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 |
|---|---|---|---|---|---|
| Neo Ivy Capital Management | 95,741 | $5.02M | 1.16% | +95,741 | New |
| State of Wisconsin Investment Board | 97,631 | $5.12M | 0.01% | −41,702−29.9% | Reduced |
| Integral Health Asset Management, LLC | 100,000 | $5.24M | 0.21% | +100,000 | New |
| DAFNA Capital Management LLC | 101,266 | $5.31M | 1.01% | −38,216−27.4% | Reduced |
| Thrivent Financial for Lutherans | 109,450 | $5.74M | 0.01% | −762−0.7% | Reduced |
| EAM Investors, LLC | 110,869 | $5.81M | 0.52% | +110,869 | New |
| State Board of Administration of Florida Retirement System | 112,663 | $5.90M | 0.01% | −16,773−13.0% | Reduced |
| Silverarc Capital Management, LLC | 113,494 | $5.95M | 0.66% | −346,820−75.3% | Reduced |
| Squarepoint Ops LLC | 115,195 | $6.04M | 0.01% | −162,424−58.5% | Reduced |
| TD Asset Management Inc | 118,432 | $6.21M | 0.01% | +118,432 | New |
| Voya Investment Management LLC | 118,998 | $6.23M | 0.01% | +25,868+27.8% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 119,004 | $6.24M | 0.01% | −59,451−33.3% | Reduced |
| Bellevue Group AG | 120,243 | $6.30M | 0.13% | +111,373+1,255.6% | Added |
| Manufacturers Life Insurance Company, The | 120,562 | $6.32M | 0.00% | +49,147+68.8% | Added |
| Knott David M Jr | 121,759 | $6.38M | 3.37% | +1,759+1.5% | Added |
| Man Group plc | 124,038 | $6.50M | 0.01% | −501,008−80.2% | Reduced |
| New York State Common Retirement Fund | 132,017 | $6.92M | 0.01% | −5,601−4.1% | Reduced |
| SummitTX Capital, L.P. | 134,194 | $7.03M | 0.19% | −22,065−14.1% | Reduced |
| Creative Planning | 135,159 | $7.08M | 0.00% | +60,136+80.2% | Added |
| Cinctive Capital Management LP | 138,603 | $7.26M | 0.29% | +138,603 | New |
| SEI Investments Co | 141,362 | $7.41M | 0.01% | −12,455−8.1% | Reduced |
| Balyasny Asset Management LLC | 142,366 | $7.46M | 0.01% | −444,409−75.7% | Reduced |
| Alliancebernstein L.P. | 217,917 | $7.71M | 0.00% | −43,018−16.5% | Reduced |
| Bessemer Group Inc | 157,097 | $8.23M | 0.01% | −1,300−0.8% | Reduced |
| Vanguard Asset Management, Ltd | 157,759 | $8.27M | 0.01% | +21,349+15.7% | Added |
| SG Americas Securities, LLC | 164,236 | $8.61M | 0.00% | −14,757−8.2% | Reduced |
| Martingale Asset Management L P | 170,004 | $8.91M | 0.21% | −24,762−12.7% | Reduced |
| HighVista Strategies LLC | 179,256 | $9.39M | 2.14% | +106,067+144.9% | Added |
| Citigroup Inc | 184,901 | $9.69M | 0.00% | +137,451+289.7% | Added |
| Rhenman & Partners Asset Management AB | 185,250 | $9.71M | 0.92% | +52,000+39.0% | Added |
| Polygon Management Ltd. | 189,979 | $9.95M | 1.62% | +30,188+18.9% | Added |
| Deutsche Bank AG | 191,316 | $10.0M | 0.00% | +41,582+27.8% | Added |
| Standard Life Aberdeen plc | 193,805 | $10.2M | 0.01% | +193,805 | New |
| Schonfeld Strategic Advisors LLC | 195,174 | $10.2M | 0.05% | +178,590+1,076.9% | Added |
| California State Teachers Retirement System | 197,412 | $10.3M | 0.01% | +13,617+7.4% | Added |
| Wells Fargo & Company | 199,433 | $10.4M | 0.00% | +81,507+69.1% | Added |
| Rock Springs Capital Management LP | 199,811 | $10.5M | 0.51% | +15,825+8.6% | Added |
| AQR Capital Management LLC | 212,968 | $11.2M | 0.00% | −171,009−44.5% | Reduced |
| HealthInvest Partners AB | 213,329 | $11.2M | 3.01% | −29,144−12.0% | Reduced |
| Amundi | 217,739 | $11.4M | 0.00% | +153,029+236.5% | Added |
| Barclays PLC | 219,935 | $11.5M | 0.00% | +44,952+25.7% | Added |
| Federated Hermes, Inc. | 221,589 | $11.6M | 0.02% | +192,130+652.2% | Added |
| Russell Investments Group, Ltd. | 222,624 | $11.7M | 0.01% | +123,906+125.5% | Added |
| Peregrine Capital Management LLC | 232,255 | $12.2M | 0.40% | −11,752−4.8% | Reduced |
| Palo Alto Investors LP | 242,560 | $12.7M | 1.76% | 00.0% | Unchanged |
| S&CO Inc | 244,760 | $12.8M | 0.74% | 00.0% | Unchanged |
| StemPoint Capital LP | 248,015 | $13.0M | 2.25% | +167,523+208.1% | Added |
| C WorldWide Group Holding A/S | 250,000 | $13.1M | 0.32% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 260,208 | $13.6M | 0.01% | +62,988+31.9% | Added |
| JPMorgan Chase & Co | 262,721 | $14.2M | 0.00% | −3,839,068−93.6% | Reduced |
