Alkermes plc (ALKS) Institutional Ownership & Insider Trading
424 institutions reported holding Alkermes plc shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 34 insider trades on Form 4 since 2025-10-01.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
ALKSAlkermes plcFollow ALKS — free
—
Price chart with a free account
- Market cap
- 7.3B
- P/E TTM
- 114.8
- Dividend yield
- —
- 52-week
- —
- Next earnings
- 3 Nov, in 10 days
Institutions · all 13F filers
quarter to 30 Jun 2026 · filers in both quarters424 institutions held —% of the shares. Across filers that reported both quarters, shares held changed -0.5%.
Largest moves, shares (millions)
Institutional flow by quarter
net shares added or trimmed, millions · filers in both quarters| Quarter | Holders | Shares held, M | Change | Increased | New | Decreased | Closed |
|---|---|---|---|---|---|---|---|
| Jun 26 | 424 | 178 | -0.5% | 122 | 76 | 127 | 40 |
| Mar 26 | 385 | 176 | -0.5% | 108 | 58 | 134 | 43 |
| Dec 25 | 362 | 180 | +2.7% | 131 | 38 | 116 | 36 |
| Sep 25 | 347 | 173 | +3.6% | 130 | 31 | 122 | 30 |
| Jun 25 | 350 | 169 | -1.4% | 140 | 32 | 112 | 43 |
| Mar 25 | 366 | 169 | +2.0% | 117 | 51 | 123 | 26 |
| Dec 24 | 337 | 167 | -6.7% | 104 | 33 | 110 | 40 |
| Sep 24 | 334 | 177 | -1.2% | 109 | 46 | 107 | 34 |
Alkermes plc — questions
- Who owns Alkermes plc stock?
- 424 institutions reported Alkermes plc shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (17.4%), BAKER BROS. ADVISORS LP (6.0%), VANGUARD PORTFOLIO MANAGEMENT LLC (5.7%).
- Are Alkermes plc insiders buying or selling?
- 34 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.
Every figure on this page comes from Alkermes plc's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.