<SEC-DOCUMENT>0001361974-18-000003-index.html : 20180124
<SEC-HEADER>0001361974-18-000003.hdr.sgml : 20180124
<ACCEPTANCE-DATETIME>20180124162736
ACCESSION NUMBER:		0001361974-18-000003
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180124
DATE AS OF CHANGE:		20180124

SUBJECT COMPANY:	

	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:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-82001
		FILM NUMBER:		18545465

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Beutel, Goodman & Co Ltd.
		CENTRAL INDEX KEY:			0001361974
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		20 EGLINTON AVENUE WEST
		STREET 2:		SUITE 2000
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M4R 1K8
		BUSINESS PHONE:		416-485-1010

	MAIL ADDRESS:	
		STREET 1:		20 EGLINTON AVENUE WEST
		STREET 2:		SUITE 2000
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M4R 1K8

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Beutel, Goodman & CO Ltd.
		DATE OF NAME CHANGE:	20060505
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>denison_13g_dec2017.txt
<DESCRIPTION>ANNUAL FILING
<TEXT>
Document 1 - file: denison_13g_dec2017.txt

</DOCUMENT>
</SEC-DOCUMENT>