# Filing Detail

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)