13F

Stock

Alkermes plc.

ALKS · held by 367 managers

Reported value

$4.73B

Holders

367

+5 new · −3 exited

Holders’ est. mark

−$16.5M

Price effect on 11 books still in the name

Largest holder

$791.1M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.28.3M$791.1M—Held
Vanguard18M$503.8M—Held
BAKER BROS. ADVISORS LP10M$280.1M—Held
State Street9.47M$265.1M—Held
Renaissance Technologies6.67M$186.6M—Held
AMERICAN CENTURY COMPANIES INC5.96M$166.7M—Held
JPMORGAN CHASE & CO5.18M$145.1M—Held
DIMENSIONAL FUND ADVISORS LP4.41M$123.5M—Held
GEODE CAPITAL MANAGEMENT, LLC4.08M$114.2M—Held
Commodore Capital LP3.55M$99.3M—Held
WELLINGTON MANAGEMENT GROUP LLP3.02M$84.5M—Held
PRIMECAP MANAGEMENT CO/CA/2.56M$71.7M—Held
UBS Group AG2.54M$71.2M—Held
Nuveen, LLC2.43M$67.9M—Held
GOLDMAN SACHS GROUP INC2.27M$63.4M—Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2.15M$60.2M—Held
Deep Track Capital, LP2M$56M—Held
NORGES BANK1.95M$54.4M−$9.66MCut−$8.84M
LOOMIS SAYLES & CO L P1.9M$53.2M—Held
MORGAN STANLEY1.89M$52.8M−$3.13MAdded$6.29M
RTW INVESTMENTS, LP1.67M$46.8M—Held
NORTHERN TRUST CORP1.65M$46.3M—Held
Pictet Asset Management Holding SA1.48M$41.3M—Held
FIRST TRUST ADVISORS LP1.45M$40.7M—Held
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP1.45M$40.6M—Held
Avoro Capital Advisors LLC1.4M$39.2M—Held
Fidelity1.36M$37.9M—Held
Artisan Partners Limited Partnership1.35M$37.7M—Held
BANK OF AMERICA CORP /DE/1.33M$37.3M−$2.21MAdded$4.41M
Soleus Capital Management, L.P.1.32M$37M—Held
TWO SIGMA INVESTMENTS, LP1.21M$34M—Held
Citadel1.2M$33.5M—Held
Squarepoint Ops LLC1.1M$30.7M—Held
Bank of New York Mellon Corp1.07M$30.1M—Held
Affinity Asset Advisors, LLC1M$28M—Held
VIRGINIA RETIREMENT SYSTEMS ET Al976.5K$27.3M—Held
PRINCIPAL FINANCIAL GROUP INC947.6K$26.5M—Held
PANAGORA ASSET MANAGEMENT INC929K$26M—Held
D. E. Shaw & Co., Inc.911.3K$25.5M—Held
Driehaus Capital Management LLC797K$22.3M—Held
Frazier Life Sciences Management, L.P.700.6K$19.6M—Held
Balyasny Asset Management L.P.679.6K$19M—Held
Pacer Advisors, Inc.677.5K$18.9M—Held
PUBLIC SECTOR PENSION INVESTMENT BOARD671.2K$18.8M—Held
SEGALL BRYANT & HAMILL, LLC615.3K$17.2M—Held
BARCLAYS PLC565K$15.8M−$1.12MCut−$889.9K
TWO SIGMA ADVISERS, LP562.6K$15.7M—Held
Woodline Partners LP558.6K$15.6M—Held
Invesco Ltd.538.7K$15.1M—Held
AMERIPRISE FINANCIAL INC531.4K$14.9M—Held
MetLife Investment Management, LLC530.4K$14.8M—Held
Icahn Capital514.3K$14.4M—Held
VOYA INVESTMENT MANAGEMENT LLC501.8K$14M—Held
Opaleye Management Inc.490K$13.7M—Held
RHUMBLINE ADVISERS439.2K$12.3M—Held
BNP PARIBAS FINANCIAL MARKETS430.3K$12M—Held
Legal & General Group Plc429.5K$12M—Held
GLENMEDE TRUST CO NA412.9K$11.6M—Held
VICTORY CAPITAL MANAGEMENT INC402.6K$11.3M—Held
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC394.9K$11M—Held
Fisher Asset Management, LLC390.5K$10.9M—Held
RICE HALL JAMES & ASSOCIATES, LLC379.5K$10.6M—Held
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.361.4K$10.1M—Held
