Amphastar Pharmaceuticals, Inc. — Director's Dealing 2020

Jun 5, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2020-06-03

Reporting Person: Zhou Rong (EVP, Production Center)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-06-03	Common Stock	M	11082	$11.41	Acquired	93287	Direct
2020-06-03	Common Stock	S	13163	$18.8162	Disposed	80124	Direct
2020-06-04	Common Stock	M	8918	$11.41	Acquired	89042	Direct
2020-06-04	Common Stock	S	9806	$19.19	Disposed	79236	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-06-03	Employee Stock Option (right to buy)	$11.41	M	11082	Disposed	2021-03-08	Common Stock (11082)	Direct
2020-06-04	Employee Stock Option (right to buy)	$11.41	M	8918	Disposed	2021-03-08	Common Stock (8918)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	99668	Indirect
Common Stock	5000	Indirect

Footnotes

F1: Includes 1,314 shares acquired under the Issuer's 2014 Employee Stock Purchase Plan on May 31, 2020.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.7903 to $18.915, 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 shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee.

F4: The shares are held of record by the reporting person's spouse.

F5: Shares subject to the option are fully vested and immediately exercisable.