# Alkermes plc. (ALKS) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/alks

> 16 non-derivative transactions: 0 purchases, 10 sales ($4.2M). CIK 1520262.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-03 | Gaffin David Joseph | Officer | S | 2034.0 | 48.01 | 223422.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000120/0001520262-26-000120-index.htm |
| 2026-09-01 | Hopkinson Craig C. | Officer | S | 9000.0 | 46.99 | 65389.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000118/0001520262-26-000118-index.htm |
| 2026-09-01 | Hopkinson Craig C. | Officer | M | 5000.0 | 24.59 | 74389.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000118/0001520262-26-000118-index.htm |
| 2026-08-17 | Nichols Christian Todd | Officer | S | 664.0 | 49.65 | 102193.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000116/0001520262-26-000116-index.htm |
| 2026-08-17 | Nichols Christian Todd | Officer | S | 6912.0 | 49.19 | 102857.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000116/0001520262-26-000116-index.htm |
| 2026-08-03 | Gaffin David Joseph | Officer | S | 2034.0 | 48.58 | 225456.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000109/0001520262-26-000109-index.htm |
| 2026-08-03 | Hopkinson Craig C. | Officer | S | 9000.0 | 48.58 | 69389.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000110/0001520262-26-000110-index.htm |
| 2026-08-03 | Hopkinson Craig C. | Officer | M | 4896.0 | 24.59 | 78389.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000110/0001520262-26-000110-index.htm |
| 2026-08-03 | Hopkinson Craig C. | Officer | M | 104.0 | 19.34 | 73493.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000110/0001520262-26-000110-index.htm |
| 2026-08-03 | snyderman nancy lynn MD | Director | S | 44472.0 | 50.35 | 15395.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000111/0001520262-26-000111-index.htm |
| 2026-08-03 | snyderman nancy lynn MD | Director | M | 16524.0 | 46.72 | 59867.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000111/0001520262-26-000111-index.htm |
| 2026-08-03 | snyderman nancy lynn MD | Director | M | 27948.0 | 46.72 | 43343.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000111/0001520262-26-000111-index.htm |
| 2026-07-06 | Gaffin David Joseph | Officer | S | 2034.0 | 54.03 | 227490.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000105/0001520262-26-000105-index.htm |
| 2026-07-01 | Hopkinson Craig C. | Officer | S | 700.0 | 52.13 | 73389.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000103/0001520262-26-000103-index.htm |
| 2026-07-01 | Hopkinson Craig C. | Officer | S | 8300.0 | 51.46 | 74089.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000103/0001520262-26-000103-index.htm |
| 2026-07-01 | Hopkinson Craig C. | Officer | M | 5000.0 | 19.34 | 82389.0 | https://www.sec.gov/Archives/edgar/data/1520262/000152026226000103/0001520262-26-000103-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

---
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.
API: https://sec-api.dev/docs · ChatGPT app: https://chatgpt.com/plugins/plugin_asdk_app_6ae0ef2436ac8191941dae8a4d732669 · Free key: https://sec-api.dev/sign-up