InsiderTrades

Form 4 for MKL MARKEL GROUP INC.

Accepted 2026-01-20 00:00:00 ET · period of report 2025-12-31 · accession 0001096343-26-000001 · 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
2026-01-20 2025-12-31 MKL Costanzo Brian J. CFO J - Other $1,602.62 +2.18 956.54 +0.2% +$3,494

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-12-31 J A 2.18 $1,602.62 956.54 D — — (F1) Shares acquired under the qualified component of the MKL 2020 Employee Stock Purchase Plan in a transaction exempt under Exchange Act Rule 16b-3(c).