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Company profile

MARKEL GROUP INC. insider acquisitions

Company CIK 0001096343 · Reported insider acquisitions and filing context.

Company filings at SEC ↗
MKL · NYSE

These are company listings. A transaction is linked to a particular security only when the filing provides enough information.

Company activity summary

By transaction date, as of October 21, 2026.

7 days30 days90 daysOverlapping periods · securities and currencies kept separate
30-day company acquisitions grouped by security, category, original code, and currency.
Type / codeReported securityTransactionsKnown purchase valueMissing amounts
Other acquisitionCode JCommon StockNon-derivative · Currency not specified1Not applicable0

Known purchase value sums available amounts for non-derivative purchases only. Missing amounts are excluded. “Currency not specified” does not establish that the amounts share a currency. These summaries use all matching loaded records, while the timeline below covers only the current page.

Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.Costanzo Brian J.Costanzo Brian J.Costanzo Brian J. · September 30, 2026 · Other acquisition · Common StockCostanzo Brian J. · September 30, 2025 · Other acquisition · Common StockSep 30, 2025Sep 30, 2026
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

2 dated transactions · 1 of 1 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Sep 30, 2026MARKEL GROUP INC.Common StockCostanzo Brian J.Other acquisition
Sep 30, 2025MARKEL GROUP INC.Common StockCostanzo Brian J.Other acquisition

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Share price & reported acquisitions

Daily closing prices from a separate source. The date window above also filters prices; reporting-owner and transaction-type selections filter the markers.

Price history is not available

Market-price history is not connected yet.

MKL · Currency not specified. A marker uses that day's closing price, not the reported transaction price. No price is substituted for a missing trading day.

Reported acquisitions

Filing-date filters apply to the list and timeline. The summary above uses transaction dates.

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Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedReporting ownersType / securityQuantityPrice / reference valueDetails
Trade:
Costanzo Brian J.Chief Financial Officer
Other acquisitionCommon StockNon-derivative security · Code J2.0611,455.58Value: 2,999.95038Currency not specifiedView ↗
Trade:
Costanzo Brian J.Chief Financial Officer
Other acquisitionCommon StockNon-derivative security · Code J1.8461,624.66Value: 2,999.12236Currency not specifiedView ↗

Reporting owners are associated with a filing. Jointly reported amounts are not allocated to individual owners. Historical coverage is still being built. Read the methodology →