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 2025
Institutional positions in Alkermes plc. as of Jun 30, 2025. 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
- 353
- −13 vs. Q1 2025
- Shares held
- 169.2M
- −2.54M (−1.5%) vs. Q1 2025
- Total value
- $4.84B
- −$829.6M (−14.6%) vs. Q1 2025
- New holders
- 42
- 154 more added
- Sold out
- 55
- 120 more reduced
5 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding Alkermes plc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 27,856,163 | $797.0M | 0.02% | +449,795+1.6% | Added |
| Vanguard Group Inc | 18,503,074 | $529.4M | 0.01% | +290,400+1.6% | Added |
| Price T Rowe Associates Inc | 10,041,900 | $287.3M | 0.03% | −1,746,345−14.8% | Reduced |
| State Street Corp | 8,208,256 | $234.8M | 0.01% | +185,586+2.3% | Added |
| Baker Bros. Advisors LP | 6,410,603 | $183.4M | 1.78% | +1,927,318+43.0% | Added |
| Renaissance Technologies LLC | 5,810,160 | $166.2M | 0.22% | +71,332+1.2% | Added |
| JPMorgan Chase & Co | 4,836,294 | $138.4M | 0.01% | −398,701−7.6% | Reduced |
| RTW Investments, LP | 4,682,289 | $134.0M | 1.91% | −2,202,409−32.0% | Reduced |
| Geode Capital Management, LLC | 4,023,552 | $115.1M | 0.01% | +83,858+2.1% | Added |
| American Century Companies Inc | 3,657,223 | $104.6M | 0.06% | +191,549+5.5% | Added |
| Dimensional Fund Advisors LP | 3,096,637 | $88.6M | 0.02% | +105,632+3.5% | Added |
| Primecap Management Co | 2,902,510 | $83.0M | 0.07% | −101,585−3.4% | Reduced |
| Avoro Capital Advisors LLC | 2,900,000 | $83.0M | 1.45% | +450,000+18.4% | Added |
| Holocene Advisors, LP | 2,853,768 | $81.6M | 0.20% | +679,166+31.2% | Added |
| Commodore Capital LP | 2,450,000 | $70.1M | 4.95% | +500,000+25.6% | Added |
| Bank of America Corp | 2,155,087 | $61.7M | 0.00% | +647,905+43.0% | Added |
| Loomis Sayles & Co L P | 2,109,894 | $60.4M | 0.08% | −330,389−13.5% | Reduced |
| Charles Schwab Investment Management Inc | 2,092,049 | $59.9M | 0.01% | +44,646+2.2% | Added |
| Nuveen, LLC | 2,048,073 | $58.6M | 0.02% | +28,405+1.4% | Added |
| Norges Bank | 1,863,895 | $53.3M | 0.01% | −52,651−2.7% | Reduced |
| Northern Trust Corp | 1,813,609 | $51.9M | 0.01% | −63,281−3.4% | Reduced |
| Morgan Stanley | 1,802,052 | $51.6M | 0.00% | −361,547−16.7% | Reduced |
| Wellington Management Group LLP | 1,700,103 | $48.6M | 0.01% | −1,396,776−45.1% | Reduced |
| Goldman Sachs Group Inc | 1,667,697 | $47.7M | 0.01% | +195,646+13.3% | Added |
| Artisan Partners Limited Partnership | 1,541,807 | $44.1M | 0.07% | −94,462−5.8% | Reduced |
| Bank of New York Mellon Corp | 1,535,886 | $43.9M | 0.01% | −154,309−9.1% | Reduced |
| First Trust Advisors LP | 1,397,281 | $40.0M | 0.03% | −223,765−13.8% | Reduced |
| Paradigm Biocapital Advisors LP | 1,375,569 | $39.4M | 1.68% | +1,375,569 | New |
| UBS Group AG | 1,342,402 | $38.4M | 0.01% | −1,700,807−55.9% | Reduced |
