Financial reports
ARS
2023 FY
Annual report to shareholders
4 Apr 24
10-K
2023 FY
Annual report
26 Feb 24
10-Q
2023 Q3
Quarterly report
6 Nov 23
10-Q
2023 Q2
Quarterly report
7 Aug 23
10-Q
2023 Q1
Quarterly report
9 May 23
ARS
2022 FY
Annual report to shareholders
5 Apr 23
10-K
2022 FY
Annual report
27 Feb 23
10-Q
2022 Q3
Quarterly report
7 Nov 22
10-Q
2022 Q2
Quarterly report
8 Aug 22
10-Q
2022 Q1
Quarterly report
6 May 22
Current reports
8-K
Departure of Directors or Certain Officers
10 Apr 24
8-K
Reid T. Campbell Elected to the White Mountains Board
23 Feb 24
8-K
White Mountains Reports Fourth Quarter Results
7 Feb 24
8-K
Other Events
2 Jan 24
8-K
Other Events
21 Dec 23
8-K
White Mountains Reports Third Quarter Results
6 Nov 23
8-K
White Mountains to Acquire a Majority Stake in Bamboo
20 Oct 23
8-K
White Mountains Reports Second Quarter Results
7 Aug 23
8-K
Regulation FD Disclosure
6 Jun 23
8-K
Submission of Matters to a Vote of Security Holders
25 May 23
Registration and prospectus
SC TO-T/A
Third party tender offer statement (amended)
30 Jun 23
SC TO-T/A
Third party tender offer statement (amended)
27 Jun 23
SC TO-T
Third party tender offer statement
26 May 23
SC TO-I/A
Issuer tender offer statement (amended)
26 Sep 22
SC TO-I/A
Issuer tender offer statement (amended)
21 Sep 22
SC TO-I/A
Issuer tender offer statement (amended)
30 Aug 22
SC TO-I
Issuer tender offer statement
22 Aug 22
S-8 POS
Registration of securities for employees (post-effective amendment)
30 Dec 20
S-8 POS
Registration of securities for employees (post-effective amendment)
30 Dec 20
S-8 POS
Registration of securities for employees (post-effective amendment)
30 Dec 20
Proxies
DEF 14A
Definitive proxy
4 Apr 24
DEFA14A
Additional proxy soliciting materials
10 May 23
DEFR14A
Revised proxy
6 Apr 23
DEF 14A
Definitive proxy
5 Apr 23
DEFA14A
Additional proxy soliciting materials
16 May 22
DEF 14A
Definitive proxy
6 Apr 22
DEF 14A
Definitive proxy
7 Apr 21
DEF 14A
Definitive proxy
7 Apr 20
DEF 14A
Definitive proxy
8 Apr 19
DEF 14A
Definitive proxy
10 Apr 18
Other
UPLOAD
Letter from SEC
17 Jun 20
CORRESP
Correspondence with SEC
10 Jun 20
UPLOAD
Letter from SEC
28 May 20
UPLOAD
Letter from SEC
22 Feb 13
CORRESP
Correspondence with SEC
19 Feb 13
CORRESP
Correspondence with SEC
18 Jan 13
CORRESP
Correspondence with SEC
17 Dec 12
UPLOAD
Letter from SEC
30 Nov 12
UPLOAD
Letter from SEC
11 Jan 12
CORRESP
Correspondence with SEC
3 Jan 12
Ownership
4
REID TARLTON CAMPBELL
21 Mar 24
4
George Manning Rountree
23 Feb 24
4
Liam P Caffrey
23 Feb 24
4
ROBERT LAWRENCE SEELIG
23 Feb 24
4
Michaela Hildreth
23 Feb 24
4
REID TARLTON CAMPBELL
23 Feb 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
13F-HR
Quarterly holdings report by institutional manager
13 Feb 24
SC 13G/A
FULLER & THALER ASSET MANAGEMENT, INC.
12 Feb 24
SC 13G/A
MORGAN STANLEY
9 Feb 24