SEC Form 4 · Updated Daily
ALKS
— ALKERMES PUBLIC LIMITED COMPANY OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| ELAN CORP PLC | 10%+ Owner | 7,750,000 | 2012-03-13 | S |
| Elan Science Three Ltd | 10%+ Owner | 7,750,000 | 2012-03-13 | S |
| POPS RICHARD F | Director · Officer | 1,439,970 | 2026-02-05 | A |
| LANDINE MICHAEL J | Director | 283,541 | 2024-02-23 | M |
| Jackson Blair Curtis | Officer | 245,003 | 2026-02-26 | M |
| Gaffin David Joseph | Officer | 221,388 | 2026-10-02 | S |
| Brown Iain Michael | Officer | 150,690 | 2025-02-26 | M |
| BLOOM FLOYD E | Director | 127,923 | 2018-07-16 | S |
| Cooke Shane | Director | 109,886 | 2026-05-21 | M |
| Nichols Christian Todd | Officer | 102,857 | 2026-08-17 | S |
| FRATES JAMES M | Officer | 91,828 | 2020-05-14 | M |
| ANSTICE DAVID W | Director | 84,905 | 2022-06-14 | M |
| Hopkinson Craig C. | Officer | 74,389 | 2026-09-01 | M |
| snyderman nancy lynn MD | Director | 59,867 | 2026-08-03 | M |
| Ehrich Elliot | Officer | 58,821 | 2017-05-28 | M |
| DIXON WENDY L | Director | 53,124 | 2022-06-14 | M |
| Stejbach Mark | Officer | 52,316 | 2018-03-03 | M |
| Pugh Gordon G | Officer | 45,987 | 2016-12-12 | G |
| BIBERSTEIN KATHRYN L | Officer | 41,756 | 2018-03-03 | M |
| MCKEON BRIAN P | Director | 40,011 | 2026-05-21 | M |
| HENWOOD GERALDINE | Director | 40,000 | 2014-01-15 | M |
| Wilson Frank Anders | Director | 37,226 | 2026-05-21 | M |
| GAYNOR RICHARD | Director | 37,226 | 2026-05-21 | M |
| LAURENCIN CATO T | Director | 35,244 | 2026-05-21 | M |
| Daglio David Angelo Jr. | Director | 29,245 | 2024-06-29 | M |
| Alva Emily Peterson | Director | 28,767 | 2024-06-29 | M |
| Wright Christopher I | Director | 25,680 | 2026-06-12 | S |
| Parisi Samuel Joseph | Officer | 23,934 | 2026-05-29 | M |
| Wysenski Nancy | Director | 21,786 | 2023-07-07 | M |
| Lurker Nancy | Director | 19,697 | 2026-05-21 | M |
| MITCHELL PAUL J | Director | 14,104 | 2021-05-20 | M |
| Botkin James L | Officer | 13,509 | 2013-12-04 | M |
| BREYER ROBERT A | Director | 13,260 | 2021-05-20 | M |
| Reed Joshua | Officer | 9,164 | 2026-10-08 | M |
| Robinson James A. Jr. | Director | 6,250 | 2019-04-04 | M |
| Peterson Rebecca | Officer | 5,000 | 2015-10-05 | A |
| SKALETSKY MARK B | Director | 0 | 2011-09-16 | D |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-08 | Reed Joshua | Option exercise (derivative) | 9,164 | — | 27,492 |
| 2026-10-08 | Reed Joshua | Tax withholding | 4,069 | $40.11 | 5,095 |
| 2026-10-08 | Reed Joshua | Option exercise | 9,164 | — | 9,164 |
| 2026-10-07 | Whitaker Anne Clem | Grant / award (derivative) | 17,998 | $0.00 | 17,998 |
| 2026-10-07 | Whitaker Anne Clem | Grant / award (derivative) | 7,239 | $0.00 | 7,239 |
| 2026-10-02 | Gaffin David Joseph | Open-market sale | 2,034 | $41.03 | 221,388 |
| 2026-09-03 | Gaffin David Joseph | Open-market sale | 2,034 | $48.01 | 223,422 |
