WTM·G9618E107·US·equity·Financial Services - Insurance - Property & Casualty-13D/G
WTM (White Mountains Insurance Group) is held by 170 institutional investors as of Q4 2025. Largest holders: VANGUARD GROUP INC ($489.8M), DIMENSIONAL FUND ADVISORS LP ($325.4M), Neuberger Berman Group LLC ($269.4M). Net institutional sentiment: Mixed.
See how WTM's score breaks down across 4 SEC sources
Fund | Action | Shares | Value | Weight | Est. P&L | Conviction |
|---|---|---|---|---|---|---|
Decreased | 235,698(-4.6%) | $489.8M | 0.0% | +30.23% | 0 | |
Decreased | 156,604(-0.4%) | $325.4M | 0.1% | +60.39% | 0 | |
Increased | 129,654(+12.7%) | $269.4M | 0.2% | +22.86% | 42 | |
Increased | 120,880(+10.3%) | $251.2M | 2.8% | +110.95% | 58 | |
Decreased | 112,289(-0.3%) | $233.3M | 0.0% | +14.88% | 0 | |
Increased | 108,172(+0.1%) | $224.8M | 0.8% | +104.17% | 43 | |
Decreased | 106,579(-1.2%) | $221.5M | 2.3% | +21.61% | 0 | |
Decreased | 90,333(-4.3%) | $187.7M | 2.1% | +50.85% | 0 | |
Decreased | 82,151(-40.8%) | $170.7M | 0.0% | +21.94% | 0 | |
Decreased | 76,911(-8.9%) | $159.7M | 0.2% | +140.23% | 0 | |
Decreased | 58,697(-12.1%) | $122M | 0.7% | +117.85% | 0 | |
Decreased | 50,663(-6.9%) | $105.3M | 0.0% | +43.48% | 0 | |
Decreased | 41,518(-1.4%) | $86.3M | 0.0% | +110.45% | 0 | |
Decreased | 28,809(-25.8%) | $59.9M | 0.0% | +14.88% | 0 | |
Decreased | 23,969(-18.4%) | $49.8M | 0.0% | +14.88% | 0 | |
Decreased | 23,238(-4.1%) | $48.3M | 0.0% | +128.08% | 0 | |
Decreased | 20,193(-36.3%) | $41.2M | 0.1% | +32.72% | 0 | |
Increased | 19,713(+16.3%) | $41M | 0.2% | +29.46% | 40 | |
Decreased | 18,956(-6.8%) | $39.4M | 0.1% | +50.45% | 0 | |
Decreased | 16,667(-6.1%) | $34.6M | 0.0% | +93.71% | 0 | |
Decreased | 15,928(-17.1%) | $33.1M | 0.0% | +51.78% | 0 | |
Decreased | 15,798(-10.2%) | $32.8M | 0.0% | +63.53% | 0 | |
Increased | 13,121(+0.3%) | $27.3M | 0.4% | +24.61% | 34 | |
Decreased | 10,682(-19.3%) | $22.2M | 0.0% | +15.22% | 0 | |
Decreased | 9,141(-2.3%) | $19M | 0.0% | +47.55% | 0 | |
Decreased | 8,831(-12.6%) | $18.4M | 0.0% | +84.62% | 0 | |
Increased | 8,593(+242.1%) | $17.9M | 0.0% | +20.02% | 46 | |
Increased | 7,916(+47.0%) | $16.5M | 0.0% | +28.36% | 39 | |
Increased | 7,655(+1093x) | $15.9M | 0.0% | +6.59% | 45 | |
Increased | 7,271(+20.1%) | $15.1M | 0.0% | +23.74% | 33 | |
Decreased | 6,752(-5.0%) | $14M | 0.0% | +48.61% | 0 | |
Decreased | 6,716(-2.6%) | $14M | 0.1% | +30.88% | 0 | |
Decreased | 6,716(-27.3%) | $14M | 0.0% | +88.15% | 0 | |
Decreased | 6,296(-26.2%) | $13.1M | 0.0% | +32.80% | 0 | |
Decreased | 6,001(-50.3%) | $12.5M | 0.0% | +32.75% | 0 | |
Decreased | 5,947(-5.6%) | $12.4M | 0.1% | +75.91% | 0 | |
Decreased | 5,260(-11.0%) | $10.9M | 0.0% | +18.61% | 0 | |
Unchanged | 5,193 | $10.8M | 0.1% | +108.26% | 0 | |
Increased | 5,086(+2.8%) | $10.6M | 0.0% | +136.66% | 29 | |
New | 4,555 | $9.5M | 0.0% | +6.57% | 38 | |
Decreased | 4,476(-24.3%) | $9.3M | 0.0% | +51.78% | 0 | |
Decreased | 4,165(-1.6%) | $8.7M | 0.0% | +123.03% | 0 | |
Increased | 3,543(+82.6%) | $7.4M | 0.0% | +27.98% | 42 | |
Increased | 3,475(+0.5%) | $7.2M | 0.0% | +16.37% | 27 | |
Increased | 3,415(+10.1%) | $7.1M | 0.0% | +58.42% | 30 | |
Increased | 3,340(+117.5%) | $6.9M | 0.0% | +17.02% | 44 | |
Decreased | 3,226(-3.0%) | $6.7M | 0.0% | +93.84% | 0 | |
Increased | 3,053(+0.8%) | $6.3M | 0.0% | +82.91% | 27 | |
Decreased | 3,037(-25.0%) | $6.3M | 0.0% | +112.00% | 0 | |
Decreased | 2,995(-9.7%) | $6.2M | 0.0% | +36.58% | 0 | |
Increased | 2,935(+2.9%) | $6.1M | 0.0% | +36.80% | 28 | |
Decreased | 2,792(-11.1%) | $5.8M | 0.0% | +43.80% | 0 | |
Decreased | 2,513(-0.2%) | $5.2M | 0.0% | +119.72% | 0 | |
Increased | 2,457(+1.0%) | $5.1M | 0.0% | +150.13% | 27 | |
Decreased | 2,123(-2.3%) | $4.4M | 0.0% | +131.88% | 0 | |
Decreased | 1,965(-14.8%) | $4.1M | 0.0% | +51.51% | 0 | |
New | 18,549 | $3.9M | 0.0% | +6.57% | 37 | |
Increased | 1,849(+24.2%) | $3.8M | 0.0% | +16.57% | 32 | |
Decreased | 1,806(-58.2%) | $3.8M | 0.0% | +22.99% | 0 | |
Decreased | 1,707(-64.6%) | $3.5M | 0.0% | +23.81% | 0 | |
Decreased | 1,501(-18.9%) | $3.1M | 0.0% | +32.03% | 0 | |
Increased | 1,610(+19.0%) | $3.1M | 0.0% | +24.92% | 31 | |
Decreased | 1,447(-1.2%) | $3M | 0.0% | +34.45% | 0 | |
Decreased | 1,408(-20.9%) | $2.9M | 0.0% | +43.92% | 0 | |
Decreased | 1,312(-0.3%) | $2.7M | 0.0% | +143.96% | 0 | |
Increased | 1,193(+324.6%) | $2.5M | 0.0% | +8.73% | 42 | |
Decreased | 1,135(-1.7%) | $2.4M | 0.0% | +88.66% | 0 | |
Unchanged | 1,123 | $2.3M | 0.0% | +40.40% | 0 | |
New | 1,098 | $2.3M | 0.0% | +6.57% | 36 | |
Decreased | 1,097(-38.0%) | $2.3M | 0.0% | +18.56% | 0 | |
Decreased | 1,070(-4.2%) | $2.2M | 0.0% | +17.78% | 0 | |
Decreased | 1,000(-14.2%) | $2.1M | 0.0% | +40.57% | 0 | |
Increased | 998(+18.9%) | $2.1M | 0.0% | +27.19% | 31 | |
Increased | 939(+50.2%) | $2M | 0.0% | +12.93% | 36 | |
Decreased | 934(-5.0%) | $1.9M | 0.0% | +59.89% | 0 | |
Increased | 913(+260.9%) | $1.9M | 0.0% | +25.19% | 42 | |
Increased | 906(+51.5%) | $1.9M | 0.0% | +22.51% | 36 | |
Increased | 906(+10.8%) | $1.9M | 0.0% | +30.26% | 29 | |
Decreased | 895(-60.1%) | $1.9M | 0.0% | +41.68% | 0 | |
Decreased | 856(-8.3%) | $1.8M | 0.0% | +19.89% | 0 | |
New | 811 | $1.7M | 0.0% | +6.57% | 36 | |
Decreased | 807(-15.5%) | $1.7M | 0.0% | +128.14% | 0 | |
Unchanged | 792 | $1.6M | 0.0% | +49.22% | 0 | |
Decreased | 776(-4.7%) | $1.6M | 0.0% | +111.37% | 0 | |
Decreased | 736(-37.3%) | $1.5M | 0.0% | +89.88% | 0 | |
Unchanged | 734 | $1.5M | 0.0% | +139.40% | 0 | |
