13F

Stock

Alkermes plc.

ALKS · held by 388 managers

Reported value

$5.92B

Holders

388

+64 new · −48 exited

Holders’ est. mark

$953.9M

Price effect on 205 books still in the name

Largest holder

$1B

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$1B$208.7MAdded$210.1M
BAKER BROS. ADVISORS LP10M$354M$73.9MAdded$73.9M
VANGUARD PORTFOLIO MANAGEMENT LLC9.51M$336.3MHeld
State Street9.47M$334.7M$69.9MAdded$69.6M
VANGUARD CAPITAL MANAGEMENT LLC7.43M$262.6MHeld
Renaissance Technologies6.16M$217.8M$45.5MAdded$31.3M
AMERICAN CENTURY COMPANIES INC6.07M$214.7M$44MAdded$48M
DIMENSIONAL FUND ADVISORS LP4.52M$159.9M$32.5MAdded$36.4M
Commodore Capital LP4.2M$148.5M$26.2MAdded$49.2M
GEODE CAPITAL MANAGEMENT, LLC4.18M$147.9M$30.1MAdded$33.7M
Deep Track Capital, LP3.59M$127M$14.8MAdded$71M
JPMORGAN CHASE & CO4.1M$123.7M$8.9MCut−$21.4M
WELLINGTON MANAGEMENT GROUP LLP2.97M$105M$21.9MAdded$20.5M
FIRST TRUST ADVISORS LP2.97M$105M$10.7MAdded$64.3M
PRIMECAP MANAGEMENT CO/CA/2.54M$89.8M$18.7MAdded$18.1M
Nuveen, LLC2.46M$87M$17.9MAdded$19.1M
Holocene Advisors, LP2.32M$81.9MNew
Citadel2.24M$79.3M$8.84MAdded$45.7M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2.24M$79.1M$15.9MAdded$18.9M
BVF INC/IL2M$70.7MNew
Soleus Capital Management, L.P.1.97M$69.7M$9.76MAdded$32.7M
GOLDMAN SACHS GROUP INC1.88M$66.6M$13.9MAdded$3.11M
LOOMIS SAYLES & CO L P1.78M$63.1M$13.2MAdded$9.87M
MORGAN STANLEY1.74M$61.4M$12.8MAdded$8.55M
NORTHERN TRUST CORP1.7M$60M$12.2MAdded$13.7M
RTW INVESTMENTS, LP1.67M$59.1M$12.3MAdded$12.3M
Affinity Asset Advisors, LLC1.35M$47.7M$7.38MAdded$19.8M
Fidelity1.32M$46.8M$9.77MAdded$8.89M
BANK OF AMERICA CORP /DE/1.21M$42.8M$8.94MAdded$5.52M
Avoro Capital Advisors LLC1.2M$42.4M$8.86MAdded$3.26M
VANGUARD FIDUCIARY TRUST CO1.13M$39.9MHeld
Artisan Partners Limited Partnership1.11M$39.3M$8.2MAdded$1.56M
Bank of New York Mellon Corp1.04M$36.6M$7.65MAdded$6.6M
MARSHALL WACE, LLP999.3K$35.3M$958.7KAdded$31.7M
PRINCIPAL FINANCIAL GROUP INC958K$33.9M$6.99MAdded$7.36M
PANAGORA ASSET MANAGEMENT INC932.9K$33M$6.86MAdded$7M
Pictet Asset Management Holding SA942.2K$30.2M$3.8MCut−$11.2M
Driehaus Capital Management LLC792K$28M$5.84MAdded$5.7M
TWO SIGMA INVESTMENTS, LP780.7K$27.6M$5.76MCut−$6.35M
AMERIPRISE FINANCIAL INC741.1K$26.2M$3.92MAdded$11.3M
D. E. Shaw & Co., Inc.710.3K$25.1M$5.24MCut−$381.3K
Frazier Life Sciences Management, L.P.700.6K$24.8M$5.17MAdded$5.17M
PUBLIC SECTOR PENSION INVESTMENT BOARD677.4K$24M$4.95MAdded$5.17M
Man Group plc625K$22.1M$2.31MAdded$13.4M
Bain Capital Life Sciences Investors, LLC610K$21.6MNew
Balyasny Asset Management L.P.586.8K$20.7M$4.33MAdded$1.73M
SEGALL BRYANT & HAMILL, LLC585.8K$20.7M$4.32MAdded$3.5M
Woodline Partners LP558.6K$19.8M$4.12MAdded$4.12M
BNP PARIBAS FINANCIAL MARKETS528K$18.7M$3.18MAdded$6.63M
Invesco Ltd.524.3K$18.5M$3.87MAdded$3.47M
