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Markel Group

Markel Group (NYSE: MKL) insider transactions

In the twelve months to 10 November 2026, executives and directors of Markel Group reported 23 open-market sales of 1,751 shares ($3.7m) and 3 open-market purchases of 207 shares ($371,066), by 5 people, according to the Form 4 filings they submitted to the SEC.

Latest transactions

The 20 most recent transactions in Markel Group shares reported on Form 4
DateInsiderRoleTransactionSharesPriceHeld afterFiling
5 November 2026Markel Steven ADirectorGift−500—59,868Form 4
30 September 2026Costanzo Brian J.Chief Financial OfficerOther+2$1,455.581,634Form 4
15 July 2026Crowley Andrew G.EVP & Pres., Markel VenturesOther+7$1,730.492,749Form 4
30 June 2026Costanzo Brian J.Chief Financial OfficerOther+2$1,617.191,632Form 4
30 June 2026Crowley Andrew G.EVP & Pres., Markel VenturesOther+3$1,617.192,741Form 4
15 June 2026Michael Jonathan EDirectorOther+66$1,668.65333Form 4
15 June 2026Oreilly MichaelDirectorOther+90$1,668.653,935Form 4
15 June 2026Morrison Harold Lawrence Jr.DirectorOther+33$1,668.651,127Form 4
15 June 2026Puckett A. LynneDirectorOther+66$1,668.65507Form 4
15 June 2026Leopold DianeDirectorOther+66$1,668.652,345Form 4
15 June 2026Cunningham Lawrence ADirectorOther+33$1,668.651,042Form 4
15 June 2026Besca MarkDirectorOther+81$1,668.651,222Form 4
15 June 2026Housel Morgan E.DirectorOther+66$1,668.651,029Form 4
22 May 2026Harris Greta JDirectorOpen-market sale−35$1,846.12686Form 4
22 May 2026Harris Greta JDirectorOpen-market sale−14$1,847.36672Form 4
22 May 2026Harris Greta JDirectorOpen-market sale−27$1,848.83645Form 4
20 May 2026Michael Jonathan EDirectorGrant or award+89—267Form 4
20 May 2026Oreilly MichaelDirectorGrant or award+89—3,845Form 4
20 May 2026Morrison Harold Lawrence Jr.DirectorGrant or award+89—1,094Form 4
20 May 2026Puckett A. LynneDirectorGrant or award+89—441Form 4

Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.

How to read the table

Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.

Where each row comes from

From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Markel Group page; the method, in data sources.

Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.