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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)

IRS No.: 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