Alkermes plc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| BLACKROCK, INC. | 05/13/2026 | 28.31 M | $1.00 B | 0.15% | 17.19% |
| BAKER BROS. ADVISORS LP | 05/15/2026 | 10.01 M | $354.03 M | 0.00% | 6.08% |
| 05/08/2026 | 9.51 M | $336.31 M | 100.00% | 5.77% | |
| STATE STREET CORP | 05/15/2026 | 9.47 M | $334.69 M | -0.08% | 5.75% |
| 05/15/2026 | 7.43 M | $262.63 M | 100.00% | 4.51% | |
| RENAISSANCE TECHNOLOGIES LLC | 05/14/2026 | 6.16 M | $217.83 M | -7.61% | 3.74% |
| AMERICAN CENTURY COMPANIES INC | 05/15/2026 | 6.07 M | $214.71 M | 1.94% | 3.69% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 05/15/2026 | 4.66 M | $164.94 M | -48.17% | 2.83% |
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 4.52 M | $159.85 M | 2.48% | 2.75% |
| COMMODORE CAPITAL LP | 05/15/2026 | 4.20 M | $148.51 M | 18.31% | 2.55% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 4.18 M | $147.91 M | 2.49% | 2.54% |
| JPMORGAN CHASE & CO | 05/13/2026 | 4.10 M | $123.67 M | -20.88% | 2.49% |
| DEEP TRACK CAPITAL, LP | 05/15/2026 | 3.59 M | $126.95 M | 79.52% | 2.18% |
| WELLINGTON MANAGEMENT GROUP LLP | 05/15/2026 | 2.97 M | $105.03 M | -1.66% | 1.80% |
| FIRST TRUST ADVISORS LP | 05/13/2026 | 2.97 M | $104.98 M | 104.18% | 1.80% |
| PRIMECAP MANAGEMENT CO/CA/ | 05/11/2026 | 2.54 M | $89.81 M | -0.95% | 1.54% |
| NUVEEN, LLC | 04/30/2026 | 2.46 M | $87.01 M | 1.38% | 1.49% |
| HOLOCENE ADVISORS, LP | 05/15/2026 | 2.32 M | $81.94 M | 100.00% | 1.41% |
| CITADEL ADVISORS LLC | 05/15/2026 | 2.24 M | $79.26 M | 87.07% | 1.36% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 2.24 M | $79.09 M | 3.90% | 1.36% |
| BVF INC/IL | 05/15/2026 | 2.00 M | $70.72 M | 100.00% | 1.21% |
| SOLEUS CAPITAL MANAGEMENT, L.P. | 05/14/2026 | 1.97 M | $69.69 M | 49.04% | 1.20% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 1.88 M | $66.55 M | -17.00% | 1.14% |
| LOOMIS SAYLES & CO L P | 05/14/2026 | 1.78 M | $63.10 M | -6.20% | 1.08% |
| MORGAN STANLEY | 05/15/2026 | 1.74 M | $61.39 M | -8.07% | 1.05% |
| NORTHERN TRUST CORP | 05/14/2026 | 1.70 M | $60.01 M | 2.64% | 1.03% |
| RTW INVESTMENTS, LP | 05/15/2026 | 1.67 M | $59.13 M | 0.00% | 1.02% |
| AFFINITY ASSET ADVISORS, LLC | 05/14/2026 | 1.35 M | $47.74 M | 35.00% | 0.82% |
| FMR LLC | 05/15/2026 | 1.32 M | $46.81 M | -2.32% | 0.80% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 1.21 M | $42.82 M | -9.17% | 0.74% |
| AVORO CAPITAL ADVISORS LLC | 05/15/2026 | 1.20 M | $42.43 M | -14.29% | 0.73% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 1.13 M | $39.93 M | 100.00% | 0.69% |
| ARTISAN PARTNERS LIMITED PARTNERSHIP | 05/13/2026 | 1.11 M | $39.31 M | -17.60% | 0.68% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 1.04 M | $36.65 M | -3.50% | 0.63% |
| MARSHALL WACE, LLP | 05/15/2026 | 999.32 K | $35.34 M | 669.31% | 0.61% |
| PRINCIPAL FINANCIAL GROUP INC | 05/04/2026 | 958.02 K | $33.88 M | 1.10% | 0.58% |
| PICTET ASSET MANAGEMENT HOLDING SA | 04/22/2026 | 942.18 K | $30.17 M | -36.22% | 0.57% |
| PANAGORA ASSET MANAGEMENT INC | 05/14/2026 | 932.94 K | $32.99 M | 0.43% | 0.57% |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 05/15/2026 | 894.28 K | $31.62 M | 42,504.86% | 0.54% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 05/15/2026 | 791.96 K | $28.00 M | -0.63% | 0.48% |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 780.68 K | $27.60 M | -35.66% | 0.47% |
| AMERIPRISE FINANCIAL INC | 05/15/2026 | 741.14 K | $26.21 M | 39.48% | 0.45% |
| D. E. SHAW & CO., INC. | 05/15/2026 | 710.30 K | $25.12 M | -22.05% | 0.43% |
| FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | 05/15/2026 | 700.65 K | $24.77 M | 0.00% | 0.43% |
| PACER ADVISORS, INC. | 06/18/2026 | 688.56 K | $24.35 M | 2.03% | 0.42% |
| PUBLIC SECTOR PENSION INVESTMENT BOARD | 05/13/2026 | 677.41 K | $23.95 M | 0.93% | 0.41% |
| MAN GROUP PLC | 05/15/2026 | 625.05 K | $22.10 M | 100.01% | 0.38% |
| BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC | 05/15/2026 | 610.00 K | $21.57 M | 100.00% | 0.37% |
| BALYASNY ASSET MANAGEMENT L.P. | 05/15/2026 | 586.78 K | $20.75 M | -13.66% | 0.36% |
| SEGALL BRYANT & HAMILL, LLC | 05/22/2026 | 585.77 K | $20.71 M | -4.80% | 0.36% |
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Alkermes plc institutional Ownership - FAQ's
During the previous two years, 547 institutional investors and hedge funds held shares of Alkermes plc. The most heavily invested institutionals were:
BlackRock, Inc.: 28.31 M
BAKER BROS. ADVISORS LP: 10.01 M
STATE STREET CORP: 9.47 M
RENAISSANCE TECHNOLOGIES LLC: 6.16 M
AMERICAN CENTURY COMPANIES INC: 6.07 M
PRICE T ROWE ASSOCIATES INC /MD/: 4.66 M
107.00% of Alkermes plc stock is owned by institutional investors.
Institutional investors have bought a total of 234.67 M shares in the last 24 months. This purchase volume represents approximately $6.68 B in transactions.