Allianz Asset Management GmbH347.3K$9.72M—Held
Bridgewater344.5K$9.64M—Held
RAYMOND JAMES FINANCIAL INC328.2K$9.14M—Held
ROYAL BANK OF CANADA325.5K$9.11M—Held
California Public Employees Retirement System324.6K$9.08M—Held
Man Group plc312.5K$8.74M—Held
CANADA PENSION PLAN INVESTMENT BOARD310.6K$8.69M—Held
Swiss National Bank309.2K$8.65M—Held
Edgestream Partners, L.P.291.3K$8.15M—Held
Robeco Institutional Asset Management B.V.285.7K$7.99M—Held
Qube Research & Technologies Ltd276.6K$7.74M—Held
VOLORIDGE INVESTMENT MANAGEMENT, LLC273.2K$7.64M—Held
PEREGRINE CAPITAL MANAGEMENT LLC254.3K$7.12M—Held
Palo Alto Investors LP242.6K$6.79M—Held
Atle Fund Management AB242.5K$6.78M—Held
WELLS FARGO & COMPANY/MN233K$6.52M—Held
Abacus FCF Advisors LLC219.5K$6.14M—Held
ALLIANCEBERNSTEIN L.P.215.9K$6.04M—Held
Rafferty Asset Management, LLC203.3K$5.69M—Held
PRUDENTIAL FINANCIAL INC194.5K$5.44M—Held
Universal- Beteiligungs- und Servicegesellschaft mbH194.5K$5.44M—Held
FRANKLIN RESOURCES INC192.8K$5.39M—Held
SEI INVESTMENTS CO190.7K$5.34M—Held
WEDGE CAPITAL MANAGEMENT L L P/NC172.3K$4.82M—Held
MARTINGALE ASSET MANAGEMENT L P170.3K$4.76M—Held
INTECH INVESTMENT MANAGEMENT LLC159.6K$4.47M—Held
Russell Investments Group, Ltd.157.4K$4.39M—Held
NEUBERGER BERMAN GROUP LLC152.8K$4.27M—Held
CAPITAL FUND MANAGEMENT S.A.150.8K$4.22M—Held
NEW YORK STATE COMMON RETIREMENT FUND149.3K$4.18M—Held
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM148.8K$4.16M—Held
JANUS HENDERSON GROUP PLC145.8K$4.08M—Held
Tetragon Partners GP Ltd141.2K$3.95M—Held
Rock Springs Capital Management LP139.2K$3.9M—Held
ALPS ADVISORS INC135.4K$3.79M—Held
DEUTSCHE BANK AG\134.5K$3.76M—Held
Rhenman & Partners Asset Management AB133.3K$3.73M—Held
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM131.7K$3.68M—Held
DAFNA Capital Management LLC130.2K$3.64M—Held
MARSHALL WACE, LLP129.9K$3.63M—Held
Focus Partners Wealth124K$3.47M—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE113.7K$3.18M—Held
Assenagon Asset Management S.A.110.3K$3.09M—Held
HUSSMAN STRATEGIC ADVISORS, INC.105K$2.94M—Held
Sio Capital Management, LLC95.4K$2.67M—Held
LOS ANGELES CAPITAL MANAGEMENT LLC86.4K$2.66M—Held
Knott David M Jr95K$2.66M—Held
MACKENZIE FINANCIAL CORP95.4K$2.65M—Held
STATE OF WISCONSIN INVESTMENT BOARD93.2K$2.61M—Held
Illinois Municipal Retirement Fund91.5K$2.56M—Held
O'SHAUGHNESSY ASSET MANAGEMENT, LLC90.6K$2.53M—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.87.3K$2.44M—Held
ZACKS INVESTMENT MANAGEMENT84.4K$2.36M—Held
TUDOR INVESTMENT CORP ET AL82.7K$2.31M−$113.9KAdded$623K
Vident Advisory, LLC82.3K$2.3M—Held
Eagle Health Investments LP81.8K$2.29M—Held
KLP KAPITALFORVALTNING AS81.1K$2.27M—Held
PROFUND ADVISORS LLC80.6K$2.26M—Held
State of Tennessee, Department of Treasury66.4K$2.25M—Held
Y-Intercept (Hong Kong) Ltd79.3K$2.22M—Held
Pathstone Holdings, LLC78.2K$2.19M—Held
