JOHN JOSEPH BYRNE Insider Trading

General | Insider Transactions | Monthly Overview

Address: C/O WHITE MOUNTAINS INSURANCE GROUP, LTD 80 SOUTH MAIN STREET HANOVER 03755 NH

Companies in which JOHN JOSEPH BYRNE is an Insider

WHITE MOUNTAINS INSURANCE GROUP LTD

Trading Symbol: WTM
Industry: FIRE, MARINE & CASUALTY INSURANCE [6331]
Position of JOHN JOSEPH BYRNE:
Holdings: 635,896 shares
Current Value: $566,767,746
Latest Transaction: Jul 13 2012
$WTM Market Capitalization: $4.00B
$WTM Previous Close: $891.29

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD View transactions

Latest Insider Trading Transactions of JOHN JOSEPH BYRNE

Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jul 13 2012	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH		Sell	D	528.45	50,000	26,422,500	635,896	685.9 K to 635.9 K (-7.29 %)
May 19 2006	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH	Director	Buy	P	0.00	4,325	0	4,325	0 to 4.3 K
May 19 2006	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH	Director	Gift	G	0.00	553	0	428,305	428.9 K to 428.3 K (-0.13 %)
Sep 12 2005	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH	Director	Gift	G	0.00	478	0	2,441	2.9 K to 2.4 K (-16.38 %)
Sep 12 2005	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH	Director	Gift	G	0.00	78,691	0	427,450	506.1 K to 427.5 K (-15.55 %)
Sep 12 2005	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH	Director	Gift	G	0.00	15,740	0	506,141	521.9 K to 506.1 K (-3.02 %)
Sep 12 2005	WTM	WHITE MOUNTAINS IN ...	BYRNE JOHN JOSEPH	Director	Gift	G	0.00	2,854	0	290,477	293.3 K to 290.5 K (-0.97 %)

View all JOHN JOSEPH BYRNE insider transactions.