Amphastar Pharmaceuticals, Inc. — Director's Dealing 2021

Jul 28, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2021-07-26

Reporting Person: Zhou Rong (EVP, Production Center)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-07-26	Common Stock	M	6000	$10.48	Acquired	92244	Direct
2021-07-26	Common Stock	S	6000	$20.87	Disposed	86244	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-07-26	Employee Stock Option (right to buy)	$10.48	M	6000	Disposed	2022-11-07	Common Stock (6000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	99668	Indirect
Common Stock	5000	Indirect

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 June 16, 2021.

F2: The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee.

F3: The shares are held of record by the reporting person's spouse.

F4: Shares subject to the option are fully vested and immediately exercisable.