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Xenon Pharmaceuticals Inc.

XENE
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001582313

In the last 90 days, Xenon Pharmaceuticals Inc. insiders filed 0 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, Q3 2025

Institutional positions in Xenon Pharmaceuticals Inc. as of Sep 30, 2025. 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
219
+15 vs. Q2 2025
Shares held
84.3M
+1.20M (+1.4%) vs. Q2 2025
Total value
$3.39B
+$783.3M (+30.1%) vs. Q2 2025
New holders
35
68 more added
Sold out
20
71 more reduced

2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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.

Institutional holdersQ3 2025: 219 institutions
Q1 2021: 91 institutionsQ2 2021: 103 institutionsQ3 2021: 118 institutionsQ4 2021: 130 institutionsQ1 2022: 132 institutionsQ2 2022: 151 institutionsQ3 2022: 154 institutionsQ4 2022: 159 institutionsQ1 2023: 163 institutionsQ2 2023: 175 institutionsQ3 2023: 181 institutionsQ4 2023: 204 institutionsQ1 2024: 220 institutionsQ2 2024: 213 institutionsQ3 2024: 203 institutionsQ4 2024: 209 institutionsQ1 2025: 206 institutionsQ2 2025: 206 institutionsQ3 2025: 219 institutionsQ4 2025: 245 institutionsQ1 2026: 290 institutionsQ2 2026: 315 institutions
Value heldQ3 2025: $3.39B
Q1 2021: $590.0MQ2 2021: $620.0MQ3 2021: $521.7MQ4 2021: $1.49BQ1 2022: $1.50BQ2 2022: $1.73BQ3 2022: $2.09BQ4 2022: $2.38BQ1 2023: $2.19BQ2 2023: $2.36BQ3 2023: $2.10BQ4 2023: $3.32BQ1 2024: $3.16BQ2 2024: $2.89BQ3 2024: $2.95BQ4 2024: $2.99BQ1 2025: $2.58BQ2 2025: $2.60BQ3 2025: $3.39BQ4 2025: $3.78BQ1 2026: $5.80BQ2 2026: $6.10B
Institutions holding XENE and their total value by quarter
QuarterHoldersValue
Q2 2026315$6.10B
Q1 2026290$5.80B
Q4 2025245$3.78B
Q3 2025219$3.39B
Q2 2025206$2.60B
Q1 2025206$2.58B
Q4 2024209$2.99B
Q3 2024203$2.95B
Q2 2024213$2.89B
Q1 2024220$3.16B
Q4 2023204$3.32B
Q3 2023181$2.10B
Q2 2023175$2.36B
Q1 2023163$2.19B
Q4 2022159$2.38B
Q3 2022154$2.09B
Q2 2022151$1.73B
Q1 2022132$1.50B
Q4 2021130$1.49B
Q3 2021118$521.7M
Q2 2021103$620.0M
Q1 202191$590.0M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Xenon Pharmaceuticals Inc.; share changes are against Q2 2025.

