Rountree George Manning sold WTM
December 19, 2025 · Form 4 insider transaction
Rountree George Manning sold 5,000 shares of White Mountains Insurance Group, Ltd. at $2050.00 per share, a transaction worth $10.25M. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 3 days after the transaction.
Direction
Disposed (sell-side)
Shares
5,000
Price
$2050.00
Total value
$10.25M
InsiderRountree George Manning
Role—
SecurityCommon Shares
Transaction codeS: Open-market sale
Transaction dateDecember 19, 2025
Filing dateDecember 22, 2025
Shares owned after13,809
OwnershipDirect
10b5-1 planNo
AmendedNo