For Shareholders

Home / Team

Press Releases

Date Title
Toggle Summary White Mountains Releases Early Estimates of Losses Caused By Hurricane Katrina
HAMILTON, Bermuda, Sept. 9 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) estimates that its total net losses resulting from the impact of hurricane Katrina on its insurance and reinsurance operations will be in a range of $150 - $300 million pretax, or $100 - $200
Toggle Summary White Mountains Releases Preliminary Estimates of Losses Caused By Chilean Earthquake and European Windstorm Xynthia
HAMILTON, Bermuda, March 24, 2010 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) estimates that its total net losses resulting from the Chilean earthquake will be in a range of $55 - $145 million pretax, or $40 - $105 million after tax.
Toggle Summary White Mountains Renews Lead Commitment in Ark-Sponsored Reinsurance Sidecar
HAMILTON, Bermuda , Dec. 21, 2023 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ("White Mountains") announced today that Ark Insurance Holdings Limited ("Ark"), its specialty property and casualty reinsurance and insurance subsidiary, has renewed Outrigger Re Ltd.
Toggle Summary White Mountains Reorganizes Bermuda Reinsurance Unit
HAMILTON, Bermuda , July 31 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today that it is reorganizing its reinsurance business by converting its Bermuda reinsurance operations into a branch of White Mountains Re Sirius.
Toggle Summary White Mountains Reorganizes Reinsurance Business
HAMILTON, Bermuda, Sept. 10, 2011 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today the reorganization and rebranding of its global reinsurance business. All reinsurance operating entities will be consolidated under Sirius International Insurance
Toggle Summary White Mountains Reports 13% Growth In Book Value For 2003
Fourth Quarter 2003 Acquisitions to Add Significant Value in 2004 HAMILTON, Bermuda, Feb. 3 /PRNewswire-FirstCall/-- White Mountains Insurance Group, Ltd. ended 2003 with a fully converted tangible book value per share of $291, an increase of 13% (including dividends) from $259 at the end of 2002.
Toggle Summary White Mountains Reports 2001 Results
HAMILTON, Bermuda, February 20, 2002 - White Mountains Insurance Group, Ltd. ended 2001 with a fully converted tangible book value per share of $226 (which includes net deferred credits), an increase of $38, or 21% (including dividends), from December 31, 2000.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $353
HAMILTON, Bermuda , Feb. 6 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $353 at December 31, 2008 , a decrease of 20% for the year, including dividends. Adjusted book value per share decreased by 8% in the fourth quarter,
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $378
HAMILTON, Bermuda , July 31 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $378 at June 30, 2009 , an increase of 8% for the quarter. Ray Barrette , Chairman and CEO, commented, "I am pleased with our strong performance.
Toggle Summary White Mountains Reports Adjusted Book Value per Share of $405
HAMILTON, Bermuda, Oct. 31 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $405 at September 30, 2008, a decrease of 9% for the quarter and 6% for the past twelve months, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $406
HAMILTON, Bermuda, July 30, 2010 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $406 at June 30, 2010, a decrease of 1% for the quarter. Ray Barrette, Chairman and CEO, commented, "We had an OK quarter.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $406, Up 7% in the Quarter
HAMILTON, Bermuda , Oct. 30 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $406 at September 30, 2009 , an increase of 7% for the quarter and 15% for the first nine months of 2009, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $411
HAMILTON, Bermuda, April 29, 2010 /PRNewswire via COMTEX/ --White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $411 at March 31, 2010, a decrease of 1% for the quarter, including dividends. Ray Barrette, Chairman and CEO, commented, "It was a tough
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $417, Up 18% in 2009
HAMILTON, Bermuda, Feb 03, 2010 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $417 at December 31, 2009, an increase of 3% for the quarter and 18% for the year, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $429
HAMILTON, Bermuda, Oct 29, 2010 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $429 at September 30, 2010, an increase of 6% for the quarter and 3% for the first nine months of 2010, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $436
HAMILTON, Bermuda, Oct. 28, 2011 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $436 at September 30, 2011 , down 2.6% for the quarter and 0.8% for the first nine months of 2011, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $441
HAMILTON, Bermuda, Feb. 4, 2011 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $441 at December 31, 2010 , an increase of 3% for the fourth quarter of 2010 and 6% for the year, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $444
HAMILTON, Bermuda, Aug. 1 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ended the second quarter with an adjusted book value per share of $444, which was essentially flat for the quarter and an increase of 6% for the past twelve months, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $447, Up 1.6% in the Quarter
HAMILTON, Bermuda, April 29, 2011 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $447 at March 31, 2011 , an increase of 1.6% for the first quarter of 2011, including dividends.
Toggle Summary White Mountains Reports Adjusted Book Value Per Share of $448
HAMILTON, Bermuda, July 29, 2011 /PRNewswire via COMTEX/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $448 at June 30, 2011 , up $1 for the quarter. Ray Barrette , Chairman and CEO, commented, "The main event in the quarter was the agreement to