4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001047579-25-000006
Director sold 4,179 shares at $27.10 ($113,253)
- Director acquired 4,179 shares (option exercise)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| PRINS RICHARD K Director | 2025-11-25 | Option exercise | +4,179 | $16.69 | $69,748 | 39,362 | D |
| PRINS RICHARD K Director | 2025-11-25 | Sale | −4,179 | $27.10 | $113,253 | 35,183 | D |
| Derivatives | |||||||
| PRINS RICHARD K Director | 2025-11-25 | Option exercise · Stock Option (right to buy) | −4,179 | 0 | D | ||
| Open-market sales · 4,179 sh · avg $27.10 · $113,253 | |||||||
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