4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001104659-17-074113
CEO & Chief Scientific Officer gave up 830,089 shares (to pay taxes)
- CEO & Chief Scientific Officer acquired 1,012,675 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 | 2017-12-15 | Option exercise | +639,584 | $12.02 | $7,689,718 | 2,537,431 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-12-15 | Shares withheld for taxes | −524,266 | $19.30 | $10,118,334 | 2,013,165 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-12-15 | Option exercise | +373,091 | $12.02 | $4,485,673 | 1,636,469 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-12-15 | Shares withheld for taxes | −305,823 | $19.30 | $5,902,384 | 1,330,646 | I |
| Derivatives | |||||||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-12-15 | Option exercise · Employee Stock Option (right to buy) | −639,584 | 319,791 | D | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-12-15 | Option exercise · Employee Stock Option (right to buy) | −373,091 | 186,545 | I | ||
Loading xslF345X03/a4.xml…