George Manning Rountree
Chief Executive Officer, Director · WHITE MOUNTAINS INSURANCE GROUP LTD
- 2025
- Dec 22, 2025
- 1
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies George Manning Rountree files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Philip A. Gelston - $338K in WTM purchases and sales in the last 12 months
- Reid Tarlton Campbell - WTM
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Frequently asked questions
Who is George Manning Rountree?
George Manning Rountree is a corporate insider, tracked as Chief Executive Officer, Director of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did George Manning Rountree last file a Form 4?
The only primary Form 4 on record is dated 22 December 2025.
Has George Manning Rountree been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($10.25M) across all tracked filings.
