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Welcome to White Mountains Insurance Group, Ltd.


Fact Sheet

This fact sheet offers investor and contact information for White Mountains. Click on the links below to jump to the information you need, or simply scroll down.

Stock Exchange Information
Corporate Headquarters
Mailing Address
Registered Office
Principal Executive Office
Shareholder and Investor Services
Transfer Agent and Registrar for Common Shares
Independent Auditors

Stock Exchange Information:

White Mountains' Common Shares are listed on both the New York Stock Exchange and the Bermuda Stock Exchange under the symbol 'WTM'.

Corporate Headquarters:

Mailing Address:

Registered Office (location of shareholder records):

Principal Executive Office:

Investor Inquiries:

Shareholder Inquiries:

Transfer Agent and Registrar for Common Shares:

    Private Couriers/Registered Mail:
    Computershare Trust Company, N.A.
    250 Royall Street
    Canton, MA 02021
    ATTN: Priority Processing

Registered shareholders (shares are held by you in your name) may obtain information about transfer requirements, replacement dividend checks, duplicate 1099 forms, and changes of address by calling the Transfer Agent's Telephone Response Center or visiting the Transfer Agent's website at www.computershare.com. Please be prepared to provide your tax identification number or social security number, description of securities and address of record. Other inquiries concerning your shareholder account should be addressed in writing to the Transfer Agent and Registrar.

Independent Auditors:

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