<SEC-DOCUMENT>0001104659-22-049655-index.html : 20220425
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<ACCEPTANCE-DATETIME>20220425162207
ACCESSION NUMBER:		0001104659-22-049655
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20220608
FILED AS OF DATE:		20220425
DATE AS OF CHANGE:		20220425

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33958
		FILM NUMBER:		22849953

	BUSINESS ADDRESS:	
		STREET 1:		7 TIMES SQUARE
		STREET 2:		SUITE 2503
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		6462005278

	MAIL ADDRESS:	
		STREET 1:		7 TIMES SQUARE
		STREET 2:		SUITE 2503
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

	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>
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<TYPE>DEF 14A
<SEQUENCE>1
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<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: tm223704-1_def14a.htm

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<TEXT>
Document 2 - file: lg_sellaslifesciences-4clr.jpg

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<TEXT>
Document 3 - file: sg_angelosmstergiou-bw.jpg

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<DESCRIPTION>GRAPHIC
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Document 4 - file: sg_barbaraawood-bw.jpg

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Document 5 - file: tm223704d1-icon_internetbw.jpg

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<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: tm223704d1-icon_mailbw.jpg

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Document 7 - file: tm223704d1-icon_telebwlr.jpg

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Document 8 - file: tm223704d1-pxy_proxy14c.jpg

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<TEXT>
Document 9 - file: tm223704d1-pxy_proxy24c.jpg

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<TEXT>
Document 10 - file: tm223704d1-pxy_proxy34c.jpg

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<TEXT>
Document 11 - file: tm223704d1-pxy_proxy44c.jpg

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