Louisiana State Employees Retirement System75.6K$2.12M—Held
CITIGROUP INC73.4K$2.05M—Held
Campbell & CO Investment Adviser LLC73.1K$2.05M—Held
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC72.9K$2.04M—Held
Atom Investors LP65.7K$1.84M—Held
RITHOLTZ WEALTH MANAGEMENT64.1K$1.79M—Held
Entropy Technologies, LP63.7K$1.78M—Held
ADAR1 Capital Management, LLC63.7K$1.78M—Held
Gotham Asset Management, LLC62.5K$1.75M—Held
Empowered Funds, LLC61.2K$1.71M—Held
Creative Planning60.8K$1.7M—Held
JANE STREET GROUP, LLC60.8K$1.7M—Held
GLOBEFLEX CAPITAL L P60.6K$1.69M—Held
Federation des caisses Desjardins du Quebec60K$1.68M—Held
Oliver Luxxe Assets LLC56K$1.57M—Held
SCHRODER INVESTMENT MANAGEMENT GROUP55.5K$1.54M—Held
MILLENNIUM MANAGEMENT LLC54.6K$1.53M—Held
State of New Jersey Common Pension Fund D53.5K$1.5M—Held
YOUSIF CAPITAL MANAGEMENT, LLC46K$1.46M—Held
EXCHANGE TRADED CONCEPTS, LLC50.1K$1.4M—Held
Birchview Capital, LP50K$1.4M—Held
DIVERSIFIED TRUST CO49.1K$1.37M—Held
Zurcher Kantonalbank (Zurich Cantonalbank)49K$1.37M—Held
ROYCE & ASSOCIATES LP48K$1.34M—Held
Engineers Gate Manager LP47.7K$1.34M—Held
VIRTUS ADVISERS, LLC47.7K$1.33M−$96.4KCut−$96.4K
TD Asset Management Inc46.2K$1.29M—Held
STRS OHIO46.1K$1.29M—Held
Marex Group plc44.9K$1.25M—New
LPL Financial LLC44.2K$1.24M—Held
Police & Firemen's Retirement System of New Jersey44.1K$1.24M—Held
ARIZONA STATE RETIREMENT SYSTEM43.6K$1.22M—Held
HSBC HOLDINGS PLC42.8K$1.2M—Held
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS40.9K$1.14M—Held
ENVESTNET ASSET MANAGEMENT INC40.3K$1.13M—Held
Dana Investment Advisors, Inc.39.5K$1.1M—Held
Vinva Investment Management Ltd26.5K$1.1M—Held
Tidal Investments LLC39.1K$1.09M—Held
ProShare Advisors LLC38.9K$1.09M—Held
OREGON PUBLIC EMPLOYEES RETIREMENT FUND37.8K$1.06M—Held
GC Wealth Management RIA, LLC37.4K$1.05M—Held
CAPTRUST FINANCIAL ADVISORS36.8K$1.03M—Held
Hudson Portfolio Management LLC33.5K$937.5K—Held
Jump Financial, LLC32.6K$913K—Held
Amundi32.4K$906.1K—Held
Cerity Partners LLC32.3K$904.6K—Held
BRIDGEWAY CAPITAL MANAGEMENT, LLC31.2K$873K—Held
DNB Asset Management AS30.8K$860.7K—Held
AdvisorShares Investments LLC30.6K$855.6K—Held
Aquatic Capital Management LLC28.4K$794.9K—Held
MIRABELLA FINANCIAL SERVICES LLP27.5K$768.4K—New
DARK FOREST CAPITAL MANAGEMENT LP27.2K$761.1K—Held
NLB Skladi, upravljanje premozenja, d.o.o.27K$755.5K—Held
China Universal Asset Management Co., Ltd.26.9K$752.8K—Held
OXFORD ASSET MANAGEMENT LLP26.8K$748.9K—New
FEDERATED HERMES, INC.26.5K$742.8K—Held
HighVista Strategies LLC26.4K$738.7K—Held
Vontobel Holding Ltd.26K$728.8K—Held
CHOREO, LLC25.4K$706.5K—Held
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management24.8K$694.3K—Held
Lighthouse Investment Partners, LLC24.8K$692.8K—Held
Maryland State Retirement & Pension System24.2K$676K—Held
TEACHER RETIREMENT SYSTEM OF TEXAS23.3K$651.5K—Held
Ensign Peak Advisors, Inc22.8K$638.7K—Held
Allspring Global Investments Holdings, LLC22.1K$623.6K—Held
