<SEC-DOCUMENT>0001047469-14-005387-index.html : 20140624
<SEC-HEADER>0001047469-14-005387.hdr.sgml : 20140624
<ACCEPTANCE-DATETIME>20140605172151
ACCESSION NUMBER:		0001047469-14-005387
CONFORMED SUBMISSION TYPE:	S-1/A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20140605
DATE AS OF CHANGE:		20140605

FILER:

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

	FILING VALUES:
		FORM TYPE:		S-1/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-196097
		FILM NUMBER:		14894442

	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>S-1/A
<SEQUENCE>1
<FILENAME>a2220360zs-1a.htm
<DESCRIPTION>S-1/A
<TEXT>
Document 1 - file: a2220360zs-1a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.1
<SEQUENCE>2
<FILENAME>a2220360zex-4_1.htm
<DESCRIPTION>EX-4.1
<TEXT>
Document 2 - file: a2220360zex-4_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>a2220360zex-23_1.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: a2220360zex-23_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g5198.jpg
<DESCRIPTION>G5198.JPG
<TEXT>
Document 4 - file: g5198.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g453168.jpg
<DESCRIPTION>G453168.JPG
<TEXT>
Document 5 - file: g453168.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g927383.jpg
<DESCRIPTION>G927383.JPG
<TEXT>
Document 6 - file: g927383.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g264412lai001.gif
<DESCRIPTION>G264412LAI001.GIF
<TEXT>
Document 7 - file: g264412lai001.gif

</DOCUMENT>
</SEC-DOCUMENT>