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Signal brief

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MAXBearishInsider Tradeinsider
High materiality7/10

MAX 10% owner sells $76.5M in shares

Nov 5, 2026, 10:25 PM EST1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

The large sale by a 10% owner is a bearish insider signal, but it should not be treated as proof of deteriorating fundamentals.

AI summary

What happened, with direct paths to the underlying reporting

White Mountains Insurance Group, a 10% owner, reported selling 5,500,391 MAX shares for approximately $76.5 million. The size of the reported sale is notable, though the filing does not establish the seller’s remaining stake or reason for selling.

  • 10% owner reported selling 5.5M shares for about $76.5M.
  • Remaining ownership and sale motivation are not provided.

Key facts

  1. 01

    Insider: WHITE MOUNTAINS INSURANCE GROUP LTD

  2. 02

    Role: 10 percent owner

  3. 03

    Transaction: S-Sale

  4. 04

    Shares: 5,500,391

  5. 05

    Price: $13.9

  6. 06

    Value: $76,455,435

How to read this signal

Transparent limits for an AI-generated research aid

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