Insider · CIK 0001047579
Richard K Prins
Files at: AMPH, IGC. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 SForm 4 → | Aug 12, 6:14 pm EDT | Amphastar Pharmaceuticals, Inc.AMPH | 7,973 | $20.30 | $161,852 | 29,625 | −21.2% |
Reported trades — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.