WHITE MOUNTAINS INSURANCE GROUP LTD reports

Company location: Hanover, NH
Fiscal year end: 31 December

WHITE MOUNTAINS INSURANCE GROUP LTD has filed 1,753 SEC EDGAR filings since 09 Feb 1994

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SEC filing history

Showing 201-225 of 1,000 matching filings.

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25

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9

10-K File 001-08993

10-K

Filing date: 27 Feb 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 24 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 24 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 24 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 24 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 23 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

3

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 23 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-08993

8-K

Filing date: 23 Feb 2023
Reporting date: 22 Feb 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SC 13G File 005-36786

SC 13G filing

Filing date: 14 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

13F-HR File 028-01681

13F-HR filing

Filing date: 13 Feb 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G

SC 13G

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36786

SEC SCHEDULE 13G

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36786

MS AMENDMENT

Filing date: 10 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36786

SCHEDULE 13G/A

Filing date: 09 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36786

SC 13G filing

Filing date: 08 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-08993

8-K

Filing date: 07 Feb 2023
Reporting date: 07 Feb 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SC 13G/A File 005-36786

SEC SCHEDULE 13G

Filing date: 06 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 03 Jan 2023
Reporting date: 01 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 03 Jan 2023
Reporting date: 01 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 03 Jan 2023
Reporting date: 01 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 03 Jan 2023
Reporting date: 01 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 29 Dec 2022
Reporting date: 28 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 29 Dec 2022
Reporting date: 28 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 27 Dec 2022
Reporting date: 22 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-08993

8-K

Filing date: 21 Dec 2022
Reporting date: 21 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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