Form DEF 14A - Other definitive proxy statements:
SEC Accession No. 0001104659-25-031124
Filing Date
2025-04-02
Accepted
2025-04-02 16:01:45
Documents
53
Period of Report
2025-05-22

Document Format Files

Seq Description Document Type Size
1 DEF 14A tm252335d1_def14a.htm   iXBRL DEF 14A 1169981
5 GRAPHIC tm252335d1_def14asp1img001.jpg GRAPHIC 10337
6 GRAPHIC tm252335d1_def14asp1img002.jpg GRAPHIC 237082
7 GRAPHIC tm252335d1_def14asp1img003.jpg GRAPHIC 94459
8 GRAPHIC tm252335d1_def14asp1img004.jpg GRAPHIC 171938
9 GRAPHIC tm242661d3_def14asp2img003.jpg GRAPHIC 728
10 GRAPHIC tm252335d1_def14asp1img005.jpg GRAPHIC 18586
11 GRAPHIC tm252335d1_def14asp1img006.jpg GRAPHIC 19678
12 GRAPHIC tm252335d1_def14asp1img007.jpg GRAPHIC 212665
13 GRAPHIC tm252335d1_def14asp01img007.jpg GRAPHIC 224284
14 GRAPHIC tm252335d1_def14asp01img008.jpg GRAPHIC 599190
15 GRAPHIC tm252335d1_def14asp02img001.jpg GRAPHIC 11288
16 GRAPHIC tm252335d1_def14asp02img002.jpg GRAPHIC 12103
17 GRAPHIC tm252335d1_def14asp02img003.jpg GRAPHIC 10855
18 GRAPHIC tm252335d1_def14asp02img004.jpg GRAPHIC 11713
19 GRAPHIC tm252335d1_def14asp02img005.jpg GRAPHIC 14526
20 GRAPHIC tm252335d1_def14asp02img006.jpg GRAPHIC 11888
21 GRAPHIC tm252335d1_def14asp02img007.jpg GRAPHIC 13072
22 GRAPHIC tm252335d1_def14asp02img008.jpg GRAPHIC 13406
23 GRAPHIC tm252335d1_def14asp02img009.jpg GRAPHIC 13857
24 GRAPHIC tm252335d1_def14asp02img010.jpg GRAPHIC 15652
25 GRAPHIC tm252335d1_def14asp02img011.jpg GRAPHIC 84848
26 GRAPHIC tm252335d1_def14asp3img001.jpg GRAPHIC 191388
27 GRAPHIC tm252335d1_def14asp3img002.jpg GRAPHIC 17887
28 GRAPHIC tm252335d1_def14asp3img003.jpg GRAPHIC 146085
29 GRAPHIC tm252335d1_def14asp3img004.jpg GRAPHIC 6464
30 GRAPHIC tm252335d1_def14asp3img005.jpg GRAPHIC 6805
31 GRAPHIC tm252335d1_def14asp3img006.jpg GRAPHIC 17325
32 GRAPHIC tm252335d1_def14asp3img007.jpg GRAPHIC 16076
33 GRAPHIC tm252335d1_def14asp3img008.jpg GRAPHIC 48771
34 GRAPHIC tm252335d1_def14asp3img009.jpg GRAPHIC 14737
35 GRAPHIC tm252335d1_def14asp3img010.jpg GRAPHIC 56834
36 GRAPHIC tm252335d1_def14asp3img011.jpg GRAPHIC 16255
37 GRAPHIC tm252335d1_def14asp4img01.jpg GRAPHIC 25434
38 GRAPHIC tm252335d1_def14asp5img02.jpg GRAPHIC 7342
39 GRAPHIC tm252335d1_def14asp5img01.jpg GRAPHIC 25601
40 GRAPHIC tm252335d1_def14aimg001.jpg GRAPHIC 126575
41 GRAPHIC tm252335d1_def14aimg002.jpg GRAPHIC 97596
42 GRAPHIC tm252335d1_def14aimg003.jpg GRAPHIC 93150
43 GRAPHIC tm252335d1_def14aimg004.jpg GRAPHIC 72499
  Complete submission text file 0001104659-25-031124.txt   9364294

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA wtm-20241231.xsd EX-101.SCH 6774
3 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE wtm-20241231_def.xml EX-101.DEF 1903
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE wtm-20241231_lab.xml EX-101.LAB 20295
55 EXTRACTED XBRL INSTANCE DOCUMENT tm252335d1_def14a_htm.xml XML 195780
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: DEF 14A | Act: 34 | File No.: 001-08993 | Film No.: 25804207
SIC: 6331 Fire, Marine & Casualty Insurance
(CF Office: 02 Finance)