David Allen Tanner
Director · WHITE MOUNTAINS INSURANCE GROUP LTD
Individual
- 2025
- Aug 31, 2026
- 4
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies David Allen Tanner 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.
- George Manning Rountree - $10.25M in WTM purchases and sales in the last 12 months
- 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 David Allen Tanner?
David Allen Tanner is a corporate insider, tracked as Director of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David Allen Tanner submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
