4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001209191-15-051663
CEO & Chief Science Officer sold 193,758 shares at an average $16.43 ($3,183,419)
- CEO & Chief Science Officer acquired 216,117 shares (option exercise)
- CEO & Chief Science Officer gave up 29,518 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 Science Officer | 2015-03-27 | Shares withheld for taxes | −20,877 | $15.43 | $322,132 | 911,636 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-05 | Option exercise | +48,980 | $12.97 | $635,271 | 960,616 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-05 | Sale | −44,149 | $16.46 | $726,878 | 916,467 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-08 | Option exercise | +30,066 | $12.97 | $389,956 | 946,533 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-08 | Sale | −27,020 | $16.61 | $448,910 | 919,513 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-09 | Option exercise | +28,324 | $12.97 | $367,362 | 947,837 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-09 | Sale | −25,700 | $16.24 | $417,255 | 922,137 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-03-27 | Shares withheld for taxes | −8,641 | $15.43 | $133,331 | 661,666 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-05 | Option exercise | +50,162 | $12.97 | $650,601 | 711,828 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-05 | Sale | −43,989 | $16.47 | $724,310 | 667,839 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-08 | Option exercise | +30,152 | $12.97 | $391,071 | 697,991 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-08 | Sale | −27,100 | $16.61 | $450,096 | 670,891 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-09 | Option exercise | +28,433 | $12.97 | $368,776 | 699,324 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-09 | Sale | −25,800 | $16.12 | $415,971 | 673,524 | I |
| Derivatives | |||||||
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-05 | Option exercise · Employee Stock Option (right to buy) | −48,980 | 226,020 | D | ||
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-08 | Option exercise · Employee Stock Option (right to buy) | −30,066 | 195,954 | D | ||
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-09 | Option exercise · Employee Stock Option (right to buy) | −28,324 | 167,630 | D | ||
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-05 | Option exercise · Employee Stock Option (right to buy) | −50,162 | 134,838 | I | ||
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-08 | Option exercise · Employee Stock Option (right to buy) | −30,152 | 104,686 | I | ||
| Zhang Jack Y. CEO & Chief Science Officer | 2015-06-09 | Option exercise · Employee Stock Option (right to buy) | −28,433 | 76,253 | I | ||
| Open-market sales · 193,758 sh · avg $16.43 · $3,183,419 | |||||||
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