# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000776867-21-000008
Filing Date
2021-05-10
Accepted
2021-05-10 09:01:06
Documents
123
Period of Report
2021-03-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | wtm-20210331.htm iXBRL | 10-Q | 4510347
2 | EX-31.1 | wtmq12021ex311.htm | EX-31.1 | 9086
3 | EX-31.2 | wtmq12021ex312.htm | EX-31.2 | 9156
4 | EX-32.1 | wtmq12021ex321.htm | EX-32.1 | 6433
5 | EX-32.2 | wtmq12021ex322.htm | EX-32.2 | 6397
| Complete submission text file | 0000776867-21-000008.txt |  | 20696798

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
6 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | wtm-20210331.xsd | EX-101.SCH | 121271
7 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | wtm-20210331_cal.xml | EX-101.CAL | 166741
8 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | wtm-20210331_def.xml | EX-101.DEF | 910792
9 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | wtm-20210331_lab.xml | EX-101.LAB | 1186136
10 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | wtm-20210331_pre.xml | EX-101.PRE | 1049058
11 | EXTRACTED XBRL INSTANCE DOCUMENT | wtm-20210331_htm.xml | XML | 4676770

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.: 21905432
SIC: 6331 Fire, Marine & Casualty Insurance