Xenon Pharmaceuticals Inc.
XENE- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001582313
In the last 90 days, Xenon Pharmaceuticals Inc. insiders filed 2 open-market purchases and 2 sales; 315 institutions reported holding it in 13F filings for Q2 2026, worth $6.10B in total; Duquesne Family Office is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Xenon Pharmaceuticals Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 290
- +49 vs. Q4 2025
- Shares held
- 100.2M
- +16.7M (+20.0%) vs. Q4 2025
- Total value
- $5.80B
- +$2.06B (+55.0%) vs. Q4 2025
- New holders
- 82
- 123 more added
- Sold out
- 33
- 60 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting XENE on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 315 | $6.10B |
| Q1 2026 | 290 | $5.80B |
| Q4 2025 | 245 | $3.78B |
| Q3 2025 | 219 | $3.39B |
| Q2 2025 | 206 | $2.60B |
| Q1 2025 | 206 | $2.58B |
| Q4 2024 | 209 | $2.99B |
| Q3 2024 | 203 | $2.95B |
| Q2 2024 | 213 | $2.89B |
| Q1 2024 | 220 | $3.16B |
| Q4 2023 | 204 | $3.32B |
| Q3 2023 | 181 | $2.10B |
| Q2 2023 | 175 | $2.36B |
| Q1 2023 | 163 | $2.19B |
| Q4 2022 | 159 | $2.38B |
| Q3 2022 | 154 | $2.09B |
| Q2 2022 | 151 | $1.73B |
| Q1 2022 | 132 | $1.50B |
| Q4 2021 | 130 | $1.49B |
| Q3 2021 | 118 | $521.7M |
| Q2 2021 | 103 | $620.0M |
| Q1 2021 | 91 | $590.0M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Xenon Pharmaceuticals Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −33,459−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −23,317−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −19,587−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −17,025−100.0% | Sold out |
| Himension Fund | 0 | $0 | 0.00% | −11,279−100.0% | Sold out |
| Supplemental Annuity Collective Trust of NJ | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| Knott David M Jr | 0 | $0 | 0.00% | −10,962−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −10,557−100.0% | Sold out |
| Harbor Capital Advisors, Inc. | 0 | $0 | 0.00% | −10,053−100.0% | Sold out |
| Altfest L J & Co Inc | 0 | $0 | 0.00% | −8,232−100.0% | Sold out |
| Abel Hall, LLC | 0 | $0 | 0.00% | −6,757−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −5,153−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −4,772−100.0% | Sold out |
| Whalen Wealth Management Inc. | 0 | $0 | 0.00% | −4,641−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −2,387−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −1,215−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −740−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −229−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| TD Private Client Wealth LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Iron Triangle Partners LP | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| Motiv8 Investments LLC | – | – | – | – | Not filed |