# 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
--- | --- | --- | --- | ---
1 | 10-Q | wtm-20210630.htm iXBRL | 10-Q | 5797045
2 | EX-10 | nsm-fifthamendmentexecut.htm | EX-10 | 832715
3 | EX-31.1 | wtmq22021ex311.htm | EX-31.1 | 9088
4 | EX-31.2 | wtmq22021ex312.htm | EX-31.2 | 9158
5 | EX-32.1 | wtmq22021ex321.htm | EX-32.1 | 6434
6 | EX-32.2 | wtmq22021ex322.htm | EX-32.2 | 6398
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| Complete submission text file | 0000776867-21-000016.txt |  | 102305584

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
7 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | wtm-20210630.xsd | EX-101.SCH | 122707
8 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | wtm-20210630_cal.xml | EX-101.CAL | 148876
9 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | wtm-20210630_def.xml | EX-101.DEF | 826791
10 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | wtm-20210630_lab.xml | EX-101.LAB | 1209847
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)

EIN.: 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