<SEC-DOCUMENT>0001104659-19-012641-index.html : 20190304
<SEC-HEADER>0001104659-19-012641.hdr.sgml : 20190304
<ACCEPTANCE-DATETIME>20190304204311
ACCESSION NUMBER:		0001104659-19-012641
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190205
FILED AS OF DATE:		20190304
DATE AS OF CHANGE:		20190304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Zhou Rong
		CENTRAL INDEX KEY:			0001645326

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36509
		FILM NUMBER:		19656315

	MAIL ADDRESS:	
		STREET 1:		C/O AMPHASTAR PHARMACEUTICALS INC.
		STREET 2:		11570 SIXTH STREET
		CITY:			RANCHO CUCAMONGA
		STATE:			CA
		ZIP:			91730

ISSUER:		

	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

	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>4/A
<SEQUENCE>1
<FILENAME>a4a.xml
<DESCRIPTION>4/A
<TEXT>
Document 1 - file: a4a.html

Document 1 - RAW XML: a4a.xml

</DOCUMENT>
</SEC-DOCUMENT>