White Mountains Insurance Group LTD Portfolio Holdings

White Mountains Insurance Group LTD

  • $203 Million
  • Q3 2025

White Mountains Insurance Group LTD has filed its 13F form on November 13, 2025 for Q3 2025 where it was disclosed a total value porftolio of $203 Million distributed in 1 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Media Alpha, Inc. with a value of $203M.

Examining the 13F form we can see an increase of $7.68M in the current position value, from $196M to 203M.

White Mountains Insurance Group LTD is based out at Hanover, NH

Below you can find more details about White Mountains Insurance Group LTD portfolio as well as his latest detailed transactions.

Portfolio value $203 Million
Communication Services: $203 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$487M
$203 Million 100.0% of portfolio
17,856,614
Q2 2024 Reduced 21.88%

Summary

  • Portfolio
  • No. of Stocks 1
  • Current Value $203 Million
  • Prior Value $196 Million
  • Filing
  • Period Q3 2025
  • Filing Date November 13, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 0 stocks
  • Additional Purchases 0 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 0 stocks
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