Decreased | 718(-5.8%) | $1.5M | 0.0% | +127.89% | 0 | |
Increased | 715(+386.4%) | $1.5M | 0.0% | +10.00% | 41 | |
Increased | 706(+296.6%) | $1.5M | 0.0% | +9.37% | 41 | |
Decreased | 705(-0.3%) | $1.5M | 0.0% | +56.61% | 0 | |
Increased | 665(+8.3%) | $1.4M | 0.0% | +26.03% | 28 | |
Increased | 638(+2.4%) | $1.3M | 0.0% | +24.84% | 26 | |
Decreased | 623(-96.4%) | $1.3M | 0.0% | +76.90% | 0 | |
Decreased | 595(-1.6%) | $1.2M | 0.0% | +17.40% | 0 | |
Increased | 570(+19.8%) | $1.2M | 0.0% | +22.11% | 30 | |
Unchanged | 560 | $1.2M | 0.0% | +23.52% | 0 | |
Increased | 559(+87.0%) | $1.2M | 0.0% | +15.31% | 39 | |
Decreased | 559(-41.3%) | $1.2M | 0.0% | +25.56% | 0 | |
Increased | 555(+3.9%) | $1.2M | 0.0% | +41.50% | 26 | |
Increased | 536(+22.4%) | $1.1M | 0.0% | +44.44% | 30 | |
Decreased | 532(-16.4%) | $1.1M | 0.0% | +45.11% | 0 | |
Decreased | 475(-4.0%) | $987,179 | 0.0% | +24.09% | 0 | |
Increased | 455(+16.1%) | $945,506 | 0.0% | +33.55% | 29 | |
Decreased | 443(-2.0%) | $920,567 | 0.0% | +23.29% | 0 | |
Decreased | 431(-0.2%) | $895,631 | 0.0% | +15.20% | 0 | |
Decreased | 410(-0.7%) | $852,005 | 0.0% | +44.62% | 0 | |
Increased | 402(+87.8%) | $835,389 | 0.0% | +21.43% | 39 | |
Increased | 400(+1.0%) | $831,212 | 0.0% | +21.67% | 25 | |
Increased | 400(+14.3%) | $831,212 | 0.0% | +34.02% | 28 | |
Increased | 397(+13.1%) | $825,507 | 0.0% | +26.12% | 28 | |
Unchanged | 364 | $756,682 | 0.0% | +26.85% | 0 | |
New | 360 | $748,091 | 0.0% | +6.57% | 34 | |
Increased | 359(+22.9%) | $746,014 | 0.0% | +17.52% | 30 | |
Decreased | 354(-4.3%) | $735,622 | 0.0% | +103.57% | 0 | |
Increased | 300(+36.4%) | $623,515 | 0.0% | +24.12% | 32 | |
Decreased | 279(-6.4%) | $579,770 | 0.0% | +49.46% | 0 | |
Decreased | 271(-9.7%) | $563,420 | 0.0% | +78.87% | 0 | |
Increased | 261(+2.8%) | $542,367 | 0.0% | +33.33% | 25 | |
Increased | 253(+5.4%) | $525,742 | 0.0% | +69.76% | 26 | |
Increased | 243(+16.8%) | $504,961 | 0.0% | +48.70% | 28 | |
Increased | 237(+1.3%) | $492,493 | 0.0% | +28.31% | 24 | |
New | 229 | $475,869 | 0.0% | +6.57% | 33 | |
Increased | 227(+8.1%) | $464,739 | 0.0% | +33.79% | 26 | |
Increased | 213(+0.9%) | $442,620 | 0.0% | +58.66% | 24 | |
Decreased | 204(-66.5%) | $423,918 | 0.0% | +32.03% | 0 | |
Decreased | 200(-60.0%) | $415,606 | 0.0% | +65.48% | 0 | |
Increased | 196(+15.3%) | $407,294 | 0.0% | +15.34% | 27 | |
Decreased | 189(-6.4%) | $392,748 | 0.0% | +17.11% | 0 | |
Decreased | 180(-4.3%) | $374,046 | 0.0% | +22.94% | 0 | |
Increased | 176(+5.4%) | $365,733 | 0.0% | +105.91% | 25 | |
Increased | 171(+14.8%) | $356,245 | 0.0% | +17.25% | 27 | |
Unchanged | 157 | $326,251 | 0.0% | +30.39% | 0 | |
Unchanged | 150 | $311,705 | 0.0% | +56.90% | 0 | |
Decreased | 138(-44.6%) | $286,768 | 0.0% | +58.90% | 0 | |