| Senator Investment Group LP | 275,000 | $14.4M | 0.53% | +40,000+17.0% | Added |
| GW&K Investment Management, LLC | 292,387 | $15.3M | 0.12% | +292,387 | New |
| Eagle Health Investments LP | 297,302 | $15.6M | 2.58% | +58,629+24.6% | Added |
| UBS Group AG | 300,350 | $15.7M | 0.00% | −194,673−39.3% | Reduced |
| Swiss National Bank | 316,900 | $16.6M | 0.01% | +6,600+2.1% | Added |
| Millennium Management LLC | 319,595 | $16.7M | 0.01% | +319,595 | New |
| Ensign Peak Advisors, Inc | 335,208 | $17.6M | 0.03% | +325,892+3,498.2% | Added |
| Nomura Asset Management International Inc. | 337,043 | $17.7M | 0.03% | −2,955−0.9% | Reduced |
| California Public Employees Retirement System | 347,246 | $18.2M | 0.01% | +19,044+5.8% | Added |
| Glenmede Trust Co NA | 361,184 | $18.9M | 0.08% | −16,906−4.5% | Reduced |
| Rhumbline Advisers | 387,999 | $20.3M | 0.02% | −61,532−13.7% | Reduced |
| Rice Hall James & Associates, LLC | 390,866 | $20.5M | 1.00% | +522+0.1% | Added |
| Legal & General Group Plc | 393,524 | $20.6M | 0.00% | +12,802+3.4% | Added |
| Prosight Management, LP | 394,389 | $20.7M | 3.56% | −119,243−23.2% | Reduced |
| Gendell Jeffrey L | 395,882 | $20.7M | 0.19% | +44,409+12.6% | Added |
| Fisher Asset Management, LLC | 419,102 | $22.0M | 0.01% | +28,623+7.3% | Added |
| Raymond James Financial Inc | 422,761 | $22.2M | 0.01% | +105,327+33.2% | Added |
| Invesco Ltd. | 443,107 | $23.2M | 0.00% | −81,168−15.5% | Reduced |
| Artia Global Partners LP | 448,964 | $23.5M | 4.47% | +448,964 | New |
| Segall Bryant & Hamill, LLC | 498,222 | $26.1M | 0.31% | −87,547−14.9% | Reduced |
| MetLife Investment Management | 512,924 | $26.9M | 0.12% | +424,072+477.3% | Added |
| Spruce Street Capital LP | 543,876 | $28.5M | 5.59% | +225,884+71.0% | Added |
| Woodline Partners LP | 560,282 | $29.4M | 0.09% | +1,715+0.3% | Added |
| Ameriprise Financial Inc | 630,325 | $33.0M | 0.01% | −110,816−15.0% | Reduced |
| BNP Paribas Arbitrage, SA | 655,140 | $34.3M | 0.02% | +127,173+24.1% | Added |
| Frontier Capital Management Co LLC | 659,562 | $34.6M | 0.32% | +659,562 | New |
| Public Sector Pension Investment Board | 677,405 | $35.5M | 0.09% | 00.0% | Unchanged |
| Frazier Life Sciences Management, L.P. | 700,647 | $36.7M | 0.80% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 765,543 | $40.1M | 0.12% | −167,399−17.9% | Reduced |
| Artisan Partners Limited Partnership | 831,006 | $43.5M | 0.07% | −280,735−25.3% | Reduced |
| Pictet Asset Management Holding SA | 838,026 | $44.0M | 0.04% | −104,158−11.1% | Reduced |
| Victory Capital Management Inc | 916,709 | $48.0M | 0.03% | +607,780+196.7% | Added |
| Bank of America Corp | 918,303 | $48.1M | 0.00% | −292,548−24.2% | Reduced |
| Summit Partners Public Asset Management, LLC | 950,234 | $49.8M | 1.29% | +950,234 | New |
| Marshall Wace, LLP | 969,954 | $50.8M | 0.04% | −29,368−2.9% | Reduced |
| Principal Financial Group Inc | 983,822 | $51.5M | 0.03% | +25,806+2.7% | Added |
| Soleus Capital Management, L.P. | 1,029,252 | $53.9M | 1.86% | −941,612−47.8% | Reduced |
| Two Sigma Investments, LP | 1,038,311 | $54.4M | 0.04% | +257,628+33.0% | Added |
| T. Rowe Price Investment Management, Inc. | 1,090,947 | $57.2M | 0.04% | +196,671+22.0% | Added |
| Bank of New York Mellon Corp | 1,097,282 | $57.5M | 0.01% | +60,822+5.9% | Added |
| Affinity Asset Advisors, LLC | 1,125,000 | $58.9M | 2.88% | −225,000−16.7% | Reduced |
| FMR LLC | 1,134,410 | $59.4M | 0.00% | −189,337−14.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,159,216 | $60.7M | 0.06% | +919,545+383.7% | Added |
| Franklin Resources Inc | 1,170,242 | $61.3M | 0.01% | +987,707+541.1% | Added |
| Vanguard Fiduciary Trust Co | 1,177,945 | $61.7M | 0.01% | +48,709+4.3% | Added |
| Driehaus Capital Management LLC | 1,238,809 | $64.9M | 0.38% | +446,846+56.4% | Added |
| D. E. Shaw & Co., Inc. | 1,312,031 | $68.7M | 0.04% | +601,734+84.7% | Added |
| Adage Capital Partners GP, L.L.C. | 1,368,000 | $71.7M | 0.10% | +1,368,000 | New |
| Loomis Sayles & Co L P | 1,585,518 | $83.1M | 0.10% | −199,063−11.2% | Reduced |
| Citadel Advisors LLC | 1,645,101 | $86.2M | 0.05% | −596,483−26.6% | Reduced |