Prosight Management, LP513.6K$18.2MNew
UBS Group AG495K$17.5M$3.65MCut−$53.7M
SILVERARC CAPITAL MANAGEMENT, LLC460.3K$16.3MNew
RHUMBLINE ADVISERS449.5K$15.9M$3.24MAdded$3.61M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC403.2K$14.3M$2.91MAdded$3.21M
Fisher Asset Management, LLC390.5K$13.8M$2.88MAdded$2.88M
RICE HALL JAMES & ASSOCIATES, LLC390.3K$13.8M$2.8MAdded$3.19M
Icahn Capital384K$13.6M$2.83MCut−$813.4K
Legal & General Group Plc380.7K$13.5M$2.81MAdded$1.45M
GLENMEDE TRUST CO NA378.1K$13.4M$2.79MAdded$1.82M
GENDELL JEFFREY L351.5K$12.4MNew
Logos Global Management LP350K$12.4MNew
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.340K$12M$2.51MAdded$1.91M
California Public Employees Retirement System328.2K$11.6M$2.4MAdded$2.52M
Spruce Street Capital LP318K$11.2MNew
Swiss National Bank310.3K$11M$2.28MAdded$2.32M
VICTORY CAPITAL MANAGEMENT INC308.9K$10.9M$2.28MCut−$340.4K
ROYAL BANK OF CANADA304.3K$10.8M$2.25MAdded$1.65M
RAYMOND JAMES FINANCIAL INC317.4K$9.98M$1.14MAdded$842.6K
Squarepoint Ops LLC277.6K$9.82M$2.05MCut−$20.8M
MACKENZIE FINANCIAL CORP249.2K$8.81M$725.8KAdded$6.16M
PEREGRINE CAPITAL MANAGEMENT LLC244K$8.63M$1.8MAdded$1.51M
CAPITAL FUND MANAGEMENT S.A.243K$8.59M$1.11MAdded$4.38M
Palo Alto Investors LP242.6K$8.58M$1.79MAdded$1.79M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.239.7K$8.47M$8.47MAdded$8.47M
Eagle Health Investments LP238.7K$8.44M$603.7KAdded$6.15M
Senator Investment Group LP235K$8.32MNew
Atle Fund Management AB242.5K$8.24M$1.45MAdded$1.45M
Robeco Institutional Asset Management B.V.220.5K$7.8M$1.63MCut−$195.4K
Engineers Gate Manager LP208.5K$7.37M$352.3KAdded$6.04M
ALLIANCEBERNSTEIN L.P.260.9K$7.3M−$0Added$1.26M
ExodusPoint Capital Management, LP204.3K$7.22MNew
NEUBERGER BERMAN GROUP LLC197.2K$6.97M$1.13MAdded$2.7M
MARTINGALE ASSET MANAGEMENT L P194.8K$6.89M$1.26MAdded$2.12M
Rock Springs Capital Management LP184K$6.51M$1.03MAdded$2.61M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM183.8K$6.5M$1.1MAdded$2.34M
FRANKLIN RESOURCES INC182.5K$6.45M$1.35MAdded$1.06M
Universal- Beteiligungs- und Servicegesellschaft mbH178.5K$6.31M$1.32MAdded$868.3K
BARCLAYS PLC175K$6.19M$1.29MCut−$9.62M
Hudson Bay Capital Management LP173.6K$6.14MNew
Rafferty Asset Management, LLC162.4K$5.74M$1.2MAdded$56K
Tetragon Partners GP Ltd159.8K$5.65M$1.04MAdded$1.7M
MOORE CAPITAL MANAGEMENT, LP158.5K$5.6MNew
SummitTX Capital, L.P.156.3K$5.53MNew
JANUS HENDERSON GROUP PLC154K$5.45M$1.08MAdded$1.37M
SEI INVESTMENTS CO153.8K$5.44M$1.14MAdded$102.7K
WEDGE CAPITAL MANAGEMENT L L P/NC151.2K$5.35M$1.12MAdded$528.1K
DEUTSCHE BANK AG\149.7K$5.29M$992.3KAdded$1.53M
DAFNA Capital Management LLC139.5K$4.93M$961.2KAdded$1.29M
STATE OF WISCONSIN INVESTMENT BOARD139.3K$4.93M$688.1KAdded$2.32M
NEW YORK STATE COMMON RETIREMENT FUND137.6K$4.87M$1.02MAdded$689.2K
