Amphastar Pharmaceuticals, Inc. - Director's Dealing 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2020-06-08

Reporting Person: Liawatidewi Yakob (SVP Corp Admin Center)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-06-04	Common Stock	A	3048	$0.00	Acquired	53529	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-06-04	Employee Stock Option (right to buy)	$19.19	A	7091	Acquired	2030-06-04	Common Stock (7091)	Direct

Security	Shares	Ownership
Common Stock	2459	Indirect

F1: The reported shares are represented by RSUs which vest in four equal annual installments beginning on June 4, 2021.

F2: Includes 1,313 shares acquired under the Issuer's 2014 Employee Stock Purchase Plan on May 31, 2020.

F3: The reported shares are held of record by the Yakob and Sunmoon Trust dated July 25, 2013 for which the reporting person serves as a trustee.

F4: Shares subject to the option vest in four equal annual installments beginning on June 4, 2021.