XENON PHARMACEUTICALS INC (XENE) Institutional Ownership Changes & 13F Activity

XENON PHARMACEUTICALS INC (XENE). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Wellington Management Group Llp, Price T Rowe Associates Inc, Citadel Advisors Llc, T. Rowe Price Investment Management, Inc., and Two Sigma Investments, Lp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+7,248+33.4%28,932$1.75MQ2 2026Sep 09, 2026
Citadel Advisors LlcSell-1,251,748-47.2%1,401,242$84.58MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+3,100+40.8%10,700$645.85KQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcBuy+1010$604.00Q2 2026Aug 28, 2026
Corient Private Wealth LlcBuy+430+1.5%28,732$1.73MQ2 2026Aug 27, 2026
California State Teachers Retirement SystemSell-7-0.0%92,740$5.60MQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+4,1934,193$253.09KQ2 2026Aug 19, 2026
Seven Fleet Capital Management LpBuy+33,30033,300$2.08MQ2 2026Aug 17, 2026
Capstone Investment Advisors, LlcBuy+8,9258,925$538.71KQ2 2026Aug 17, 2026
Wellington Management Group LlpSell-3,404,149-70.5%1,425,492$86.04MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+1,918,628+144.3%3,248,219$196.06MQ2 2026Aug 14, 2026
T. Rowe Price Investment Management, Inc.Buy+1,216,626+127.8%2,168,581$130.90MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+1,036,763+171.1%1,642,848$99.16MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+903,458903,458$54.53MQ2 2026Aug 14, 2026
Alyeska Investment Group, L.P.Sell-601,777-46.3%697,692$42.11MQ2 2026Aug 14, 2026
Caligan Partners LpSell-503,083-36.1%889,944$53.72MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+318,548318,548$19.23MQ2 2026Aug 14, 2026
Man Group PlcBuy+310,617310,617$18.75MQ2 2026Aug 14, 2026
Barclays PlcSell-218,163-91.6%20,046$1.21MQ2 2026Aug 14, 2026
Braidwell LpSell-207,000-15.5%1,131,452$68.29MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+204,982+1082.3%223,922$13.52MQ2 2026Aug 14, 2026
First Turn Management, LlcSell-186,644-23.7%600,200$36.23MQ2 2026Aug 14, 2026
Millennium Management LlcBuy+174,992+86.7%376,777$22.74MQ2 2026Aug 14, 2026
Adage Capital Partners Gp, L.L.C.Sell-170,000-36.2%300,000$18.11MQ2 2026Aug 14, 2026
Orbimed Advisors LlcSell-167,500-15.8%892,471$53.87MQ2 2026Aug 14, 2026
Polar Capital Holdings PlcBuy+165,244+3.8%4,570,556$275.88MQ2 2026Aug 14, 2026
Alliancebernstein L.P.Buy+158,979+11.3%1,562,276$90.85MQ2 2026Aug 14, 2026
Susquehanna International Group, LlpSell-154,879-87.4%22,258$1.34MQ2 2026Aug 14, 2026
Nicholas Investment Partners, LpBuy+148,743+60.2%395,844$23.89MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+138,800+52.3%404,067$24.39MQ2 2026Aug 14, 2026
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Frequently asked questions about XENE activity

  • Which institutional owners are buying XENE?

    Institutional owners buying XENE include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in XENE activity?

    "Buy" means an investor increased their reported position in XENE compared to the prior reporting period. This reflects growing exposure to XENON PHARMACEUTICALS INC (XENE) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in XENE increasing?

    Institutional interest in XENE can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.