Amphastar Pharmaceuticals, Inc. — Director's Dealing 2021

Dec 22, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2021-12-21

Reporting Person: PETERS WILLIAM J (CFO, EVP & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-21	Common Stock	M	8256	$14.40	Acquired	114298	Direct
2021-12-21	Common Stock	S	8256	$22.40	Disposed	106042	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-21	Employee Stock Option (right to buy)	$14.40	M	8256	Disposed	2024-04-21	Common Stock (8256)	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 June 7, 2021.

F2: Shares subject to the option are fully vested and immediately exercisable.