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 |
|---|---|---|---|---|---|
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −73,134−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −65,706−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −60,560−100.0% | Sold out |
| Oliver Luxxe Assets LLC | 0 | $0 | 0.00% | −56,031−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −54,642−100.0% | Sold out |
| TD Asset Management Inc | 0 | $0 | 0.00% | −46,184−100.0% | Sold out |
| Vinva Investment Management Ltd | 0 | $0 | 0.00% | −26,520−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −31,200−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −28,411−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −27,462−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −27,203−100.0% | Sold out |
| NLB Skladi, upravljanje premozenja, d.o.o. | 0 | $0 | 0.00% | −27,000−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −26,767−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −24,759−100.0% | Sold out |
| Moran Wealth Management, LLC | 0 | $0 | 0.00% | −20,651−100.0% | Sold out |
| Unique Wealth Strategies, LLC | 0 | $0 | 0.00% | −20,534−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −19,646−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −18,913−100.0% | Sold out |
| Financiere des Professionnels - Fonds d,investissement inc. | 0 | $0 | 0.00% | −15,607−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −14,330−100.0% | Sold out |
| Swiss Life Asset Management Ltd | 0 | $0 | 0.00% | −13,834−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −13,701−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −12,322−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −9,426−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −7,910−100.0% | Sold out |
| Avanza Fonder AB | 0 | $0 | 0.00% | −7,327−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −7,252−100.0% | Sold out |
| St Germain D J Co Inc | 0 | $0 | 0.00% | −6,180−100.0% | Sold out |
| Horizon Investments, LLC | 0 | $0 | 0.00% | −3,296−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −2,515−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −174−100.0% | Sold out |
| Mark Sheptoff Financial Planning, LLC | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Rakuten Securities, Inc. | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Glen Eagle Advisors, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Avion Wealth | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| EMC Capital Management | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |