Costanzo Brian J. 4
4 · MARKEL GROUP INC. · Filed Jan 20, 2026
Insider Transaction Report
Form 4
Costanzo Brian J.
Chief Financial Officer
Transactions
- Other
Common Stock
[F1]2025-12-31$1602.62/sh+2.184$3,500→ 956.543 total
Holdings
- 223.836(indirect: By 401(k))
Common Stock
[F2]
Footnotes (2)
- [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).
- [F2]The information reported herein is based on MKL 401(k) plan balance as of December 31, 2025.
Signature
/s/ Karen O. Earls, Attorney-in-fact for Brian J. Costanzo|2026-01-20