WHITE MOUNTAINS REPORTS FIRST QUARTER RESULTS PR Newswire HAMILTON, Bermuda, May 9, 2024 HAMILTON, Bermuda , May 9, 2024 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported book value per share of $1,742 and adjusted book value per share of $1,797 as of March 31 , 2024. Book value per share and adjusted book value per share increased 5% and 6% in the first quarter of 2024, including dividends. Manning Rountree, CEO, commented, "We had a good first quarter, with ABVPS up...