Gelston Philip A — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Gelston Philip A has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $338K.

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-22WTMWHITE MOUNTAINS INSURANCE GROUP LTDA — Grant or award135$0.00
2025-12-16WTMWHITE MOUNTAINS INSURANCE GROUP LTDS — Open-market sale165$2,048.51$338K

Companies — Last 90 Days

Frequently Asked Questions

Who is Gelston Philip A?

Gelston Philip A is a corporate insider — currently tracked as Director of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Gelston Philip A submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has Gelston Philip A been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 1 open-market sales ($338K) across all tracked filings.

Where can I see all of Gelston Philip A's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

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