M&T Bank’s White Mountains Insurance WTM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$373K Buy
170
+4
+2% +$8.56K ﹤0.01% 1255
2025
Q4
$345K Buy
+166
New +$325K ﹤0.01% 1319
2025
Q3
Sell
-125
Closed -$224K 1614
2025
Q2
$224K Sell
125
-16
-11% -$28.5K ﹤0.01% 1397
2025
Q1
$272K Buy
141
+1
+0.7% +$1.88K ﹤0.01% 1297
2024
Q4
$272K Buy
140
+11
+9% +$20.8K ﹤0.01% 1427
2024
Q3
$219K Sell
129
-4
-3% -$6.97K ﹤0.01% 1494
2024
Q2
$242K Buy
133
+12
+10% +$21.2K ﹤0.01% 1406
2024
Q1
$217K Buy
+121
New +$203K ﹤0.01% 1465
2023
Q3
Sell
-202
Closed -$281K 1680
2023
Q2
$281K Sell
202
-8
-4% -$11.3K ﹤0.01% 1333
2023
Q1
$289K Sell
210
-7
-3% -$10K ﹤0.01% 1314
2022
Q4
$307K Sell
217
-329
-60% -$446K ﹤0.01% 1289
2022
Q3
$712K Buy
546
+112
+26% +$145K ﹤0.01% 942
2022
Q2
$524K Sell
434
-26
-6% -$30.2K ﹤0.01% 990
2022
Q1
$522K Buy
460
+64
+16% +$67K ﹤0.01% 965
2021
Q4
$401K Buy
396
+25
+7% +$26.4K ﹤0.01% 1119
2021
Q3
$396K Sell
371
-16
-4% -$17.9K ﹤0.01% 1113
2021
Q2
$444K Sell
387
-15
-4% -$17.5K ﹤0.01% 1088
2021
Q1
$448K Sell
402
-220
-35% -$246K ﹤0.01% 1053
2020
Q4
$622K Sell
622
-51
-8% -$48K ﹤0.01% 945
2020
Q3
$524K Sell
673
-30
-4% -$25.9K ﹤0.01% 962
2020
Q2
$624K Sell
703
-9
-1% -$8.11K ﹤0.01% 859
2020
Q1
$648K Buy
712
+24
+3% +$24.8K ﹤0.01% 817
2019
Q4
$766K Sell
688
-36
-5% -$39.3K ﹤0.01% 706
2019
Q3
$782K Buy
724
+1
+0.1% +$1.07K ﹤0.01% 809
2019
Q2
$739K Sell
723
-56
-7% -$53.9K ﹤0.01% 836
2019
Q1
$721K Sell
779
-70
-8% -$63.4K ﹤0.01% 829
2018
Q4
$728K Sell
849
-376
-31% -$335K ﹤0.01% 777
2018
Q3
$1.15M Sell
1,225
-123
-9% -$114K 0.01% 727
2018
Q2
$1.22M Sell
1,348
-34
-2% -$29.9K 0.01% 698
2018
Q1
$1.14M Sell
1,382
-4
-0.3% -$3.3K 0.01% 721
2017
Q4
$1.18M Buy
1,386
+44
+3% +$38.5K 0.01% 706
2017
Q3
$1.15M Buy
1,342
+31
+2% +$26.7K 0.01% 703
2017
Q2
$1.14M Sell
1,311
-14
-1% -$12.1K 0.01% 704
2017
Q1
$1.17M Buy
1,325
+185
+16% +$166K 0.01% 700
2016
Q4
$954K Sell
1,140
-237
-17% -$199K 0.01% 776
2016
Q3
$1.14M Sell
1,377
-107
-7% -$88.2K 0.01% 731
2016
Q2
$1.25M Sell
1,484
-11
-0.7% -$8.97K 0.01% 702
2016
Q1
$1.2M Buy
1,495
+99
+7% +$74.1K 0.01% 717
2015
Q4
$1.01M Buy
1,396
+87
+7% +$66.6K 0.01% 786
2015
Q3
$979K Sell
1,309
-27
-2% -$19.4K 0.01% 822
2015
Q2
$875K Buy
1,336
+188
+16% +$125K 0.01% 945
2015
Q1
$787K Sell
1,148
-240
-17% -$158K ﹤0.01% 974
2014
Q4
$876K Sell
1,388
-931
-40% -$592K 0.01% 927
2014
Q3
$1.46M Sell
2,319
-606
-21% -$378K 0.01% 730
2014
Q2
$1.78M Sell
2,925
-928
-24% -$553K 0.07% 198
2014
Q1
$2.31M Buy
3,853
+45
+1% +$26.3K 0.1% 151
2013
Q4
$2.3M Sell
3,808
-146
-4% -$86K 0.1% 152
2013
Q3
$2.24M Sell
3,954
-132
-3% -$76.7K 0.11% 145
2013
Q2
$2.35M Buy
+4,086
New +$2.38M 0.11% 140

Other funds holding WTM

M&T Bank's WTM Position: Q1 2026 in Review

M&T Bank increased its White Mountains Insurance (WTM) stake by 2.4% in Q1 2026, buying an estimated $8.56K and bringing the position to 170 shares worth $373K. The position accounts for ﹤0.01% of the portfolio, ranked #1255.

M&T Bank first reported a position in WTM in Q2 2013 and has held it in 49 quarters since. The position peaked at $2.35M in Q2 2013. 367 funds tracked by Wall St. Rank hold WTM as of Q1 2026.

  • M&T Bank held 170 shares of White Mountains Insurance worth $373K as of Q1 2026.
  • M&T Bank bought 4 White Mountains Insurance shares in Q1 2026, an estimated $8.56K.
  • White Mountains Insurance made up ﹤0.01% of M&T Bank's portfolio in Q1 2026, its #1255 holding.
  • M&T Bank first reported a position in White Mountains Insurance in Q2 2013 and has held it in 49 quarters since.
  • M&T Bank's White Mountains Insurance position peaked at $2.35M in Q2 2013.
  • 367 funds tracked by Wall St. Rank held White Mountains Insurance as of Q1 2026.

Based on M&T Bank's 13F filing for Q1 2026, filed 12 May 2026.