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 8 sales; 425 institutions reported holding it in 13F filings for Q2 2026, worth $9.32B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Alkermes plc. as of Jun 30, 2026. 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
- 425
- +39 vs. Q1 2026
- Shares held
- 177.9M
- +1.49M (+0.8%) vs. Q1 2026
- Total value
- $9.32B
- +$3.11B (+50.1%) vs. Q1 2026
- New holders
- 90
- 141 more added
- Sold out
- 51
- 137 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALKS 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 425 | $9.32B |
| Q1 2026 | 390 | $6.22B |
| Q4 2025 | 366 | $5.05B |
| Q3 2025 | 358 | $5.09B |
| Q2 2025 | 353 | $4.84B |
| Q1 2025 | 371 | $5.69B |
| Q4 2024 | 343 | $4.81B |
| Q3 2024 | 338 | $5.01B |
| Q2 2024 | 323 | $4.32B |
| Q1 2024 | 337 | $4.77B |
| Q4 2023 | 302 | $4.87B |
| Q3 2023 | 309 | $4.59B |
| Q2 2023 | 293 | $5.03B |
| Q1 2023 | 269 | $4.56B |
| Q4 2022 | 279 | $4.24B |
| Q3 2022 | 275 | $3.57B |
| Q2 2022 | 276 | $4.67B |
| Q1 2022 | 249 | $4.21B |
| Q4 2021 | 219 | $3.68B |
| Q3 2021 | 227 | $4.77B |
| Q2 2021 | 226 | $3.95B |
| Q1 2021 | 200 | $2.95B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Alkermes plc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| RTW Investments, LP | 1,672,356 | $87.6M | 0.75% | 00.0% | Unchanged |
| Morgan Stanley | 1,751,882 | $91.8M | 0.00% | +15,791+0.9% | Added |
| Northern Trust Corp | 1,831,619 | $96.0M | 0.01% | +134,537+7.9% | Added |
| Bain Capital Life Sciences Investors, LLC | 1,937,938 | $101.5M | 6.04% | +1,327,938+217.7% | Added |
| Goldman Sachs Group Inc | 2,023,984 | $106.0M | 0.01% | +141,806+7.5% | Added |
| BVF Inc | 2,154,704 | $112.9M | 2.89% | +154,704+7.7% | Added |
| Norges Bank | 2,156,814 | $113.0M | 0.01% | +2,156,814 | New |
| Nuveen, LLC | 2,324,197 | $121.8M | 0.03% | −136,372−5.5% | Reduced |
| Charles Schwab Investment Management Inc | 2,335,117 | $122.3M | 0.02% | +98,361+4.4% | Added |
| First Trust Advisors LP | 2,421,016 | $126.8M | 0.07% | −547,769−18.5% | Reduced |
| Primecap Management Co | 2,528,680 | $132.5M | 0.08% | −11,310−0.4% | Reduced |
| Wellington Management Group LLP | 2,814,804 | $147.5M | 0.03% | −155,362−5.2% | Reduced |
| Commodore Capital LP | 3,000,000 | $157.2M | 9.36% | −1,200,000−28.6% | Reduced |
| Holocene Advisors, LP | 3,601,472 | $188.7M | 0.43% | +1,284,146+55.4% | Added |
| American Century Companies Inc | 3,954,239 | $207.2M | 0.09% | −2,117,864−34.9% | Reduced |
| Deep Track Capital, LP | 4,000,000 | $209.6M | 3.09% | +409,677+11.4% | Added |
| Dimensional Fund Advisors LP | 4,194,873 | $219.8M | 0.04% | −327,505−7.2% | Reduced |
| Geode Capital Management, LLC | 4,477,876 | $234.7M | 0.01% | +295,609+7.1% | Added |
| Renaissance Technologies LLC | 6,460,928 | $338.5M | 0.47% | +300,500+4.9% | Added |
| Price T Rowe Associates Inc | 6,737,328 | $353.0M | 0.04% | +2,072,752+44.4% | Added |
| Vanguard Capital Management LLC | 7,515,025 | $393.7M | 0.01% | +87,628+1.2% | Added |
| State Street Corp | 9,160,575 | $480.0M | 0.01% | −304,711−3.2% | Reduced |
| Vanguard Portfolio Management LLC | 9,490,818 | $497.3M | 0.02% | −20,294−0.2% | Reduced |
| Baker Bros. Advisors LP | 10,012,267 | $524.6M | 2.63% | 00.0% | Unchanged |
| BlackRock, Inc. | 29,235,739 | $1.53B | 0.02% | +921,329+3.3% | Added |
| Avoro Capital Advisors LLC | 0 | $0 | 0.00% | −1,200,000−100.0% | Sold out |
| Logos Global Management LP | 0 | $0 | 0.00% | −350,000−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −208,497−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −173,626−100.0% | Sold out |
| Wedge Capital Management L L P | 0 | $0 | 0.00% | −151,234−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −135,660−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −122,127−100.0% | Sold out |
| Krensavage Asset Management, LLC | 0 | $0 | 0.00% | −107,822−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −83,806−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −81,989−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −67,458−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −52,826−100.0% | Sold out |
| Zacks Investment Management | 0 | $0 | 0.00% | −50,058−100.0% | Sold out |
| Great Point Partners LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Diadema Partners LP | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −46,400−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −41,446−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −41,342−100.0% | Sold out |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0 | $0 | 0.00% | −37,964−100.0% | Sold out |
| Perbak Capital Partners LLP | 0 | $0 | 0.00% | −31,185−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −22,885−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −20,800−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −20,180−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −19,891−100.0% | Sold out |
| Catalytic Wealth RIA, LLC | 0 | $0 | 0.00% | −16,980−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −16,928−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −16,516−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −15,354−100.0% | Sold out |
| Sumitomo Mitsui Trust Holdings, Inc. | 0 | $0 | 0.00% | −13,900−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −13,400−100.0% | Sold out |
| Lombard Odier Asset Management (USA) Corp | 0 | $0 | 0.00% | −10,232−100.0% | Sold out |
| Bleakley Financial Group, LLC | 0 | $0 | 0.00% | −10,064−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −8,485−100.0% | Sold out |
| Gallacher Capital Management LLC | 0 | $0 | 0.00% | −7,677−100.0% | Sold out |
| RHS Financial, LLC | 0 | $0 | 0.00% | −5,761−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −5,029−100.0% | Sold out |
| ABS Direct Equity Fund LLC | 0 | $0 | 0.00% | −4,900−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −3,395−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −3,009−100.0% | Sold out |
| Bayforest Capital Ltd | 0 | $0 | 0.00% | −1,441−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −526−100.0% | Sold out |
| E Fund Management (Hong Kong) Co., Ltd. | 0 | $0 | 0.00% | −503−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −431−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −324−100.0% | Sold out |
| Intentional Wealth Strategies, LLC | 0 | $0 | 0.00% | −156−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −79−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| Innovative Asset Advisors Group, LLC | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Frazier Financial Advisors, LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Curio Wealth, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Skopos Labs, Inc. | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |