Amphastar Pharmaceuticals, Inc. — Director's Dealing 2016

Jun 18, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2016-06-15

Reporting Person: Zhou Rong (EVP, Production Center)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-06-15	Common Stock	S	1551	$15.8503	Disposed	37137	Direct
2016-06-15	Common Stock	F	146	$15.76	Disposed	36991	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	99668	Indirect
Common Stock	5000	Indirect

Footnotes

F1: The reported shares were acquired under the Issuer's 2014 Employee Stock Purchase Plan.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.82 to $15.88, 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 were withheld to satisfy the reporting person's tax liability in connection with the vesting of deferred stock units, or DSUs.

F4: The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee.

F5: The shares are held of record by the reporting person's spouse.