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Xenon Pharmaceuticals Ownership | Who Owns Xenon Pharmaceuticals?

OverviewForecastRevenueFinancialsChartTranscripts

Xenon Pharmaceuticals Ownership Summary

Xenon Pharmaceuticals is owned by 63.99% institutional investors, 0.14% insiders, and 35.87% retail investors. Fmr is the largest institutional shareholder, holding 11.30% 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

TypeName% Inst% Insiders% Retail
StockXenon Pharmaceuticals63.99%0.14%35.87%
SectorHealthcare Stocks 42.54%10.83%46.63%
IndustryBiotech Stocks 45.22%10.75%44.04%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Fmr8.92M11.30%$358.09M
Avoro capital advisors5.40M6.84%$216.81M
Blackrock funding, inc. /de4.77M6.04%$191.55M
Driehaus capital management4.17M5.28%$167.39M
Wellington management group llp3.61M4.57%$144.94M
Braidwell lp3.61M4.57%$144.74M
Capital investors3.18M4.03%$127.74M
Janus henderson group2.87M3.68%$112.43M
Commodore capital lp2.70M3.42%$108.41M
Polar capital2.55M3.23%$102.25M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Commodore capital lp2.70M5.29%$108.41M
Affinity asset advisors1.40M4.90%$56.21M
First turn management799.74K4.82%$32.11M
Saturn v capital management503.70K4.44%$20.22M
Braidwell lp3.61M4.29%$144.74M
Tls advisors32.96K4.02%$1.38M
Foresite capital management iv160.00K3.52%$6.42M
Tri locum partners lp366.10K3.38%$14.70M
Great point partners200.00K3.31%$8.03M
Bioimpact capital503.40K3.31%$20.21M

Top Buyers

HolderShares% AssetsChange
Wellington management group llp3.61M0.03%1.44M
T. rowe price investment management599.11K0.01%522.17K
Caligan partners lp444.56K2.34%444.56K
Jennison associates1.14M0.03%438.85K
Tri locum partners lp366.10K3.38%366.10K

Top Sellers

HolderShares% AssetsChange
Paradigm biocapital advisors lp---2.04M
Samlyn capital---1.02M
Vestal point capital, lp1.10M1.99%-900.00K
Blackrock funding, inc. /de4.77M0.00%-594.38K
Orbimed advisors419.60K0.40%-528.28K

New Positions

HolderShares% AssetsChangeValue
Caligan partners lp444.56K2.34%444.56K$17.85M
Tri locum partners lp366.10K3.38%366.10K$14.70M
Jain global252.38K0.05%252.38K$10.13M
Axa investment managers176.16K0.02%176.16K$7.07M
Tudor investment corp et al76.82K0.01%76.82K$3.08M

Sold Out

HolderChange
Twin peaks wealth advisors-1.00
Dinuzzo private wealth-2.00
Sjs investment consulting-5.00
Hexagon capital partners-6.00
Jfs wealth advisors-8.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025142-30.39%50,518,761-37.12%630.61%62-45.13%48-12.73%
Jun 30, 20252110.48%83,114,83911.81%1051.18%11626.09%57-18.57%
Mar 31, 2025213-76,727,6550.58%971.02%92-3.16%725.88%
Dec 31, 2024117-43.75%35,698,172-52.33%450.50%51-43.33%38-38.71%
Sep 30, 2024207-4.17%74,878,3241.04%961.05%91-5.21%61-15.28%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
American Funds SMALLCAP World A3.83M4.99%-1.48M
Polar Capital Biotech S Inc2.00M2.60%-
iShares Russell 2000 ETF1.83M2.38%-
Strategic Advisers Fidelity US TtlStk1.77M2.29%73.48K
Vanguard Health Care Inv1.60M2.08%-942.73K
Fidelity Select Health Care1.28M1.66%-
Fidelity Small Cap Index762.45K0.99%762.45K
Fidelity Advisor Health Care I740.00K0.96%-20.00K
Fidelity Advisor Biotechnology I710.76K0.92%-
Pictet Biotech658.54K0.87%658.54K

Recent Insider Transactions

DateNameRoleActivityValue
Dec 08, 2025MORTIMER IAN PRESIDENT & CEOSell$93.10K
Dec 08, 2025MORTIMER IAN PRESIDENT & CEOSell$402.10K
Dec 05, 2025MORTIMER IAN PRESIDENT & CEOSell$647.31K
Nov 28, 2025MORTIMER IAN PRESIDENT & CEOSell$4.37K
Oct 01, 2025MORTIMER IAN PRESIDENT, CEO & INTERIM CFOSell$1.00M

Insider Transactions Trends

DateBuySell
2025 Q4-5
2025 Q2-1
2025 Q1-4
2024 Q4-4
2024 Q2--

XENE Ownership FAQ

Who Owns Xenon Pharmaceuticals?

Xenon Pharmaceuticals shareholders are primarily institutional investors at 63.99%, followed by 0.14% insiders and 35.87% retail investors. The average institutional ownership in Xenon Pharmaceuticals's industry, Biotech Stocks , is 45.22%, which Xenon Pharmaceuticals exceeds.

Who owns the most shares of Xenon Pharmaceuticals?

Xenon Pharmaceuticals’s largest shareholders are Fmr (8.92M shares, 11.30%), Avoro capital advisors (5.4M shares, 6.84%), and Blackrock funding, inc. /de (4.77M shares, 6.04%). Together, they hold 24.18% of Xenon Pharmaceuticals’s total shares outstanding.

Does Blackrock own Xenon Pharmaceuticals?

BlackRock is not among the top 10 institutional shareholders of Xenon Pharmaceuticals.

Who is Xenon Pharmaceuticals’s biggest shareholder by percentage of total assets invested?

Commodore capital lp is Xenon Pharmaceuticals’s biggest shareholder by percentage of total assets invested, with 5.29% of its assets in 2.7M Xenon Pharmaceuticals shares, valued at 108.4M$.

Who is the top mutual fund holder of Xenon Pharmaceuticals shares?

American Funds SMALLCAP World A is the top mutual fund holder of Xenon Pharmaceuticals shares, with 4.99% of its total shares outstanding invested in 3.83M Xenon Pharmaceuticals shares.

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