K - WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)
25 filings available.
0
Insider buys, 12 months
$0 by 0 insiders
3
Insider sales, 12 months
$20.8M by 3 insiders
Most active WTM insiders: Rountree George Manning and Campbell Reid Tarlton.
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Full Timeline
Every tracked SEC filing, congressional trade, 13F/N-PORT holding change, lobbying disclosure, government contract award, SEC enforcement action, and pay-vs-performance filing for 0000776867, merged into one feed.
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- 8-K Filing: WHITE MOUNTAINS INSURANCE GROUP LTD8-KNov 5, 2026
- 4 Filing: WHITE MOUNTAINS INSURANCE GROUP LTD4Aug 31, 2026Filed by Tanner David Allen