Amphastar Pharmaceuticals, Inc. — Director's Dealing 2017

Oct 6, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2017-10-05

Reporting Person: Gerst Diane G. (EVP, QA & Regulatory Affairs)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-10-05	Common Stock	M	8444	$11.33	Acquired	42792	Direct
2017-10-05	Common Stock	S	8444	$18.8745	Disposed	34348	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-10-05	Employee Stock Option (right to buy)	$11.33	M	8444	Disposed	2026-03-17	Common Stock (8444)	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 September 5, 2017.

F2: Shares subject to the option vest in four equal annual installments beginning on March 17, 2017.