InsiderTrades

Form 4 for WTM WHITE MOUNTAINS INSURANCE GROUP LTD

Accepted 2026-05-22 10:33:35 ET · period of report 2026-05-21 · accession 0000776867-26-000041 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-05-22 10:33 2026-05-21 WTM Dillon Margaret Dir A - Grant $0.00 +135 1,080 +14% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Shares 2026-05-21 A A 135 $0.00 1,080 D — — (F1) Annual Director Share Award