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, Q1 2025
Institutional positions in Alkermes plc. as of Mar 31, 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
- 371
- +33 vs. Q4 2024
- Shares held
- 172.3M
- +6.96M (+4.2%) vs. Q4 2024
- Total value
- $5.69B
- +$933.5M (+19.6%) vs. Q4 2024
- New holders
- 62
- 127 more added
- Sold out
- 29
- 133 more reduced
5 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Alkermes plc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 27,406,368 | $905.0M | 0.02% | −446,541−1.6% | Reduced |
| Vanguard Group Inc | 18,212,674 | $601.4M | 0.01% | −283,511−1.5% | Reduced |
| Price T Rowe Associates Inc | 11,788,245 | $389.2M | 0.05% | −468,202−3.8% | Reduced |
| State Street Corp | 8,022,670 | $264.9M | 0.01% | −792,305−9.0% | Reduced |
| RTW Investments, LP | 6,884,698 | $227.3M | 3.48% | −673,137−8.9% | Reduced |
| Renaissance Technologies LLC | 5,738,828 | $189.5M | 0.29% | +260,100+4.7% | Added |
| JPMorgan Chase & Co | 5,234,995 | $172.9M | 0.01% | +4,345,523+488.6% | Added |
| Baker Bros. Advisors LP | 4,483,285 | $148.0M | 1.64% | +301,534+7.2% | Added |
| Geode Capital Management, LLC | 3,939,694 | $130.1M | 0.01% | +121,045+3.2% | Added |
| American Century Companies Inc | 3,465,674 | $114.4M | 0.07% | +14,967+0.4% | Added |
| Wellington Management Group LLP | 3,096,879 | $102.3M | 0.02% | −3,915,604−55.8% | Reduced |
| UBS Group AG | 3,043,209 | $100.5M | 0.02% | +2,723,284+851.2% | Added |
| Primecap Management Co | 3,004,095 | $99.2M | 0.08% | −91,415−3.0% | Reduced |
| Dimensional Fund Advisors LP | 2,991,005 | $98.8M | 0.02% | −28,503−0.9% | Reduced |
| Avoro Capital Advisors LLC | 2,450,000 | $80.9M | 1.26% | 00.0% | Unchanged |
| Loomis Sayles & Co L P | 2,440,283 | $80.6M | 0.12% | +137,378+6.0% | Added |
| Holocene Advisors, LP | 2,174,602 | $71.8M | 0.21% | +1,916,699+743.2% | Added |
| Morgan Stanley | 2,163,599 | $71.4M | 0.01% | +344,604+18.9% | Added |
| Charles Schwab Investment Management Inc | 2,047,403 | $67.6M | 0.01% | −21,558−1.0% | Reduced |
| Nuveen, LLC | 2,019,668 | $66.7M | 0.02% | +2,019,668 | New |
| Commodore Capital LP | 1,950,000 | $64.4M | 4.74% | −350,000−15.2% | Reduced |
| Norges Bank | 1,916,546 | $63.3M | 0.01% | −54,395−2.8% | Reduced |
| Northern Trust Corp | 1,876,890 | $62.0M | 0.01% | −35,242−1.8% | Reduced |
| Bank of New York Mellon Corp | 1,690,195 | $55.8M | 0.01% | −446,395−20.9% | Reduced |
| Artisan Partners Limited Partnership | 1,636,269 | $54.0M | 0.09% | −352,527−17.7% | Reduced |
| First Trust Advisors LP | 1,621,046 | $53.5M | 0.05% | +127,395+8.5% | Added |
| FMR LLC | 1,543,058 | $51.0M | 0.00% | +1,329,485+622.5% | Added |
| Bank of America Corp | 1,507,182 | $49.8M | 0.00% | +1,107,897+277.5% | Added |
| Goldman Sachs Group Inc | 1,472,051 | $48.6M | 0.01% | +29,255+2.0% | Added |
| Farallon Capital Management, L.L.C. | 1,389,800 | $45.9M | 0.25% | +1,389,800 | New |
