Amphastar Pharmaceuticals, Inc. — Director's Dealing 2014

Aug 20, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Amphastar Pharmaceuticals, Inc. (AMPH)
CIK: 0001297184
Period of Report: 2014-08-15

Reporting Person: PRINS RICHARD K (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-08-15	Common Stock	P	1400	$10.00	Acquired	33451	Direct
2014-08-18	Common Stock	P	2600	$10.03	Acquired	36051	Direct

Footnotes

F1: This includes 4,093 shares underlying deferred stock units that were granted on 12/20/2013 and fully vest on the first anniversary of the grant date. Such shares were previously reported on a separate line on the Reporting Person's Form 3 filed 6/24/14 but are now consolidated with the Reporting Person's other direct holdings for convenience.

F2: The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $10.01 to $10.05, 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 acquired at each separate price within the ranges set forth in this footnote.