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 |
|---|---|---|---|---|---|---|---|
|
Jan 28, 2026
Q4 2025
|
M&T Bank Corp
|
BUY
|
- |
18.5KNew |
$30.6M - $35.9M
|
18.5K
$35.7M
|
|
|
Jan 15, 2026
Q4 2025
|
Triad Investment Management
|
BUY
|
- |
765+ 42.91% |
$1.26M - $1.48M
|
2.55K
$4.9M
|
|
|
Jan 27, 2026
Q4 2025
|
Zurcher Kantonalbank (Zurich Cantonalbank)
Zurich, V8 |
BUY
|
- |
660+ 260.87% |
$1.09M - $1.28M
|
913
$1.76M
|
|
|
Jan 27, 2026
Q4 2025
|
Lecap Asset Management LTD
London, X0 |
BUY
|
- |
340New |
$561K - $659K
|
340
$654K
|
|
|
Jan 16, 2026
Q4 2025
|
Perigon Wealth Management, LLC
San Francisco, CA |
BUY
|
- |
102New |
$168K - $198K
|
102
$196K
|
|
|
Jan 07, 2026
Q4 2025
|
Baldwin Brothers LLC
|
BUY
|
- |
100New |
$165K - $194K
|
100
$192K
|
|
|
Jan 26, 2026
Q4 2025
|
Childress Capital Advisors, LLC
Houston, TX |
BUY
|
- |
99New |
$163K - $192K
|
99
$191K
|
|
|
Jan 23, 2026
Q4 2025
|
Farther Finance Advisors, LLC
San Francisco, CA |
BUY
|
- |
94+ 19.75% |
$155K - $182K
|
570
$1.1M
|
|
|
Jan 23, 2026
Q4 2025
|
Eagle Bay Advisors LLC
New York, NY |
BUY
|
- |
91New |
$150K - $176K
|
91
$175K
|
|
|
Jan 28, 2026
Q4 2025
|
Universal Beteiligungs Und Servicegesellschaft Mb H
Frankfurt Am Main, 2M |
BUY
|
- |
67+ 22.95% |
$111K - $130K
|
359
$691K
|
|
|
Jan 05, 2026
Q4 2025
|
Park Avenue Securities LLC
|
BUY
|
- |
59+ 8.4% |
$97.4K - $114K
|
761
$1.46M
|
|
|
Jan 29, 2026
Q4 2025
|
Pictet Asset Management Holding Sa
Carouge, V8 |
BUY
|
- |
50+ 14.29% |
$82.5K - $96.9K
|
400
$770K
|
|
|
Jan 23, 2026
Q4 2025
|
Steph & CO
|
BUY
|
- |
20+ 68.97% |
$33K - $38.8K
|
49
$94.3K
|
|
|
Jan 28, 2026
Q4 2025
|
Caprock Group, Inc.
|
BUY
|
- |
17+ 3.46% |
$28.1K - $32.9K
|
509
$980K
|
|
|
Jan 08, 2026
Q4 2025
|
Wealth Enhancement Advisory Services, LLC
|
BUY
|
- |
17+ 8.1% |
$28.1K - $32.9K
|
227
$437K
|
|
|
Jan 02, 2026
Q4 2025
|
Gamma Investing LLC
Foster City, CA |
BUY
|
- |
16+ 8.74% |
$26.4K - $31K
|
199
$383K
|
|
|
Jan 20, 2026
Q4 2025
|
Harbor Capital Advisors, Inc.
|
BUY
|
- |
12+ 1.41% |
$19.8K - $23.3K
|
864
$1.66M
|
|
|
Jan 05, 2026
Q4 2025
|
Miller Global Investments, LLC
Dallas, TX |
BUY
|
- |
12New |
$19.8K - $23.3K
|
12
$23.1K
|
|
|
Jan 28, 2026
Q4 2025
|
Chicago Partners Investment Group LLC
|
BUY
|
- |
7+ 1.36% |
$11.6K - $13.6K
|
523
$1.01M
|
|
|
Jan 12, 2026
Q4 2025
|
Legacy Wealth Asset Management, LLC
|
BUY
|
- |
5+ 1.62% |
$8.25K - $9.69K
|
313
$602K
|
|
|
Jan 28, 2026
Q4 2025
|
Hb Wealth Management, LLC
|
BUY
|
- |
4+ 3.17% |
$6.6K - $7.75K
|
130
$250K
|
|
|
Jan 26, 2026
Q4 2025
|
Cwm, LLC
|
BUY
|
- |
3+ 20.0% |
$4.95K - $5.81K
|
18
$34.6K
|
|
|
Jan 20, 2026
Q4 2025
|
Signaturefd, LLC
Atlanta, GA |
BUY
|
- |
3+ 5.66% |
$4.95K - $5.81K
|
56
$108K
|
|
|
Jan 16, 2026
Q4 2025
|
Crewe Advisors LLC
|
BUY
|
- |
3New |
$4.95K - $5.81K
|
3
$5.77K
|
|
|
Jan 23, 2026
Q4 2025
|
State Of Alaska, Department Of Revenue
|
BUY
|
- |
2+ 1.71% |
$3.3K - $3.88K
|
119
$229K
|
|
|
Jan 16, 2026
Q4 2025
|
Marquette Asset Management, LLC
|
BUY
|
- |
2New |
$3.3K - $3.88K
|
2
$3.85K
|
|
|
Jan 26, 2026
Q4 2025
|
Merit Financial Group, LLC
|
BUY
|
- |
1+ 0.83% |
$1.65K - $1.94K
|
121
$233K
|
|
|
Jan 15, 2026
Q4 2025
|
Frank, Rimerman Advisors LLC
Palo Alto, CA |
BUY
|
- |
1+ 0.56% |
$1.65K - $1.94K
|
178
$343K
|
|
|
Jan 13, 2026
Q4 2025
|
Jfs Wealth Advisors, LLC
|
BUY
|
- |
1+ 20.0% |
$1.65K - $1.94K
|
6
$11.5K
|
|
|
Jan 08, 2026
Q4 2025
|
Versant Capital Management, Inc
|
BUY
|
- |
1+ 6.25% |
$1.65K - $1.94K
|
17
$32.7K
|
|
| Q3 2025 | |||||||
|
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 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
|
|
|
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
|
|