4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001104659-19-015712
CEO & Chief Scientific Officer gave up 772,095 shares (to pay taxes)
- CEO & Chief Scientific Officer acquired 739,520 shares (option exercise)
- CEO & Chief Scientific Officer acquired 139,890 shares (grant or award)
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 | 2019-03-15 | Option exercise | +514,783 | $15.84 | $8,154,163 | 2,587,100 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Shares withheld for taxes | −461,097 | $20.23 | $9,327,992 | 2,126,003 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Grant or award | +98,368 | 2,224,371 | D | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Shares withheld for taxes | −17,205 | $20.23 | $348,057 | 2,207,166 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-16 | Shares withheld for taxes | −27,476 | $20.23 | $555,839 | 2,179,690 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-17 | Shares withheld for taxes | −32,374 | $20.23 | $654,926 | 2,147,316 | D |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Option exercise | +224,737 | $15.84 | $3,559,834 | 1,591,443 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Shares withheld for taxes | −200,853 | $20.23 | $4,063,256 | 1,390,590 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Grant or award | +41,522 | 1,432,112 | I | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Shares withheld for taxes | −7,317 | $20.23 | $148,023 | 1,424,795 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-16 | Shares withheld for taxes | −11,832 | $20.23 | $239,361 | 1,412,963 | I |
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-17 | Shares withheld for taxes | −13,941 | $20.23 | $282,026 | 1,399,022 | I |
| Derivatives | |||||||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Option exercise · Employee Stock Option (right to buy) | −514,783 | 0 | D | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Grant or award · Employee Stock Option (right to buy) | +262,182 | 262,182 | D | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Option exercise · Employee Stock Option (right to buy) | −224,737 | 0 | I | ||
| Zhang Jack Y. CEO & Chief Scientific Officer | 2019-03-15 | Grant or award · Employee Stock Option (right to buy) | +110,671 | 110,671 | I | ||
Loading xslF345X03/a4.xml…