Filed: 5/12/2025ACC: 0001104659-25-047309
📋 What this filing means
WHITE MOUNTAINS INSURANCE GROUP LTD filed this quarterly 13F‑HR report disclosing 2 equity positions with a total reported market value of $285.93M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
2
Positions
$285.93M
Total AUM (reported)
18.07M
Total Shares
Allocation by class
CL A$165.00M57.7%
TR UNIT$120.94M42.3%
Portfolio Concentration
Top 3$285.93M100.0%
Top 3 weight
100.0%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 18.07M
Sole
Full voting authority
18.07M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole2
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings2
Rows:
MEDIAALPHA INC
SOLEShares17.86M
TypeSH
Market value$165.00M
57.70%
Sole
17.86M
Shared
0.00
None
0.00
SPDR S&P 500 ETF TR
SOLEShares216.20K
TypeSH
Market value$120.94M
42.30%
Sole
216.20K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
MEDIAALPHA INCSOLE | CL A | 17.86M | SH | $165.00M 57.70% | 17.86M | 0.00 | 0.00 |
SPDR S&P 500 ETF TRSOLE | TR UNIT | 216.20K | SH | $120.94M 42.30% | 216.20K | 0.00 | 0.00 |