VANGUARD ASSET MANAGEMENT, Ltd136.4K$4.82MHeld
ALPS ADVISORS INC135.7K$4.8M$999.1KAdded$1.01M
Rhenman & Partners Asset Management AB133.3K$4.71M$983.4KAdded$983.4K
PRUDENTIAL FINANCIAL INC131.9K$4.66M$973.2KCut−$779.3K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM129.4K$4.58M$955.2KAdded$892K
Assenagon Asset Management S.A.122.1K$4.32M$813.9KAdded$1.23M
Knott David M Jr120K$4.24M$701.1KAdded$1.59M
WELLS FARGO & COMPANY/MN117.9K$4.17M$870.3KCut−$2.35M
Russell Investments Group, Ltd.98.7K$3.47M$719KCut−$918K
VOYA INVESTMENT MANAGEMENT LLC93.1K$3.29M$687.3KCut−$10.7M
Illinois Municipal Retirement Fund91K$3.22M$671.5KAdded$657.8K
MetLife Investment Management, LLC88.9K$3.14M$655.7KCut−$11.7M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.87.6K$3.04M$586.3KAdded$598.7K
Exome Asset Management LLC84.1K$2.97MNew
Vident Advisory, LLC84.1K$2.97M$607.3KAdded$670.8K
Bridgewater83.8K$2.96M$618.5KCut−$6.67M
KLP KAPITALFORVALTNING AS82.1K$2.9M$598.5KAdded$633.9K
Pathstone Holdings, LLC82K$2.9M$577KAdded$711.6K
Vanguard Global Advisers, LLC81.6K$2.89MHeld
STEMPOINT CAPITAL LP80.5K$2.85MNew
Allianz Asset Management GmbH80.4K$2.84M$593.1KCut−$6.88M
PROFUND ADVISORS LLC77.8K$2.75M$573.9KAdded$494.1K
Focus Partners Wealth77.1K$2.72M$568.6KCut−$746.1K
Creative Planning75K$2.65M$448.6KAdded$952.2K
Louisiana State Employees Retirement System73.2K$2.59M$540.2KAdded$473.1K
HighVista Strategies LLC73.2K$2.59M$194.8KAdded$1.85M
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC72.7K$2.57M$536.3KAdded$530.7K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC71.8K$2.54M$529.7KAdded$3.81K
MANUFACTURERS LIFE INSURANCE COMPANY, THE71.4K$2.53M$531.4KCut−$650.1K
State of Tennessee, Department of Treasury66.9K$2.37M$97.6KAdded$116.1K
Zurcher Kantonalbank (Zurich Cantonalbank)66.8K$2.36M$361.4KAdded$992.2K
Federation des caisses Desjardins du Quebec66.1K$2.34M$442.8KAdded$659.9K
Amundi64.7K$2.29M$239KAdded$1.38M
INTECH INVESTMENT MANAGEMENT LLC61K$2.16M$449.9KCut−$2.31M
SCHRODER INVESTMENT MANAGEMENT GROUP67.5K$2.03M$129.9KAdded$489.8K
SUSQUEHANNA INTERNATIONAL GROUP, LLP56.8K$2.01M$109.8KAdded$1.59M
ROYCE & ASSOCIATES LP55.7K$1.97M$354.3KAdded$625.6K
DIVERSIFIED TRUST CO54.9K$1.94M$362KAdded$569.1K
State of New Jersey Common Pension Fund D53.6K$1.9M$395KAdded$397.9K
Edgestream Partners, L.P.52.8K$1.87M$389.9KCut−$6.28M
Lumbard & Kellner, LLC52.6K$1.86MNew
ZACKS INVESTMENT MANAGEMENT50.1K$1.77M$369.4KCut−$590.4K
Birchview Capital, LP50K$1.77M$369KAdded$369K
GREAT POINT PARTNERS LLC50K$1.77MNew
DIADEMA PARTNERS LP50K$1.77MNew
HSBC HOLDINGS PLC48.3K$1.73M$330.9KAdded$528.5K
CANADA PENSION PLAN INVESTMENT BOARD48.5K$1.71M$357.9KCut−$6.98M
VIRTUS ADVISERS, LLC47.5K$1.68M$350.3KAdded$343.6K
CITIGROUP INC47.5K$1.68M$350.2KCut−$375.2K
