Amphastar Pharmaceuticals, Inc. — Director's Dealing 2016

Mar 22, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2016-03-17

Reporting Person: Zhou Rong (EVP, Production)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-03-17	Common Stock	A	11473	$0.00	Acquired	37705	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-03-17	Employee Stock Option (right to buy)	$11.33	A	34438	Acquired	2026-03-17	Common Stock (34438)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	99668	Indirect
Common Stock	5000	Indirect

Footnotes

F1: The reported shares are represented by deferred stock units, or DSUs, which vest in four equal annual installments beginning on March 17, 2017.

F2: Includes 772 shares acquired under the Issuer's 2014 Employee Stock Purchase Plan.

F3: The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee.

F4: The shares are held of record by the reporting person's spouse.

F5: Shares subject to the option vest in four equal annual installments beginning on March 17, 2017.