WHITE MOUNTAINS INSURANCE GROUP LTD - Common Stock (WTM)

Q2 2025 13F Holders as of 30 Jun 2025

Type / Class
Equity / Common Stock
Shares outstanding
2.55M
Number of holders
323
Total 13F shares, excl. options
2.32M
Shares change
+42.9K
Total reported value, excl. options
$4.16B
Value change
+$76.3M
Number of buys
136
Number of sells
-135
Price
$1,795.72

Significant Holders of WHITE MOUNTAINS INSURANCE GROUP LTD - Common Stock (WTM) as of Q2 2025

349 filings reported holding WTM - WHITE MOUNTAINS INSURANCE GROUP LTD - Common Stock as of Q2 2025.
WHITE MOUNTAINS INSURANCE GROUP LTD - Common Stock (WTM) has 323 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 2.32M shares of 2.55M outstanding shares and own 90.94% of the company stock.
Largest 10 shareholders include VANGUARD GROUP INC (249K shares), MORGAN STANLEY (165K shares), DIMENSIONAL FUND ADVISORS LP (156K shares), BlackRock, Inc. (113K shares), River Road Asset Management, LLC (110K shares), FULLER & THALER ASSET MANAGEMENT, INC. (101K shares), Boston Partners (89.4K shares), NEUBERGER BERMAN GROUP LLC (83.7K shares), Wallace Capital Management Inc. (79K shares), and COOKE & BIELER LP (76.8K shares).
This table shows the top 323 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
Investor Option Weight % Change % Value $ * Price $ Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.