Amphastar Pharmaceuticals, Inc. — Director's Dealing 2016

Jun 14, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2016-06-09

Reporting Person: Koo Richard (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-06-09	Common Stock	A	6086	$0.00	Acquired	229494	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-06-09	Stock Option (right to buy)	$16.43	A	25827	Acquired	2021-06-09	Common Stock (25827)	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 9, 2017.

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 9, 2017.