WHITE MOUNTAINS INSURANCE GROUP LTD
WTM · Fire, Marine & Casualty Insurance10
Directors
65
Avg Age
5.2
Avg Tenure (yrs)
20%
Independent
Independent
Non-independent
Near rotation
Board Members
MC
Mary C. Choksi
Chair
AG
A. Gelston
Director
...and 8 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 2026-04-01. Data extracted and structured by FindABoardSeat.