Insider · CIK 0001379941
Howard Lee
Files at: AMPH. On EDGAR ↗
Reported trades — common stock
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 1, 2026 AForm 4 → | Jun 3, 9:20 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 17,365 | — | — | 17,365 | — | |
| Dec 4, 2018 MForm 4 → | Dec 7, 6:36 pm EST | Amphastar Pharmaceuticals, Inc.AMPH | 29,278 | — | — | 0 | — | |
| Jun 7, 2018 AForm 4 → | Jun 11, 8:08 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 16,679 | — | — | 16,679 | — | |
| Jun 8, 2017 AForm 4 → | Jun 12, 7:59 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 20,291 | — | — | 20,291 | — | |
| Nov 14, 2016 MForm 4 → | Nov 16, 4:30 pm EST | Amphastar Pharmaceuticals, Inc.AMPH | 37,994 | — | — | 0 | — | |
| Sep 1, 2016 MForm 4 → | Sep 2, 7:05 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 10,381 | — | — | 0 | — | |
| Jun 9, 2016 AForm 4 → | Jun 13, 8:25 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 25,827 | — | — | 25,827 | — | |
| Dec 15, 2015 MForm 4 → | Dec 17, 7:20 pm EST | Amphastar Pharmaceuticals, Inc.AMPH | 38,462 | — | — | 0 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:18 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 47,782 | — | — | 47,782 | — |