Alkermes plc. insider trading
This tab shows only the shares insiders bought or sold on the open market in the last twelve months (Form 4 codes P and S). Grants, option exercises, shares held back for tax and gifts are left out on purpose, so what is left is insiders trading at the market price like anyone else.
In the last twelve months insiders at Alkermes plc. filed 34 open-market sales worth $10.6 million and 0 open-market purchases, on Form 4 with the SEC. The latest: Gaffin David Joseph, EVP, CLO, Alkermes, Inc., sold 2,034 shares at $41.03 on 2 October 2026, filed 2 October 2026.
| Traded | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2 October 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $41.03 | $83,455 | Form 4 |
| 3 September 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $48.01 | $97,652 | Form 4 |
| 1 September 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $46.99 | $422,874 | Form 4 |
| 17 August 2026 | Nichols Christian Todd | SVP, Chief Commercial Officer | Sale | 6,912 | $49.19 | $339,967 | Form 4 |
| 17 August 2026 | Nichols Christian Todd | SVP, Chief Commercial Officer | Sale | 664 | $49.65 | $32,969 | Form 4 |
| 3 August 2026 | Snyderman Nancy Lynn Md | Director | Sale | 44,472 | $50.35 | $2.2 million | Form 4 |
| 3 August 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $48.58 | $437,220 | Form 4 |
| 3 August 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $48.58 | $98,812 | Form 4 |
| 6 July 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $54.03 | $109,897 | Form 4 |
| 1 July 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 8,300 | $51.46 | $427,129 | Form 4 |
| 1 July 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 700 | $52.13 | $36,492 | Form 4 |
| 12 June 2026 | Wright Christopher I | Director | Sale | 2,000 | $45.10 | $90,200 | Form 4 |
| 4 June 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $43.05 | $87,564 | Form 4 |
| 1 June 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $41.67 | $375,044 | Form 4 |
| 29 May 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Sale | 16,217 | $42.36 | $687,007 | Form 4 |
| 4 May 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $33.20 | $67,529 | Form 4 |
| 1 May 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $33.40 | $300,560 | Form 4 |
| 6 April 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $34.57 | $70,315 | Form 4 |
| 1 April 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $35.51 | $319,604 | Form 4 |
| 3 March 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $29.76 | $60,532 | Form 4 |
| 2 March 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Sale | 6,890 | $29.29 | $201,808 | Form 4 |
| 2 March 2026 | Nichols Christian Todd | SVP, Chief Commercial Officer | Sale | 6,000 | $30.00 | $180,000 | Form 4 |
| 2 March 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $29.72 | $267,485 | Form 4 |
| 2 March 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sale | 2,034 | $29.29 | $59,576 | Form 4 |
| 2 February 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 5,000 | $34.24 | $171,224 | Form 4 |
| 2 February 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 4,000 | $33.54 | $134,160 | Form 4 |
| 2 February 2026 | Cooke Shane | Director | Sale | 29,087 | $34.34 | $998,795 | Form 4 |
| 2 February 2026 | Cooke Shane | Director | Sale | 32,113 | $34.78 | $1.1 million | Form 4 |
| 8 January 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 5,000 | $30.00 | $150,005 | Form 4 |
| 2 January 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 4,000 | $28.00 | $112,000 | Form 4 |
| 3 December 2025 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 3,748 | $30.00 | $112,447 | Form 4 |
| 1 December 2025 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 4,000 | $29.30 | $117,200 | Form 4 |
| 3 November 2025 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $30.38 | $273,442 | Form 4 |
| 15 October 2025 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Sale | 9,000 | $31.53 | $283,776 | Form 4 |
A filing with several lines appears once per line.
Source
Form 4 filings on EDGAR for Alkermes plc.: the company's filing index.
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