Vanguard Asset Management
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Vanguard Asset Management’s White Mountains Insurance WTM Stock Holding History

Vanguard Asset Management’s Portfolio WTM Stock Details WTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.96M Buy
2,392
+67
+3% +$143K ﹤0.01% 1048
2026
Q1 		$5.11M Buy
+2,325
New +$4.98M ﹤0.01% 942

Other funds holding WTM

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RRAM
River Road Asset Management Louisville, Kentucky $8.99B AUM 12.83% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
CB
Cooke & Bieler Philadelphia, Pennsylvania $8.65B AUM 9.66% 1-Year Est. Return
WCM
Wallace Capital Management Dallas, Texas $912M AUM 21.45% 1-Year Est. Return
FMI
Fiduciary Management Inc Milwaukee, Wisconsin $7.03B AUM 11.68% 1-Year Est. Return

Vanguard Asset Management's WTM Position: Q2 2026 in Review

Vanguard Asset Management increased its White Mountains Insurance (WTM) stake by 2.9% in Q2 2026, buying an estimated $143K and bringing the position to 2,392 shares worth $4.96M. The position accounts for ﹤0.01% of the portfolio, ranked #1048.

Vanguard Asset Management first reported a position in WTM in Q1 2026 and has held it in 2 quarters since. The position peaked at $5.11M in Q1 2026. 350 funds tracked by Wall St. Rank hold WTM as of Q2 2026.

  • Vanguard Asset Management held 2,392 shares of White Mountains Insurance worth $4.96M as of Q2 2026.
  • Vanguard Asset Management bought 67 White Mountains Insurance shares in Q2 2026, an estimated $143K.
  • White Mountains Insurance made up ﹤0.01% of Vanguard Asset Management's portfolio in Q2 2026, its #1048 holding.
  • Vanguard Asset Management first reported a position in White Mountains Insurance in Q1 2026 and has held it in 2 quarters since.
  • Vanguard Asset Management's White Mountains Insurance position peaked at $5.11M in Q1 2026.
  • 350 funds tracked by Wall St. Rank held White Mountains Insurance as of Q2 2026.

Based on Vanguard Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.