| Affinity Asset Advisors, LLC | 1,000,000 | $33.0M | 5.17% | −100,000−9.1% | Reduced |
| Virginia Retirement Systems Et Al | 948,133 | $31.3M | 0.23% | +948,133 | New |
| Principal Financial Group Inc | 928,865 | $30.7M | 0.02% | +29,101+3.2% | Added |
| Pacer Advisors, Inc. | 890,144 | $29.4M | 0.07% | −2,572,938−74.3% | Reduced |
| Quantedge Capital Pte Ltd | 881,900 | $29.1M | 9.21% | +824,000+1,423.1% | Added |
| Acadian Asset Management LLC | 881,827 | $29.1M | 0.08% | +846,861+2,422.0% | Added |
| Panagora Asset Management Inc | 859,982 | $28.4M | 0.14% | −2,158−0.3% | Reduced |
| Driehaus Capital Management LLC | 792,831 | $26.2M | 0.25% | +792,831 | New |
| Woodline Partners LP | 744,000 | $24.6M | 0.16% | +1,284+0.2% | Added |
| Invesco Ltd. | 735,496 | $24.3M | 0.00% | +13,580+1.9% | Added |
| Frazier Life Sciences Management, L.P. | 601,129 | $19.8M | 0.91% | 00.0% | Unchanged |
| Public Sector Pension Investment Board | 585,262 | $19.3M | 0.08% | +182,159+45.2% | Added |
| MetLife Investment Management | 567,621 | $18.7M | 0.10% | +470,926+487.0% | Added |
| Two Sigma Investments, LP | 557,940 | $18.4M | 0.04% | +229,420+69.8% | Added |
| Legal & General Group Plc | 552,569 | $18.2M | 0.00% | −21,679−3.8% | Reduced |
| AQR Capital Management LLC | 532,265 | $17.6M | 0.02% | −279,276−34.4% | Reduced |
| Ameriprise Financial Inc | 530,772 | $17.5M | 0.00% | +133,253+33.5% | Added |
| Segall Bryant & Hamill, LLC | 528,821 | $17.5M | 0.27% | −40,799−7.2% | Reduced |
| Jane Street Group, LLC | 524,687 | $17.3M | 0.03% | +196,846+60.0% | Added |
| Glenmede Trust Co NA | 499,019 | $16.5M | 0.09% | −15,929−3.1% | Reduced |
| UBS Asset Management Americas Inc | 482,332 | $15.9M | 0.00% | +20,091+4.3% | Added |
| Voya Investment Management LLC | 477,183 | $15.8M | 0.02% | +27,136+6.0% | Added |
| D. E. Shaw & Co., Inc. | 468,481 | $15.5M | 0.02% | −87,446−15.7% | Reduced |
| Ensign Peak Advisors, Inc | 460,300 | $15.2M | 0.03% | +397,384+631.6% | Added |
| Rhumbline Advisers | 455,197 | $15.0M | 0.01% | −9,517−2.0% | Reduced |
| Raymond James Financial Inc | 429,482 | $14.2M | 0.01% | +2,060+0.5% | Added |
| Rice Hall James & Associates, LLC | 426,585 | $14.1M | 0.83% | −3,342−0.8% | Reduced |
| Barclays PLC | 419,951 | $13.9M | 0.01% | −5,826−1.4% | Reduced |
| Pictet Asset Management Holding SA | 411,321 | $13.7M | 0.02% | −408,660−49.8% | Reduced |
| Citigroup Inc | 362,385 | $12.0M | 0.01% | +30,717+9.3% | Added |
| MPM Oncology Impact Management LP | 337,603 | $11.1M | 1.92% | +337,603 | New |
| Fisher Asset Management, LLC | 321,681 | $10.6M | 0.00% | −9,678−2.9% | Reduced |
| Canada Pension Plan Investment Board | 305,500 | $10.1M | 0.01% | +9,900+3.3% | Added |
| Macquarie Group Ltd | 300,000 | $9.91M | 0.01% | 00.0% | Unchanged |
| Swiss National Bank | 297,800 | $9.83M | 0.01% | −9,900−3.2% | Reduced |
