White Mountains Insurance
318 hedge funds and large institutions have $4.38B invested in White Mountains Insurance in 2025 Q1 according to their latest regulatory filings, with 27 funds opening new positions, 101 increasing their positions, 106 reducing their positions, and 27 closing their positions.
New
Increased
Maintained
Reduced
Closed
more funds holding in top 10
Funds holding in top 10: →
more ownership
Funds ownership: →
more first-time investments, than exits
New positions opened: | Existing positions closed:
less capital invested
Capital invested by funds: $ → $
5% less repeat investments, than reductions
Existing positions increased: 101 | Existing positions reduced: 106
1% less funds holding
Funds holding: 322 → 318 (-4)
Holders
318
Holding in Top 10
7
Calls
–
Puts
–
Top Buyers
1 | +$43.7M | |
2 | +$39.6M | |
3 | +$22M | |
4 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$9.07M |
5 |
Victory Capital Management
San Antonio,
Texas
|
+$8.75M |
Top Sellers
1 | -$47.2M | |
2 | -$13.6M | |
3 | -$7.67M | |
4 |
RRAM
River Road Asset Management
Louisville,
Kentucky
|
-$5.3M |
5 |
KBC Group
Brussels,
Belgium
|
-$3.73M |