GAYNER THOMAS SINNICKSON 4

What Happened Thomas Sinnickson Gayner, CEO of Markel Group Inc. (MKL), disposed of 481.668 shares on May 15, 2026 to satisfy a tax liability. The shares were valued at $1,844.00 each, for a total of approximately $888,196. This transaction is reported under code F (payment of exercise price or tax liability), indicating shares were surrendered/withheld to cover taxes rather than an open-market sale.

Key Details

• Transaction date: 2026-05-15; Form 4 filed: 2026-05-19 (filed within the required two business days).
• Price per share: $1,844.00; shares disposed: 481.668; total value reported: ~$888,196.
• Transaction code F = payment of exercise price or tax liability (surrender/withholding of shares).
• Footnote F1: 11.218 shares were acquired under the MKL 401(k) plan between Dec 31, 2025 and Mar 31, 2026 (plan balance as of Mar 31, 2026).
• Footnote F2: The reporting person expressly disclaims beneficial ownership; post-transaction beneficial holdings are not provided in this filing.

Context This appears to be a routine tax-withholding transaction (commonly part of option exercises or vested awards) rather than a discretionary open-market sale. Such withholdings are administrative and do not necessarily signal executive sentiment about the stock.