Institutional Ownership
Xenon Pharmaceuticals Inc
CUSIP 98420N105COMXENEQ1 2026
Institutional Holders
282
13F filers
Shares Held
99.27M
Aggregate institutional
Institutional Value
$5.57B
Q1 2026
Net New Holders
+41
73 new · 32 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions73
Increased123
Decreased60
Sold out32
Institutional Holders
282 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Fmr LLC | 10.82M | $629.10M | +1.90M | Added |
| 2 | Avoro Capital Advisors LLC | 5.78M | $335.98M | +353.3K | Added |
| 3 | Blackrock, Inc. | 5.64M | $327.97M | +539.8K | Added |
| 4 | Wellington Management Group LLP | 4.83M | $280.84M | +64.9K | Added |
| 5 | Driehaus Capital Management LLC | 4.49M | $261.19M | −47.0K | Reduced |
| 6 | Polar Capital Holdings PLC | 4.41M | $256.17M | +1.94M | Added |
| 7 | Janus Henderson Group PLC | 4.18M | $242.86M | +91.9K | Added |
| 8 | Capital International Investors | 2.67M | $155.54M | −740.2K | Reduced |
| 9 | Citadel Advisors LLC | 2.65M | $154.27M | +1.33M | Added |
| 10 | Jpmorgan Chase & Co | 1.92M | $106.86M | +429.6K | Added |
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