Amphastar Pharmaceuticals, Inc. — Director's Dealing 2016

Feb 4, 2016

SEC Form 4/A — Form 4/A

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2015-06-15

Reporting Person: Zhang Jack Y. (Director, CEO & Chief Science Officer, 10% Owner)
Reporting Person: Luo Mary Z. (Director, COO, Chief Scientist, Chairman, 10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	936955	Direct

Footnotes

F1: On June 12, 2015,the reporting person mistakenly filed a report on Form 4 which reported withholding of shares to satisfy the reporting person's tax liability in connection with the option exercise on June 15, 2015. This reported transaction did not occur and no shares were withheld in connection with the option exercise. Following the reportable transactions, the reporting person directly owned 936,955 shares of common stock. The error in column 5 of Table I also appears in subsequent Forms 4 filed through December 11, 2015.