05/31/2024 3:01 PM | White Mountains Insurance Group (Filer)
| Form 11-K Annual reports of employee stock purchase, savings and similar plans pursuant to Section 15(d) | |
05/24/2024 11:13 AM | Hicks Weston M (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:13 AM | CAMPBELL REID TARLTON (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:14 AM | Carlson Peter M (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:14 AM | CHOKSI MARY C (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:15 AM | Dillon Margaret (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:15 AM | Gelston Philip A (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
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05/24/2024 11:16 AM | SHANK SUZANNE F. (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:16 AM | Tanner David Allen (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/24/2024 11:17 AM | White Mountains Insurance Group (Issuer) Yi Steven (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/09/2024 6:44 PM | MediaAlpha, Inc. (Subject) White Mountains Insurance Group (Filed by)
| Form SC 13D/A | |
05/09/2024 4:04 PM | MediaAlpha, Inc. (Issuer) White Mountains Insurance Group (Reporting) WM Hinson Ltd. (0001979065) (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
05/09/2024 3:17 PM | White Mountains Insurance Group (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
04/10/2024 3:10 PM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
04/04/2024 5:04 AM | White Mountains Insurance Group (Filer)
| Form DEF 14A | |
04/04/2024 5:05 AM | White Mountains Insurance Group (Filer)
| Form ARS | |
03/21/2024 10:36 AM | CAMPBELL REID TARLTON (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/26/2024 7:58 AM | White Mountains Insurance Group (Filer)
| Form 10-K Annual report pursuant to Section 13 or 15(d) | |
02/23/2024 8:26 PM | CAMPBELL REID TARLTON (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 8:27 PM | Hildreth Michaela (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 8:27 PM | SEELIG ROBERT LAWRENCE (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 8:28 PM | Caffrey Liam P (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 8:28 PM | Rountree George Manning (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 7:19 AM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
02/13/2024 3:22 PM | White Mountains Insurance Group (Filer)
| Form 13F-HR Initial Quarterly Form 13F Holdings report filed by institutional managers | |
02/12/2024 4:45 PM | FULLER & THALER ASSET MANAGEMENT, INC. (Filed by) White Mountains Insurance Group (Subject)
| Form SC 13G/A | |
02/09/2024 11:57 AM | MORGAN STANLEY (Filed by) White Mountains Insurance Group (Subject)
| Form SC 13G/A | |
02/07/2024 7:06 AM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
01/02/2024 10:59 AM | Hildreth Michaela (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/02/2024 10:59 AM | SEELIG ROBERT LAWRENCE (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/02/2024 11:00 AM | CAMPBELL REID TARLTON (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
01/02/2024 11:01 AM | Rountree George Manning (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
12/21/2023 3:25 PM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
12/01/2023 4:10 PM | Hildreth Michaela (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/20/2023 1:39 PM | Hicks Weston M (Reporting) White Mountains Insurance Group (Issuer)
| Form 4/A | |
11/20/2023 7:58 AM | Hicks Weston M (Reporting) White Mountains Insurance Group (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
11/09/2023 6:15 AM | White Mountains Insurance Group (Filer)
| Form 13F-HR Initial Quarterly Form 13F Holdings report filed by institutional managers | |
11/06/2023 7:33 AM | White Mountains Insurance Group (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
11/06/2023 7:22 AM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
10/20/2023 7:14 AM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/10/2023 7:18 AM | White Mountains Insurance Group (Filer)
| Form 13F-HR Initial Quarterly Form 13F Holdings report filed by institutional managers | |
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08/07/2023 7:48 AM | White Mountains Insurance Group (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
08/07/2023 7:19 AM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/30/2023 7:06 AM | MediaAlpha, Inc. (Subject) White Mountains Insurance Group (Filed by)
| Form SC TO-T/A | |
06/30/2023 7:13 AM | MediaAlpha, Inc. (Issuer) White Mountains Insurance Group (Reporting) WM Hinson Ltd. (0001979065) (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/30/2023 7:15 AM | MediaAlpha, Inc. (Subject) White Mountains Insurance Group (Filed by)
| Form SC 13D | |
06/27/2023 7:20 AM | MediaAlpha, Inc. (Subject) White Mountains Insurance Group (Filed by)
| Form SC TO-T/A | |
06/08/2023 12:29 PM | River Road Asset Management, LLC (Filed by) White Mountains Insurance Group (Subject)
| Form SC 13G/A | |
06/06/2023 6:59 AM | White Mountains Insurance Group (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |