WTMWHITE MOUNTAINS INSURANCE GROUP LTD

Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-05-22.

Set an alert for WTM
Insider buys (90d)
$0.00
Insider sells (90d)
$0.00
Net flow
$0.00
Filings
9
Buy transactions
0
Sell transactions
0
Distinct insiders
9
Last close (cached)
$2004.76
as of 2026-06-09
1d return
-0.9%
5d return
-2.2%
1m return
-5.8%

Top insiders trading WTM (90d)

Recent transactions (9)

FiledTxn dateInsiderCodeSharesPriceValueFiling
2026-05-222026-05-21Tanner David Allen
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21SHANK SUZANNE F.
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21Hicks Weston M
Director
Grant190$0.00$0.00open →
2026-05-222026-05-21Gelston Philip A
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21Dillon Margaret
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21Chu John
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21CHOKSI MARY C
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21Carlson Peter M
Director
Grant135$0.00$0.00open →
2026-05-222026-05-21CAMPBELL REID TARLTON
Director
Grant135$0.00$0.00open →

Other tickers these insiders trade

Want an email the moment a new insider transaction is filed on WTM? Set up an alert → Watch4Insider delivers SEC Form 4 alerts with a sub-60s p95 SLA.

WTM Insider Trading & Form 4 Activity · Watch4Insider