# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000776867-18-000002
Filing Date
2018-02-28
Accepted
2018-02-28 08:57:20
Documents
162
Period of Report
2017-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | wtm10-k2017.htm | 10-K | 5998424
2 | EXHIBIT 12 | wtm10-k2017ex12.htm | EX-12 | 42217
3 | EXHIBIT 21 | wtm10-k2017ex21.htm | EX-21 | 13183
4 | EXHIBIT 23 | wtm10-k2017ex23.htm | EX-23 | 2403
5 | EXHIBIT 24 | wtm10-k2017ex24.htm | EX-24 | 35829
6 | EXHIBIT 31.1 | wtm10-k2016ex311.htm | EX-31.1 | 10828
7 | EXHIBIT 31.2 | wtm10-k2016ex312.htm | EX-31.2 | 10711
8 | EXHIBIT 32.1 | wtm10-k2016ex321.htm | EX-32.1 | 6811
9 | EXHIBIT 32.2 | wtm10-k2016ex322.htm | EX-32.2 | 6977
16 |  | wtm10k123115charta08.jpg | GRAPHIC | 63075
| Complete submission text file | 0000776867-18-000002.txt |  | 34980696

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
10 | XBRL INSTANCE DOCUMENT | wtm-20171231.xml | EX-101.INS | 10286698
11 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | wtm-20171231.xsd | EX-101.SCH | 163132
12 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | wtm-20171231_cal.xml | EX-101.CAL | 188014
13 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | wtm-20171231_def.xml | EX-101.DEF | 1239792
14 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | wtm-20171231_lab.xml | EX-101.LAB | 1753541
15 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | wtm-20171231_pre.xml | EX-101.PRE | 1452413

Mailing Address 80 SOUTH MAIN STREET HANOVER NH 03755
Business Address 80 SOUTH MAIN ST 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.: 18648242
SIC: 6331 Fire, Marine & Casualty Insurance