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

 

January 7, 2008

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 8.01.  OTHER EVENTS.

 

On January 7, 2008, White Mountains Insurance Group, Ltd. announced that White Mountains Re acquired Helicon Re Holdings, Ltd. (“Helicon Re Holdings”) for approximately $150 million.  Helicon Re Holdings, parent of Helicon Reinsurance Company, Ltd., had GAAP shareholders’ equity of approximately $153 million as of November 30, 2007.  The press release furnished herewith is attached as Exhibit 99.1.

 

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS.

 

(d) Exhibits

 

99.1 Press Release of White Mountains Insurance Group, Ltd. dated January 7, 2008 furnished herewith.

 

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: January 8, 2008

By:

/s/    J. BRIAN PALMER

 

 

J. Brian Palmer

 

 

Chief Accounting Officer

 

2