WHITE MOUNTAINS INSURANCE GROUP LTD·4

May 22, 10:31 AM ET

Carlson Peter M 4

4 · WHITE MOUNTAINS INSURANCE GROUP LTD · Filed May 22, 2026

Research Summary

AI-generated summary of this filing

Updated

White Mountains (WTM) Director Peter M. Carlson Receives 135-Share Award

What Happened
Peter M. Carlson, a director of White Mountains Insurance Group Ltd (WTM), was granted 135 shares on May 21, 2026. The Form 4 reports the acquisition as an award (transaction code A) at a reported price of $0.00 (no cash paid). The filing lists this as an annual director share award.

Key Details

  • Transaction date: 2026-05-21; filing date: 2026-05-22 (timely filing indicated).
  • Transaction type/code: Award/Grant (A).
  • Shares granted: 135; reported acquisition price: $0.00; total reported cash value: $0.
  • Shares owned after the transaction: Not disclosed on this filing.
  • Footnote: F1 — Annual Director Share Award.
  • No indication of a sale, option exercise, or 10b5-1 plan in this filing.

Context
Director share awards are a common form of non-cash compensation and often come with vesting or transfer restrictions; they do not necessarily signal the director buying or selling stock in the market. This report documents receipt of shares rather than a market purchase or sale.

Insider Transaction Report

Form 4
Period: 2026-05-21
Transactions
  • Award

    Common Shares

    [F1]
    2026-05-21+135852 total
Footnotes (1)
  • [F1]Annual Director Share Award
Signature
Wesley C. Bell, by Power of Attorney|2026-05-21

Documents

1 file
  • 4
    form4.xmlPrimary

    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES