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: Koo Richard (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-06-07	Common Stock	A	6019	$0.00	Acquired	259289	Direct

Derivative Transactions

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

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10000	Indirect

Footnotes

F1: The reported shares are represented by restricted stock units, or RSUs, all of which vest on June 7, 2022.

F2: The reported shares are held directly by Richard Y. Koo, a sole proprietorship, for which the Reporting Person is the sole owner.

F3: All of the shares subject to the option vest on June 7, 2022.