L Kent Statler

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
COL	$95.10	39,600	$3,765,960.00	37,002	2015-06-01	Filing
COL	$97.45	37,400	$3,644,592.60	37,002	2015-05-01	Filing
COL	$95.88	25,800	$2,473,704.00	37,002	2015-04-01	Filing
COL	$94.72	1,600	$151,552.00	62,802	2015-04-01	Filing
COL	$92.03	17,845	$1,642,275.35	37,002	2015-03-10	Filing
COL	$70.46	710	$50,028.59	27,419	2013-07-29	Filing
COL	$70.60	22,635	$1,598,046.84	28,129	2013-07-29	Filing
COL	$59.70	2,310	$137,907.00	23,410	2012-01-23	Filing
COL	$59.68	100	$5,968.00	25,720	2012-01-23	Filing
COL	$59.67	200	$11,934.00	25,820	2012-01-23	Filing
COL	$59.66	113	$6,741.58	26,020	2012-01-23	Filing
COL	$59.65	1,618	$96,513.70	26,133	2012-01-23	Filing
COL	$59.63	500	$29,815.00	27,751	2012-01-23	Filing
COL	$59.62	300	$17,886.00	28,251	2012-01-23	Filing
COL	$59.61	374	$22,294.14	28,551	2012-01-23	Filing
COL	$59.60	100	$5,960.25	28,925	2012-01-23	Filing
COL	$59.60	9,643	$574,722.80	29,025	2012-01-23	Filing
COL	$59.60	200	$11,919.00	38,668	2012-01-23	Filing
COL	$59.59	100	$5,958.60	38,868	2012-01-23	Filing
COL	$59.59	299	$17,817.41	38,968	2012-01-23	Filing