UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

April 12, 2007

Date of Report (Date of earliest event reported)

WHITE MOUNTAINS INSURANCE GROUP, LTD.

(Exact name of registrant as specified in its charter)

 

Bermuda

 

1-8993

 

94-2708455

(State or other jurisdiction of
incorporation or organization)

 

(Commission file
number)

 

(I.R.S. Employer
Identification No.)

 

80 South Main Street, Hanover, New Hampshire 03755

(Address of principal executive offices)

(603) 640-2200

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))





 

ITEM 7.01     Regulation FD.

The Registrant has updated the information that its executive officers intend to use, in whole or in part, at presentations with investors. The updated information is attached as Exhibit 99.1 to this Form 8-K.

ITEM 9.01     Financial Statements and Exhibits

(d) Exhibits. The following exhibit is furnished herewith:

EXHIBIT INDEX

99.1 Supplemental Regulation FD Disclosure dated April 12, 2007.

99.2 Reconciliation of non-GAAP financial measures.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 

 

 

WHITE MOUNTAINS INSURANCE GROUP, LTD.

 

 

 

DATED: April 12, 2007

 

By:

/s/

J. BRIAN PALMER

 

 

 

 

 

J. Brian Palmer
Chief Accounting Officer

 

 

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