 | 7,069 |
| Mar 9, 2026 | Ian Mortimerdirector, officer: PRESIDENT & CEO | Sale · 9 lots | 270,000 | $60.33 | 6,000 |
| Mar 10, 2026 | Ian Mortimerdirector, officer: PRESIDENT & CEO | Sale | 11,269 | $60.11 | 14,731 |
| Mar 10, 2026 | Andrea DiFabioofficer: Chief Legal Officer | Sale | 2,607 | $60.11 | 4,893 |
| Mar 10, 2026 | Christopher John Kenneyofficer: Chief Medical Officer | Sale | 2,771 | $60.11 | 4,729 |
CongressHouse and Senate disclosures
Not reported.