A Ronald Ballschmiede

Insider Trading: Sales

Company	Symbol	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Chicago Bridge & Iron Co N V	CBI	$58.02	4,281	Officer	238,193	2013-04-04	Filing
Semgroup Corp	SEMG	$29.89	1,382	Director	10,526	2012-06-01	Filing
Semgroup Corp	SEMG	$25.89	1,449	Director	11,908	2011-12-15	Filing
Chicago Bridge & Iron Co N V	CBI	$42.00	17,205	Officer	166,619	2011-04-05	Filing
Semgroup Corp	SEMG	$26.89	3,623	Director	9,711	2010-12-23	Filing
Chicago Bridge & Iron Co N V	CBI	$29.00	9,213	Officer	141,905	2010-11-09	Filing
Chicago Bridge & Iron Co N V	CBI	$27.50	4,790	Officer	151,118	2010-11-05	Filing
Chicago Bridge & Iron Co N V	CBI	$26.00	11,075	Officer	155,908	2010-10-25	Filing