Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Filed By
Romeo and Dye's
Section 16 Filer
www.section16.net



1. Name and Address of Reporting Person*

Kemp Karl Thomas

2. Issuer Name and Ticker or Trading Symbol
White Mountains Insurance Group, Ltd. (WTM)

6. Relationship of Reporting Person(s)
to Issuer (Check all applicable)
X Director                                       10% Owner
    Officer (give title below)          Other (specify below)

                                                  

(Last)      (First)     (Middle)

c/o White Mountains Insurance Group, Ltd.
80 South Main Street

3. I.R.S. Identification Number
of Reporting Person,
if an entity (voluntary)

 

4. Statement for
Month/Day/Year
March 26, 2003

(Street)

Hanover, NH 03755

5. If Amendment,
Date of Original
(Month/Day/Year)
 
7. Individual or Joint/Group Filing (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. Trans-
action
Date
(Month/ Day/
Year)

2A. Deemed
Execution
Date,
if any
(Month/Day/
Year)

3. Trans-
action Code
(Instr. 8)

4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 & 5)

5. Amount of
Securities
Beneficially
Owned Follow-
ing Reported Transactions(s)
(Instr. 3 & 4)

6. Owner-
ship Form:
Direct (D)
or Indirect (I)
(Instr. 4)

7. Nature of Indirect
Beneficial Ownership
(Instr. 4)

Code

V

Amount

(A)
or
(D)

Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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

FORM 4 (continued)

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. Conver-
sion or
Exercise
Price of Derivative Security

3. Trans-
action Date

(Month/
Day/
Year)

3A. Deemed
Execution
Date,
if any
(Month/
Day/
Year)

4. Trans-
action
Code

(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)

(Instr. 3, 4 & 5)

6. Date Exercisable
and Expiration
Date
(Month/Day/
Year)

7. Title and Amount of Underlying Securities
(Instr. 3 & 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of
Derivative
Securities
Beneficially
Owned
Following
Reported Transaction(s)
(Instr. 4)

10. Owner-
ship Form
of Deriv-
ative
Security:
Direct (D)
or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

V

(A)

(D)

Date Exer-cisable

Expira-
tion
Date

Title

Amount or Number of
Shares

Phantom Shares

1 for 1

3/26/03

3/26/03

A

 

12(1)

 

 (2)

 (2)

Common Shares

12

338.5(3)

4,081

D

 

Explanation of Responses:

(1) On March 26, 2003, the Reporting Person was credited with 12 Phantom Shares representing dividends on deferred compensation balances payable at a future date in cash.
(2) Payment of deferred compensation balances is due in cash based on a predetermined Payment Schedule entered into in October 1999 by the Reporting Person.
(3) Dividends are automatically reinvested in Phantom Shares at the fair market price per share of the underlying WTM Common Shares on March 26, 2003, the date the dividends are deemed to be paid.

  By: /s/ Dennis P. Beaulieu, Attorney-in-Fact
              
**Signature of Reporting Person
March 27, 2003
Date

**Intentional misstatements or omissions of facts constitute Federal Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed.
          If space is insufficient, See Instruction 6 for procedure.

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 Number.

 


POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and appoints each of  Brian Palmer, Chief Accounting Officer and Dennis P. Beaulieu, Secretary, of White Mountains Insurance Group, Ltd., and Robert L. Seelig, General Counsel of OneBeacon Asset Management, Inc., signing singly, the undersigned's true and lawful attorney-in-fact to:

(1)        execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of White Mountains Insurance Group, Ltd. (the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;

(2)        do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

(3)        take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

  The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not rendering legal advice of any form, other than satisfying regulatory filing requirements, with respect to any transactions to be reported on Forms 3, 4 and 5 are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to compl
y with Section 16 of the Securities Exchange Act of 1934.

The undersigned hereby grants this Power of Attorney with the understanding that information provided to each such attorney-in-fact is strictly confidential and will not be disclosed to senior management, directors or other third parties whether affiliated or otherwise and will be used solely to complete and execute any such Form 3, 4 or 5, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority

         This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

  IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this  11th  day of October, 2002.



/s/  K. Thomas Kemp

___________________________________

K. Thomas Kemp