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Alkermes plc.

ALKS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001520262

In the last 90 days, Alkermes plc. insiders filed 0 open-market purchases and 7 sales; 425 institutions reported holding it in 13F filings for Q2 2026, worth $9.32B in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Alkermes plc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of ALKS: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders3584366+12
Shares169.6M710.0K180.4M+11.5M (+6.8%)
Value$5.09B$21.3M$5.05B−$19.2M (−0.4%)

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (59)

Institutions that held Alkermes plc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to ALKS in Q4 2025
InstitutionSharesValue% of portfolio
Deep Track Capital, LP2,000,000$56.0M1.28%
Norges Bank1,945,734$54.4M0.01%
Soleus Capital Management, L.P.1,322,364$37.0M1.57%
Balyasny Asset Management LLC679,633$19.0M0.04%
Glenmede Trust Co NA412,920$11.6M0.05%
Nomura Asset Management International Inc.361,387$10.1M0.02%
Bridgewater Associates, LP344,452$9.64M0.04%
Qube Research & Technologies Ltd276,558$7.74M0.01%
TrimTabs Asset Management, LLC219,495$6.14M0.80%
Marshall Wace, LLP129,899$3.63M0.00%
Colony Group, LLC124,041$3.47M0.00%
Zacks Investment Management84,361$2.36M0.02%
Atom Investors LP65,706$1.84M0.15%
Empowered Funds, LLC61,198$1.71M0.03%
Federation des caisses Desjardins du Quebec60,006$1.68M0.01%
Jump Financial, LLC32,629$913.0K0.01%
Bridgeway Capital Management, LLC31,200$873.0K0.02%
Aquatic Capital Management LLC28,411$794.9K0.02%
Mirabella Financial Services LLP27,462$768.4K0.07%
Dark Forest Capital Management LP27,203$761.1K0.03%
NLB Skladi, upravljanje premozenja, d.o.o.27,000$755.5K0.03%
Oxford Asset Management LLP26,767$748.9K0.26%
Lighthouse Investment Partners, LLC24,759$692.8K0.02%
Unique Wealth Strategies, LLC20,534$574.5K0.23%
Evolve Private Wealth, LLC19,749$552.6K0.03%
Graham Capital Management, L.P.19,646$549.7K0.02%
PSP Research LLC19,280$539.5K0.47%
Inceptionr LLC18,913$529.2K0.15%
Magnetar Financial LLC13,701$383.4K0.00%
Sumitomo Mitsui Trust Holdings, Inc.13,370$374.1K0.00%
Walleye Trading LLC11,549$323.1K0.01%
CIBC World Markets Corp10,734$300.3K0.00%
Mercer Global Advisors Inc9,138$255.7K0.00%
Wealth Enhancement Advisory Services, LLC8,694$250.2K0.00%
Bayforest Capital Ltd8,187$229.1K0.17%
Quantbot Technologies LP7,910$221.3K0.01%
Bridgefront Capital, LLC7,381$206.5K0.05%
MQS Management LLC7,252$202.9K0.12%
St Germain D J Co Inc6,180$172.9K0.01%
C M Bidwell & Associates Ltd2,630$73.6K0.03%
Leonteq Securities AG2,515$70.4K0.00%
T. Rowe Price Investment Management, Inc.2,099$59.0K0.00%
Pinnacle Wealth Planning Services, Inc.1,696$47.5K0.00%
Cullen/Frost Bankers, Inc.1,015$28.4K0.00%
Golden State Wealth Management, LLC650$18.2K0.00%
Kemnay Advisory Services Inc.472$13.2K0.00%
Three Bearings Fiduciary Advisors, Inc.75$2.54K0.00%
Keating Financial Advisory Services, Inc.53$1.48K0.00%
Torren Management, LLC44$1.23K0.00%
Godfrey Financial Associates, Inc.41$1.15K0.00%
Ankerstar Wealth, LLC26$7270.00%
Ares Financial Consulting, LLC26$7270.00%
Rakuten Securities, Inc.25$7000.00%
Manchester Capital Management LLC20$5600.00%
Signature Equity Partners, LLC19$5320.00%
Gilpin Wealth Management, LLC12$3360.00%
Flagship Harbor Advisors, LLC10$2800.00%
Harbour Investments, Inc.5$1400.00%
Dunhill Financial, LLC4$1020.00%

Sold out (47)

Institutions that held Alkermes plc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of ALKS in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Holocene Advisors, LP2,469,030$74.1M
Paradigm Biocapital Advisors LP1,719,334$51.6M
MPM Oncology Impact Management LP549,262$16.5M
EcoR1 Capital, LLC500,000$15.0M
Macquarie Group Ltd372,890$11.2M
ExodusPoint Capital Management, LP249,727$7.49M
StemPoint Capital LP241,637$7.25M
Silverarc Capital Management, LLC180,513$5.42M
Standard Life Aberdeen plc146,224$4.39M
Van Eck Associates Corp119,502$3.58M
Diadema Partners LP72,079$2.16M
AMG National Trust Bank60,175$1.81M
Moody Aldrich Partners LLC55,615$1.67M
Neo Ivy Capital Management29,756$892.7K
CenterBook Partners LP27,928$837.8K
Connor, Clark & Lunn Investment Management Ltd.26,817$804.5K
Lazard Asset Management LLC25,723$771.7K
PDT Partners, LLC24,198$725.9K
Jennison Associates LLC19,570$587.1K
Resona Asset Management Co.,Ltd.18,906$567.2K
Persistent Asset Partners Ltd16,541$496.2K
Simplex Trading, LLC14,667$440.0K
Advantage Alpha Capital Partners LP14,122$423.7K
Vise Technologies, Inc.10,809$324.3K
DRW Securities, LLC10,483$314.9K
Ieq Capital, LLC10,134$304.0K
CIBC Asset Management Inc9,047$271.4K
Brinker Capital Investments, LLC8,762$262.9K
Bayesian Capital Management, LP8,074$242.2K
Verition Fund Management LLC7,480$224.4K
Moors & Cabot, Inc.6,777$203.3K
GW Henssler & Associates Ltd6,680$200.4K
Johnson Financial Group, Inc.1,026$30.8K
Storebrand Asset Management AS919$27.6K
Advisory Services Network, LLC658$19.7K
Ci Investments Inc.517$16.0K
Wealthspire Advisors, LLC527$15.8K
Rise Advisors, LLC345$10.3K
Vermillion & White Wealth Management Group, LLC151$4.53K
Northwestern Mutual Wealth Management Co116$3.48K
Principal Securities, Inc.112$3.36K
Atlantic Trust, LLC69$2.07K
Bear Mountain Capital, Inc.14$440
Montag A & Associates Inc11$330
Transamerica Financial Advisors, Inc.8$240
Caitong International Asset Management Co., Ltd5$150
Cloud Capital Management, LLC26$0

Not filed for Q4 2025 yet (4)

Institutions that held Alkermes plc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ALKS in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Glenmede Investment Management, LP455,641$13.7M
AXA Investment Managers S.A.236,897$7.11M
CIBC Bancorp USA Inc.17,296$518.9K
Hemington Wealth Management145$4.00K