Info
Insider Ownership

Insider Trading & Ownership of Reid Tarlton Campbell

Location: Hanover, NH
Summary: The estimated net worth of Reid Tarlton Campbell is at least $29.5M dollars as of November 26, 2025. Reid Tarlton Campbell is the Director of WHITE MOUNTAINS INSURANCE GROUP LTD and owns shares of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) stock worth about $29.5M.
Signature: Wesley C Bell, by Power of Attorney
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Ownership of Reid Tarlton Campbell

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
WTM	WHITE MOUNTAINS INSURANCE GROUP LTD	Director	$29.5M			Nov 25, 2025

Insider Transactions Reported by Reid Tarlton Campbell:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.