Amphastar Pharmaceuticals, Inc. — Director's Dealing 2021

Jun 9, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2021-06-07

Reporting Person: Petersen Floyd F. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-06-07	Common Stock	M	15827	$16.43	Acquired	89181	Direct
2021-06-07	Common Stock	S	15827	$19.3365	Disposed	73354	Direct
2021-06-07	Common Stock	A	6019	$0.00	Acquired	79373	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-06-07	Stock Option (right to buy)	$16.43	M	15827	Disposed	2021-06-09	Common Stock (15827)	Direct
2021-06-07	Stock Option (right to buy)	$19.52	A	17182	Acquired	2029-06-07	Common Stock (17182)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.99 to $19.57, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2: The reported shares are represented by restricted stock units, or RSUs, all of which vest on June 7, 2022.

F3: Shares subject to the option are fully vested and immediately exercisable.

F4: All of the shares subject to the option vest on June 7, 2022.