Xenon Pharmaceuticals Ownership | Who Owns Xenon Pharmaceuticals?
Xenon Pharmaceuticals Ownership Summary
Xenon Pharmaceuticals is owned by 105.63% institutional investors, 0.14% insiders. Fmr is the largest institutional shareholder, holding 9.66% of XENE shares. American Funds SMALLCAP World A is the top mutual fund, with 4.99% of its assets in Xenon Pharmaceuticals shares.
XENE Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Xenon Pharmaceuticals | 105.63% | 0.14% | -5.77% |
| Sector | Healthcare Stocks | 488.30% | 11.08% | -399.38% |
| Industry | Biotech Stocks | 307.10% | 11.11% | -218.21% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Fmr | 7.53M | 9.66% | $294.99M |
| Avoro capital advisors | 5.40M | 6.86% | $169.02M |
| Blackrock funding, inc. /de | 5.37M | 6.82% | $167.93M |
| Driehaus capital management | 4.34M | 5.51% | $135.71M |
| Wellington management group llp | 3.78M | 4.85% | $148.08M |
| Braidwell lp | 3.61M | 4.58% | $112.84M |
| Capital investors | 3.18M | 4.04% | $99.58M |
| Janus henderson group | 2.87M | 3.68% | $112.43M |
| Commodore capital lp | 2.74M | 3.52% | $107.41M |
| Polar capital | 2.70M | 3.44% | $84.61M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Commodore capital lp | 2.74M | 7.87% | $107.41M |
| Saturn v capital management | 468.36K | 5.94% | $14.66M |
| First turn management | 684.99K | 4.81% | $26.85M |
| Affinity asset advisors | 1.10M | 4.70% | $34.43M |
| Great point partners | 200.00K | 4.07% | $6.26M |
| Foresite capital management iv | 160.00K | 4.05% | $5.01M |
| Braidwell lp | 3.61M | 3.86% | $112.84M |
| Vestal point capital, lp | 2.00M | 3.30% | $62.60M |
| Tls advisors | 32.96K | 3.22% | $1.03M |
| Altium capital management lp | 288.00K | 3.20% | $11.29M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock funding, inc. /de | 5.37M | 0.00% | 3.33M |
| Holocene advisors, lp | 1.81M | 0.14% | 1.81M |
| Braidwell lp | 3.61M | 3.86% | 895.15K |
| Vestal point capital, lp | 2.00M | 3.30% | 700.00K |
| American century companies | 679.86K | 0.01% | 679.86K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Paradigm biocapital advisors lp | - | - | -2.04M |
| Capital world investors | 655.74K | 0.00% | -1.57M |
| Samlyn capital | - | - | -1.02M |
| T. rowe price investment management | 76.94K | 0.00% | -720.04K |
| Adage capital partners gp | 1.29M | 0.07% | -624.65K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Holocene advisors, lp | 1.81M | 0.14% | 1.81M | $56.64M |
| American century companies | 679.86K | 0.01% | 679.86K | $21.28M |
| Deerfield management company, l.p. (series c) | 542.02K | 0.31% | 542.02K | $16.97M |
| Foresite capital management vi | 160.00K | 2.82% | 160.00K | $5.01M |
| Foresite capital management iv | 160.00K | 4.05% | 160.00K | $5.01M |
Sold Out
| Holder | Change |
|---|---|
| Dinuzzo private wealth | -2.00 |
| Srs capital advisors | -3.00 |
| Sjs investment consulting | -5.00 |
| Hexagon capital partners | -6.00 |
| Jfs wealth advisors | -8.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 211 | 0.48% | 83,114,839 | 11.81% | 105 | 1.18% | 116 | 26.09% | 57 | -18.57% |
| Mar 31, 2025 | 213 | - | 76,727,655 | 0.58% | 97 | 1.02% | 92 | -3.16% | 72 | 5.88% |
| Dec 31, 2024 | 117 | -43.75% | 35,698,172 | -52.33% | 45 | 0.50% | 51 | -43.33% | 38 | -38.71% |
| Sep 30, 2024 | 207 | -4.17% | 74,878,324 | 1.04% | 96 | 1.05% | 91 | -5.21% | 61 | -15.28% |
| Jun 30, 2024 | 216 | -3.57% | 74,109,245 | 0.93% | 95 | 1.07% | 96 | -15.79% | 72 | 5.88% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| American Funds SMALLCAP World A | 3.83M | 4.99% | -1.48M |
| Polar Capital Biotech S Inc | 2.00M | 2.60% | - |
| iShares Russell 2000 ETF | 1.83M | 2.38% | - |
| Strategic Advisers Fidelity US TtlStk | 1.77M | 2.29% | 73.48K |
| Vanguard Health Care Inv | 1.60M | 2.08% | -942.73K |
| Fidelity Select Health Care | 1.28M | 1.66% | - |
| Fidelity Small Cap Index | 762.45K | 0.99% | 762.45K |
| Fidelity Advisor Health Care I | 740.00K | 0.96% | -20.00K |
| Fidelity Advisor Biotechnology I | 710.76K | 0.92% | - |
| Pictet Biotech | 658.54K | 0.87% | 658.54K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 01, 2025 | MORTIMER IAN | PRESIDENT, CEO & INTERIM CFO | Sell | $1.00M |
| Jun 05, 2025 | GANNON STEVEN | - | Sell | $91.44 |
| Jan 27, 2025 | MORTIMER IAN | PRESIDENT & CEO | Sell | $613.62K |
| Jan 24, 2025 | MORTIMER IAN | PRESIDENT & CEO | Sell | $903.21K |
| Jan 27, 2025 | MORTIMER IAN | PRESIDENT & CEO | Sell | $47.19K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | 1 |
| 2025 Q2 | - | 1 |
| 2025 Q1 | - | 4 |
| 2024 Q4 | - | 4 |
| 2024 Q2 | - | - |
XENE Ownership FAQ
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