# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000776867-23-000004
Filing Date
2023-02-27
Accepted
2023-02-27 16:47:41
Documents
167
Period of Report
2022-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | wtm-20221231.htm iXBRL | 10-K | 8516866
2 | EX-4 | wtm10-k2022exhibit4.htm | EX-4 | 15594
3 | EX-21 | wtm10-k2022exhibit21.htm | EX-21 | 23770
4 | EX-23.1 | wtm10-k2022exhibit231.htm | EX-23.1 | 1754
5 | EX-23.2 | wtm10-k2022exhibit232.htm | EX-23.2 | 1878
6 | EX-24 | wtm10-k2022exhibit24.htm | EX-24 | 28271
7 | EX-31.1 | wtm10-k2022exhibit311.htm | EX-31.1 | 9250
8 | EX-31.2 | wtm10-k2022exhibit312.htm | EX-31.2 | 9185
9 | EX-32.1 | wtm10-k2022exhibit321.htm | EX-32.1 | 6785
10 | EX-32.2 | wtm10-k2022exhibit322.htm | EX-32.2 | 7000
16 |  | wtm-20221231_g1.jpg | GRAPHIC | 98258
| Complete submission text file | 0000776867-23-000004.txt |  | 34264557

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
11 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | wtm-20221231.xsd | EX-101.SCH | 172097
12 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | wtm-20221231_cal.xml | EX-101.CAL | 189538
13 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | wtm-20221231_def.xml | EX-101.DEF | 1312492
14 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | wtm-20221231_lab.xml | EX-101.LAB | 1727867
15 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | wtm-20221231_pre.xml | EX-101.PRE | 1507694
161 | EXTRACTED XBRL INSTANCE DOCUMENT | wtm-20221231_htm.xml | XML | 7789348

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-K | Act: 34 | File No.: 001-08993 | Film No.: 23675938
SIC: 6331 Fire, Marine & Casualty Insurance