<SEC-DOCUMENT>0001393825-21-000007-index.html : 20210208
<SEC-HEADER>0001393825-21-000007.hdr.sgml : 20210208
<ACCEPTANCE-DATETIME>20210208164705
ACCESSION NUMBER:		0001393825-21-000007
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210208
DATE AS OF CHANGE:		20210208

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-80900
		FILM NUMBER:		21602035

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Hudson Bay Capital Management LP
		CENTRAL INDEX KEY:			0001393825
		IRS NUMBER:				371511173
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		777 THIRD AVE., 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		212-571-1244

	MAIL ADDRESS:	
		STREET 1:		777 THIRD AVE., 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Hudson Bay Capital Management, L.P.
		DATE OF NAME CHANGE:	20070320
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>alt_13ga.htm
<DESCRIPTION>ALT 13GA
<TEXT>
Document 1 - file: alt_13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>