<SEC-DOCUMENT>0001104659-18-023265-index.html : 20180410
<SEC-HEADER>0001104659-18-023265.hdr.sgml : 20180410
<ACCEPTANCE-DATETIME>20180410162837
ACCESSION NUMBER:		0001104659-18-023265
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		8
CONFORMED PERIOD OF REPORT:	20180524
FILED AS OF DATE:		20180410
DATE AS OF CHANGE:		20180410
EFFECTIVENESS DATE:		20180410

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WHITE MOUNTAINS INSURANCE GROUP LTD
		CENTRAL INDEX KEY:			0000776867
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				942708455
		STATE OF INCORPORATION:			D0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08993
		FILM NUMBER:		18748305

	BUSINESS ADDRESS:	
		STREET 1:		80 SOUTH MAIN ST
		CITY:			HANOVER
		STATE:			NH
		ZIP:			03755
		BUSINESS PHONE:		603 640 2200

	MAIL ADDRESS:	
		STREET 1:		80 SOUTH MAIN STREET
		CITY:			HANOVER
		STATE:			NH
		ZIP:			03755

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WHITE MOUNTAINS INSURANCE GROUP INC
		DATE OF NAME CHANGE:	19990603

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FUND AMERICAN ENTERPRISES HOLDINGS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FUND AMERICAN COMPANIES INC
		DATE OF NAME CHANGE:	19920701
</SEC-HEADER>
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<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>a18-2930_1def14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: a18-2930_1def14a.htm

</DOCUMENT>
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<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g29301bgi001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g29301bgi001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g29301cai001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g29301cai001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g29301cai002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g29301cai002.gif

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g29301bmi001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g29301bmi001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g29301bci001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g29301bci001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g29301cci001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g29301cci001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g29301cci002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g29301cci002.gif

</DOCUMENT>
</SEC-DOCUMENT>