Institutions holding XENE in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Manufacturers Life Insurance Company, The23,932$960.9K0.00%−2,147−8.2%Reduced
NJ State Employees Deferred Compensation Plan25,000$1.00M0.11%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)25,589$1.03M0.00%+1,723+7.2%Added
HighMark Wealth Management LLC26,100$1.05M0.46%00.0%Unchanged
Campbell & CO Investment Adviser LLC28,669$1.15M0.09%+28,669New
Boothbay Fund Management, LLC28,859$1.16M0.03%+28,859New
Bamco Inc30,000$1.20M0.00%−26,000−46.4%Reduced
J. Safra Sarasin Holding AG30,168$1.21M0.02%−51,880−63.2%Reduced
TLS Advisors LLC32,956$1.38M4.02%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.35,301$1.42M0.00%−6,347−15.2%Reduced
Alps Advisors Inc37,300$1.50M0.01%−4,080−9.9%Reduced
Envestnet Asset Management Inc37,448$1.50M0.00%−1,955−5.0%Reduced
DekaBank Deutsche Girozentrale39,000$1.51M0.00%00.0%Unchanged
Atika Capital Management LLC38,000$1.53M0.13%+38,000New
Artia Global Partners LP40,000$1.61M0.28%00.0%Unchanged
Price T Rowe Associates Inc41,692$1.68M0.00%+3,757+9.9%Added
MetLife Investment Management44,221$1.78M0.01%−1,326−2.9%Reduced
Susquehanna International Group, LLP45,907$1.84M0.00%−176,445−79.4%Reduced
D. E. Shaw & Co., Inc.48,455$1.95M0.00%−93,328−65.8%Reduced
Erste Asset Management GmbH50,000$1.95M0.02%00.0%Unchanged
Neo Ivy Capital Management49,838$2.00M0.49%+49,838New
Avidity Partners Management LP53,400$2.14M0.49%−54,491−50.5%Reduced
Algert Global LLC54,255$2.18M0.04%−48,090−47.0%Reduced
State of New Jersey Common Pension Fund D55,711$2.24M0.01%−6,061−9.8%Reduced
Invesco Ltd.56,064$2.25M0.00%−3,534−5.9%Reduced
Verition Fund Management LLC57,117$2.29M0.01%+57,117New
California State Teachers Retirement System60,237$2.42M0.00%+40.0%Added
Voya Investment Management LLC60,858$2.44M0.00%+1,393+2.3%Added
Russell Investments Group, Ltd.69,892$2.81M0.00%+17,756+34.1%Added
Raymond James Financial Inc69,922$2.81M0.00%+4,708+7.2%Added
Tudor Investment Corp Et Al76,824$3.08M0.02%+76,824New
Schroder Investment Management Group81,156$3.17M0.00%−47,947−37.1%Reduced
Legal & General Group Plc79,848$3.21M0.00%−1,944−2.4%Reduced
Rhenman & Partners Asset Management AB81,000$3.25M0.36%+46,000+131.4%Added
HighVista Strategies LLC82,190$3.30M0.81%+36,570+80.2%Added
Granahan Investment Management Inc87,470$3.51M0.14%−152,568−63.6%Reduced
Jane Street Group, LLC89,879$3.61M0.00%+46,203+105.8%Added
Mutual of America Capital Management LLC94,935$3.81M0.04%−633−0.7%Reduced
Ameriprise Financial Inc97,567$3.92M0.00%−24,459−20.0%Reduced
UBS Group AG106,744$4.29M0.00%−46,314−30.3%Reduced
Rhumbline Advisers106,791$4.29M0.00%−2,909−2.7%Reduced
Barclays PLC111,300$4.47M0.00%−41,470−27.1%Reduced
Deutsche Bank AG112,951$4.53M0.00%+8,417+8.1%Added
Wells Fargo & Company115,221$4.63M0.00%+2,659+2.4%Added
Nicholas Investment Partners, LP119,098$4.78M0.37%+50,202+72.9%Added
Royal Bank of Canada120,545$4.84M0.00%−26,681−18.1%Reduced
Swiss National Bank126,400$5.07M0.00%+2,100+1.7%Added
Moore Capital Management, LP140,000$5.62M0.11%+50,000+55.6%Added
Nan Fung Trinity (HK) Ltd158,605$6.37M0.64%00.0%Unchanged