STRS OHIO46.9K$1.66M$340.2KAdded$368.5K
ADAR1 Capital Management, LLC46.4K$1.64M$342.4KCut−$141.6K
RITHOLTZ WEALTH MANAGEMENT45.8K$1.62M$338.3KCut−$172.7K
YOUSIF CAPITAL MANAGEMENT, LLC45.7K$1.61M$164.8KAdded$153.5K
Quantinno Capital Management LP44.9K$1.59M$143.5KAdded$1.04M
Police & Firemen's Retirement System of New Jersey44.1K$1.56M$325.8KAdded$325.8K
ARIZONA STATE RETIREMENT SYSTEM43.1K$1.52M$318KAdded$302.9K
ENVESTNET ASSET MANAGEMENT INC42.4K$1.5M$297.7KAdded$371.3K
Gotham Asset Management, LLC41.5K$1.47M$306.6KCut−$278.7K
Jump Financial, LLC41.4K$1.47M$240.8KAdded$552.6K
Tidal Investments LLC41.3K$1.46M$288.2KAdded$369.1K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS40.8K$1.44M$301.3KAdded$300.1K
Dana Investment Advisors, Inc.40.4K$1.43M$291.2KAdded$323.4K
LPL Financial LLC39.4K$1.39M$291.1KAdded$157K
CenterBook Partners LP38.6K$1.37MNew
Vanguard Investments Australia, Ltd.38.1K$1.35MHeld
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main38K$1.34M$150.3KAdded$772.5K
OREGON PUBLIC EMPLOYEES RETIREMENT FUND37.8K$1.34M$278.8KAdded$278.8K
ProShare Advisors LLC32.7K$1.16M$241.5KAdded$69.6K
Hudson Portfolio Management LLC32.2K$1.14M$237.9KAdded$202.4K
Vontobel Holding Ltd.32.1K$1.14M$192.2KAdded$406.3K
Militia Capital Management LLC31.9K$1.13MHeld
Cerity Partners LLC31.8K$1.13M$235KAdded$221.1K
Perbak Capital Partners LLP31.2K$1.1MNew
DNB Asset Management AS30.5K$1.08M$225.3KAdded$218.6K
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management29.8K$1.05M$183.1KAdded$359.6K
China Universal Asset Management Co., Ltd.29.6K$1.05M$198.6KAdded$292.9K
FEDERATED HERMES, INC.29.5K$1.04M$195.9KAdded$298.9K
ALLSTATE CORP29.2K$1.03MNew
GUGGENHEIM CAPITAL LLC28.6K$1.01MNew
Pacer Advisors, Inc.15K$1.01M$586.8KCut−$17.9M
AdvisorShares Investments LLC26.4K$932.4K$194.6KAdded$76.8K
Persistent Asset Partners Ltd25.6K$903.9KNew
CHOREO, LLC25.3K$893.2K$190.7KAdded$186.7K
Allspring Global Investments Holdings, LLC24.6K$862.6K$149.8KAdded$238.9K
Seven Fleet Capital Management LP24.2K$854.7KNew
Maryland State Retirement & Pension System24.2K$854.3K$178.3KAdded$178.3K
Entropy Technologies, LP22.9K$809.2K$168.9KCut−$973.8K
Caitong International Asset Management Co., Ltd21.3K$752.8KNew
HORIZON KINETICS ASSET MANAGEMENT LLC21.1K$746.1K$155.7KAdded$128.7K
E Fund Management Co., Ltd.20.9K$739.7KHeld
FARALLON CAPITAL MANAGEMENT LLC20.8K$735.5K$153.5KAdded$153.5K
Wilmington Savings Fund Society, FSB20.8K$734.9K$153.4KAdded$153.4K
EVOLVE PRIVATE WEALTH, LLC20.4K$721.4K$145.7KAdded$168.8K
TEACHER RETIREMENT SYSTEM OF TEXAS20.3K$716.5K$149.5KAdded$65K
DRW Securities, LLC20.2K$713.6KNew
Marex Group plc19.9K$703.3K$146.8KCut−$551.6K
AXS Investments LLC18.9K$666.5K$139.1KAdded$120.9K
Round Rock Advisors LLC17.9K$634.4K$130.3KAdded$140.4K
GC Wealth Management RIA, LLC17K$600.4K$125.3KCut−$446.5K
