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 354 institutions that hold shares in the stock, with a total of 2.5 Million shares, which have been reported (via 13F filing form) to have a value of $4.52 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Perpetual LTD
Sydney, New South Wales, C3 |
Jul 11, 2025 Q2 2025 |
7,727
shares
|
$13.7 Million
0.16% of portfolio
|
Q1 2025
Reduced 19.74%
|
|
|
American Century Companies Inc
Kansas City, MO |
May 13, 2025 Q1 2025 |
7,036
shares
|
$12.5 Million
0.01% of portfolio
|
Q1 2025
Added 30.9%
|
|
|
Hotchkis & Wiley Capital Management LLC
Los Angeles, CA |
May 14, 2025 Q1 2025 |
6,893
shares
|
$12.3 Million
0.05% of portfolio
|
Q1 2025
Reduced 6.42%
|
|
|
Alaska Permanent Fund Corp
Juneau, AK |
May 14, 2025 Q1 2025 |
5,902
shares
|
$10.5 Million
0.16% of portfolio
|
Q2 2024
Added 0.08%
|
|
|
Phocas Financial Corp.
Alameda, CA |
May 08, 2025 Q1 2025 |
5,391
shares
|
$9.59 Million
1.59% of portfolio
|
Q1 2025
Reduced 5.45%
|
|
|
Williams Jones Wealth Management, Llc.
New York, NY |
May 15, 2025 Q1 2025 |
5,193
shares
|
$9.24 Million
0.13% of portfolio
|
Q1 2024
Reduced 2.81%
|
|
|
Swiss National Bank
Zurich, V8 |
May 12, 2025 Q1 2025 |
4,946
shares
|
$8.8 Million
0.01% of portfolio
|
Q1 2025
Reduced 1.98%
|
|
|
Quantinno Capital Management LP
New York, NY |
May 12, 2025 Q1 2025 |
4,606
shares
|
$8.19 Million
0.06% of portfolio
|
Q1 2025
Added 125.34%
|
|
|
Credit Suisse Ag
Zurich, V8 |
May 10, 2024 Q1 2024 |
4,593
shares
|
$8.17 Million
0.01% of portfolio
|
Q1 2024
Added 2.07%
|
|
|
Rhumbline Advisers
Boston, MA |
May 29, 2025 Q1 2025 |
4,472
shares
|
$7.95 Million
0.01% of portfolio
|
Q4 2024
Added 1.72%
|
|
|
Goldman Sachs Group Inc
New York, NY |
Jun 26, 2025 Q1 2025 |
4,259
shares
|
$7.58 Million
0.0% of portfolio
|
Q1 2025
Added 54.59%
|
|
|
Legal & General Group PLC
London, X0 |
May 15, 2025 Q1 2025 |
4,130
shares
|
$7.35 Million
0.0% of portfolio
|
Q4 2023
Added 15.52%
|
|
|
Sei Investments CO
Oaks, PA |
May 14, 2025 Q1 2025 |
4,100
shares
|
$7.29 Million
0.01% of portfolio
|
Q1 2025
Added 32.99%
|
|
|
Invesco Ltd.
Atlanta, GA |
May 12, 2025 Q1 2025 |
4,020
shares
|
$7.15 Million
0.0% of portfolio
|
Q1 2025
Reduced 7.56%
|
|
|
Prospector Partners LLC
Guilford, CT |
May 13, 2025 Q1 2025 |
3,855
shares
|
$6.86 Million
0.87% of portfolio
|
Q3 2024
Added 17.21%
|
|
|
Brandywine Global Investment Management, LLC
Philadelphia, PA |
May 13, 2025 Q1 2025 |
3,626
shares
|
$6.45 Million
0.05% of portfolio
|
Q1 2025
Reduced 7.48%
|
|
|
Edgestream Partners, L.P.
Princeton, NJ |
May 01, 2025 Q1 2025 |
3,540
shares
|
$6.3 Million
0.24% of portfolio
|
Q1 2025
New holding
|
|
|
Ameriprise Financial Inc
Minneapolis, MN |
May 14, 2025 Q1 2025 |
3,532
shares
|
$6.28 Million
0.0% of portfolio
|
Q1 2025
Added 7.78%
|
|
|
Ubs Group Ag
|
May 13, 2025 Q1 2025 |
3,518
shares
|
$6.26 Million
0.0% of portfolio
|
Q1 2025
Reduced 18.3%
|
|
|
Barclays PLC
London, X0 |
May 15, 2025 Q1 2025 |
3,295
shares
|
$5.86 Million
0.0% of portfolio
|
Q1 2025
Added 53.83%
|
|
|
Lee Danner & Bass Inc
|
Apr 29, 2025 Q1 2025 |
3,148
shares
|
$5.6 Million
0.5% of portfolio
|
Q1 2025
Reduced 4.02%
|
|
|
State Board Of Administration Of Florida Retirement System
|
May 12, 2025 Q1 2025 |
2,992
shares
|
$5.32 Million
0.01% of portfolio
|
Q1 2025
Added 26.14%
|
|
|
Harbor Capital Advisors, Inc.
|
Jul 09, 2025 Q2 2025 |
2,976
shares
|
$5.29 Million
0.22% of portfolio
|
Q2 2025
Reduced 2.68%
|
|
|
New York State Common Retirement Fund
|
May 01, 2025 Q1 2025 |
2,723
shares
|
$4.84 Million
0.01% of portfolio
|
Q2 2024
Added 5.46%
|
|
|
Creative Planning
Overland Park, KS |
May 15, 2025 Q1 2025 |
2,690
shares
|
$4.78 Million
0.0% of portfolio
|
Q1 2025
Added 18.87%
|