11
Directors
66
Avg Age
10.1
Avg Tenure (yrs)
82%
Independent
Independent
Non-independent
Near rotation
Board Members
SM
Steven A. Markel
Chair
TG
Thomas S. Gayner
Director
3 directors with 10+ years of tenure.
...and 9 more directors
The full roster, committee assignments, director pay, and expected-turnover signals for every board on the site are in our free newsletter, Seats Opening.
Get Seats OpeningSource: SEC DEF 14A proxy statement filed 2026-04-02. Data extracted and structured by FindABoardSeat.