PRELUDE CAPITAL MANAGEMENT, LLC16.9K$598.6KNew
TODD ASSET MANAGEMENT LLC16.8K$594.7K$124.1KAdded$123.4K
Schonfeld Strategic Advisors LLC16.6K$586.4KNew
OMERS ADMINISTRATION Corp16.5K$584K$110.1KAdded$166.7K
Vanguard Personalized Indexing Management, LLC16.4K$580.4K$104.2KAdded$185.3K
Tower Research Capital LLC (TRC)16.1K$570K$19.1KAdded$497.7K
CAPTRUST FINANCIAL ADVISORS15.8K$558.2K$116.4KCut−$470.5K
XPONANCE LLC15.4K$543.5K$113.4KAdded$100.5K
AVIVA PLC15.4K$542.9K$113.3KAdded$68.8K
Cetera Investment Advisers14.8K$521.8K$108.9KCut−$7.59K
BANK OF MONTREAL /CAN/14.8K$521.8K$106KAdded$120K
State of Wyoming14.7K$518.9K$108.3KAdded$33.8K
Sumitomo Mitsui Trust Group, Inc.13.9K$491.5K$98.7KAdded$117.4K
Daiwa Securities Group Inc.13.4K$473.8K$415.5KAdded$473.5K
Ameritas Investment Partners, Inc.13.2K$465.7K$97.2KAdded$97.2K
SIMPLEX TRADING, LLC13.1K$464.6KNew
Crossmark Global Holdings, Inc.12.7K$448.6K$93.6KAdded$93.6K
QUADRANT CAPITAL GROUP LLC12.7K$447.5K$93.4KAdded$85.7K
Corient Private Wealth LLC11.5K$408.3K$86.2KCut−$203.5K
PNC Financial Services Group, Inc.11.3K$400.2K$76.2KAdded$111.3K
CWM, LLC11.2K$396.9K$396.6KAdded$396.6K
Advisors Asset Management, Inc.10.5K$369.7K$77.2KAdded$30K
JAMES INVESTMENT RESEARCH, INC.10.3K$363.7K$75.8KAdded$76.3K
Lombard Odier Asset Management (USA) Corp10.2K$361.8KNew
Bleakley Financial Group, LLC10.1K$355.9K$74.3KCut−$56.3K
Sanctuary Advisors, LLC9.82K$347.4K$72.5KAdded$7.71K
Ashton Thomas Private Wealth, LLC9.44K$333.8KNew
Ensign Peak Advisors, Inc9.32K$329.4K$68.8KCut−$309.3K
Sequoia Financial Advisors, LLC9.27K$327.9K$65.3KAdded$80.2K
MERCER GLOBAL ADVISORS INC /ADV8.93K$315.9K$65.9KAdded$60.2K
Bellevue Group AG8.87K$313.6K$48.7KAdded$129.1K
HOHIMER WEALTH MANAGEMENT, LLC8.69K$307.4K$64.2KAdded$54.2K
Mirae Asset Global Investments Co., Ltd.8.69K$307.3K$59.2KAdded$82.8K
INVESTORS ASSET MANAGEMENT OF GEORGIA INC /GA/ /ADV8.6K$303.5KNew
HighTower Advisors, LLC8.58K$303.3K$63.3KCut−$74.3K
CREDIT AGRICOLE S A8.5K$300.6K$62.7KAdded$62.7K
JONES FINANCIAL COMPANIES LLLP10.2K$300.5K$601Added$288.6K
GTS SECURITIES LLC8.48K$300KNew
CIBC Bancorp USA Inc.8.24K$291.5KHeld
EVERGREEN CAPITAL MANAGEMENT LLC8.22K$290.7K$60.7KAdded$5.91K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC7.99K$278.2K$48.4KAdded$28K
Empowered Funds, LLC7.82K$276.4K$57.7KCut−$1.44M
New Age Alpha Advisors, LLC7.82K$276.3K$57.7KAdded$52K
Caprock Group, LLC7.71K$272.8K$56.9KAdded$34.5K
Gallacher Capital Management LLC7.68K$271.5KNew
AUXIER ASSET MANAGEMENT LLC7.65K$270.6K$56.5KAdded$56.5K
NATIONAL BANK OF CANADA /FI/7.4K$261.7K$53KAdded$61.2K
Bridgefront Capital, LLC7.29K$257.8K$53.8KAdded$51.3K
Moors & Cabot, Inc.7.12K$251.7KNew
Orion Porfolio Solutions, LLC7.1K$251.2KNew

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.