13F

Stock

Xenon Pharmaceuticals Inc.

XENE · held by 291 managers

Reported value

$5.62B

Holders

291

+72 new · −33 exited

Holders’ est. mark

$1.02B

Price effect on 185 books still in the name

Largest holder

$629.1M

Fidelity

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Fidelity10.8M$629.1M$118.9MAdded$229.3M
Avoro Capital Advisors LLC5.78M$336M$72.3MAdded$92.9M
BlackRock, Inc.5.64M$328M$68MAdded$99.4M
WELLINGTON MANAGEMENT GROUP LLP4.83M$280.8M$63.5MAdded$67.3M
Driehaus Capital Management LLC4.49M$261.2M$59.9MAdded$57.8M
Polar Capital Holdings Plc4.41M$256.2M$32.9MAdded$145.7M
JANUS HENDERSON GROUP PLC4.18M$242.9M$54.4MAdded$59.7M
Capital International Investors2.67M$155.5M$35.7MAdded$2.48M
Citadel2.65M$154.3M$17.6MAdded$95.1M
JPMORGAN CHASE & CO1.92M$106.9M$16MAdded$39.9M
State Street1.72M$100M$19.9MAdded$33.2M
Affinity Asset Advisors, LLC1.68M$97.4M$16.7MAdded$41.4M
DEERFIELD MANAGEMENT COMPANY, L.P.1.62M$94M$7.23MAdded$69.7M
Holocene Advisors, LP1.52M$88.3M$17.1MAdded$30.8M
WESTFIELD CAPITAL MANAGEMENT CO LP1.4M$81.5M$16.4MAdded$26.5M
Caligan Partners LP1.39M$81M$7.33MAdded$56.4M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1.34M$78M$61.6MAdded$78M
BRAIDWELL LP1.34M$77.8M$17.8MCut−$3.97M
JENNISON ASSOCIATES LLC1.32M$76.7M$17.2MAdded$18.8M
Siren, L.L.C.1.32M$76.7M$10.8MAdded$40.2M
Alyeska Investment Group, L.P.1.3M$75.6MNew
FRANKLIN RESOURCES INC1.28M$74.5M$10.1MAdded$40.5M
GEODE CAPITAL MANAGEMENT, LLC1.09M$63.5M$12.7MAdded$20.9M
ALLIANCEBERNSTEIN L.P.1.4M$62.9M$1Cut−$8.54M
ORBIMED ADVISORS LLC1.06M$61.6M$5.96MAdded$41.6M
FEDERATED HERMES, INC.972.2K$56.5M$8.96MAdded$26.4M
Capital World Investors840.1K$48.9M$8.74MAdded$19.5M
Commodore Capital LP825K$48M$11MCut−$32.7M
First Turn Management, LLC786.8K$45.8M$10.5MAdded$9.91M
GOLDMAN SACHS GROUP INC769.9K$44.8M$9.28MAdded$13.6M
Rock Springs Capital Management LP763K$44.4M$10.2MAdded$9.06M
Fiera Capital Corp709.5K$41.3M$9.15MAdded$10.5M
AMERICAN CENTURY COMPANIES INC679.3K$39.5M$9.06MAdded$9M
Pictet Asset Management Holding SA679.7K$39.2M$8.12MAdded$11.2M
Vestal Point Capital, LP639.9K$37.2M$8MAdded$10.3M
Aberdeen Group plc609.9K$35.5M$8.13MAdded$1.84M
TWO SIGMA INVESTMENTS, LP606.1K$35.2M$5.82MAdded$15.7M
MPM BIOIMPACT LLC588.7K$34.2M$6.47MAdded$12.5M
LOOMIS SAYLES & CO L P564.9K$32.8M$7.53MAdded$5.42M
VANGUARD PORTFOLIO MANAGEMENT LLC543.1K$31.6MHeld
NORTHERN TRUST CORP527.8K$30.7M$5.85MAdded$11M
Parkman Healthcare Partners LLC497K$28.9M$2.06MAdded$22M
TUDOR INVESTMENT CORP ET AL495.6K$28.8M$3.39MAdded$17.4M
Octagon Capital Advisors LP490K$28.5MNew
NOVO HOLDINGS A/S485.4K$28.2MNew
Candriam S.C.A.476.5K$27.7M$5.56MAdded$9M
MORGAN STANLEY473.8K$27.5M$3.92MAdded$14.4M
