Companies / Alkermes plc.
Alkermes plc.
Nasdaq: ALKSForeign · IFRSCIK 1520262DUBLIN 4
Financials · FY2025
Ownership
167.8M shares outstanding · as of Jul 23, 2026
Ownership
| Institutions | 109.82% | 184,234,844 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 9
View all →| Insider | % of shares | Shares |
|---|---|---|
Cooke ShaneDirector | — | — |
Gaffin David JosephEVP, CLO, Alkermes, Inc. | — | — |
Hopkinson Craig C.EVP R&D, Chief Medical Officer | — | — |
Jackson Blair CurtisEVP, Chief Operating Officer · Director | — | — |
McKeon Brian PDirector | — | — |
Nichols Christian ToddSVP, Chief Commercial Officer | — | — |
Parisi Samuel JosephVP, Finance (Interim PAO) | — | — |
Pops Richard FCEODirector and CEO, Alkermes plc · Director | — | — |
Reed JoshuaSVP, Chief Financial Officer | — | — |
Institutional holders 379
View all →| Holder | Value | % of shares |
|---|---|---|
| $1.53B | 17.43% | |
| $503.85M | 10.73% | |
| $479.97M | 5.46% | |
| $354.03M | 5.97% | |
| $217.83M | 3.67% | |
| $166.67M | 3.55% | |
| $147.91M | 2.49% | |
| $145.06M | 3.09% | |
| $123.47M | 2.63% | |
| $104.98M | 1.77% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Feb 5, 2026 | Pops Richard F CEO | Other | Ordinary Shares | $2.09M | -62K -4.32% | 1,377,740 0.82% of shares | low |
| Feb 2, 2026 | Cooke Shane Director | Exercise | Ordinary Shares | $1.94M | +61K +58.99% | 164,944 0.10% of shares | low |
| Feb 2, 2026 | Cooke Shane Director | Sell | Ordinary Shares | $1.12M | -32K -23.64% | 103,744 0.06% of shares | medium |
| Feb 2, 2026 | Cooke Shane Director | Sell | Ordinary Shares | $998.8K | -29K -17.63% | 135,857 0.08% of shares | medium |
| Feb 5, 2026 | Jackson Blair Curtis Executive | Other | Ordinary Shares | $289.4K | -9K -3.75% | 221,552 0.13% of shares | low |
| Mar 2, 2026 | Hopkinson Craig C. Executive | Sell | Ordinary Shares | $267.5K | -9K -9.15% | 89,389 0.05% of shares | medium |
| Feb 5, 2026 | Gaffin David Joseph Executive | Other | Ordinary Shares | $255.6K | -8K -3.30% | 223,107 0.13% of shares | low |
| Feb 5, 2026 | Hopkinson Craig C. Executive | Other | Ordinary Shares | $250.1K | -7K -8.97% | 75,638 0.05% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Baker Bros. Advisors LP | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| ALKS | — | G01767105 |