Updated Jul 16, 2026 · Last SEC filing 2026-07-06
Alkermes plc. (ALKS) has filed 16 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-06. 6 Form 8-K material event filings were reported by ALKS in the last 90 days. 7 Form 144 notices of proposed sale were filed for ALKS stock. InsiderAlpha tracks every ALKS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Pharmaceutical Preparations (SIC 2834) |
|---|---|
| SEC CIK | 0001520262 |
| Form 4 filings (90d) | 16 |
|---|---|
| Form 8-K filings (90d) | 6 |
| Form 144 notices (90d) | 7 |
| Latest Form 4 filing | 2026-07-06 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S — Open-market sale | 2.0K | $54.03 | $110K | SEC | |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S — Open-market sale | 8.3K | $51.46 | $427K | SEC | |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S — Open-market sale | 700 | $52.13 | $36K | SEC | |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M — Option exercise | 5.0K | $19.34 | $97K | SEC | |
| Wright Christopher I | Director | S — Open-market sale | 2.0K | $45.10 | $90K | SEC | |
| Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | S — Open-market sale | 2.0K | $43.05 | $88K | SEC | |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | M — Option exercise | 5.0K | $19.34 | $97K | SEC | |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | S — Open-market sale | 9.0K | $41.67 | $375K | SEC | |
| Parisi Samuel Joseph | VP, Finance (Interim PAO) | M — Option exercise | 12.8K | $19.34 | $248K | SEC | |
| Parisi Samuel Joseph | VP, Finance (Interim PAO) | M — Option exercise | 3.4K | $20.03 | $68K | SEC | |
| Parisi Samuel Joseph | VP, Finance (Interim PAO) | S — Open-market sale | 16.2K | $42.36 | $687K | SEC | |
| GAYNOR RICHARD | Director | F — Tax withholding / forfeiture | 1.5K | $36.95 | $55K | SEC | |
| Lurker Nancy | Director | F — Tax withholding / forfeiture | 1.5K | $36.95 | $55K | SEC | |
| Lurker Nancy | Director | M — Option exercise | 6.1K | — | — | SEC | |
| LAURENCIN CATO T | Director | M — Option exercise | 6.1K | — | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Alkermes plc. (ALKS). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Hopkinson Craig C. | 10 | $1.43M |
| Wright Christopher I | 6 | $145K |
| Lurker Nancy | 5 | $55K |
| LAURENCIN CATO T | 5 | $55K |
| MCKEON BRIAN P | 5 | $55K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ALKS insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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