ADAGE CAPITAL PARTNERS GP, L.L.C.470K$27.3M$6.27MCut−$3.38M
Logos Global Management LP450K$26.2MNew
Trails Edge Capital Partners, LP440K$25.6M$5.87MCut−$1.18M
Bank of New York Mellon Corp396.1K$23M$5.16MAdded$5.68M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC375.2K$21.8M$3.15KAdded$21.8M
BAKER BROS. ADVISORS LP370.2K$21.5M$4.93MAdded$4.93M
TimesSquare Capital Management, LLC359.3K$20.9M$4.79MCut−$2.98M
Schonfeld Strategic Advisors LLC324.7K$18.9MNew
Sofinnova Investments, Inc.305.2K$17.7M$798.5KAdded$15.1M
Renaissance Technologies300.5K$17.5MNew
Soleus Capital Management, L.P.292K$17MNew
BOOTHBAY FUND MANAGEMENT, LLC270.4K$15.7M$475.6KAdded$14.1M
BANK OF AMERICA CORP /DE/265.3K$15.4M$2.95MAdded$5.5M
Redmile Group, LLC262.7K$15.3M$1.78MAdded$9.27M
STATE OF WISCONSIN INVESTMENT BOARD254.5K$14.8M$2.74MAdded$5.58M
DAFNA Capital Management LLC250.8K$14.6M$3.34MAdded$1.68M
Nuveen, LLC250K$14.5M$2.88MAdded$4.85M
NAN FUNG TRINITY (HK) LTD247.8K$14.4M$3.03MAdded$4.23M
Nicholas Investment Partners, LP247.1K$14.4M$3.24MAdded$3.48M
Allspring Global Investments Holdings, LLC246.3K$14MNew
BARCLAYS PLC238.2K$13.9M$3.18MCut−$13.1M
Balyasny Asset Management L.P.233.9K$13.6M$1.12MAdded$9.82M
ADAR1 Capital Management, LLC228.9K$13.3M$2.72MAdded$4.17M
Patient Square Capital LP227K$13.2M$1.82MAdded$7.08M
MILLENNIUM MANAGEMENT LLC201.8K$11.7M$2.69MCut−$16.7M
Integral Health Asset Management, LLC200K$11.6MNew
SILVERARC CAPITAL MANAGEMENT, LLC197.8K$11.5MNew
CHARLES SCHWAB INVESTMENT MANAGEMENT INC189.1K$11M$2.52MAdded$2.52M
NEW YORK STATE COMMON RETIREMENT FUND188.5K$11M$2.49MAdded$2.59M
NEXTBio Capital Management LP183.2K$10.7M$2.44MAdded$2.42M
DNB Asset Management AS181.1K$10.5M$2.41MCut−$1.7M
SUSQUEHANNA INTERNATIONAL GROUP, LLP177.1K$10.3M$110.9KAdded$9.93M
ExodusPoint Capital Management, LP173.4K$10.1MNew
DEUTSCHE BANK AG\162.7K$9.46M$2.17MAdded$933.7K
Foresite Capital Management IV, LLC160K$9.3M$2.13MAdded$2.13M
Swiss National Bank157.7K$9.17M$1.52MAdded$4.06M
Jump Financial, LLC155.8K$9.06M$413.1KAdded$7.67M
Woodline Partners LP150.3K$8.74MNew
PEREGRINE CAPITAL MANAGEMENT LLC143.1K$8.32M$1.91MAdded$486.5K
STEMPOINT CAPITAL LP140.8K$8.18M$1.88MCut−$7.44M
NEUBERGER BERMAN GROUP LLC130.4K$7.58M$1.74MCut−$426.5K
Eversept Partners, LP129.6K$7.53M$1.73MCut−$2.84M
Russell Investments Group, Ltd.129.4K$7.52M$1.15MAdded$3.66M
SPHERA FUNDS MANAGEMENT LTD.127K$7.39MNew
HSBC HOLDINGS PLC121.6K$7.07MNew
WELLS FARGO & COMPANY/MN115.7K$6.73M$1.54MCut−$100.8K
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC115.6K$6.72M$1.54MAdded$1.52M
SEI INVESTMENTS CO114.4K$6.65M$584.7KAdded$4.69M
Granahan Investment Management, LLC104.5K$6.08M$1.24MAdded$1.92M