| FMR LLC | 1,278,006 | $36.6M | 0.00% | −265,052−17.2% | Reduced |
| BNP Paribas Arbitrage, SA | 1,135,478 | $32.5M | 0.03% | +1,007,488+787.2% | Added |
| Frazier Life Sciences Management, L.P. | 1,000,647 | $28.6M | 1.14% | +399,518+66.5% | Added |
| Affinity Asset Advisors, LLC | 1,000,000 | $28.6M | 4.23% | 00.0% | Unchanged |
| Principal Financial Group Inc | 914,795 | $26.2M | 0.01% | −14,070−1.5% | Reduced |
| Pacer Advisors, Inc. | 906,957 | $25.9M | 0.07% | +16,813+1.9% | Added |
| Panagora Asset Management Inc | 877,174 | $25.1M | 0.11% | +17,192+2.0% | Added |
| Driehaus Capital Management LLC | 826,811 | $23.7M | 0.19% | +33,980+4.3% | Added |
| D. E. Shaw & Co., Inc. | 820,096 | $23.5M | 0.02% | +351,615+75.1% | Added |
| Ameriprise Financial Inc | 706,007 | $20.2M | 0.00% | +175,235+33.0% | Added |
| Barclays PLC | 694,122 | $19.9M | 0.01% | +274,171+65.3% | Added |
| Farallon Capital Management, L.L.C. | 691,663 | $19.8M | 0.09% | −698,137−50.2% | Reduced |
| Acadian Asset Management LLC | 687,252 | $19.6M | 0.04% | −194,575−22.1% | Reduced |
| UBS Asset Management Americas Inc | 671,429 | $19.2M | 0.00% | +189,097+39.2% | Added |
| MetLife Investment Management | 656,648 | $18.8M | 0.11% | +89,027+15.7% | Added |
| Public Sector Pension Investment Board | 636,913 | $18.2M | 0.08% | +51,651+8.8% | Added |
| Invesco Ltd. | 613,023 | $17.5M | 0.00% | −122,473−16.7% | Reduced |
| Segall Bryant & Hamill, LLC | 593,938 | $17.0M | 0.24% | +65,117+12.3% | Added |
| Woodline Partners LP | 558,465 | $16.0M | 0.08% | −185,535−24.9% | Reduced |
| MPM Oncology Impact Management LP | 549,262 | $15.7M | 2.72% | +211,659+62.7% | Added |
| Legal & General Group Plc | 535,342 | $15.3M | 0.00% | −17,227−3.1% | Reduced |
| Voya Investment Management LLC | 503,585 | $14.4M | 0.01% | +26,402+5.5% | Added |
| EcoR1 Capital, LLC | 500,000 | $14.3M | 0.85% | +500,000 | New |
| Glenmede Investment Management, LP | 483,363 | $13.8M | 0.07% | +483,363 | New |
| Rhumbline Advisers | 472,857 | $13.5M | 0.01% | +17,660+3.9% | Added |
| Raymond James Financial Inc | 454,417 | $13.0M | 0.00% | +24,935+5.8% | Added |
| AQR Capital Management LLC | 452,522 | $12.9M | 0.01% | −79,743−15.0% | Reduced |
| Rice Hall James & Associates, LLC | 421,885 | $12.1M | 0.65% | −4,700−1.1% | Reduced |
| Macquarie Group Ltd | 374,324 | $10.7M | 0.01% | +74,324+24.8% | Added |
| Canada Pension Plan Investment Board | 370,900 | $10.6M | 0.01% | +65,400+21.4% | Added |
| Jane Street Group, LLC | 357,097 | $10.2M | 0.02% | −167,590−31.9% | Reduced |
| StemPoint Capital LP | 351,124 | $10.0M | 3.23% | +158,772+82.5% | Added |
| Two Sigma Investments, LP | 325,903 | $9.32M | 0.02% | −232,037−41.6% | Reduced |
| Handelsbanken Fonder AB | 318,400 | $9.11M | 0.03% | +101,400+46.7% | Added |
| California Public Employees Retirement System | 308,542 | $8.83M | 0.01% | +15,352+5.2% | Added |
