Boston Partners
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Boston Partners’s White Mountains Insurance WTM Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$160M Buy
89,394
+4,158
+5% +$7.46M 0.18% 186
2025
Q1
$163M Sell
85,236
-209
-0.2% -$400K 0.2% 173
2024
Q4
$166M Buy
85,445
+348
+0.4% +$675K 0.2% 169
2024
Q3
$145M Sell
85,097
-2,574
-3% -$4.39M 0.17% 186
2024
Q2
$159M Sell
87,671
-2,923
-3% -$5.3M 0.2% 172
2024
Q1
$162M Sell
90,594
-1,958
-2% -$3.51M 0.19% 176
2023
Q4
$140M Sell
92,552
-21,947
-19% -$33.2M 0.19% 182
2023
Q3
$171M Sell
114,499
-3,506
-3% -$5.23M 0.24% 140
2023
Q2
$165M Sell
118,005
-7,532
-6% -$10.5M 0.22% 143
2023
Q1
$174M Buy
125,537
+1,217
+1% +$1.68M 0.24% 138
2022
Q4
$177M Sell
124,320
-3,692
-3% -$5.24M 0.24% 138
2022
Q3
$168M Sell
128,012
-5,203
-4% -$6.82M 0.25% 132
2022
Q2
$166M Sell
133,215
-2,193
-2% -$2.74M 0.23% 139
2022
Q1
$154M Sell
135,408
-2,428
-2% -$2.76M 0.19% 166
2021
Q4
$140M Sell
137,836
-5,996
-4% -$6.08M 0.17% 180
2021
Q3
$154M Buy
143,832
+3,373
+2% +$3.61M 0.2% 167
2021
Q2
$161M Buy
140,459
+3,264
+2% +$3.75M 0.21% 164
2021
Q1
$154M Buy
137,195
+5,199
+4% +$5.82M 0.21% 163
2020
Q4
$132M Sell
131,996
-85
-0.1% -$85.1K 0.21% 161
2020
Q3
$103M Sell
132,081
-5,387
-4% -$4.2M 0.19% 161
2020
Q2
$122M Sell
137,468
-6,943
-5% -$6.17M 0.22% 133
2020
Q1
$131M Sell
144,411
-2,926
-2% -$2.66M 0.26% 115
2019
Q4
$164M Sell
147,337
-10,402
-7% -$11.6M 0.22% 131
2019
Q3
$170M Sell
157,739
-7,184
-4% -$7.76M 0.23% 123
2019
Q2
$169M Sell
164,923
-2,329
-1% -$2.38M 0.22% 138
2019
Q1
$155M Sell
167,252
-8,095
-5% -$7.49M 0.21% 143
2018
Q4
$150M Buy
175,347
+12,696
+8% +$10.9M 0.22% 133
2018
Q3
$152M Buy
162,651
+2,361
+1% +$2.21M 0.18% 149
2018
Q2
$145M Buy
160,290
+1,959
+1% +$1.78M 0.17% 152
2018
Q1
$130M Sell
158,331
-3,128
-2% -$2.57M 0.16% 168
2017
Q4
$137M Buy
161,459
+31,537
+24% +$26.8M 0.16% 157
2017
Q3
$111M Buy
129,922
+2,417
+2% +$2.07M 0.14% 177
2017
Q2
$111M Sell
127,505
-453
-0.4% -$393K 0.14% 170
2017
Q1
$113M Buy
127,958
+2,979
+2% +$2.62M 0.14% 176
2016
Q4
$104M Sell
124,979
-194
-0.2% -$162K 0.14% 176
2016
Q3
$104M Sell
125,173
-1,883
-1% -$1.56M 0.15% 169
2016
Q2
$107M Sell
127,056
-3,881
-3% -$3.27M 0.15% 175
2016
Q1
$105M Sell
130,937
-6,454
-5% -$5.18M 0.15% 173
2015
Q4
$99.9M Sell
137,391
-1,050
-0.8% -$763K 0.14% 168
2015
Q3
$103M Sell
138,441
-4,334
-3% -$3.24M 0.16% 159
2015
Q2
$93.5M Buy
142,775
+1,538
+1% +$1.01M 0.13% 176
2015
Q1
$96.7M Buy
141,237
+11,613
+9% +$7.95M 0.14% 171
2014
Q4
$81.7M Sell
129,624
-3,980
-3% -$2.51M 0.12% 172
2014
Q3
$84.2M Sell
133,604
-3,276
-2% -$2.06M 0.14% 161
2014
Q2
$83.3M Sell
136,880
-7,204
-5% -$4.38M 0.14% 163
2014
Q1
$86.4M Sell
144,084
-5,273
-4% -$3.16M 0.16% 155
2013
Q4
$90.1M Sell
149,357
-8,607
-5% -$5.19M 0.18% 142
2013
Q3
$89.7M Sell
157,964
-1,133
-0.7% -$643K 0.22% 129
2013
Q2
$91.5M Buy
+159,097
New +$91.5M 0.25% 113