RHUMBLINE ADVISERS101.8K$5.92M$1.2MAdded$1.88M
BURKEHILL GLOBAL MANAGEMENT, LP100K$5.82MNew
UBS Group AG99.6K$5.79M$700.3KAdded$3.44M
AXIOM INVESTORS LLC /DE99.6K$5.79MNew
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM92.7K$5.39M$754KAdded$2.86M
ROYAL BANK OF CANADA90.4K$5.25M$1.2MAdded$1.23M
RAYMOND JAMES FINANCIAL INC88.6K$5.15M$1.11MAdded$1.42M
Y-Intercept (Hong Kong) Ltd85.4K$4.97M$972.5KAdded$1.7M
BNP PARIBAS FINANCIAL MARKETS80.4K$4.67M$1.07MAdded$485.8K
Aquatic Capital Management LLC79.2K$4.61MNew
AMERIPRISE FINANCIAL INC78.9K$4.59M$1.05MCut−$321.4K
SCHRODER INVESTMENT MANAGEMENT GROUP81.2K$4.51M$927.6KAdded$927.6K
VANGUARD FIDUCIARY TRUST CO75.1K$4.37MHeld
SEVEN GRAND MANAGERS, LLC75K$4.36MNew
VANGUARD ASSET MANAGEMENT, Ltd74.5K$4.33MHeld
Legal & General Group Plc73.5K$4.27M$936.6KAdded$1.12M
VOYA INVESTMENT MANAGEMENT LLC68.4K$3.98M$811.2KAdded$1.25M
ALPS ADVISORS INC67.7K$3.94M$843.8KAdded$1.1M
Trexquant Investment LP67.4K$3.92MNew
Informed Momentum Co LLC66.5K$3.87MNew
VANGUARD CAPITAL MANAGEMENT LLC66K$3.84MHeld
Artia Global Partners LP65K$3.78M$533.2KAdded$1.99M
CASTLEARK MANAGEMENT LLC64.6K$3.75MNew
Atika Capital Management LLC59.9K$3.48M$798.5KCut−$662.9K
Invesco Ltd.59.1K$3.44M$679.1KAdded$1.15M
LMR Partners LLP56.2K$3.27MNew
Quantinno Capital Management LP55.4K$3.22M$328.3KAdded$2.12M
Verition Fund Management LLC55K$3.2M$733.1KCut−$1M
Palo Alto Investors LP51.3K$2.99M$684.4KCut−$1.34M
LAZARD ASSET MANAGEMENT LLC50.8K$2.95M$676.6KCut−$574.3K
VICTORY CAPITAL MANAGEMENT INC50K$2.91MNew
HighVista Strategies LLC49K$2.85MNew
Erste Asset Management GmbH50K$2.78M$561KAdded$561K
MetLife Investment Management, LLC47.3K$2.75M$560.2KAdded$869.4K
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.47K$2.73M$627KAdded$586K
Qube Research & Technologies Ltd44K$2.56MNew
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.40.5K$2.36M$470.7KAdded$773.2K
Legato Capital Management LLC36.6K$2.13M$488.4KAdded$470.6K
ENVESTNET ASSET MANAGEMENT INC36.1K$2.1M$477.2KAdded$492.7K
Zurcher Kantonalbank (Zurich Cantonalbank)35.2K$2.05M$341.1KAdded$900.2K
ACT CAPITAL MANAGEMENT, LLC33.5K$1.95MNew
Calamos Advisors LLC30.4K$1.77MNew
Creative Planning29.8K$1.73M$255.9KAdded$873.4K
Corient Private Wealth LLC28.3K$1.65M$1.32MAdded$1.5M
XTX Topco Ltd28K$1.63M$286.6KAdded$664.7K
Rhenman & Partners Asset Management AB28K$1.63M$373.2KCut−$4.6M
TD Asset Management Inc27.1K$1.57M$360.9KCut−$135.4K
Swedbank AB26.2K$1.52MNew
SummitTX Capital, L.P.26.2K$1.52MNew
BAMCO INC /NY/25K$1.45M$333.2KAdded$109.2K
Vestmark Advisory Solutions, Inc.24K$1.4M$291.7KAdded$416.2K
Rathbones Group PLC23.7K$1.38M$315.5KAdded$315.5K
