4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001104659-18-043873
CEO & Chief Scientific Officer gave up 450,484 shares (to pay taxes)
- CEO & Chief Scientific Officer acquired 506,336 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 |
|---|---|---|---|---|---|---|---|
| Zhang Jack Y. CEO & Chief Scientific Officer | 2018-07-02 | Option exercise | +319,791 | $12.02 | $3,844,847 | 2,400,410 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2018-07-02 | Shares withheld for taxes | −284,516 | $15.39 | $4,378,701 | 2,115,894 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2018-07-02 | Option exercise | +186,545 | $12.02 | $2,242,831 | 1,532,674 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2018-07-02 | Shares withheld for taxes | −165,968 | $15.39 | $2,554,248 | 1,366,706 | I |
| Derivatives | |||||||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2018-07-02 | Option exercise · Employee Stock Option (right to buy) | −319,791 | 0 | D | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2018-07-02 | Option exercise · Employee Stock Option (right to buy) | −186,545 | 0 | I | ||
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