Amphastar Pharmaceuticals, Inc. — Director's Dealing 2016

Sep 28, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2016-09-26

Reporting Person: Shandell Jason B. (Director, President and General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-09-26	Common Stock	M	56996	$10.93	Acquired	259957	Direct
2016-09-26	Common Stock	S	56996	$19.4973	Disposed	202961	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-09-26	Employee Stock Option (right to buy)	$10.93	M	56996	Disposed	2023-07-05	Common Stock (56996)	Direct

Footnotes

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2016.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.26 to $20.11 inclusive. The reporting person undertake 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.

F3: Shares subject to the option vest in four equal annual installments beginning on July 5, 2014.