Amphastar Pharmaceuticals, Inc. — Director's Dealing 2015

Nov 24, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2015-11-20

Reporting Person: Petersen Floyd F. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-11-20	Common Stock	M	38462	$11.68	Acquired	88760	Direct
2015-11-20	Common Stock	S	31529	$14.2888	Disposed	57231	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-11-20	Stock Option (right to buy)	$11.68	M	38462	Disposed	2015-12-18	Common Stock (38462)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.27 to $14.38, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2: Shares subject to the option are fully vested and immediately exercisable.