<SEC-DOCUMENT>0001437749-21-015714-index.html : 20210625
<SEC-HEADER>0001437749-21-015714.hdr.sgml : 20210625
<ACCEPTANCE-DATETIME>20210625172608
ACCESSION NUMBER:		0001437749-21-015714
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20210625
DATE AS OF CHANGE:		20210625

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Moleculin Biotech, Inc.
		CENTRAL INDEX KEY:			0001659617
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				474671999
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-256627
		FILM NUMBER:		211049090

	BUSINESS ADDRESS:	
		STREET 1:		5300 MEMORIAL DRIVE
		STREET 2:		SUITE 950
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77007
		BUSINESS PHONE:		713-300-5160

	MAIL ADDRESS:	
		STREET 1:		5300 MEMORIAL DRIVE
		STREET 2:		SUITE 950
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77007
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>mbrx20210622d_424b5.htm
<DESCRIPTION>FORM 424B5
<TEXT>
Document 1 - file: mbrx20210622d_424b5.htm

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

</DOCUMENT>
</SEC-DOCUMENT>