Police & Firemen's Retirement System of New Jersey23.4K$1.36M$268.3KAdded$458.9K
HighMark Wealth Management LLC23K$1.34M$306.6KAdded$306.6K
ARIZONA STATE RETIREMENT SYSTEM21.9K$1.27M$215.7KAdded$546.5K
MANUFACTURERS LIFE INSURANCE COMPANY, THE21.7K$1.26M$294.2KCut−$193.4K
SANDERS MORRIS HARRIS LLC21.5K$1.25MNew
Birchview Capital, LP21K$1.22M$279.9KAdded$279.9K
ASSETMARK, INC20.3K$1.18M$270.2KAdded$225.5K
Vanguard Investments Australia, Ltd.20K$1.16MHeld
State of New Jersey Common Pension Fund D19.8K$1.15M$263.1KAdded$267.1K
Connor, Clark & Lunn Investment Management Ltd.19.4K$1.13MNew
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM19.1K$1.11MNew
INTECH INVESTMENT MANAGEMENT LLC19.1K$1.11M$254.1KCut−$49.7K
CIBC WORLD MARKET INC.19K$1.1M$179.4KAdded$499.2K
D. E. Shaw & Co., Inc.18.9K$1.1M$252.5KCut−$281.4K
MARTINGALE ASSET MANAGEMENT L P18.8K$1.09MNew
Susquehanna Portfolio Strategies, LLC18.5K$1.07MNew
Campbell & CO Investment Adviser LLC18.2K$1.06M$214.7KAdded$333.9K
Amundi18K$1.05M$61.4KAdded$840.9K
KLP KAPITALFORVALTNING AS17.6K$1.02M$164KAdded$472.2K
STIFEL FINANCIAL CORP16.7K$972.2K$222.8KAdded$185.6K
ProShare Advisors LLC16.3K$944.9K$216.6KAdded$170.5K
China Universal Asset Management Co., Ltd.14.8K$858.5K$167.9KAdded$294.1K
Hudson Bay Capital Management LP14.1K$818.3KNew
Orion Porfolio Solutions, LLC13.8K$803.4K$184.2KAdded$157.7K
SBI Okasan Asset Management Co.Ltd.14.4K$799.9K$161.6KAdded$161.6K
Neo Ivy Capital Management13.7K$797.2K$99.7KAdded$462.1K
PRUDENTIAL FINANCIAL INC13K$756.5KNew
CITIGROUP INC12.2K$706.6K$98.1KAdded$376.7K
Brevan Howard Capital Management LP12K$700.2KNew
Covalis Capital LLP10K$581.5KNew
Elmwood Wealth Management, Inc.9.81K$570.3K$130.7KAdded$88.1K
Engineers Gate Manager LP9.33K$542.3KNew
FIRST TRUST ADVISORS LP9.13K$531.1K$84.8KAdded$246K
J. Safra Sarasin Holding AG9.07K$527.5K$120.9KCut−$81.2K
EntryPoint Capital, LLC8.83K$513.6K$67KAdded$288.2K
Vanguard Personalized Indexing Management, LLC8.76K$509.5K$60.4KAdded$306.3K
XPONANCE LLC8.46K$492.2K$79.6KAdded$224.4K
PNC Financial Services Group, Inc.8.1K$470.8K$87.6KAdded$176.2K
Allianz Asset Management GmbH7.6K$441.9K$101.3KAdded$20.6K
TEACHER RETIREMENT SYSTEM OF TEXAS7.6K$441.9K$101.3KAdded$55K
Icahn Capital7.28K$423.3KNew
Ameritas Investment Partners, Inc.7.14K$415.1K$82.2KAdded$138.6K
Advisors Asset Management, Inc.6.96K$404.8K$92.8KAdded$45.7K
OXFORD ASSET MANAGEMENT LLP6.88K$400.3K$91.8KAdded$69.6K
PenderFund Capital Management Ltd.6.85K$398.3K$91.3KAdded$91.3K
Bridgefront Capital, LLC6.56K$381.7KNew
Longaeva Partners L.P.6.25K$363.4KNew
PRINCIPAL FINANCIAL GROUP INC6.24K$363.1K$59.8KAdded$161.9K
Tidal Investments LLC6.22K$362KNew
Virtus Investment Advisers, LLC6.19K$359.8K$80.5KAdded$89.3K