BNP Paribas Arbitrage, SA159,238$6.39M0.00%+141,394+792.4%Added
Foresite Capital Management IV, LLC160,000$6.42M3.52%00.0%Unchanged
New York State Common Retirement Fund171,708$6.89M0.01%+5,236+3.1%Added
Neuberger Berman Group LLC172,354$6.92M0.01%+24,943+16.9%Added
Parkman Healthcare Partners LLC176,137$7.07M0.78%+25,764+17.1%Added
AXA Investment Managers S.A.176,157$7.07M0.02%+176,157New
Charles Schwab Investment Management Inc188,747$7.58M0.00%−3,495−1.8%Reduced
ADAR1 Capital Management, LLC189,098$7.59M0.75%−70,405−27.1%Reduced
StemPoint Capital LP192,295$7.72M1.56%+192,295New
Bank of America Corp199,106$7.99M0.00%−159,326−44.5%Reduced
Great Point Partners LLC200,000$8.03M3.35%00.0%Unchanged
Perceptive Advisors LLC200,791$8.06M0.23%00.0%Unchanged
State of Wisconsin Investment Board208,372$8.37M0.02%+33,522+19.2%Added
Nuveen, LLC224,289$9.01M0.00%−4,278−1.9%Reduced
Federated Hermes, Inc.232,500$9.33M0.02%00.0%Unchanged
DnB Asset Management AS249,081$10.0M0.04%+14,924+6.4%Added
Jain Global LLC252,379$10.1M0.13%+252,379New
DAFNA Capital Management LLC287,939$11.6M2.86%00.0%Unchanged
Balyasny Asset Management LLC322,456$12.9M0.03%+253,587+368.2%Added
Tri Locum Partners LP366,102$14.7M3.38%+366,102New
Morgan Stanley366,572$14.7M0.00%−21,024−5.4%Reduced
Baker Bros. Advisors LP370,208$14.9M0.11%00.0%Unchanged
Candriam Luxembourg S.C.A.396,636$15.9M0.08%00.0%Unchanged
Bank of New York Mellon Corp418,416$16.8M0.00%−17,604−4.0%Reduced
OrbiMed Advisors LLC419,600$16.8M0.40%−528,277−55.7%Reduced
Caligan Partners LP444,565$17.8M2.48%+444,565New
Dimensional Fund Advisors LP454,023$18.2M0.00%+74,035+19.5%Added
Northern Trust Corp498,147$20.0M0.00%+8,207+1.7%Added
MPM Oncology Impact Management LP503,398$20.2M3.31%+180,000+55.7%Added
Saturn V Capital Management LLC503,701$20.2M4.44%+35,337+7.5%Added
Fiera Capital Corp519,999$20.9M0.07%−10,684−2.0%Reduced
Deerfield Management Company, L.P. (Series C)542,020$21.8M0.33%00.0%Unchanged
TimesSquare Capital Management, LLC556,800$22.4M0.32%−14,442−2.5%Reduced
Standard Life Aberdeen plc579,145$23.3M0.04%+57,653+11.1%Added
T. Rowe Price Investment Management, Inc.599,113$24.1M0.01%+522,170+678.6%Added
Marshall Wace, LLP611,982$24.6M0.03%−408,272−40.0%Reduced
Loomis Sayles & Co L P640,626$25.7M0.03%−16,539−2.5%Reduced
Capital World Investors655,737$26.3M0.00%00.0%Unchanged
American Century Companies Inc659,257$26.5M0.01%−20,600−3.0%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.670,257$26.9M0.07%+9,175+1.4%Added
Franklin Resources Inc695,900$27.9M0.01%+29,434+4.4%Added
Goldman Sachs Group Inc720,659$28.9M0.00%+158,859+28.3%Added
First Turn Management, LLC799,743$32.1M4.82%+139,126+21.1%Added
Siren, L.L.C.812,761$32.6M1.28%00.0%Unchanged
Adage Capital Partners GP, L.L.C.835,100$33.5M0.05%−455,000−35.3%Reduced
Vanguard Group Inc851,386$34.2M0.00%−21,842−2.5%Reduced
Rock Springs Capital Management LP851,744$34.2M2.00%−79,937−8.6%Reduced
Citadel Advisors LLC959,098$38.5M0.03%+839,053+698.9%Added
Geode Capital Management, LLC977,435$39.2M0.00%+7,092+0.7%Added
Vestal Point Capital, LP1,100,000$44.2M2.00%−900,000−45.0%Reduced
Jennison Associates LLC1,135,235$45.6M0.03%+438,852+63.0%Added