Latest Institutional Purchases of White Mountains Insurance Group LTD (WTM)
This list provides information on the latest institutional transactions involving White Mountains Insurance Group LTD (WTM) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 12, 2025
Q3 2025
|
Neuberger Berman Group LLC
New York, NY |
BUY
|
- |
31.3K+ 37.42% |
$52.3M - $58.6M
|
115K
$221M
|
|
|
Oct 31, 2025
Q3 2025
|
Cooke & Bieler LP
|
BUY
|
- |
31.1K+ 40.47% |
$51.9M - $58.1M
|
108K
$208M
|
|
|
Nov 14, 2025
Q3 2025
|
Fiduciary Management Inc
Milwaukee, WI |
BUY
|
- |
22.9K+ 32.04% |
$38.3M - $42.8M
|
94.4K
$182M
|
|
|
Nov 14, 2025
Q3 2025
|
Southeastern Asset Management Inc
Memphis, TN |
BUY
|
- |
10.6K+ 50.05% |
$17.6M - $19.7M
|
31.7K
$60.9M
|
|
|
Nov 13, 2025
Q3 2025
|
Fuller & Thaler Asset Management, Inc.
San Mateo, CA |
BUY
|
- |
7.11K+ 7.04% |
$11.9M - $13.3M
|
108K
$208M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
- |
7.07K+ 141.12% |
$11.8M - $13.2M
|
12.1K
$23.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
7.07K+ 2455.56% |
$11.8M - $13.2M
|
7.36K
$14.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Joel Greenblatt
Gotham Asset Management, LLC | New York, Ny
|
BUY
|
- |
5.94K+ 618.65% |
$9.93M - $11.1M
|
6.9K
$13.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Lord, Abbett & Co. LLC
Jersey City, NJ |
BUY
|
- |
4.69K+ 14.56% |
$7.84M - $8.77M
|
36.9K
$71.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Lighthouse Investment Partners, LLC
Palm Beach Gardens, FL |
BUY
|
- |
2.94KNew |
$4.91M - $5.5M
|
2.94K
$5.66M
|
|
|
Nov 14, 2025
Q3 2025
|
Wallace Capital Management Inc.
Dallas, TX |
BUY
|
- |
2.45K+ 3.1% |
$4.1M - $4.59M
|
81.5K
$157M
|
|
|
Nov 07, 2025
Q3 2025
|
Jpmorgan Chase & CO
New York, NY |
BUY
|
- |
2.34K+ 117.62% |
$3.9M - $4.37M
|
4.32K
$8.32M
|
|
|
Nov 14, 2025
Q3 2025
|
Horizon Kinetics Asset Management LLC
|
BUY
|
- |
2.11K+ 19.26% |
$3.53M - $3.95M
|
13.1K
$25.2M
|
|
|
Oct 20, 2025
Q3 2025
|
Allspring Global Investments Holdings, LLC
|
BUY
|
- |
2.11K+ 7.14% |
$3.53M - $3.95M
|
31.7K
$61M
|
|
|
Nov 13, 2025
Q3 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
1.85KNew |
$3.09M - $3.46M
|
1.85K
$3.56M
|
|
|
Nov 04, 2025
Q3 2025
|
Atlantic Union Bankshares Corp
|
BUY
|
- |
1.77KNew |
$2.95M - $3.3M
|
1.77K
$3.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Quantinno Capital Management LP
New York, NY |
BUY
|
- |
1.76K+ 41.12% |
$2.95M - $3.3M
|
6.05K
$11.7M
|
|
|
Nov 12, 2025
Q3 2025
|
Dimensional Fund Advisors LP
Austin, TX |
BUY
|
- |
1.46K+ 0.94% |
$2.45M - $2.74M
|
157K
$303M
|
|
|
Nov 06, 2025
Q3 2025
|
Mraz, Amerine & Associates, Inc.
|
BUY
|
- |
1.03K+ 4.77% |
$1.72M - $1.93M
|
22.6K
$43.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Holocene Advisors, LP
New York, NY |
BUY
|
- |
839New |
$1.4M - $1.57M
|
839
$1.61M
|
|
|
Oct 28, 2025
Q3 2025
|
Sequoia Financial Advisors, LLC
|
BUY
|
- |
818New |
$1.37M - $1.53M
|
818
$1.57M
|
|
|
Oct 20, 2025
Q3 2025
|
Regency Capital Management Inc.\De
|
BUY
|
- |
811New |
$1.36M - $1.52M
|
811
$1.56M
|
|
|
Nov 14, 2025
Q3 2025
|
Aquatic Capital Management LLC
Chicago, IL |
BUY
|
- |
765New |
$1.28M - $1.43M
|
765
$1.47M
|
|
|
Nov 13, 2025
Q3 2025
|
Magnetar Financial LLC
Evanston, IL |
BUY
|
- |
763+ 646.61% |
$1.28M - $1.43M
|
881
$1.7M
|
|
|
Nov 07, 2025
Q3 2025
|
Texas Yale Capital Corp.
