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

Weiss 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 		– Sell
-120
Closed -$264K – 852
2026
Q1 		$264K Buy
+120
New +$257K ﹤0.01% 444
2016
Q4 		– Sell
-280
Closed -$232K – 271
2016
Q3 		$232K Buy
+280
New +$231K 0.04% 132

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

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

Weiss Asset Management sold out of White Mountains Insurance (WTM) in Q2 2026, closing a stake of 120 shares — an estimated $264K sold.

Weiss Asset Management first reported a position in WTM in Q3 2016 and held it in 2 quarters. The position peaked at $264K in Q1 2026. 356 funds tracked by Wall St. Rank hold WTM as of Q2 2026.

  • Weiss Asset Management reported no remaining White Mountains Insurance position as of Q2 2026 after selling out during the quarter.
  • Weiss Asset Management sold 120 White Mountains Insurance shares in Q2 2026, an estimated $264K.
  • Weiss Asset Management first reported a position in White Mountains Insurance in Q3 2016 and held it in 2 quarters.
  • Weiss Asset Management's White Mountains Insurance position peaked at $264K in Q1 2026.
  • 356 funds tracked by Wall St. Rank held White Mountains Insurance as of Q2 2026.

Based on Weiss Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.