WHITE MOUNTAINS INSURANCE GROUP LTD — DEF 14A Filings
31 DEF 14A filings on record
This page lists all DEF 14A filings submitted to the SEC by WHITE MOUNTAINS INSURANCE GROUP LTD (WTM), sorted by most recent first. Each row links to the full filing on EdgarLookup. WHITE MOUNTAINS INSURANCE GROUP LTD has filed 31 DEF 14A documents with the SEC since 2009. To view all SEC filings by WHITE MOUNTAINS INSURANCE GROUP LTD, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
11-K
13F-HR
13F-NT
3
3/A
4
4/A
424B3
5
8-A12B
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFM14A
DEFR14A
N-PX
NT 11-K
PRE 14A
S-3
S-3/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13E4
SC 13E4/A
SC 13G
SC 13G/A
SC TO-C
SC TO-I
SC TO-I/A
SC TO-T
SC TO-T/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEF 14A | DEF 14A | 0001104659-25-031124 | Apr 2, 2025 | May 22, 2025 |
| DEF 14A | FORM-DEF14A | 0001104659-24-043314 | Apr 4, 2024 | May 23, 2024 |
| DEF 14A | DEF 14A | 0001104659-23-042136 | Apr 5, 2023 | — |
| DEF 14A | DEF 14A | 0001104659-22-043173 | Apr 6, 2022 | May 26, 2022 |
| DEF 14A | DEF 14A | 0001104659-21-047536 | Apr 7, 2021 | May 27, 2021 |
| DEF 14A | DEF 14A | 0001104659-20-044181 | Apr 7, 2020 | May 21, 2020 |
| DEF 14A | DEF 14A | 0001104659-19-020312 | Apr 8, 2019 | May 23, 2019 |
| DEF 14A | DEF 14A | 0001104659-18-023265 | Apr 10, 2018 | May 24, 2018 |
| DEF 14A | DEF 14A | 0001104659-17-024548 | Apr 19, 2017 | May 25, 2017 |
| DEF 14A | DEF 14A | 0001104659-16-113273 | Apr 21, 2016 | May 26, 2016 |
| DEF 14A | DEF 14A | 0001104659-15-026889 | Apr 10, 2015 | May 28, 2015 |
| DEF 14A | DEF 14A | 0001104659-14-025640 | Apr 3, 2014 | May 22, 2014 |
| DEF 14A | DEF 14A | 0001104659-13-027138 | Apr 4, 2013 | May 23, 2013 |
| DEF 14A | DEF 14A | 0001104659-12-023657 | Apr 3, 2012 | May 24, 2012 |
| DEF 14A | DEF 14A | 0001104659-11-018959 | Apr 7, 2011 | May 26, 2011 |
| DEF 14A | DEF 14A | 0001104659-10-017023 | Mar 29, 2010 | May 26, 2010 |
| DEF 14A | DEF 14A | 0001047469-09-003874 | Apr 7, 2009 | Jun 4, 2009 |
| DEF 14A | DEF 14A | 0001104659-08-021485 | Apr 1, 2008 | May 29, 2008 |
| DEF 14A | DEF 14A | 0001104659-07-023647 | Mar 29, 2007 | May 24, 2007 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001104659-06-021419 | Apr 3, 2006 | May 25, 2006 |
| DEF 14A | DEF 14A | 0001047469-05-009224 | Apr 5, 2005 | May 19, 2005 |
| DEF 14A | DEF 14A | 0001047469-04-027769 | Sep 1, 2004 | Oct 21, 2004 |
| DEF 14A | DEF 14A | 0001047469-03-012050 | Apr 7, 2003 | May 19, 2003 |
| DEF 14A | DEF 14A | 0000912057-02-013058 | Apr 1, 2002 | May 20, 2002 |
| DEF 14A | DEF 14A | 0000912057-01-522873 | Jul 6, 2001 | Aug 23, 2001 |
| DEF 14A | DEF 14A | 0000912057-00-013723 | Mar 27, 2000 | May 22, 2000 |
| DEF 14A | DEF 14A | 0001047469-99-012972 | Mar 31, 1999 | May 27, 1999 |
| DEF 14A | DEF 14A | 0001047469-98-011880 | Mar 27, 1998 | May 28, 1998 |
| DEF 14A | NOTICE AND PROXY | 0000950109-97-002743 | Apr 1, 1997 | May 29, 1997 |
| DEF 14A | NOTICE AND PROXY | 0000950109-96-001869 | Mar 29, 1996 | May 16, 1996 |
| DEF 14A | 05-25-95 | 0000950109-95-001012 | Mar 30, 1995 | May 25, 1995 |