Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
CHOKEL CHARLES BERGEN
2. Issuer Name and Ticker or Trading Symbol
WHITE MOUNTAINS INSURANCE GROUP LTD [WTM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CFO - White Mountains Re Group
(Last)
(First)
(Middle)

C/O WHITE MOUNTAINS INSURANCE GROUP, LTD, 80 SOUTH MAIN STREET
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2007
(Street)


HANOVER, NH 03755
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(check applicable line)

_X_ Form Filed by One Reporting Person
___ Form Filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Shares             408 (1) I By 401(k)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 2270 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Phantom Shares               (3)   (3) Common Shares
270 (4)
  270 (4)
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
CHOKEL CHARLES BERGEN
C/O WHITE MOUNTAINS INSURANCE GROUP, LTD
80 SOUTH MAIN STREET
HANOVER, NH 03755
      CFO - White Mountains Re Group  

Signatures

Jason R. Lichtenstein, by Power of Attorney 02/13/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Since August 15, 2006, the date of Reporting Person's last filing, Reporting Person acquired 91 shares of WTM Common Shares under the Folksamerica 401(k) Plan and OneBeacon 401(k) Plan. WTM Common Shares are purchased at fair market value on the date of purchase. The information in this report is based on a Folkamerica plan statement dated as of January 31, 2008 and a OneBeacon plan statement dated as of December 31, 2007.
(2) Phantom Shares are convertible into Common Shares on a 1 for 1 basis.
(3) The Phantom Shares are held by Reporting Person under a non-qualified deferred compensation plan and are payable in cash upon the earlier of the date when the Reporting Person ceases to be an employee of the Company or a date certain selected by the Reporting Person.
(4) Reflects reclassification of Shares previously reported as Non-Derivative Securities in the Reporting Person's prior filings and the aggregation of fractional Shares totaling to 5 Shares credited to the Reporting Person's account as phantom dividends since the date of the Reporting Person's last filing on August 15, 2006.

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