Who owns Xenon Pharmaceuticals Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of XENE from SEC Form 13F filings across 316 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 316 institutions disclosed 101.1M shares of Xenon Pharmaceuticals Inc. worth $6.10B — about 101.5% of shares outstanding; the largest disclosed holder is FMR LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
316
13F holders
$6.10B
value, 2026 filers
101.5%
of shares outstanding (101.1M sh)
51
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of XENE's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 9.6M | $582.4M | 0.0% | 9.7% | -10.8% |
| 2 | BlackRock, Inc. | 7.5M | $454.1M | 0.0% | 7.6% | +33.4% |
| 3 | Avoro Capital Advisors LLC | 5.8M | $348.7M | 3.1% | 5.8% | 0.0% |
| 4 | Polar Capital Holdings Plc | 4.6M | $275.9M | 0.7% | 4.6% | +3.8% |
| 5 | Driehaus Capital Management LLC | 4.4M | $266.7M | 1.5% | 4.4% | -1.6% |
| 6 | Jupiter Topco LLCNEW | 4.2M | $252.7M | 0.1% | 4.2% | new |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | 3.2M | $196.1M | 0.0% | 3.3% | +144.3% |
| 8 | JPMORGAN CHASE & CO | 2.6M | $157.4M | 0.0% | 2.6% | +36.1% |
| 9 | Capital International Investors | 2.4M | $142.5M | 0.0% | 2.4% | -11.7% |
| 10 | T. Rowe Price Investment Management, Inc. | 2.2M | $130.9M | 0.1% | 2.2% | +127.8% |
| 11 | STATE STREET CORP | 2.0M | $118.9M | 0.0% | 2% | +14.5% |
| 12 | TWO SIGMA INVESTMENTS, LP | 1.6M | $99.2M | 0.1% | 1.6% | +171.1% |
| 13 | DEERFIELD MANAGEMENT COMPANY, L.P. | 1.6M | $97.5M | 1.0% | 1.6% | 0.0% |
| 14 | Affinity Asset Advisors, LLC | 1.6M | $96.3M | 4.4% | 1.6% | -4.8% |
| 15 | ALLIANCEBERNSTEIN L.P. | 1.6M | $90.8M | 0.0% | 1.6% | +11.3% |
| 16 | WESTFIELD CAPITAL MANAGEMENT CO LP | 1.5M | $91.0M | 0.3% | 1.5% | +7.5% |
| 17 | FRANKLIN RESOURCES INC | 1.4M | $86.8M | 0.0% | 1.4% | +12.3% |
| 18 | WELLINGTON MANAGEMENT GROUP LLP | 1.4M | $86.0M | 0.0% | 1.4% | -70.5% |
| 19 | CITADEL ADVISORS LLC | 1.4M | $84.6M | 0.0% | 1.4% | -47.2% |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 1.4M | $82.7M | 0.0% | 1.4% | +25.4% |
| 21 | Siren, L.L.C. | 1.3M | $79.6M | 1.6% | 1.3% | 0.0% |
| 22 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.3M | $77.9M | 0.1% | 1.3% | -3.8% |
| 23 | Pictet Asset Management Holding SA | 1.2M | $71.6M | 0.1% | 1.2% | +74.7% |
| 24 | BRAIDWELL LP | 1.1M | $68.3M | 2.5% | 1.1% | -15.5% |
| 25 | Nuveen, LLC | 993,126 | $59.9M | 0.0% | 1% | +297.2% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.