Alkermes plc. (ALKS) Insider Trading
Directors, officers and holders of more than 10% of ALKS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 404 transactions on file: 0 with code P, 15 with code S and 35 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 8, 2026 | Reed Joshua | SVP, Chief Financial Officer | M Exercise | 9,164 | Not measured | Not measured |
| Oct 8, 2026 | Reed Joshua | SVP, Chief Financial Officer | F Tax Payment | 4,069 | $40.11 | $163,208 |
| Oct 8, 2026 | Reed Joshua | SVP, Chief Financial Officer | M Exercise | 9,164 | Not measured | Not measured |
| Oct 7, 2026 | Whitaker Anne Clem | Director | A Award | 7,239 | Not measured | Not measured |
| Oct 7, 2026 | Whitaker Anne Clem | Director | A Award | 17,998 | Not measured | Not measured |
| Oct 2, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S Sale | 2,034 | $41.03 | $83,455 |
| Sep 3, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S Sale | 2,034 | $48.01 | $97,652 |
| Sep 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S Sale | 9,000 | $46.99 | $422,874 |
| Sep 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 5,000 | Not measured | Not measured |
| Sep 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 5,000 | $24.59 | $122,950 |
| Aug 17, 2026 | Nichols Christian Todd | SVP, Chief Commercial Officer | S Sale | 6,912 | $49.19 | $339,967 |
| Aug 17, 2026 | Nichols Christian Todd | SVP, Chief Commercial Officer | S Sale | 664 | $49.65 | $32,969 |
| Aug 5, 2026 | Jackson Blair Curtis | President & CEO, Alkermes plc | A Award | 93,229 | Not measured | Not measured |
| Aug 5, 2026 | Jackson Blair Curtis | President & CEO, Alkermes plc | A Award | 124,305 | Not measured | Not measured |
| Aug 3, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 104 | Not measured | Not measured |
| Aug 3, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S Sale | 9,000 | $48.58 | $437,220 |
| Aug 3, 2026 | snyderman nancy lynn MD | Director | M Exercise | 27,948 | $46.72 | $1,305,731 |
| Aug 3, 2026 | snyderman nancy lynn MD | Director | M Exercise | 16,524 | Not measured | Not measured |
| Aug 3, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 104 | $19.34 | $2,011 |
| Aug 3, 2026 | snyderman nancy lynn MD | Director | S Sale | 44,472 | $50.35 | $2,239,076 |
| Aug 3, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S Sale | 2,034 | $48.58 | $98,812 |
| Aug 3, 2026 | snyderman nancy lynn MD | Director | M Exercise | 16,524 | $46.72 | $772,001 |
| Aug 3, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 4,896 | $24.59 | $120,393 |
| Aug 3, 2026 | snyderman nancy lynn MD | Director | M Exercise | 27,948 | Not measured | Not measured |
| Aug 3, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 4,896 | Not measured | Not measured |
| Jul 6, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S Sale | 2,034 | $54.03 | $109,897 |
| Jul 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 5,000 | Not measured | Not measured |
| Jul 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S Sale | 700 | $52.13 | $36,492 |
| Jul 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 5,000 | $19.34 | $96,700 |
| Jul 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S Sale | 8,300 | $51.46 | $427,129 |
| Jun 12, 2026 | Wright Christopher I | Director | S Sale | 2,000 | $45.10 | $90,200 |
| Jun 4, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S Sale | 2,034 | $43.05 | $87,564 |
| Jun 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 5,000 | Not measured | Not measured |
| Jun 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M Exercise | 5,000 | $19.34 | $96,700 |
| Jun 1, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S Sale | 9,000 | $41.67 | $375,044 |
| May 29, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | S Sale | 16,217 | $42.36 | $687,007 |
| May 29, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | M Exercise | 3,392 | Not measured | Not measured |
| May 29, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | M Exercise | 12,825 | Not measured | Not measured |
| May 29, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | M Exercise | 3,392 | $20.03 | $67,942 |
| May 29, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | M Exercise | 12,825 | $19.34 | $248,036 |
| May 21, 2026 | Cooke Shane | Director | F Tax Payment | 3,207 | $36.95 | $118,499 |
| May 21, 2026 | Wilson Frank Anders | Director | M Exercise | 6,142 | Not measured | Not measured |
| May 21, 2026 | Cooke Shane | Director | M Exercise | 6,142 | Not measured | Not measured |
| May 21, 2026 | LAURENCIN CATO T | Director | M Exercise | 6,142 | Not measured | Not measured |
| May 21, 2026 | GAYNOR RICHARD | Director | M Exercise | 6,142 | Not measured | Not measured |
| May 21, 2026 | MCKEON BRIAN P | Director | F Tax Payment | 1,475 | $36.95 | $54,501 |
| May 21, 2026 | GAYNOR RICHARD | Director | M Exercise | 6,142 | Not measured | Not measured |
| May 21, 2026 | snyderman nancy lynn MD | Director | M Exercise | 6,142 | Not measured | Not measured |
| May 21, 2026 | GAYNOR RICHARD | Director | F Tax Payment | 1,475 | $36.95 | $54,501 |
| May 21, 2026 | MCKEON BRIAN P | Director | M Exercise | 6,142 | Not measured | Not measured |
The full Form 4 history is on the ALKS company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.