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.
13F holders, Q1 2026
Institutional positions in Alkermes plc. as of Mar 31, 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
- 390
- +30 vs. Q4 2025
- Shares held
- 176.6M
- +16.2M (+10.1%) vs. Q4 2025
- Total value
- $6.22B
- +$1.73B (+38.5%) vs. Q4 2025
- New holders
- 76
- 121 more added
- Sold out
- 46
- 149 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Alkermes plc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Moore Capital Management, LP | 158,499 | $5.60M | 0.20% | +158,499 | New |
| Bessemer Group Inc | 158,397 | $5.60M | 0.01% | +757+0.5% | Added |
| SummitTX Capital, L.P. | 156,259 | $5.53M | 0.18% | +156,259 | New |
| Janus Henderson Group PLC | 154,016 | $5.45M | 0.00% | +8,212+5.6% | Added |
| SEI Investments Co | 153,817 | $5.44M | 0.01% | −36,900−19.3% | Reduced |
| Wedge Capital Management L L P | 151,234 | $5.35M | 0.10% | −21,016−12.2% | Reduced |
| Deutsche Bank AG | 149,734 | $5.29M | 0.00% | +15,273+11.4% | Added |
| DAFNA Capital Management LLC | 139,482 | $4.93M | 1.12% | +9,234+7.1% | Added |
| State of Wisconsin Investment Board | 139,333 | $4.93M | 0.01% | +46,100+49.4% | Added |
| New York State Common Retirement Fund | 137,618 | $4.87M | 0.01% | −11,666−7.8% | Reduced |
| Vanguard Asset Management, Ltd | 136,410 | $4.82M | 0.00% | +136,410 | New |
| Alps Advisors Inc | 135,660 | $4.80M | 0.02% | +281+0.2% | Added |
| Rhenman & Partners Asset Management AB | 133,250 | $4.71M | 0.58% | 00.0% | Unchanged |
| Prudential Financial Inc | 131,870 | $4.66M | 0.01% | −62,635−32.2% | Reduced |
| State Board of Administration of Florida Retirement System | 129,436 | $4.58M | 0.01% | −2,260−1.7% | Reduced |
| Assenagon Asset Management S.A. | 122,127 | $4.32M | 0.01% | +11,845+10.7% | Added |
| Knott David M Jr | 120,000 | $4.24M | 2.53% | +25,000+26.3% | Added |
| Wells Fargo & Company | 117,926 | $4.17M | 0.00% | −115,061−49.4% | Reduced |
| Thrivent Financial for Lutherans | 110,212 | $3.90M | 0.01% | −6,361−5.5% | Reduced |
| Krensavage Asset Management, LLC | 107,822 | $3.81M | 1.49% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 98,718 | $3.47M | 0.00% | −58,641−37.3% | Reduced |
| Voya Investment Management LLC | 93,130 | $3.29M | 0.00% | −408,677−81.4% | Reduced |
| Illinois Municipal Retirement Fund | 90,989 | $3.22M | 0.04% | −490−0.5% | Reduced |
| State of Alaska, Department of Revenue | 90,546 | $3.20M | 0.03% | −2,481−2.7% | Reduced |
| MetLife Investment Management | 88,852 | $3.14M | 0.02% | −441,527−83.2% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 87,617 | $3.04M | 0.00% | +358+0.4% | Added |
| Exome Asset Management LLC | 84,103 | $2.97M | 1.75% | +84,103 | New |
| Vident Advisory, LLC | 84,090 | $2.97M | 0.03% | +1,796+2.2% | Added |
| Bridgewater Associates, LP | 83,806 | $2.96M | 0.01% | −260,646−75.7% | Reduced |
| KLP Kapitalforvaltning AS | 82,100 | $2.90M | 0.01% | +1,000+1.2% | Added |
| Pathstone Holdings, LLC | 81,988 | $2.90M | 0.01% | +3,807+4.9% | Added |
| HRT Financial LP | 81,989 | $2.90M | 0.01% | −118,235−59.1% | Reduced |
| Vanguard Global Advisers, LLC | 81,642 | $2.89M | 0.00% | +81,642 | New |
| StemPoint Capital LP | 80,492 | $2.85M | 0.55% | +80,492 | New |
| Allianz Asset Management GmbH | 80,360 | $2.84M | 0.00% | −266,948−76.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 77,928 | $2.76M | 0.02% | +12,165+18.5% | Added |
| Profund Advisors LLC | 77,769 | $2.75M | 0.10% | −2,855−3.5% | Reduced |
| Colony Group, LLC | 77,052 | $2.72M | 0.00% | −46,989−37.9% | Reduced |
| Creative Planning | 75,023 | $2.65M | 0.00% | +14,243+23.4% | Added |
| Natixis Advisors, L.P. | 74,853 | $2.65M | 0.00% | +2,215+3.0% | Added |
| Louisiana State Employees Retirement System | 73,200 | $2.59M | 0.05% | −2,400−3.2% | Reduced |
| HighVista Strategies LLC | 73,189 | $2.59M | 0.71% | +46,788+177.2% | Added |
| Mutual of America Capital Management LLC | 72,668 | $2.57M | 0.03% | −199−0.3% | Reduced |
| O'Shaughnessy Asset Management, LLC | 71,778 | $2.54M | 0.01% | −18,796−20.8% | Reduced |
| Manufacturers Life Insurance Company, The | 71,415 | $2.53M | 0.00% | −42,319−37.2% | Reduced |
| State of Tennessee, Treasury Department | 66,936 | $2.37M | 0.01% | +522+0.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 66,815 | $2.36M | 0.01% | +17,839+36.4% | Added |
