Amphastar Pharmaceuticals, Inc. — Director's Dealing 2018

Jul 3, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2018-07-02

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-07-02	Common Stock	M	319791	$12.023	Acquired	2400410	Direct
2018-07-02	Common Stock	F	284516	$15.39	Disposed	2115894	Direct
2018-07-02	Common Stock	M	186545	$12.023	Acquired	1532674	Indirect
2018-07-02	Common Stock	F	165968	$15.39	Disposed	1366706	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-07-02	Employee Stock Option (right to buy)	$12.023	M	319791	Disposed	2018-07-05	Common Stock (319791)	Direct
2018-07-02	Employee Stock Option (right to buy)	$12.023	M	186545	Disposed	2018-07-05	Common Stock (186545)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	7461594	Indirect
Common Stock	5000	Indirect
Common Stock	200000	Indirect

Footnotes

F1: The securities are held of record by Mary Z. Luo. The reporting persons are husband and wife.

F2: The shares are held of record by Applied Physics & Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust (the "BLZ Trust") are the sole owners.

F3: The shares are held of record in an account for the benefit of the reporting persons' son. The reporting persons disclaim beneficial ownership of these shares, and the inclusion of these shares in this report should not be deemed an admission of beneficial ownership of any such shares for purposes of Section 16, or for any other purpose.

F4: The shares are held of record by the BLZ Trust. The reporting persons disclaim beneficial ownership of these shares, and the inclusion of these shares in this report should not be deemed an admission of beneficial ownership of any such shares for purposes of Section 16, or for any other purpose.

F5: Shares subject to the option are fully vested and immediately exercisable.