<SEC-DOCUMENT>0001193125-18-289729-index.html : 20181001
<SEC-HEADER>0001193125-18-289729.hdr.sgml : 20181001
<ACCEPTANCE-DATETIME>20181001171618
ACCESSION NUMBER:		0001193125-18-289729
CONFORMED SUBMISSION TYPE:	424B4
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20181001
DATE AS OF CHANGE:		20181001

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Altimmune, Inc.
		CENTRAL INDEX KEY:			0001326190
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				202726770
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B4
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-226441
		FILM NUMBER:		181098455

	BUSINESS ADDRESS:	
		STREET 1:		910 CLOPPER ROAD
		STREET 2:		SUITE 201S
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20878
		BUSINESS PHONE:		2406541450

	MAIL ADDRESS:	
		STREET 1:		910 CLOPPER ROAD
		STREET 2:		SUITE 201S
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20878

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PHARMATHENE, INC
		DATE OF NAME CHANGE:	20071016

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEALTHCARE ACQUISITION CORP
		DATE OF NAME CHANGE:	20050505
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B4
<SEQUENCE>1
<FILENAME>d572967d424b4.htm
<DESCRIPTION>424B4
<TEXT>
Document 1 - file: d572967d424b4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g572967g51h14.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g572967g51h14.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g572967g56h00.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g572967g56h00.jpg

</DOCUMENT>
</SEC-DOCUMENT>