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WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) Ownership Summary
Institutional Holders
Total Number of Holders 339
% of Shares Outstanding 90.20%
Total Shares Held 2,316,649
Total Value of Holdings $3,970,690,053.02
Net Activity (111,953)
 
Top 5 Holders Shares Held Shares Changed
VANGUARD GROUP INC 251,035 (895)
MORGAN STANLEY 184,935 (595)
DIMENSIONAL FUND ADVISORS LP 159,561 (2,357)
FULLER & THALER ASSET MANAGEMENT, INC. 129,283 (1,631)
BLACKROCK INC. 116,455 1,482

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades01
Number of Buys01
Number of Sells00
Net Activity 0 1,000
 
Top 5 TradesShares Traded Date
HARRISON GILES E 0 6/10/2024
HARRISON GILES E1,0006/10/2024
CAMPBELL REID TARLTON1655/23/2024
CARLSON PETER M1655/23/2024
CHOKSI MARY C1655/23/2024

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5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  02/13/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   FULLER & THALER ASSET MANAGEMENT, INC.  02/12/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   MORGAN STANLEY  02/09/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   DIMENSIONAL FUND ADVISORS LP  02/09/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   RIVER ROAD ASSET MANAGEMENT, LLC  06/08/23   File this document to a folder.