<SEC-DOCUMENT>0001297184-22-000015-index.html : 20220414
<SEC-HEADER>0001297184-22-000015.hdr.sgml : 20220414
<ACCEPTANCE-DATETIME>20220414162716
ACCESSION NUMBER:		0001297184-22-000015
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20220610
FILED AS OF DATE:		20220414
DATE AS OF CHANGE:		20220414

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Amphastar Pharmaceuticals, Inc.
		CENTRAL INDEX KEY:			0001297184
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				330702205
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36509
		FILM NUMBER:		22827616

	BUSINESS ADDRESS:	
		STREET 1:		11570 SIXTH STREET
		CITY:			RANCHO CUCAMONGA
		STATE:			CA
		ZIP:			91730
		BUSINESS PHONE:		909-980-9484

	MAIL ADDRESS:	
		STREET 1:		11570 SIXTH STREET
		CITY:			RANCHO CUCAMONGA
		STATE:			CA
		ZIP:			91730
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>amph-20220610xdef14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: amph-20220610xdef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>amph-20220610xdef14a018.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: amph-20220610xdef14a018.jpg

</DOCUMENT>
</SEC-DOCUMENT>