Headlands Technologies LLC6.12K$355.9KNew
Tower Research Capital LLC (TRC)6.11K$355K$43.1KAdded$210.1K
LETSON INVESTMENT MANAGEMENT, INC.6K$348.9K$80KAdded$80K
STRS OHIO5.7K$331.5K$17.3KAdded$273.2K
DRW Securities, LLC5.46K$317.6KNew
Caprock Group, LLC5.29K$307.7K$67.6KAdded$80.5K
Ensign Peak Advisors, Inc5.19K$302K$69.2KAdded$69.2K
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO5K$290.8K$66.6KAdded$66.7K
LPL Financial LLC4.96K$288.7KNew
CITIZENS FINANCIAL GROUP INC/RI4.96K$288.6K$66.2KAdded$64.5K
Swiss Life Asset Management Ltd4.85K$281.9KNew
CIBC Bancorp USA Inc.4.35K$252.9KHeld
Mirae Asset Global Investments Co., Ltd.4.34K$252.3K$50.1KAdded$84K
OPPENHEIMER ASSET MANAGEMENT INC.4.33K$251.5KNew
Snowden Capital Advisors LLC4.22K$245.6KNew
PSP Research LLC4.2K$244.2K$56KCut−$279.2K
Aigen Investment Management, LP4.12K$239.8KNew
Cetera Investment Advisers3.62K$210.7KNew
SEEDS INVESTOR LLC3.42K$203.2KNew
JANE STREET GROUP, LLC3.47K$201.7KNew
Caitong International Asset Management Co., Ltd3.33K$193.6K$16.3KAdded$138.7K
Eurizon Capital SGR S.p.A.2.65K$147.9KNew
JONES FINANCIAL COMPANIES LLLP2.4K$130.7K$1.45KAdded$124K
IFP Advisors, Inc1.87K$108.8K$24.9KAdded$24.7K
GF FUND MANAGEMENT CO. LTD.1.74K$100.9K$20.2KAdded$32.9K
State of Wyoming1.38K$80.3K$18.4KAdded$13K
PRICE T ROWE ASSOCIATES INC /MD/1.33M$77.3K$11.5KAdded$38.7K
Axiom Investment Management LLC1K$58.1KHeld
SBI Securities Co., Ltd.988$57.5K$13Added$57.4K
T. Rowe Price Investment Management, Inc.952K$55.4K$7.3KAdded$30.8K
NISA INVESTMENT ADVISORS, LLC951$55.3K$12.3KAdded$13.9K
Kemnay Advisory Services Inc.764$44.4K$1.64KAdded$38.9K
Blue Trust, Inc.745$43.3K$9.93KAdded$9.93K
Sterling Capital Management LLC560$32.6K$6.54KAdded$10.6K
Bayforest Capital Ltd555$32.3KNew
SIGNATUREFD, LLC553$32.2K$6.3KAdded$11K
CWM, LLC510$29.7K$21.3KAdded$29.6K
Vanguard Global Advisers, LLC494$28.7KHeld
MAI Capital Management392$22.8K$3.48KAdded$11.1K
OSAIC HOLDINGS, INC.389$22.6K$4.25KAdded$8.32K
GAMMA Investing LLC373$21.7K$3.52KAdded$9.86K
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/305$17.7K$3.13KAdded$7.2K
HUNTINGTON NATIONAL BANK288$16.7KNew
Mitsubishi UFJ Asset Management Co., Ltd.276$16K$3.77KAdded$3.77K
US BANCORP \DE\272$15.8K$2.33KAdded$7.97K
J.Safra Asset Management Corp268$15.6K$1.16KAdded$11.7K
ALGERT GLOBAL LLC264.2K$15.4K$1.64KAdded$9.84K
Duquesne Family Office238.6K$13.9KNew
NATIONAL BANK OF CANADA /FI/235$13.7K$2.53KAdded$5.15K
Rockefeller Capital Management L.P.200$11.6K$2.67KCut−$37.7K
Farther Finance Advisors, LLC189$10.7K$2.24KCut−$36.7K
Rossby Financial, LCC181$10.3K$557Added$8.15K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.