HAMILTON, Bermuda , Oct. 28, 2013 /PRNewswire/ --  White Mountains Insurance Group, Ltd. (NYSE: WTM) reported adjusted book value per share of $622 at September 30, 2013 , up 2.8% for the quarter and 5.9% for the first nine months of 2013, including dividends.

HAMILTON, Bermuda , July 30, 2013 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported adjusted book value per share of $605 at June 30, 2013 , essentially break-even for the second quarter of 2013 and up 3.1% for the first six months of 2013, including dividends.

HAMILTON, Bermuda , April 29, 2013 /PRNewswire/ --  White Mountains Insurance Group, Ltd. (NYSE:WTM) reported adjusted book value per share of $606 at March 31, 2013 , up 3.3% for the first quarter of 2013, including dividends. Ray Barrette , Chairman and CEO, commented, "The passing of Jack Byrne

HAMILTON, Bermuda , Feb. 5, 2013 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported adjusted book value per share of $588 at December 31, 2012 , up 2.4% for the quarter and 8.6% for the year, including dividends. Ray Barrette , Chairman and CEO, commented, "It was a

HAMILTON, Bermuda , Oct. 30, 2012 /PRNewswire/ --  White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $574 at September 30, 2012 , which was up 1.6% for the quarter and 6.0% for the first nine months, including dividends.

HAMILTON, Bermuda , July 27, 2012 /PRNewswire/ --  White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $565 at June 30, 2012 , which was break-even for the quarter and up 4.4% for the first six months, including dividends.

HAMILTON, Bermuda, April 27, 2012 /PRNewswire via COMTEX/ --White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $565 at March 31, 2012 , an increase of 4.5% for the first quarter of 2012, including dividends.

HAMILTON, Bermuda , Feb. 3, 2012 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $542 at December 31, 2011 , an increase of 23% for the year, including dividends.  On October 7, 2011 , White Mountains completed the sale of Esurance and

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.

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

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.

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.

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.

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.

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

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.

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.

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.

HAMILTON, Bermuda , May 1 /PRNewswire-FirstCall/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported an adjusted book value per share of $352 at March 31, 2009 , which was essentially flat for the quarter, including dividends. Adjusted comprehensive net loss in the first quarter of 2009