Institutional Ownership White Mountains Insurance Group LTD (WTM)
This table provides information about the institutional ownership of White Mountains Insurance Group LTD (WTM). We have compiled data on the 362 institutions that hold shares in the stock, with a total of 2.55 Million shares, which have been reported (via 13F filing form) to have a value of $4.5 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Goldman Sachs Group Inc
New York, NY |
Aug 14, 2025 Q2 2025 |
6,885
shares
|
$12.4 Million
0.0% of portfolio
|
Q2 2025
Added 61.66%
|
|
|
Hotchkis & Wiley Capital Management LLC
Los Angeles, CA |
Aug 13, 2025 Q2 2025 |
6,869
shares
|
$12.3 Million
0.04% of portfolio
|
Q2 2025
Reduced 0.35%
|
|
|
Royce & Associates LP
|
Aug 11, 2025 Q2 2025 |
6,603
shares
|
$11.9 Million
0.13% of portfolio
|
Q2 2025
Reduced 43.02%
|
|
|
American Century Companies Inc
Kansas City, MO |
Aug 12, 2025 Q2 2025 |
6,365
shares
|
$11.4 Million
0.01% of portfolio
|
Q2 2025
Reduced 9.54%
|
|
|
Jane Street Group, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
6,071
shares
|
$10.9 Million
0.0% of portfolio
|
Q2 2025
Added 950.35%
|
|
|
First Trust Advisors LP
Wheaton, IL |
Aug 13, 2025 Q2 2025 |
5,672
shares
|
$10.2 Million
0.01% of portfolio
|
Q2 2025
Reduced 75.26%
|
|
|
Bradley Foster & Sargent Inc
Hartford, CT |
Aug 11, 2025 Q2 2025 |
5,522
shares
|
$9.91 Million
0.16% of portfolio
|
Q2 2025
New holding
|
|
|
Phocas Financial Corp.
Alameda, CA |
Aug 05, 2025 Q2 2025 |
5,392
shares
|
$9.68 Million
1.39% of portfolio
|
Q2 2025
Added 0.02%
|
|
|
Williams Jones Wealth Management, Llc.
New York, NY |
Aug 14, 2025 Q2 2025 |
5,193
shares
|
$9.32 Million
0.11% of portfolio
|
Q1 2024
Reduced 2.81%
|
|
|
Hrt Financial LP
New York, NY |
Aug 14, 2025 Q2 2025 |
5,087
shares
|
$9.13 Million
0.05% of portfolio
|
Q2 2025
New holding
|
|
|
Ubs Group Ag
|
Aug 14, 2025 Q2 2025 |
5,012
shares
|
$8.99 Million
0.0% of portfolio
|
Q2 2025
Added 42.47%
|
|
|
Swiss National Bank
Zurich, V8 |
May 12, 2025 Q1 2025 |
4,946
shares
|
$8.88 Million
0.01% of portfolio
|
Q1 2025
Reduced 1.98%
|
|
|
Sei Investments CO
Oaks, PA |
Aug 14, 2025 Q2 2025 |
4,905
shares
|
$8.8 Million
0.01% of portfolio
|
Q2 2025
Added 19.63%
|
|
|
Credit Suisse Ag
Zurich, V8 |
May 10, 2024 Q1 2024 |
4,593
shares
|
$8.24 Million
0.01% of portfolio
|
Q1 2024
Added 2.07%
|
|
|
Legal & General Group PLC
London, X0 |
Aug 12, 2025 Q2 2025 |
4,309
shares
|
$7.73 Million
0.0% of portfolio
|
Q2 2025
Added 4.33%
|
|
|
Quantinno Capital Management LP
New York, NY |
Aug 14, 2025 Q2 2025 |
4,290
shares
|
$7.7 Million
0.03% of portfolio
|
Q2 2025
Reduced 6.86%
|
|
|
Rhumbline Advisers
Boston, MA |
Aug 12, 2025 Q2 2025 |
4,280
shares
|
$7.68 Million
0.01% of portfolio
|
Q2 2025
Reduced 4.29%
|
|
|
Prospector Partners LLC
Guilford, CT |
Aug 08, 2025 Q2 2025 |
4,076
shares
|
$7.32 Million
0.88% of portfolio
|
Q2 2025
Added 5.73%
|
|
|
Invesco Ltd.
Atlanta, GA |
Aug 13, 2025 Q2 2025 |
3,646
shares
|
$6.54 Million
0.0% of portfolio
|
Q2 2025
Reduced 9.3%
|
|
|
Brandywine Global Investment Management, LLC
Philadelphia, PA |
Aug 12, 2025 Q2 2025 |
3,526
shares
|
$6.33 Million
0.05% of portfolio
|
Q2 2025
Reduced 2.76%
|
|
|
Ameriprise Financial Inc
Minneapolis, MN |
Aug 14, 2025 Q2 2025 |
3,482
shares
|
$6.25 Million
0.0% of portfolio
|
Q2 2025
Reduced 1.42%
|
|
|
Nuveen, LLC
Charlotte, NC |
Aug 12, 2025 Q2 2025 |
3,458
shares
|
$6.21 Million
0.0% of portfolio
|
Q2 2025
Reduced 55.5%
|
|
|
Barclays PLC
London, X0 |
Aug 14, 2025 Q2 2025 |
3,383
shares
|
$6.07 Million
0.0% of portfolio
|
Q2 2025
Added 2.67%
|
|
|
Lee Danner & Bass Inc
|
Jul 31, 2025 Q2 2025 |
3,148
shares
|
$5.65 Million
0.45% of portfolio
|
Q1 2025
Reduced 4.02%
|
|
|
Harbor Capital Advisors, Inc.
|
Jul 09, 2025 Q2 2025 |
2,976
shares
|
$5.34 Million
0.22% of portfolio
|
Q2 2025
Reduced 2.68%
|