DAVID A. TANNER

Corporate Board Profile

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WHITE MOUNTAINS INSURANCE GROUP LTD

Filing Date Source Excerpt
2019-04-08 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of over 30 years in the financial services industry.
2020-04-07 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of over 30 years in the financial services industry.
2021-04-07 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of almost 35 years in the financial services industry.
2022-04-06 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of 35 years in the financial services industry.
2023-04-05 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of 35 years in the financial services industry.
2024-04-04 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of 35 years in the financial services industry.
2025-04-02 Mr. Tanner has extensive executive and board-level service and financial expertise gained over the course of 35 years in the financial services industry.

Data sourced from SEC filings. Last updated: 2025-07-01