Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Hanover, NH
SEC filing record 1 source field available
Fiscal year end
31 December
WHITE MOUNTAINS INSURANCE GROUP LTD has filed 1,753 SEC EDGAR filings since 09 Feb 1994

SEC filing history

Showing 876-900 of 1,000 matching filings.

Per page
25
Current page
36
SC 13G/A

SC 13G/A

Filing date
03 Feb 2012
Reporting date
Not listed
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8-K File 001-08993

8-K

Filing date
03 Feb 2012
Reporting date
03 Feb 2012
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5

PRIMARY DOCUMENT

Filing date
02 Feb 2012
Reporting date
31 Dec 2011
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5

PRIMARY DOCUMENT

Filing date
02 Feb 2012
Reporting date
31 Dec 2011
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SC 13G/A File 005-36786

SC 13G/A

Filing date
01 Feb 2012
Reporting date
Not listed
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SC 13D/A File 005-36786

SC 13D/A

Filing date
20 Jan 2012
Reporting date
Not listed
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UPLOAD

UPLOAD filing

Filing date
11 Jan 2012
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
03 Jan 2012
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
28 Dec 2011
Reporting date
27 Dec 2011
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4

PRIMARY DOCUMENT

Filing date
21 Dec 2011
Reporting date
19 Dec 2011
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4

PRIMARY DOCUMENT

Filing date
21 Dec 2011
Reporting date
19 Dec 2011
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UPLOAD

UPLOAD filing

Filing date
13 Dec 2011
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
05 Dec 2011
Reporting date
02 Dec 2011
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4

PRIMARY DOCUMENT

Filing date
01 Dec 2011
Reporting date
29 Nov 2011
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8-K File 001-08993

8-K

Filing date
22 Nov 2011
Reporting date
16 Nov 2011
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8-K File 001-08993

8-K

Filing date
18 Nov 2011
Reporting date
17 Nov 2011
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SC TO-I/A File 005-36786

AMENDMENT NO. 3

Filing date
18 Nov 2011
Reporting date
Not listed
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SC TO-I/A File 005-36786

AMENDMENT NO. 2

Filing date
15 Nov 2011
Reporting date
Not listed
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13F-HR File 028-01681

13F-HR

Filing date
14 Nov 2011
Reporting date
30 Sep 2011
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8-K File 001-08993

8-K

Filing date
28 Oct 2011
Reporting date
28 Oct 2011
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SC TO-I/A File 005-36786

SC TO-I/A

Filing date
19 Oct 2011
Reporting date
Not listed
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SC TO-I File 005-36786

SC TO-I

Filing date
17 Oct 2011
Reporting date
Not listed
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SC TO-C File 005-36786

SCHEDULE TO

Filing date
14 Oct 2011
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
13 Oct 2011
Reporting date
11 Oct 2011
SEC evidence
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