HORIZON KINETICS ASSET MANAGEMENT LLC22.1K$617.4K—Held
Corient Private Wealth LLC21.9K$611.8K—Held
Walleye Capital LLC21.6K$604.3K—Held
FARALLON CAPITAL MANAGEMENT LLC20.8K$582K−$42KCut−$42K
Wilmington Savings Fund Society, FSB20.8K$581.5K—Held
Moran Wealth Management, LLC20.7K$577.8K—Held
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main20.4K$569.9K−$203Cut−$15.3M
EVOLVE PRIVATE WEALTH, LLC19.7K$552.6K—Held
Graham Capital Management, L.P.19.6K$549.7K—Held
AXS Investments LLC19.5K$545.6K−$39.4KCut−$58.9K
Quantinno Capital Management LP19.4K$543.9K—Held
PSP Research LLC19.3K$539.5K—Held
Cetera Investment Advisers18.9K$529.4K—Held
INCEPTIONR LLC18.9K$529.2K—Held
Round Rock Advisors LLC17.7K$494K—Held
State of Wyoming17.3K$485.1K—Held
AVIVA PLC16.9K$474.1K—Held
TODD ASSET MANAGEMENT LLC16.8K$471.3K—Held
XPONANCE LLC15.8K$443K—Held
Financiere des Professionnels - Fonds d'investissement inc.15.6K$436.7K—Held
OMERS ADMINISTRATION Corp14.9K$417.4K—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP14.9K$416.1K—Held
Bleakley Financial Group, LLC14.7K$412.2K—Held
BANK OF MONTREAL /CAN/14.4K$401.8K—Held
Vanguard Personalized Indexing Management, LLC14.1K$395K—Held
Swiss Life Asset Management Ltd13.8K$387.1K−$14.9KAdded$165.9K
Magnetar Financial LLC13.7K$383.4K—Held
HighTower Advisors, LLC13.5K$377.6K—Held
Sumitomo Mitsui Trust Group, Inc.13.4K$374.1K—Held
Ameritas Investment Partners, Inc.13.2K$368.5K—Held
QUADRANT CAPITAL GROUP LLC12.9K$361.8K—Held
Crossmark Global Holdings, Inc.12.7K$355K—Held
XTX Topco Ltd12.3K$344.8K—Held
Sanctuary Advisors, LLC12.1K$339.7K−$23.9KCut−$15.1K
Advisors Asset Management, Inc.12.1K$339.7K—Held
Walleye Trading LLC11.5K$323.1K—Held
CIBC WORLD MARKETS CORP10.7K$300.3K—Held
PNC Financial Services Group, Inc.10.3K$288.9K—Held
JAMES INVESTMENT RESEARCH, INC.10.3K$287.4K—Held
EVERGREEN CAPITAL MANAGEMENT LLC10.2K$284.8K—Held
GROUP ONE TRADING LLC9.43K$263.7K—Held
MERCER GLOBAL ADVISORS INC /ADV9.14K$255.7K—Held
HOHIMER WEALTH MANAGEMENT, LLC9.05K$253.2K—Held
PRICE T ROWE ASSOCIATES INC /MD/9M$251.8K—Held
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC8.69K$250.2K—Held
Sequoia Financial Advisors, LLC8.85K$247.6K—Held
Caprock Group, LLC8.52K$238.3K—Held
CREDIT AGRICOLE S A8.5K$237.8K—Held
Bayforest Capital Ltd8.19K$229.1K—Held
Sterling Capital Management LLC8.15K$228K—Held
Mirae Asset Global Investments Co., Ltd.8.02K$224.5K—Held
New Age Alpha Advisors, LLC8.02K$224.3K—Held
Quantbot Technologies LP7.91K$221.3K—Held
NISA INVESTMENT ADVISORS, LLC7.86K$220K—Held
AUXIER ASSET MANAGEMENT LLC7.65K$214.1K—Held
Bridgefront Capital, LLC7.38K$206.5K—Held
Avanza Fonder AB7.33K$205K—Held
MQS Management LLC7.25K$202.9K—Held
NATIONAL BANK OF CANADA /FI/7.17K$200.5K—Held
Bellevue Group AG6.59K$184.5K—Held
Smartleaf Asset Management LLC6.4K$178K—Held

Who left

Positions as of Q4 2025. 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.