Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000776867-18-000006
Filing Date
2018-05-02
Accepted
2018-05-02 08:39:57
Documents
104
Period of Report
2018-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q wtm10-q33118.htm 10-Q 2753173
2 EXHIBIT 10 wtm10-q33118ex10.htm EX-10 696989
3 EXHIBIT 31.1 wtm10-q33118ex311.htm EX-31.1 10784
4 EXHIBIT 31.2 wtm10-q33118ex312.htm EX-31.2 10781
5 EXHIBIT 32.1 wtm10-q33118ex321.htm EX-32.1 6948
6 EXHIBIT 32.2 wtm10-q33118ex322.htm EX-32.2 7030
  Complete submission text file 0000776867-18-000006.txt   17919368

Data Files

Seq Description Document Type Size
7 XBRL INSTANCE DOCUMENT wtm-20180331.xml EX-101.INS 4919879
8 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT wtm-20180331.xsd EX-101.SCH 94750
9 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT wtm-20180331_cal.xml EX-101.CAL 108032
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT wtm-20180331_def.xml EX-101.DEF 716747
11 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT wtm-20180331_lab.xml EX-101.LAB 1026101
12 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT wtm-20180331_pre.xml EX-101.PRE 820045
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-Q | Act: 34 | File No.: 001-08993 | Film No.: 18797670
SIC: 6331 Fire, Marine & Casualty Insurance