4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001104659-21-037886
CEO & Chief Scientific Officer gave up 37,680 shares (to pay taxes)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Zhang Jack Y. CEO & Chief Scientific Officer | 2021-03-15 | Shares withheld for taxes | −28,088 | $19.15 | $537,885 | 2,218,900 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2021-03-15 | Shares withheld for taxes | −9,592 | $19.15 | $183,687 | 1,440,369 | I |
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