St. Petersburg, FL |
BUY
|
- |
680New |
$1.14M - $1.27M
|
680
$1.31M
|
|
|
Oct 06, 2025
Q3 2025
|
Oak Thistle LLC
|
BUY
|
- |
657New |
$1.1M - $1.23M
|
657
$1.26M
|
|
|
Nov 14, 2025
Q3 2025
|
Nelson, Van Denburg & Campbell Wealth Management Group, LLC
Omaha, NE |
BUY
|
- |
617New |
$1.03M - $1.15M
|
617
$1.19M
|
|
|
Nov 13, 2025
Q3 2025
|
Cove Street Capital, LLC
El Segundo, CA |
BUY
|
- |
609+ 128.48% |
$1.02M - $1.14M
|
1.08K
$2.08M
|
|
|
Nov 14, 2025
Q3 2025
|
Toroso Investments, LLC
Massapequa, NY |
BUY
|
- |
608New |
$1.02M - $1.14M
|
608
$1.17M
|
|
|
Nov 14, 2025
Q3 2025
|
State Board Of Administration Of Florida Retirement System
|
BUY
|
- |
529+ 20.24% |
$884K - $989K
|
3.14K
$6.05M
|
|
|
Nov 12, 2025
Q3 2025
|
Handelsbanken Fonder Ab
|
BUY
|
- |
500+ 83.33% |
$836K - $935K
|
1.1K
$2.12M
|
|
|
Nov 13, 2025
Q3 2025
|
Sei Investments CO
Oaks, PA |
BUY
|
- |
481+ 9.81% |
$804K - $899K
|
5.39K
$10.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Summit Trail Advisors, LLC
New York, NY |
BUY
|
- |
456+ 122.58% |
$762K - $853K
|
828
$1.59M
|
|
|
Nov 13, 2025
Q3 2025
|
Legacy Advisors, LLC
|
BUY
|
- |
450New |
$752K - $841K
|
450
$866K
|
|
|
Nov 04, 2025
Q3 2025
|
Agf Management LTD
Toronto Ontario Canada, A6 |
BUY
|
- |
448+ 33.63% |
$749K - $838K
|
1.78K
$3.43M
|
|
|
Oct 10, 2025
Q3 2025
|
Perpetual LTD
Sydney, New South Wales, C3 |
BUY
|
- |
400+ 5.18% |
$669K - $748K
|
8.13K
$15.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Capstone Investment Advisors, LLC
New York, NY |
BUY
|
- |
368New |
$615K - $688K
|
368
$708K
|
|
|
Nov 14, 2025
Q3 2025
|
Northern Trust Corp
Chicago, IL |
BUY
|
- |
352+ 2.02% |
$588K - $658K
|
17.8K
$34.2M
|
|
|
Nov 12, 2025
Q3 2025
|
Thompson Siegel & Walmsley LLC
|
BUY
|
- |
347+ 4.18% |
$580K - $649K
|
8.65K
$16.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Srs Capital Advisors, Inc.
Denver, CO |
BUY
|
- |
327+ 180.66% |
$547K - $611K
|
508
$978K
|
|
|
Nov 12, 2025
Q3 2025
|
Lpl Financial LLC
Fort Mill, SC |
BUY
|
- |
321+ 16.17% |
$537K - $600K
|
2.31K
$4.44M
|
|
|
Nov 13, 2025
Q3 2025
|
Farringdon Capital, Ltd.
London, X0 |
BUY
|
- |
310New |
$518K - $580K
|
310
$597K
|
|
|
Nov 14, 2025
Q3 2025
|
Virtu Financial LLC
New York, NY |
BUY
|
- |
309New |
$516K - $578K
|
309
$595K
|
|
|
Nov 06, 2025
Q3 2025
|
Caprock Group, Inc.
|
BUY
|
- |
308+ 167.39% |
$515K - $576K
|
492
$947K
|
|
|
Nov 14, 2025
Q3 2025
|
Balyasny Asset Management LLC
Chicago, IL |
BUY
|
- |
298New |
$498K - $557K
|
298
$574K
|
|
|
Nov 14, 2025
Q3 2025
|
Creative Planning
Overland Park, KS |
BUY
|
- |
260+ 9.15% |
$435K - $486K
|
3.1K
$5.97M
|
|
|
Nov 14, 2025
Q3 2025
|
Hotchkis & Wiley Capital Management LLC
Los Angeles, CA |
BUY
|
- |
237+ 3.45% |
$396K - $443K
|
7.11K
$13.7M
|
|
|
Nov 13, 2025
Q3 2025
|
Russell Investments Group, Ltd.
|
BUY
|
- |
234+ 200.0% |
$391K - $438K
|
351
$676K
|
|
|
Nov 14, 2025
Q3 2025
|
Tower Research Capital LLC (Trc)
New York, NY |
BUY
|
- |
230+ 121.05% |
$384K - $430K
|
420
$808K
|
|
|
Nov 10, 2025
Q3 2025
|
Choreo, LLC
Minneapolis, MN |
BUY
|
- |
223+ 128.9% |
$373K - $417K
|
396
$762K
|
|