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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000776867-19-000008
Filing Date
2019-02-27
Accepted
2019-02-27 09:00:49
Documents
146
Period of Report
2018-12-31

Document Format Files

Seq Description Document Type Size
1 10-K wtm10-k2018.htm 10-K 5369738
2 EXHIBIT 10.7 wtm10-k2018ex107.htm EX-10.7 151671
3 EXHIBIT 12 wtm10-k2018ex12.htm EX-12 42373
4 EXHIBIT 21 wtm10-k2018ex21.htm EX-21 23179
5 EXHIBIT 23 wtm10-k2018ex23.htm EX-23 2403
6 EXHIBIT 24 wtm10-k2018ex24.htm EX-24 36189
7 EXHIBIT 31.1 wtm10-k2018ex311.htm EX-31.1 10908
8 EXHIBIT 31.2 wtm10-k2018ex312.htm EX-31.2 10742
9 EXHIBIT 32.1 wtm10-k2018ex321.htm EX-32.1 6813
10 EXHIBIT 32.2 wtm10-k2018ex322.htm EX-32.2 7114
17 chart-26072a885d2057f2a29.jpg GRAPHIC 60036
  Complete submission text file 0000776867-19-000008.txt   29539419

Data Files

Seq Description Document Type Size
11 XBRL INSTANCE DOCUMENT wtm-20181231.xml EX-101.INS 7931980
12 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT wtm-20181231.xsd EX-101.SCH 149005
13 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT wtm-20181231_cal.xml EX-101.CAL 154984
14 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT wtm-20181231_def.xml EX-101.DEF 1162334
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT wtm-20181231_lab.xml EX-101.LAB 1665858
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT wtm-20181231_pre.xml EX-101.PRE 1361330
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)

IRS No.: 942708455 | State of Incorp.: D0 | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-08993 | Film No.: 19635964
SIC: 6331 Fire, Marine & Casualty Insurance