Unchanged | 134 | $278,456 | 0.0% | +48.26% | 0 | |
Decreased | 132(-98.2%) | $274,300 | 0.0% | +31.41% | 0 | |
Increased | 130(+3.2%) | $270,144 | 0.0% | +31.07% | 24 | |
New | 124 | $257,676 | 0.0% | +6.57% | 32 | |
Increased | 124(+0.8%) | $257,675 | 0.0% | +63.55% | 23 | |
Increased | 123(+2.5%) | $255,598 | 0.0% | +14.94% | 24 | |
Increased | 122(+4.3%) | $253,520 | 0.0% | +30.75% | 24 | |
Increased | 121(+0.8%) | $251,518 | 0.0% | +24.00% | 23 | |
New | 117 | $243,130 | 0.0% | +6.57% | 32 | |
New | 115 | $238,973 | 0.0% | +6.57% | 32 | |
New | 112 | $232,739 | 0.0% | +6.57% | 32 | |
New | 110 | $228,583 | 0.0% | +6.57% | 32 | |
New | 100 | $207,803 | 0.0% | +6.57% | 32 | |
New | 100 | $207,803 | 0.0% | +6.57% | 32 | |
New | 89 | $184,945 | 0.0% | +6.57% | 31 | |
Decreased | 59(-4.8%) | $122,604 | 0.0% | +14.88% | 0 | |
Decreased | 59(-1.7%) | $122,604 | 0.0% | +57.74% | 0 | |
Increased | 55(+10.0%) | $114,292 | 0.0% | +55.54% | 24 | |
Increased | 50(+6.4%) | $103,902 | 0.0% | +67.39% | 23 | |
Increased | 43(+22.9%) | $89,356 | 0.0% | +28.49% | 26 | |
Decreased | 41(-2.4%) | $85,199 | 0.0% | +96.06% | 0 | |
Increased | 26(+4.0%) | $54,029 | 0.0% | +22.19% | 22 | |
Increased | 25(+47.1%) | $51,951 | 0.0% | +17.15% | 28 | |
Increased | 22(+83.3%) | $45,717 | 0.0% | +40.95% | 31 | |
New | 20 | $41,561 | 0.0% | +6.57% | 28 | |
New | 19 | $39,483 | 0.0% | +6.57% | 28 | |
Increased | 15(+36.4%) | $31,170 | 0.0% | +16.08% | 17 | |
Decreased | 14(-12.5%) | $29,092 | 0.0% | +31.83% | 0 | |
New | 12 | $22,884 | 0.0% | +6.57% | 26 | |
Decreased | 9(-18.2%) | $18,702 | 0.0% | +27.71% | 0 | |
Unchanged | 9 | $18,377 | 0.0% | +28.27% | 0 | |
Decreased | 2(-50.0%) | $4,156 | 0.0% | +29.97% | 0 | |
Increased | 1,990(+5.7%) | $4,136 | 0.0% | +41.70% | 15 | |
Decreased | 133(-96.3%) | $276 | 0.0% | +24.17% | 0 | |
New | 32 | $66 | 0.0% | +6.57% | 15 | |
Exited | 0(-100.0%) | $240,699 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $15,045 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $615,119 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $563,302 | 0.0% | +52.39% | 0 | |
Exited | 0(-100.0%) | $1.5M | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $260,757 | 0.0% | +16.79% | 0 | |
Exited | 0(-100.0%) | $178,853 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $616,791 | 0.0% | +37.84% | 0 | |
Exited | 0(-100.0%) | $498,113 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $670,280 | 0.0% | +16.68% | 0 | |
Exited | 0(-100.0%) | $516 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $272,458 | 0.0% | +23.90% | 0 | |
Exited | 0(-100.0%) | $661,922 | 0.0% | +18.23% | 0 |
Data sourced from four SEC data sources: 13F, Form 4, 13D/13G, and STOCK Act. Not financial advice. Full disclaimer