4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001263136-26-000012
CFO, EVP & TREASURER sold 8,180 shares at $22.48 ($183,886)
- CFO, EVP & TREASURER acquired 5,053 shares (option exercise)
- Traded under a Rule 10b5-1 plan
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| PETERS WILLIAM J CFO, EVP & TREASURER | 2026-08-07 | Option exercise 10b5-1 | +5,053 | $19.79 | $99,999 | 181,026 | D |
| PETERS WILLIAM J CFO, EVP & TREASURER | 2026-08-07 | Sale 10b5-1 | −8,180 | $22.48 | $183,886 | 172,846 | D |
| Derivatives | |||||||
| PETERS WILLIAM J CFO, EVP & TREASURER | 2026-08-07 | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −5,053 | 0 | D | ||
| Open-market sales · 8,180 sh · avg $22.48 · $183,886 | |||||||
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