Giles E. Harrison

EVP & Chief Strategy Officer, White Mountains Insurance Group.

Companies

White Mountains Insurance GroupPresident Feb 27, 2026 to now¹
White Mountains Insurance GroupEVP & Chief Strategy Officer Jun 10, 2024 to Feb 28, 2025²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

White Mountains Insurance Group WTM2,677 shares³$5.8M at $2,166.33Feb 27, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

Feb 25, 2026Granted 775 shares of White Mountains Insurance Group³
Feb 26, 2025Granted 900 shares of White Mountains Insurance Group⁴
Jun 10, 2024Granted 1,000 shares of White Mountains Insurance Group⁵

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARWhite Mountains Insurance Group, President
2
SEC EDGARWhite Mountains Insurance Group, EVP & Chief Strategy Officer
3
SEC EDGARWhite Mountains Insurance Group shares after the filing of Feb 27, 2026
4
SEC EDGARForm 4 filed Feb 28, 2025
5
SEC EDGARForm 4 filed Jun 10, 2024