<SEC-DOCUMENT>0001104659-21-080891-index.html : 20210615
<SEC-HEADER>0001104659-21-080891.hdr.sgml : 20210615
<ACCEPTANCE-DATETIME>20210614181954
ACCESSION NUMBER:		0001104659-21-080891
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20210615
DATE AS OF CHANGE:		20210614
GROUP MEMBERS:		1102952 B.C. UNLIMITED LIABILITY CO
GROUP MEMBERS:		12002574 CANADA INC.
GROUP MEMBERS:		ALLIED WORLD ASSURANCE CO (EUROPE) DAC
GROUP MEMBERS:		ALLIED WORLD ASSURANCE CO (U.S.) INC.
GROUP MEMBERS:		ALLIED WORLD ASSURANCE CO HOLDINGS I, LTD
GROUP MEMBERS:		ALLIED WORLD ASSURANCE CO HOLDINGS, LTD
GROUP MEMBERS:		ALLIED WORLD ASSURANCE COMPANY, AG
GROUP MEMBERS:		ALLIED WORLD ASSURANCE COMPANY, LTD
GROUP MEMBERS:		ALLIED WORLD ASSURANCE HOLDINGS (IRELAND) LTD
GROUP MEMBERS:		ALLIED WORLD ASSURANCE HOLDINGS (U.S.) INC.
GROUP MEMBERS:		ALLIED WORLD INSURANCE CO
GROUP MEMBERS:		ALLIED WORLD NATIONAL ASSURANCE CO
GROUP MEMBERS:		ALLIED WORLD SPECIALTY INSURANCE CO
GROUP MEMBERS:		ALLIED WORLD SURPLUS LINES INSURANCE CO
GROUP MEMBERS:		AW UNDERWRITERS INC.
GROUP MEMBERS:		BRIT INSURANCE HOLDINGS LTD
GROUP MEMBERS:		BRIT LTD
GROUP MEMBERS:		BRIT REINSURANCE (BERMUDA) LTD
GROUP MEMBERS:		BRIT SYNDICATES LTD
GROUP MEMBERS:		BRIT UW LTD
GROUP MEMBERS:		CRUM & FORSTER HOLDINGS CORP.
GROUP MEMBERS:		FAIRFAX (BARBADOS) INTERNATIONAL CORP.
GROUP MEMBERS:		FAIRFAX (US) INC.
GROUP MEMBERS:		FAIRFAX FINANCIAL HOLDINGS LTD
GROUP MEMBERS:		FFHL GROUP LTD.
GROUP MEMBERS:		GREYSTONE INSURANCE CO
GROUP MEMBERS:		HILLTOP SPECIALTY INSURANCE CO
GROUP MEMBERS:		HUDSON EXCESS INSURANCE CO
GROUP MEMBERS:		HUDSON INSURANCE CO
GROUP MEMBERS:		NEWLINE CORPORATE NAME LTD
GROUP MEMBERS:		NEWLINE HOLDINGS UK LTD
GROUP MEMBERS:		ODYSSEY GROUP HOLDINGS, INC.
GROUP MEMBERS:		ODYSSEY REINSURANCE CO
GROUP MEMBERS:		ODYSSEY US HOLDINGS INC.
GROUP MEMBERS:		RIVERSTONE (BARBADOS) LTD.
GROUP MEMBERS:		RIVERSTONE CORPORATE CAPITAL LTD
GROUP MEMBERS:		RIVERSTONE HOLDINGS LTD
GROUP MEMBERS:		RIVERSTONE INSURANCE (UK) LTD
GROUP MEMBERS:		SECOND 1109 HOLDCO LTD.
GROUP MEMBERS:		SECOND 810 HOLDCO LTD.
GROUP MEMBERS:		SIXTY THREE FOUNDATION
GROUP MEMBERS:		SIXTY TWO INVESTMENT CO LTD
GROUP MEMBERS:		TIG INSURANCE (BARBADOS) LTD
GROUP MEMBERS:		TIG INSURANCE CO
GROUP MEMBERS:		UNITED STATES FIRE INSURANCE CO
GROUP MEMBERS:		V. PREM WATSA
GROUP MEMBERS:		WENTWORTH INSURANCE CO LTD.
GROUP MEMBERS:		ZENITH INSURANCE CO
GROUP MEMBERS:		ZENITH NATIONAL INSURANCE CORP.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Atlas Corp.
		CENTRAL INDEX KEY:			0001794846
		STANDARD INDUSTRIAL CLASSIFICATION:	DEEP SEA FOREIGN TRANSPORTATION OF FREIGHT [4412]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			1T
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91452
		FILM NUMBER:		211015994

	BUSINESS ADDRESS:	
		STREET 1:		2600-200 GRANVILLE STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V6C 1S4
		BUSINESS PHONE:		604-638-2575

	MAIL ADDRESS:	
		STREET 1:		2600-200 GRANVILLE STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V6C 1S4

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FAIRFAX FINANCIAL HOLDINGS LTD/ CAN
		CENTRAL INDEX KEY:			0000915191
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				101728897
		STATE OF INCORPORATION:			Z4
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		FAIRFAX FINANCIAL HOLDINGS LTD
		STREET 2:		95 WELLINGTON ST WEST STE 800
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 2N7
		BUSINESS PHONE:		4163674941

	MAIL ADDRESS:	
		STREET 1:		FAIRFAX FINANCIAL HOLDINGS LTD
		STREET 2:		95 WELLINGTON ST WEST STE 800
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 2N7

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FAIRFAX FINANCIAL HOLDINGS LTD
		DATE OF NAME CHANGE:	19931122
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>tm2119584d1_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: tm2119584d1_sc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>tm2119584d1_ex1.htm
<DESCRIPTION>EXHIBIT 1
<TEXT>
Document 2 - file: tm2119584d1_ex1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2
<SEQUENCE>3
<FILENAME>tm2119584d1_ex2.htm
<DESCRIPTION>EXHIBIT 2
<TEXT>
Document 3 - file: tm2119584d1_ex2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4
<SEQUENCE>4
<FILENAME>tm2119584d1_ex4.htm
<DESCRIPTION>EXHIBIT 4
<TEXT>
Document 4 - file: tm2119584d1_ex4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5
<SEQUENCE>5
<FILENAME>tm2119584d1_ex5.htm
<DESCRIPTION>EXHIBIT 5
<TEXT>
Document 5 - file: tm2119584d1_ex5.htm

</DOCUMENT>
</SEC-DOCUMENT>