Summary of WHITE MOUNTAINS INSURANCE GROUP LTD

ITEM 5.07 Submission of Matters to a Vote of Security Holders.

White Mountains Insurance Group, Ltd. (the "Company") held its 2012 Annual General Meeting of Members (the "2012 Annual Meeting") on May 24, 2012 in Bermuda.

As of March 30, 2012, the record date for the 2012 Annual Meeting, a total of 6,638,873 common shares were eligible to vote; however, in accordance with the Company's Bye-laws, direct and constructive holders of common shares (other than John J. Byrne and his affiliates except in connection with director voting) whose votes would otherwise confer 10% or more of the votes conferred by all the issued shares of the Company are subject to a cut-back that reduces their total voting power to under 10%. The results of the vote, after applying the voting cut-backs which are required by the Company's Bye-laws, are presented below.

Proposal 1 - Election of the Class III Directors to a term ending in 2015.

Nominee:                Votes FOR   Votes Withheld   Broker Non-votes
Howard L. Clark, Jr.    3,738,416          166,672            398,532
A. Michael Frinquelli   3,884,108           20,980            398,532
Allan L. Waters         3,783,544          121,544            398,532

Proposal 2 - Election of Directors of Sirius International Insurance
Corporation.



Nominee:                Votes FOR   Votes Withheld   Broker Non-votes
Lars Ek                 3,892,967           12,121            398,532
Brian E. Kensil         3,892,981           12,107            398,532
Göran A. Thorstensson   3,893,068           12,020            398,532
Allan L. Waters         3,862,973           42,115            398,532

Proposal 3 - Election of Directors of Scandinavian Reinsurance Company Ltd.



Nominee:              Votes FOR   Votes Withheld   Broker Non-votes
Christine H. Repasy   3,893,523           12,565            398,532
Warren J. Trace       3,892,964           13,124            398,532
Allan L. Waters       3,862,663           43,425            398,532

Proposal 4 - Election of Directors of White Mountains Life Reinsurance (Bermuda)
Ltd.



Nominee:            Votes FOR   Votes Withheld   Broker Non-votes
Raymond Barrette    3,879,601           26,487            398,532
David T. Foy        3,893,135           12,953            398,532
Jennifer L. Pitts   3,893,563           12,525            398,532
Warren J. Trace     3,892,887           13,201            398,532

Proposal 5 - Election of Directors of White Shoals Re Ltd.



Nominee:              Votes FOR   Votes Withheld   Broker Non-votes
Christine H. Repasy   3,893,246           11,842            398,532
Warren J. Trace       3,892,909           12,179            398,532
Allan L. Waters       3,862,386           42,702            398,532

Proposal 6 - Election of Directors of Star Re Ltd.



Nominee:                Votes FOR   Votes Withheld   Broker Non-votes
Christine H. Repasy     3,892,786           12,302            398,532
Göran A. Thorstensson   3,893,400           11,688            398,532
Warren J. Trace         3,893,360           11,728            398,532
Allan L. Waters         3,862,326           42,762            398,532

Proposal 7 - Election of Directors of White Mountains Re Sirius Capital Ltd.



Nominee:                Votes FOR   Votes Withheld   Broker Non-votes
Michael Dashfield       3,893,438           12,650            398,532
Lars Ek                 3,893,490           12,598            398,532
Göran A. Thorstensson   3,893,091           12,997            398,532
Allan L. Waters         3,862,666           43,422            398,532

Proposal 8 - Election of Directors for Any New Designated Subsidiary.



Nominee:            Votes FOR   Votes Withheld   Broker Non-votes
Raymond Barrette    3,881,181           23,907            398,532
David T. Foy        3,893,067           12,021            398,532
Jennifer L. Pitts   3,893,366           11,722            398,532
Warren J. Trace     3,893,334           11,754            398,532

Proposal 9 - Approval of the advisory resolution on executive compensation.

Votes FOR Votes Against Abstained Broker Non-votes 4,666,144 39,372 9,875 398,532

Proposal 10 - Approval of the appointment of PricewaterhouseCoopers LLP as the Company's Independent Registered Accounting Firm for 2012.

Votes FOR Votes Against Abstained
5,093,685 18,370 1,868