WHITE MOUNTAINS INSURANCE GROUP LTD - WTM

Sector: Financial · Industry: Fire, Marine & Casualty Insurance
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Quarter snapshot

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Q3 2026 · Q2 2026
Value (USD)
Total reported value ($000)
$4.569B
QoQ value delta ($000)
+$762K (+0.02%)
Implied price effect (QoQ)
-0.29%
Shares
Total shares
2,209,845
QoQ shares delta
+6,747 (+0.31%)
Total shares held by funds (by quarter)
Shares (left)

Fund holders include prior positions carried forward until a new 13F confirms a change. Reported holders have reported a position in this security for that quarter; this is not the total number of 13F filers.

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Top holders (Q3 2026)

Top 25 only Full list
Partial Q3 2026 data: 110 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.
Manager Value ($000) Shares % of 13F
DIMENSIONAL FUND ADVISORS LP 329,577 158,954 0.06%
Neuberger Berman Group LLC 247,025 119,141 0.16%
BlackRock, Inc. 244,392 117,871 0.0%
River Road Asset Management, LLC 240,264 115,880 2.67%
VANGUARD PORTFOLIO MANAGEMENT LLC 232,155 111,969 0.01%
VANGUARD CAPITAL MANAGEMENT LLC 222,845 107,479 0.0%
FULLER & THALER ASSET MANAGEMENT, INC. 211,260 101,892 0.58%
COOKE & BIELER LP 174,971 87,203 2.75%
Wallace Capital Management Inc. 166,009 80,067 18.2%
FIDUCIARY MANAGEMENT INC /WI/ 137,984 66,550 1.96%
GENDELL JEFFREY L 122,833 59,243 1.08%
Boston Partners 115,277 55,569 0.1%
LONDON CO OF VIRGINIA 112,075 54,025 0.64%
STATE STREET CORP 104,202 50,257 0.0%
GEODE CAPITAL MANAGEMENT, LLC 102,474 49,412 0.01%
MORGAN STANLEY 97,175 46,866 0.01%
REINHART PARTNERS, LLC. 88,203 43,959 2.15%
T. Rowe Price Investment Management, Inc. 70,987 34,237 0.05%
LORD, ABBETT & CO. LLC 68,067 32,829 0.19%
AMERICAN CENTURY COMPANIES INC 64,499 31,108 0.03%
NORGES BANK 57,963 27,956 0.01%
Cannell & Spears LLC 57,177 27,577 1.02%
BANK OF AMERICA CORP /DE/ 51,892 25,028 0.0%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 48,735 23,505 0.01%
Mraz, Amerine & Associates, Inc. 44,438 22,147 6.94%