Two Sigma Investments
WTM icon

Two Sigma Investments’s White Mountains Insurance WTM Stock Holding History

Two Sigma Investments’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
2025
Q2 		– Sell
-300
Closed -$578K – 3581
2025
Q1 		$578K Sell
300
-170
-36% -$320K ﹤0.01% 2461
2024
Q4 		$914K Buy
470
+114
+32% +$215K ﹤0.01% 2236
2024
Q3 		$604K Buy
356
+3
+0.8% +$5.23K ﹤0.01% 2377
2024
Q2 		$642K Sell
353
-569
-62% -$1.01M ﹤0.01% 2237
2024
Q1 		$1.65M Buy
922
+500
+118% +$838K ﹤0.01% 1612
2023
Q4 		$635K Buy
+422
New +$627K ﹤0.01% 2336
2023
Q3 		– Sell
-256
Closed -$356K – 3249
2023
Q2 		$356K Sell
256
-513
-67% -$722K ﹤0.01% 2466
2023
Q1 		$1.06M Buy
769
+200
+35% +$287K ﹤0.01% 1841
2022
Q4 		$805K Hold
569
– – ﹤0.01% 1814
2022
Q3 		$741K Buy
+569
New +$736K ﹤0.01% 1593
2021
Q2 		– Sell
-1,455
Closed -$1.62M – 4630
2021
Q1 		$1.62M Buy
+1,455
New +$1.63M ﹤0.01% 1871
2018
Q1 		– Sell
-3,938
Closed -$3.35M – 3561
2017
Q4 		$3.35M Buy
+3,938
New +$3.44M 0.01% 1122
2014
Q2 		– Sell
-2,300
Closed -$1.38M – 2380
2014
Q1 		$1.38M Sell
2,300
-1,852
-45% -$1.08M 0.01% 1076
2013
Q4 		$2.5M Buy
4,152
+3,540
+578% +$2.09M 0.01% 909
2013
Q3 		$347K Sell
612
-4,654
-88% -$2.7M ﹤0.01% 1439
2013
Q2 		$3.03M Buy
+5,266
New +$3.07M 0.02% 700

Other funds holding WTM

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RRAM
River Road Asset Management Louisville, Kentucky $8.99B AUM 12.83% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
WCM
Wallace Capital Management Dallas, Texas $871M AUM 13.69% 1-Year Est. Return
CB
Cooke & Bieler Philadelphia, Pennsylvania $8.84B AUM 6.92% 1-Year Est. Return

Two Sigma Investments's WTM Position: Q2 2025 in Review

Two Sigma Investments sold out of White Mountains Insurance (WTM) in Q2 2025, closing a stake of 300 shares — an estimated $578K sold.

Two Sigma Investments first reported a position in WTM in Q2 2013 and held it in 16 quarters. The position peaked at $3.35M in Q4 2017. 325 funds tracked by Wall St. Rank hold WTM as of Q2 2025.

  • Two Sigma Investments reported no remaining White Mountains Insurance position as of Q2 2025 after selling out during the quarter.
  • Two Sigma Investments sold 300 White Mountains Insurance shares in Q2 2025, an estimated $578K.
  • Two Sigma Investments first reported a position in White Mountains Insurance in Q2 2013 and held it in 16 quarters.
  • Two Sigma Investments's White Mountains Insurance position peaked at $3.35M in Q4 2017.
  • 325 funds tracked by Wall St. Rank held White Mountains Insurance as of Q2 2025.

Based on Two Sigma Investments's 13F filing for Q2 2025, filed 14 Aug 2025.