4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001104659-17-057416
CEO & Chief Scientific Officer gave up 274,386 shares (to pay taxes)
- CEO & Chief Scientific Officer acquired 315,619 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 | 2017-09-13 | Option exercise | −176,987 | $11.53 | $2,040,660 | 1,731,937 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-09-13 | Shares withheld for taxes | −153,882 | $15.86 | $2,440,569 | 1,578,055 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-09-13 | Option exercise | −138,632 | $11.53 | $1,598,427 | 1,197,337 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-09-13 | Shares withheld for taxes | −120,504 | $15.87 | $1,912,398 | 1,076,833 | I |
| Derivatives | |||||||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-09-13 | Option exercise · Employee Stock Option (right to buy) | −176,987 | 0 | D | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2017-09-13 | Option exercise · Employee Stock Option (right to buy) | −138,632 | 0 | I | ||
Loading xslF345X03/a4.xml…