Alkermes plc. ALKS
CIK 0001520262 · CUSIP G01767105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $796.96M 27,856,163 shares | 0.02% | +449.80K(+1.60%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $529.37M 18,503,074 shares | 0.01% | +290.40K(+1.60%)Added | SEC filing ↗ Aug 11, 2025 | ▾ |
| 03 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $287.30M 10,041,900 shares | 0.03% | -1.75M(-14.80%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 04 | STATE STREET CORP CIK 93751 · View history | $234.84M 8,208,256 shares | 0.01% | +185.59K(+2.30%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 05 | BAKER BROS. ADVISORS LP CIK 1263508 · View history | $183.41M 6,410,603 shares | 1.78% | +1.93M(+43.00%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 06 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $166.23M 5,810,160 shares | 0.22% | +71.33K(+1.20%)Added | SEC filing ↗ Aug 13, 2025 | ▾ |
| 07 | JPMORGAN CHASE & CO CIK 19617 · View history | $138.37M 4,836,294 shares | 0.01% | -398.70K(-7.60%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 08 | RTW INVESTMENTS, LP CIK 1493215 · View history | $133.96M 4,682,289 shares | 1.91% | -2.20M(-32.00%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $115.13M 4,023,552 shares | 0.01% | +83.86K(+2.10%)Added | SEC filing ↗ Aug 8, 2025 | ▾ |
| 10 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $104.63M 3,657,223 shares | 0.06% | +191.55K(+5.50%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 11 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $88.60M 3,096,637 shares | 0.02% | +105.63K(+3.50%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 12 | PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history | $83.04M 2,902,510 shares | 0.07% | -101.58K(-3.40%)Reduced | SEC filing ↗ Aug 11, 2025 | ▾ |
| 13 | Avoro Capital Advisors LLC CIK 1633313 · View history | $82.97M 2,900,000 shares | 1.45% | +450.00K(+18.40%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 14 | Holocene Advisors, LP CIK 1700574 · View history | $81.65M 2,853,768 shares | 0.20% | +679.17K(+31.20%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 15 | COMMODORE CAPITAL LP CIK 1831942 · View history | $70.09M 2,450,000 shares | 4.95% | +500.00K(+25.60%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 16 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $61.66M 2,155,087 shares | 0.00% | +647.90K(+43.00%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 17 | LOOMIS SAYLES & CO L P CIK 312348 · View history | $60.36M 2,109,894 shares | 0.08% | -330.39K(-13.50%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $59.85M 2,092,049 shares | 0.01% | +44.65K(+2.20%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 19 | Nuveen, LLC CIK 1871926 · View history | $58.60M 2,048,073 shares | 0.02% | +28.41K(+1.40%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 20 | NORGES BANK CIK 1374170 · View history | $53.33M 1,863,895 shares | 0.01% | -52.65K(-2.70%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
Showing 20 / 355 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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