White Mountains Insurance
323 hedge funds and large institutions have $4.16B invested in White Mountains Insurance in 2025 Q2 according to their latest regulatory filings, with 34 funds opening new positions, 103 increasing their positions, 110 reducing their positions, and 26 closing their positions.
New
Increased
Maintained
Reduced
Closed
more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding
Funds holding: →
more ownership
Funds ownership: →
less capital invested
Capital invested by funds: $ → $
6% less repeat investments, than reductions
Existing positions increased: 103 | Existing positions reduced: 110
29% less funds holding in top 10
Funds holding in top 10: 7 → 5 (-2)
Holders
323
Holding in Top 10
5
Calls
–
Puts
–
Top Buyers
| 1 | +$48.2M | |
| 2 | +$39.7M | |
| 3 | +$9.92M | |
| 4 |
Jane Street
New York
|
+$9.86M |
| 5 |
HF
HRT Financial
New York
|
+$9.13M |
Top Sellers
| 1 | -$31M | |
| 2 | -$18.2M | |
| 3 | -$16.4M | |
| 4 |
APF
Alaska Permanent Fund
Juneau,
Alaska
|
-$10.4M |
| 5 |
Morgan Stanley
New York
|
-$10M |
