<SEC-DOCUMENT>0001104659-20-072467-index.html : 20200611
<SEC-HEADER>0001104659-20-072467.hdr.sgml : 20200611
<ACCEPTANCE-DATETIME>20200611170058
ACCESSION NUMBER:		0001104659-20-072467
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20200611
DATE AS OF CHANGE:		20200611

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SELLAS Life Sciences Group, Inc.
		CENTRAL INDEX KEY:			0001390478
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-238799
		FILM NUMBER:		20957820

	BUSINESS ADDRESS:	
		STREET 1:		15 WEST 38TH STREET
		STREET 2:		10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		(917) 438-4353

	MAIL ADDRESS:	
		STREET 1:		15 WEST 38TH STREET
		STREET 2:		10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Galena Biopharma, Inc.
		DATE OF NAME CHANGE:	20110926

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RXi Pharmaceuticals Corp
		DATE OF NAME CHANGE:	20110926

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GALENA BIOPHARMA, INC.
		DATE OF NAME CHANGE:	20110922
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>tm2022217d1_424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: tm2022217d1_424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>tm2021170-1_s1img01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: tm2021170-1_s1img01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2021170-1_s1img02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2021170-1_s1img02.jpg

</DOCUMENT>
</SEC-DOCUMENT>