14 insiders reported 140 Form 4 transactions for Alkermes plc. (ALKS) over the past 18 months (most recent 2026-08-17). Recent activity: Nichols Christian Todd (SVP, Chief Commercial Officer) Sell 6,912 shares, Nichols Christian Todd (SVP, Chief Commercial Officer) Sell 664 shares, snyderman nancy lynn MD (Director) Buy 27,948 shares, Gaffin David Joseph (EVP, CLO, Alkermes, Inc.) Sell 2,034 shares, Hopkinson Craig C. (EVP R&D, Chief Medical Officer) Buy 104 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-17 | Nichols Christian Todd | SVP, Chief Commercial Officer | Sell | 6,912 | $339,967 |
| 2026-08-17 | Nichols Christian Todd | SVP, Chief Commercial Officer | Sell | 664 | $32,969 |
| 2026-08-03 | snyderman nancy lynn MD | Director | Buy | 27,948 | $1.3M |
| 2026-08-03 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sell | 2,034 | $98,812 |
| 2026-08-03 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Buy | 104 | $2,011 |
| 2026-08-03 | snyderman nancy lynn MD | Director | Buy | 16,524 | $772,001 |
| 2026-08-03 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Buy | 4,896 | $120,393 |
| 2026-08-03 | snyderman nancy lynn MD | Director | Sell | 44,472 | $2.2M |
| 2026-08-03 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sell | 9,000 | $437,220 |
| 2026-07-06 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sell | 2,034 | $109,897 |
| 2026-07-01 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sell | 700 | $36,492 |
| 2026-07-01 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sell | 8,300 | $427,129 |
| 2026-07-01 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Buy | 5,000 | $96,700 |
| 2026-06-12 | Wright Christopher I | Director | Sell | 2,000 | $90,200 |
| 2026-06-04 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sell | 2,034 | $87,564 |
| 2026-06-01 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Buy | 5,000 | $96,700 |
| 2026-06-01 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sell | 9,000 | $375,044 |
| 2026-05-29 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Buy | 3,392 | $67,942 |
| 2026-05-29 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Buy | 12,825 | $248,036 |
| 2026-05-29 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Sell | 16,217 | $687,007 |
| 2026-05-22 | MCKEON BRIAN P | Director | Buy | 6,142 | $0 |
| 2026-05-22 | LAURENCIN CATO T | Director | Buy | 6,142 | $0 |
| 2026-05-22 | Lurker Nancy | Director | Buy | 6,142 | $0 |
| 2026-05-22 | Wilson Frank Anders | Director | Buy | 6,142 | $0 |
| 2026-05-22 | Cooke Shane | Director | Buy | 6,142 | $0 |
Source: SEC Form 4 filings · as of 2026-08-17