<SEC-DOCUMENT>0001104659-23-108617-index.html : 20231012
<SEC-HEADER>0001104659-23-108617.hdr.sgml : 20231012
<ACCEPTANCE-DATETIME>20231011180205
ACCESSION NUMBER:		0001104659-23-108617
CONFORMED SUBMISSION TYPE:	SUPPL
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20231012
DATE AS OF CHANGE:		20231011
EFFECTIVENESS DATE:		20231012

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DENISON MINES CORP.
		CENTRAL INDEX KEY:			0001063259
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SUPPL
		SEC ACT:		
		SEC FILE NUMBER:	333-258939
		FILM NUMBER:		231321462

	BUSINESS ADDRESS:	
		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 1T1
		BUSINESS PHONE:		(416) 979-1991

	MAIL ADDRESS:	
		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 1T1

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERNATIONAL URANIUM CORP
		DATE OF NAME CHANGE:	19980603
</SEC-HEADER>
<DOCUMENT>
<TYPE>SUPPL
<SEQUENCE>1
<FILENAME>tm2327329-5_suppl.htm
<DESCRIPTION>SUPPL
<TEXT>
Document 1 - file: tm2327329-5_suppl.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>lg_denison-4c.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: lg_denison-4c.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>fc_mines-4c.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: fc_mines-4c.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2124993d3-fc_denison4c.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2124993d3-fc_denison4c.jpg

</DOCUMENT>
</SEC-DOCUMENT>