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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000776867-21-000016
Filing Date
2021-08-06
Accepted
2021-08-06 08:57:56
Documents
354
Period of Report
2021-06-30

Document Format Files

Seq Description Document Type Size
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  Complete submission text file 0000776867-21-000016.txt   102305584

Data Files

Seq Description Document Type Size
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8 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT wtm-20210630_cal.xml EX-101.CAL 148876
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11 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT wtm-20210630_pre.xml EX-101.PRE 988757
244 EXTRACTED XBRL INSTANCE DOCUMENT wtm-20210630_htm.xml XML 5950575
Mailing Address 23 SOUTH MAIN STREET SUITE 3B HANOVER NH 03755
Business Address 23 SOUTH MAIN STREET SUITE 3B HANOVER NH 03755 603 640 2200
WHITE MOUNTAINS INSURANCE GROUP LTD (Filer) CIK: 0000776867 (see all company filings)

IRS No.: 942708455 | State of Incorp.: D0 | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-08993 | Film No.: 211150964
SIC: 6331 Fire, Marine & Casualty Insurance