| California Public Employees Retirement System | 293,190 | $9.68M | 0.01% | +3,391+1.2% | Added |
| Royal Bank of Canada | 275,526 | $9.10M | 0.00% | +148,696+117.2% | Added |
| C WorldWide Group Holding A/S | 250,000 | $8.26M | 0.10% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 237,004 | $7.83M | 0.01% | −95,622−28.7% | Reduced |
| AXA S.A. | 235,809 | $7.79M | 0.03% | −57,288−19.5% | Reduced |
| Janus Henderson Group PLC | 232,944 | $7.73M | 0.00% | +159,971+219.2% | Added |
| Susquehanna International Group, LLP | 232,025 | $7.66M | 0.01% | +116,318+100.5% | Added |
| Alliancebernstein L.P. | 228,596 | $7.55M | 0.00% | −162,570−41.6% | Reduced |
| S&CO Inc | 221,960 | $7.33M | 0.49% | +7,495+3.5% | Added |
| Palo Alto Investors LP | 221,513 | $7.31M | 1.39% | −67,795−23.4% | Reduced |
| Two Sigma Advisers, LP | 219,700 | $7.25M | 0.02% | +199,000+961.4% | Added |
| Handelsbanken Fonder AB | 217,000 | $7.17M | 0.03% | 00.0% | Unchanged |
| HealthInvest Partners AB | 214,778 | $7.09M | 3.13% | −51,721−19.4% | Reduced |
| Krensavage Asset Management, LLC | 207,822 | $6.86M | 3.79% | −30,314−12.7% | Reduced |
| Deutsche Bank AG | 206,835 | $6.83M | 0.00% | −17,835−7.9% | Reduced |
| TD Asset Management Inc | 205,642 | $6.79M | 0.01% | −16,088−7.3% | Reduced |
| SEI Investments Co | 211,997 | $6.71M | 0.01% | +136,603+181.2% | Added |
| Neuberger Berman Group LLC | 199,977 | $6.60M | 0.01% | +187,667+1,524.5% | Added |
| Manufacturers Life Insurance Company, The | 194,992 | $6.44M | 0.01% | −1,839−0.9% | Reduced |
| StemPoint Capital LP | 192,352 | $6.35M | 2.03% | −224,616−53.9% | Reduced |
| LSV Asset Management | 182,965 | $6.04M | 0.01% | −189,435−50.9% | Reduced |
| Prudential Financial Inc | 178,641 | $5.90M | 0.01% | −18,990−9.6% | Reduced |
| Millennium Management LLC | 177,105 | $5.85M | 0.01% | −463,401−72.3% | Reduced |
| Algert Global LLC | 176,859 | $5.84M | 0.14% | +176,859 | New |
| Teachers Retirement System of the State of Kentucky | 174,400 | $5.76M | 0.05% | −4,600−2.6% | Reduced |
| EAM Investors, LLC | 159,055 | $5.25M | 0.91% | +159,055 | New |
| Standard Life Aberdeen plc | 156,867 | $5.18M | 0.01% | −87,452−35.8% | Reduced |
| Qube Research & Technologies Ltd | 156,476 | $5.17M | 0.01% | −30,409−16.3% | Reduced |
| Russell Investments Group, Ltd. | 152,859 | $5.07M | 0.01% | +147,906+2,986.2% | Added |
| Van Eck Associates Corp | 152,391 | $5.03M | 0.01% | +14,824+10.8% | Added |
| ExodusPoint Capital Management, LP | 151,396 | $5.00M | 0.07% | +151,396 | New |
| Rafferty Asset Management, LLC | 150,448 | $4.97M | 0.02% | −59,132−28.2% | Reduced |
| Integral Health Asset Management, LLC | 150,000 | $4.95M | 0.55% | +150,000 | New |
| Schonfeld Strategic Advisors LLC | 145,071 | $4.79M | 0.03% | +135,270+1,380.2% | Added |
| California State Teachers Retirement System | 144,931 | $4.79M | 0.01% | −1,697−1.2% | Reduced |