| 2026-09-01 | Hopkinson Craig C. | Option exercise (derivative) | 5,000 | $0.00 | 61,276 |
| 2026-09-01 | Hopkinson Craig C. | Open-market sale | 9,000 | $46.99 | 65,389 |
| 2026-09-01 | Hopkinson Craig C. | Option exercise | 5,000 | $24.59 | 74,389 |
| 2026-08-17 | Nichols Christian Todd | Open-market sale | 664 | $49.65 | 102,193 |
| 2026-08-17 | Nichols Christian Todd | Open-market sale | 6,912 | $49.19 | 102,857 |
| 2026-08-05 | Jackson Blair Curtis | Grant / award (derivative) | 124,305 | $0.00 | 124,305 |
| 2026-08-05 | Jackson Blair Curtis | Grant / award (derivative) | 93,229 | $0.00 | 93,229 |
| 2026-08-03 | Gaffin David Joseph | Open-market sale | 2,034 | $48.58 | 225,456 |
| 2026-08-03 | Hopkinson Craig C. | Option exercise (derivative) | 4,896 | $0.00 | 66,276 |
| 2026-08-03 | Hopkinson Craig C. | Option exercise (derivative) | 104 | $0.00 | 1,252 |
| 2026-08-03 | Hopkinson Craig C. | Open-market sale | 9,000 | $48.58 | 69,389 |
| 2026-08-03 | Hopkinson Craig C. | Option exercise | 4,896 | $24.59 | 78,389 |
| 2026-08-03 | Hopkinson Craig C. | Option exercise | 104 | $19.34 | 73,493 |
| 2026-08-03 | snyderman nancy lynn MD | Option exercise (derivative) | 27,948 | $0.00 | 0 |
| 2026-08-03 | snyderman nancy lynn MD | Open-market sale | 44,472 | $50.35 | 15,395 |
| 2026-08-03 | snyderman nancy lynn MD | Option exercise | 16,524 | $46.72 | 59,867 |
| 2026-08-03 | snyderman nancy lynn MD | Option exercise | 27,948 | $46.72 | 43,343 |
| 2026-07-06 | Gaffin David Joseph | Open-market sale | 2,034 | $54.03 | 227,490 |
| 2026-07-01 | Hopkinson Craig C. | Option exercise (derivative) | 5,000 | $0.00 | 1,356 |
| 2026-07-01 | Hopkinson Craig C. | Open-market sale | 700 | $52.13 | 73,389 |
| 2026-07-01 | Hopkinson Craig C. | Open-market sale | 8,300 | $51.46 | 74,089 |
| 2026-07-01 | Hopkinson Craig C. | Option exercise | 5,000 | $19.34 | 82,389 |
| 2026-06-12 | Wright Christopher I | Open-market sale | 2,000 | $45.10 | 25,680 |
| 2026-06-04 | Gaffin David Joseph | Open-market sale | 2,034 | $43.05 | 229,524 |
| 2026-06-01 | Hopkinson Craig C. | Option exercise (derivative) | 5,000 | $0.00 | 6,356 |
| 2026-06-01 | Hopkinson Craig C. | Open-market sale | 9,000 | $41.67 | 77,389 |
| 2026-06-01 | Hopkinson Craig C. | Option exercise | 5,000 | $19.34 | 86,389 |
| 2026-05-29 | Parisi Samuel Joseph | Option exercise (derivative) | 12,825 | $0.00 | 12,826 |
| 2026-05-29 | Parisi Samuel Joseph | Option exercise (derivative) | 3,392 | $0.00 | 3,394 |
| 2026-05-29 | Parisi Samuel Joseph | Open-market sale | 16,217 | $42.36 | 7,717 |
| 2026-05-29 | Parisi Samuel Joseph | Option exercise | 12,825 | $19.34 | 23,934 |
| 2026-05-29 | Parisi Samuel Joseph | Option exercise | 3,392 | $20.03 | 11,109 |
| 2026-05-21 | Cooke Shane | Option exercise (derivative) | 6,142 | — | 0 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.