SEC FORM 3SEC Form 3
| FORM 3 | UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 | | OMB APPROVAL | | OMB Number: | 3235-0104 | | Estimated average burden | | hours per response: | 0.5 |
|
|
1. Name and Address of Reporting Person*
| C/O WHITE MOUNTAINS INSURANCE GROUP, LTD | | 23 SOUTH MAIN STREET, SUITE 3B |
(Street)
| 2. Date of Event Requiring Statement
(Month/Day/Year)
08/26/2026 | 3. Issuer Name and Ticker or Trading Symbol
WHITE MOUNTAINS INSURANCE GROUP LTD
[ WTM ]
Foreign Trading Symbol
|
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable) | Director | | 10% Owner | | Officer (give title below) | | Other (specify below) | |
| 5. If Amendment, Date of Original Filed
(Month/Day/Year)
|
6. Individual or Joint/Group Filing (Check Applicable Line)
| Form filed by One Reporting Person | | Form filed by More than One Reporting Person |
|
| Table I - Non-Derivative Securities Beneficially Owned |
|---|
| 1. Title of Security (Instr.
4)
| 2.
Amount of Securities Beneficially Owned (Instr.
4)
| 3. Ownership Form: Direct (D) or Indirect (I) (Instr.
5)
| 4. Nature of Indirect Beneficial Ownership (Instr.
5)
|
|---|
| Common Shares | 0 | D | |
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities) |
|---|
| 1. Title of Derivative Security (Instr.
4)
| 2. Date Exercisable and Expiration Date
(Month/Day/Year) | 3. Title and Amount of Securities Underlying Derivative Security (Instr.
4)
| 4. Conversion or Exercise Price of Derivative Security
| 5. Ownership Form: Direct (D) or Indirect (I) (Instr.
5)
| 6. Nature of Indirect Beneficial Ownership (Instr.
5)
|
|---|
| Date Exercisable | Expiration Date | Title | Amount or Number of Shares |
|---|
| Explanation of Responses: |
| Wesley C. Bell, Attorney-in-Fact for Stephen Klar | 08/27/2026 |
| ** Signature of Reporting Person | Date |
| 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
5
(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). |
| 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. |
WHITE MOUNTAINS INSURANCE GROUP, LTD.
POWER OF ATTORNEY
Know all by these present, that the undersigned hereby constitutes
and appoints each of Robert L. Seelig, Executive Vice President &
General Counsel of White Mountains Insurance Group, Ltd., Jason R.
Lichtenstein, Managing Director & Deputy General Counsel of White
Mountains Capital LLC, and Wesley C. Bell, Senior Vice President &
Assistant General Counsel of White Mountains Capital LLC, 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"), Form ID and 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 Forms,
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
comply 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 Forms, 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 the date indicated below.
Date: July 27, 2026 /s/ Stephen Klar
-----------------------
Stephen Klar