| Federation des caisses Desjardins du Quebec | 66,144 | $2.34M | 0.01% | +6,138+10.2% | Added |
| Amundi | 64,710 | $2.29M | 0.00% | +32,327+99.8% | Added |
| Intech Investment Management LLC | 60,967 | $2.16M | 0.02% | −98,614−61.8% | Reduced |
| Schroder Investment Management Group | 67,458 | $2.03M | 0.00% | +11,935+21.5% | Added |
| Susquehanna International Group, LLP | 56,795 | $2.01M | 0.00% | +41,922+281.9% | Added |
| Royce & Associates LP | 55,683 | $1.97M | 0.02% | +7,673+16.0% | Added |
| Handelsbanken Fonder AB | 55,000 | $1.95M | 0.01% | 00.0% | Unchanged |
| Diversified Trust Co | 54,913 | $1.94M | 0.04% | +5,855+11.9% | Added |
| New York State Teachers Retirement System | 54,368 | $1.92M | 0.00% | −22,929−29.7% | Reduced |
| State of New Jersey Common Pension Fund D | 53,609 | $1.90M | 0.01% | +82+0.2% | Added |
| Edgestream Partners, L.P. | 52,826 | $1.87M | 0.06% | −238,473−81.9% | Reduced |
| Lumbard & Kellner, LLC | 52,593 | $1.86M | 0.64% | +52,593 | New |
| Zacks Investment Management | 50,058 | $1.77M | 0.01% | −34,303−40.7% | Reduced |
| Birchview Capital, LP | 50,000 | $1.77M | 1.01% | 00.0% | Unchanged |
| Great Point Partners LLC | 50,000 | $1.77M | 0.43% | +50,000 | New |
| Diadema Partners LP | 50,000 | $1.77M | 0.73% | +50,000 | New |
| HSBC Holdings PLC | 48,337 | $1.73M | 0.00% | +5,520+12.9% | Added |
| Canada Pension Plan Investment Board | 48,500 | $1.71M | 0.00% | −262,100−84.4% | Reduced |
| Virtus ETF Advisers LLC | 47,468 | $1.68M | 0.78% | −240−0.5% | Reduced |
| Citigroup Inc | 47,450 | $1.68M | 0.00% | −25,924−35.3% | Reduced |
| Amalgamated Bank | 47,378 | $1.68M | 0.01% | −497−1.0% | Reduced |
| STRS Ohio | 46,900 | $1.66M | 0.01% | +800+1.7% | Added |
| ADAR1 Capital Management, LLC | 46,400 | $1.64M | 0.10% | −17,300−27.2% | Reduced |
| Ritholtz Wealth Management | 45,844 | $1.62M | 0.03% | −18,264−28.5% | Reduced |
| Yousif Capital Management, LLC | 45,655 | $1.61M | 0.02% | −356−0.8% | Reduced |
| Quantinno Capital Management LP | 44,932 | $1.59M | 0.00% | +25,492+131.1% | Added |
| Police & Firemen's Retirement System of New Jersey | 44,145 | $1.56M | 0.01% | 00.0% | Unchanged |
| Nicollet Investment Management, Inc. | 43,301 | $1.53M | 0.52% | −1,178−2.6% | Reduced |
| Arizona State Retirement System | 43,086 | $1.52M | 0.01% | −539−1.2% | Reduced |
| Envestnet Asset Management Inc | 42,416 | $1.50M | 0.00% | +2,084+5.2% | Added |
| Gotham Asset Management, LLC | 41,548 | $1.47M | 0.00% | −20,921−33.5% | Reduced |
| Jump Financial, LLC | 41,446 | $1.47M | 0.02% | +8,817+27.0% | Added |
| Toroso Investments, LLC | 41,342 | $1.46M | 0.00% | +2,289+5.9% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 40,833 | $1.44M | 0.01% | −45−0.1% | Reduced |
| Dana Investment Advisors, Inc. | 40,368 | $1.43M | 0.04% | +912+2.3% | Added |
| LPL Financial LLC | 39,447 | $1.39M | 0.00% | −4,795−10.8% | Reduced |
| CenterBook Partners LP | 38,625 | $1.37M | 0.07% | +38,625 | New |
| Vanguard Investments Australia, Ltd. | 38,147 | $1.35M | 0.00% | +38,147 | New |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 37,964 | $1.34M | 0.00% | +17,596+86.4% | Added |
| Oregon Public Employees Retirement Fund | 37,782 | $1.34M | 0.02% | 00.0% | Unchanged |
| ProShare Advisors LLC | 32,729 | $1.16M | 0.00% | −6,145−15.8% | Reduced |
| Hudson Portfolio Management LLC | 32,235 | $1.14M | 0.96% | −1,270−3.8% | Reduced |
| Vontobel Holding Ltd. | 32,101 | $1.14M | 0.00% | +6,054+23.2% | Added |
| Militia Capital Management LLC | 31,918 | $1.13M | 0.25% | +31,918 | New |
| Cerity Partners LLC | 31,836 | $1.13M | 0.00% | −494−1.5% | Reduced |
| Perbak Capital Partners LLP | 31,185 | $1.10M | 0.27% | +31,185 | New |
| DnB Asset Management AS | 30,525 | $1.08M | 0.00% | −237−0.8% | Reduced |
| Vestcor Inc | 30,230 | $1.07M | 0.03% | +8,464+38.9% | Added |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 29,805 | $1.05M | 0.02% | +4,991+20.1% | Added |
| China Universal Asset Management Co., Ltd. | 29,573 | $1.05M | 0.08% | +2,667+9.9% | Added |
| Federated Hermes, Inc. | 29,459 | $1.04M | 0.00% | +2,913+11.0% | Added |
| Allstate Corp | 29,154 | $1.03M | 0.01% | +29,154 | New |
| Guggenheim Capital LLC | 28,649 | $1.01M | 0.01% | +28,649 | New |