White Mountains Insurance
332 hedge funds and large institutions have $3.89B invested in White Mountains Insurance in 2025 Q3 according to their latest regulatory filings, with 44 funds opening new positions, 103 increasing their positions, 103 reducing their positions, and 27 closing their positions.
New
Increased
Maintained
Reduced
Closed
more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding in top 10
Funds holding in top 10: →
more funds holding
Funds holding: →
more ownership
Funds ownership: →
0% more repeat investments, than reductions
Existing positions increased: 103 | Existing positions reduced: 103
7% less capital invested
Capital invested by funds: $4.16B → $3.89B (-$272M)
Holders
332
Holding in Top 10
6
Calls
–
Puts
–
Top Buyers
| 1 | +$52.3M | |
| 2 | +$51.9M | |
| 3 | +$38.3M | |
| 4 |
SAM
Southeastern Asset Management
Memphis,
Tennessee
|
+$17.6M |
| 5 |
Fuller & Thaler Asset Management
San Mateo,
California
|
+$11.9M |
Top Sellers
| 1 | -$43.8M | |
| 2 | -$25.4M | |
| 3 | -$20.5M | |
| 4 |
Victory Capital Management
San Antonio,
Texas
|
-$15.2M |
| 5 |
EP
Edgestream Partners
Princeton,
New Jersey
|
-$10.8M |
