(State or other jurisdiction of incorporation or organization) | (Commission file number) | (I.R.S. Employer Identification No.) |
Title of each class | Trading Symbol(s) | Name of each exchange on which registered | ||||||||||||
per share | Bermuda Stock Exchange |
WHITE MOUNTAINS INSURANCE GROUP, LTD. | ||||||||||||||
6/29/2021 | By: | /s/ MICHAELA J. HILDRETH Michaela J. Hildreth Managing Director and Chief Accounting Officer |
Document and Entity Information |
Jun. 29, 2021 |
---|---|
Cover [Abstract] | |
Document Type | 8-K |
Document Period End Date | Jun. 29, 2021 |
Entity Registrant Name | WHITE MOUNTAINS INSURANCE GROUP, LTD. |
Entity Incorporation, State or Country Code | D0 |
Entity File Number | 1-8993 |
Entity Tax Identification Number | 94-2708455 |
Entity Address, Address Line One | 23 South Main Street, Suite 3B |
Entity Address, City or Town | Hanover |
Entity Address, State or Province | NH |
Entity Address, Postal Zip Code | 03755 |
City Area Code | 603 |
Local Phone Number | 640-2200 |
Written Communications | false |
Soliciting Material | false |
Pre-commencement Tender Offer | false |
Pre-commencement Issuer Tender Offer | false |
Title of 12(b) Security | Common Shares, par value $1.00 |
Trading Symbol | WTM |
Security Exchange Name | NYSE |
Entity Emerging Growth Company | false |
Entity Central Index Key | 0000776867 |
Amendment Flag | false |
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