MARKEL GROUP INC. 4

CFO Brian J. Costanzo acquired a small number of Markel Group Inc. (MKL) common shares through an employee stock purchase plan and ongoing 401(k) plan contributions, totaling a few thousand dollars in value.

On June 30, 2026, Markel Group Inc. Chief Financial Officer Brian J. Costanzo acquired a small number of MKL common shares through employee benefit plans rather than open-market trading. He acquired 0.7472 shares at an average price of approximately $2,164.20 per share, totaling about $1,617, through the qualified component of the MKL 2020 Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3. In addition, between March 31, 2026 and June 30, 2026, he accumulated 3.269 MKL shares in the company’s 401(k) plan, bringing his indirect 401(k) holdings to 229.592 shares as of June 30, 2026. These transactions are routine, compensation- and savings-plan-related acquisitions and do not represent discretionary open-market purchases or sales. Using the current MKL share price of about $1,961.71, the value of his 401(k) plan holdings is roughly $450,000, and his total direct and indirect MKL ownership is modest in the context of the company’s market capitalization.

Filing Facts

CIK

1096343

Ticker

MKL

Form

4

Source Type

sec

Accession

0001873434-26-000008

Alert Tier

5