Amphastar Pharmaceuticals, Inc. — Director's Dealing 2018

Nov 13, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2018-11-08

Reporting Person: Liawatidewi Yakob (SVP Corp Admin Center)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-11-08	Common Stock	M	6000	$11.41	Acquired	46763	Direct
2018-11-08	Common Stock	S	6000	$20.50	Disposed	40763	Direct
2018-11-09	Common Stock	M	4903	$14.23	Acquired	45666	Direct
2018-11-09	Common Stock	M	4904	$14.40	Acquired	50570	Direct
2018-11-09	Common Stock	S	11808	$21.2077	Disposed	38762	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-11-08	Stock Option (right to buy)	$11.41	M	6000	Disposed	2021-03-08	Common Stock (6000)	Direct
2018-11-09	Stock Option (right to buy)	$14.23	M	4903	Disposed	2021-12-22	Common Stock (4903)	Direct
2018-11-09	Stock Option (right to buy)	$14.40	M	4904	Disposed	2024-04-14	Common Stock (4904)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10369	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 4, 2018.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.00 to $21.50 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.

F3: The reported shares are held of record by the Yakob and Sunmoon Trust dated July 25, 2013 for which the reporting person serves as a trustee.

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