4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0000899243-16-016854
CEO & Chief Science Officer gave up 56,912 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 | 2016-03-26 | Shares withheld for taxes | −15,711 | $11.96 | $187,904 | 1,114,191 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2016-03-27 | Shares withheld for taxes | −25,856 | $11.96 | $309,238 | 1,088,335 | D |
| Zhang Jack Y. CEO & Chief Science Officer | 2016-03-26 | Shares withheld for taxes | −6,704 | $11.96 | $80,180 | 760,962 | I |
| Zhang Jack Y. CEO & Chief Science Officer | 2016-03-27 | Shares withheld for taxes | −8,641 | $11.96 | $103,346 | 752,321 | I |
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