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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 CIK#: 0000776867 (see all company filings)

SIC: 6331 - FIRE, MARINE & CASUALTY INSURANCE
State location: NH | State of Inc.: D0 | Fiscal Year End: 1231
formerly: FUND AMERICAN ENTERPRISES HOLDINGS INC (filings through 1999-02-10)
formerly: WHITE MOUNTAINS INSURANCE GROUP INC (filings through 1999-10-20)
(CF Office: 02 Finance)
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Items 1 - 40  0000776867 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000776867-24-000005 (34 Act)  Size: 31 MB
2024-02-26 001-08993
24673767
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0000776867-24-000004 (34 Act)  Size: 253 KB
2024-02-23 001-08993
24667315
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-24-022306 (34 Act)  Size: 13 KB
2024-02-13 005-36786
24629997
13F-HR  Documents Quarterly report filed by institutional managers, Holdings
Acc-no: 0001104659-24-019920 (34 Act)  Size: 5 KB
2024-02-13 028-01681
24626342
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001082327-24-000011 (34 Act)  Size: 7 KB
2024-02-12 005-36786
24621631
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000895421-24-000148 (34 Act)  Size: 13 KB
2024-02-09 005-36786
24613634
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000354204-24-002892 (34 Act)  Size: 19 KB
2024-02-09 005-36786
24612144
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000776867-24-000003 (34 Act)  Size: 1 MB
2024-02-07 001-08993
24602254
8-K  Documents   Interactive Data Current report, item 8.01
Acc-no: 0000776867-24-000002 (34 Act)  Size: 148 KB
2024-01-03 001-08993
24503773
SC 13D/A  Documents [Amend] General statement of acquisition of beneficial ownership
Acc-no: 0000776867-24-000001 Size: 204 KB
2024-01-03
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0000776867-23-000018 (34 Act)  Size: 250 KB
2023-12-21 001-08993
231505626
13F-HR  Documents Quarterly report filed by institutional managers, Holdings
Acc-no: 0001104659-23-115989 (34 Act)  Size: 5 KB
2023-11-09 028-01681
231390046
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000776867-23-000017 (34 Act)  Size: 58 MB
2023-11-06 001-08993
231378325
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000776867-23-000016 (34 Act)  Size: 1 MB
2023-11-06 001-08993
231378199
SC 13D/A  Documents [Amend] General statement of acquisition of beneficial ownership
Acc-no: 0000776867-23-000015 Size: 213 KB
2023-11-02
8-K  Documents   Interactive Data Current report, items 1.01 and 9.01
Acc-no: 0000776867-23-000014 (34 Act)  Size: 285 KB
2023-10-20 001-08993
231335996
13F-HR  Documents Quarterly report filed by institutional managers, Holdings
Acc-no: 0001104659-23-089581 (34 Act)  Size: 5 KB
2023-08-10 028-01681
231157285
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000776867-23-000013 (34 Act)  Size: 88 MB
2023-08-07 001-08993
231145793
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000776867-23-000012 (34 Act)  Size: 1 MB
2023-08-07 001-08993
231145738
SC 13D  Documents General statement of acquisition of beneficial ownership
Acc-no: 0000950157-23-000723 Size: 213 KB
2023-06-30
SC TO-T/A  Documents [Amend] Tender offer statement by Third Party
Acc-no: 0001104659-23-076699 Size: 48 KB
2023-06-30
SC TO-T/A  Documents [Amend] Tender offer statement by Third Party
Acc-no: 0001104659-23-075017 Size: 35 KB
2023-06-27
11-K  Documents Annual report of employee stock purchase, savings and similar plans
Acc-no: 0000776867-23-000011 (34 Act)  Size: 2 MB
2023-06-15 001-08993
231017315
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001341401-23-000019 (34 Act)  Size: 10 KB
2023-06-08 005-36786
231001440
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0000776867-23-000010 (34 Act)  Size: 6 MB
2023-06-06 001-08993
23994904
SC TO-T  Documents Tender offer statement by Third Party
Acc-no: 0001104659-23-064953 Size: 751 KB
2023-05-26
8-K  Documents   Interactive Data Current report, item 5.07
Acc-no: 0000776867-23-000009 (34 Act)  Size: 196 KB
2023-05-25 001-08993
23961617
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0000776867-23-000008 (34 Act)  Size: 268 KB
2023-05-25 001-08993
23961445
13F-HR  Documents Quarterly report filed by institutional managers, Holdings
Acc-no: 0001104659-23-058759 (34 Act)  Size: 5 KB
2023-05-11 028-01681
23908859
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0000776867-23-000007 (34 Act)  Size: 77 KB
2023-05-10 001-08993
23904504
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000776867-23-000006 (34 Act)  Size: 17 MB
2023-05-09 001-08993
23900093
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000776867-23-000005 (34 Act)  Size: 947 KB
2023-05-09 001-08993
23900083
DEFR14A  Documents   Interactive Data Revised definitive proxy soliciting materials
Acc-no: 0001104659-23-042418 (34 Act)  Size: 4 MB
2023-04-06 001-08993
23804360
ARS  Documents Annual Report to Security Holders
Acc-no: 0001104659-23-042216 (34 Act)  Size: 1 MB
2023-04-05 001-08993
23803280
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0001104659-23-042136 (34 Act)  Size: 4 MB
2023-04-05 001-08993
23802416
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-23-030881 (34 Act)  Size: 13 KB
2023-03-10 005-36786
23721646
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000776867-23-000004 (34 Act)  Size: 34 MB
2023-02-27 001-08993
23675938
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0000776867-23-000003 (34 Act)  Size: 185 KB
2023-02-23 001-08993
23656017
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001082327-23-000014 (34 Act)  Size: 7 KB
2023-02-14 005-36786
23625321
13F-HR  Documents Quarterly report filed by institutional managers, Holdings
Acc-no: 0001104659-23-019698 (34 Act)  Size: 5 KB
2023-02-13 028-01681
23618550