| Swiss National Bank | 299,300 | $8.56M | 0.01% | +1,500+0.5% | Added |
| Fisher Asset Management, LLC | 291,947 | $8.35M | 0.00% | −29,734−9.2% | Reduced |
| Mackenzie Financial Corp | 290,327 | $8.31M | 0.01% | +53,323+22.5% | Added |
| Man Group plc | 275,822 | $7.89M | 0.02% | +139,994+103.1% | Added |
| Pictet Asset Management Holding SA | 269,170 | $7.75M | 0.01% | −142,151−34.6% | Reduced |
| Peregrine Capital Management LLC | 264,620 | $7.57M | 0.23% | +264,620 | New |
| C WorldWide Group Holding A/S | 250,000 | $7.15M | 0.10% | 00.0% | Unchanged |
| Victory Capital Management Inc | 240,453 | $6.88M | 0.00% | +119,456+98.7% | Added |
| AXA S.A. | 236,189 | $6.76M | 0.02% | +380+0.2% | Added |
| HealthInvest Partners AB | 227,224 | $6.50M | 2.78% | +12,446+5.8% | Added |
| Royal Bank of Canada | 226,442 | $6.48M | 0.00% | −49,084−17.8% | Reduced |
| Palo Alto Investors LP | 221,021 | $6.32M | 1.35% | −492−0.2% | Reduced |
| S&CO Inc | 220,585 | $6.31M | 0.40% | −1,375−0.6% | Reduced |
| SEI Investments Co | 216,906 | $6.21M | 0.01% | +4,909+2.3% | Added |
| TD Asset Management Inc | 216,442 | $6.19M | 0.01% | +10,800+5.3% | Added |
| Manufacturers Life Insurance Company, The | 208,088 | $5.95M | 0.01% | +13,096+6.7% | Added |
| Krensavage Asset Management, LLC | 207,822 | $5.95M | 3.15% | 00.0% | Unchanged |
| Marshall Wace, LLP | 207,511 | $5.94M | 0.01% | +207,511 | New |
| Janus Henderson Group PLC | 204,595 | $5.85M | 0.00% | −28,349−12.2% | Reduced |
| Susquehanna International Group, LLP | 204,389 | $5.85M | 0.01% | −27,636−11.9% | Reduced |
| Alliancebernstein L.P. | 202,180 | $5.78M | 0.00% | −26,416−11.6% | Reduced |
| Neuberger Berman Group LLC | 196,331 | $5.62M | 0.00% | −3,646−1.8% | Reduced |
| Deutsche Bank AG | 191,448 | $5.48M | 0.00% | −15,387−7.4% | Reduced |
| Citigroup Inc | 187,846 | $5.37M | 0.00% | −174,539−48.2% | Reduced |
| Standard Life Aberdeen plc | 178,719 | $5.11M | 0.01% | +21,852+13.9% | Added |
| Prudential Financial Inc | 176,301 | $5.04M | 0.01% | −2,340−1.3% | Reduced |
| ExodusPoint Capital Management, LP | 161,386 | $4.62M | 0.06% | +9,990+6.6% | Added |
| Rafferty Asset Management, LLC | 161,285 | $4.61M | 0.02% | +10,837+7.2% | Added |
| California State Teachers Retirement System | 144,931 | $4.15M | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 140,723 | $4.05M | 0.01% | −12,136−7.9% | Reduced |
| New York State Common Retirement Fund | 141,084 | $4.04M | 0.01% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 138,433 | $3.96M | 0.10% | +113,094+446.3% | Added |
| Martingale Asset Management L P | 135,251 | $3.87M | 0.09% | +42,157+45.3% | Added |
| Gotham Asset Management, LLC | 133,472 | $3.82M | 0.02% | +53,804+67.5% | Added |
| Voloridge Investment Management, LLC | 131,431 | $3.76M | 0.01% | +31,474+31.5% | Added |
| Wedge Capital Management L L P | 128,462 | $3.68M | 0.07% | +10,946+9.3% | Added |