Insider Transactions - InsideArbitrage

Symbol	Relationship	Date	Transaction	Cost	# Shares	Value($)	Total Shares	Form 4
COST	Executive Vice President	Oct 22, 2018	Option Exercise	$229.06	7,843	1,796,518	44,677	Oct 24, 2018, 07:07 PM
COST	Executive Vice President	Oct 02, 2018	Option Exercise	$236.35	4,266	1,008,269	45,269	Oct 04, 2018, 03:13 PM
COST	Executive Vice President	May 24, 2017	Option Exercise	$173.01	449	77,681	64,981	Jan 09, 2018, 10:39 AM
COST	Executive Vice President	Nov 13, 2017	Sale	$172.78	8,111	1,401,419	66,751	Nov 14, 2017, 09:48 AM
COST	Executive Vice President	Oct 22, 2017	Option Exercise	$160.77	3,172	509,962	77,225	Oct 24, 2017, 02:37 PM
COST	Executive Vice President	Oct 02, 2017	Option Exercise	$165.89	626	103,847	78,034	Oct 05, 2017, 05:29 PM
COST	Executive Vice President	Oct 02, 2017	Option Exercise	$165.89	4,769	791,129	77,408	Oct 03, 2017, 05:22 PM
COST	Executive Vice President	Jun 05, 2017	Sale	$181.60	3,000	544,809	62,607	Jun 05, 2017, 02:45 PM
COST	Executive Vice President	May 24, 2017	Option Exercise	$173.01	1,075	185,986	65,607	May 25, 2017, 09:44 PM
COST	Executive Vice President	Feb 03, 2017	Sale	$168.25	4,948	832,501	64,532	Feb 03, 2017, 12:51 PM
COST	Executive Vice President	Oct 22, 2016	Option Exercise	$148.97	3,310	493,091	72,006	Oct 25, 2016, 03:17 PM
COST	Executive Vice President	Oct 05, 2016	Option Exercise	$149.98	4,185	627,666	72,790	Oct 07, 2016, 04:17 PM
COST	Executive Vice President	Jul 11, 2016	Sale	$166.58	7,500	1,249,372	58,535	Jul 11, 2016, 03:19 PM
COST	Executive Vice President	Mar 31, 2016	Sale	$159.00	4,455	708,345	66,035	Apr 01, 2016, 11:27 AM
COST	Executive Vice President	Oct 22, 2015	Option Exercise	$158.15	3,581	566,335	73,262	Oct 26, 2015, 06:22 PM
COST	Executive Vice President	Oct 12, 2015	Sale	$154.01	6,779	1,044,000	74,046	Oct 14, 2015, 02:23 PM
COST	Executive Vice President	Sep 24, 2015	Option Exercise	$144.87	5,119	741,590	81,725	Sep 28, 2015, 12:20 PM
COST	Executive Vice President	Feb 27, 2015	Option Exercise	$146.96	1,599	234,989	64,944	Mar 03, 2015, 06:23 PM
COST	Executive Vice President	Dec 18, 2014	Sale	$141.07	3,648	514,623	63,345	Dec 18, 2014, 06:59 PM
COST	Executive Vice President	Oct 22, 2014	Option Exercise	$130.54	3,223	420,730	69,840	Oct 23, 2014, 03:41 PM
COST	Executive Vice President	Sep 26, 2014	Option Exercise	$125.54	4,725	593,177	70,216	Sep 30, 2014, 11:35 AM
COST	Executive Vice President	Aug 11, 2014	Sale	$118.94	12,000	1,427,280	53,941	Aug 11, 2014, 07:45 PM
COST	Executive Vice President	Mar 14, 2014	Sale	$114.00	3,000	342,000	65,941	Mar 14, 2014, 02:05 PM
COST	Executive Vice President	Jan 02, 2014	Sale	$118.40	4,655	551,161	68,941	Jan 03, 2014, 05:55 PM
COST	Executive Vice President	Nov 01, 2013	Sale	$118.93	4,000	475,720	73,596	Nov 01, 2013, 06:39 PM
COST	Executive Vice President	Sep 20, 2013	Option Exercise	$117.94	1,907	224,912	90,769	Nov 01, 2013, 11:32 AM
COST	Executive Vice President	Oct 22, 2013	Option Exercise	$117.81	13,173	1,551,911	88,109	Oct 24, 2013, 11:18 AM
COST	Executive Vice President	Sep 20, 2013	Option Exercise	$117.94	2,547	300,393	88,862	Sep 23, 2013, 05:28 PM
COST	Executive Vice President	May 02, 2013	Sale	$109.11	3,000	327,330	66,409	May 02, 2013, 04:41 PM
COST	Executive Vice President	Dec 21, 2012	Sale	$99.00	2,000	198,000	69,409	Dec 21, 2012, 03:52 PM
COST	Executive Vice President	Dec 12, 2012	Option Exercise	$98.31	2,160	212,350	71,409	Dec 13, 2012, 06:34 PM
COST	Executive Vice President	Oct 22, 2012	Option Exercise	$95.00	3,646	346,370	72,287	Oct 24, 2012, 05:15 PM
COST	Executive Vice President	Oct 17, 2012	Option Exercise	$96.78	751	72,682	72,895	Oct 19, 2012, 11:55 AM
COST	Executive Vice President	Sep 26, 2012	Option Exercise	$101.00	2,205	222,705	73,646	Sep 28, 2012, 05:17 PM
COST	Executive Vice President	Jul 27, 2012	Sale	$96.79	2,500	241,977	50,851	Jul 27, 2012, 07:28 PM
COST	Executive Vice President	Mar 08, 2012	Sale	$88.00	4,000	352,000	53,351	Mar 08, 2012, 01:38 PM
COST	Executive Vice President	Oct 22, 2011	Option Exercise	$85.30	2,431	207,364	59,174	Oct 24, 2011, 06:16 PM
COST	Executive Vice President	Oct 19, 2011	Option Exercise	$84.38	905	76,364	59,782	Oct 24, 2011, 12:08 PM
COST	Executive Vice President	Oct 20, 2011	Option Exercise	$43.79	10,700	468,553	59,782	Oct 24, 2011, 12:08 PM
COST	Executive Vice President	Oct 21, 2011	Option Exercise	$43.79	26,800	1,173,572	86,582	Oct 24, 2011, 12:08 PM
COST	Executive Vice President	Oct 21, 2011	Sale	$84.91	26,800	2,275,588	59,782	Oct 24, 2011, 12:08 PM
COST	Executive Vice President	Oct 19, 2011	Option Exercise	$84.38	905	76,364	59,782	Oct 20, 2011, 05:00 PM
COST	Executive Vice President	Oct 17, 2011	Option Exercise	$82.36	899	74,042	60,687	Oct 19, 2011, 01:23 PM
COST	Executive Vice President	Sep 28, 2011	Option Exercise	$83.79	2,852	238,969	36,586	Oct 03, 2011, 03:05 PM
COST	Executive Vice President	Sep 28, 2011	Option Exercise	$83.79	2,852	238,969	36,586	Sep 30, 2011, 11:05 AM
COST	Executive Vice President	Apr 26, 2011	Option Exercise	$37.35	17,500	653,625	56,938	Apr 26, 2011, 03:56 PM
COST	Executive Vice President	Apr 12, 2011	Option Exercise	$76.45	317	24,235	39,463	Apr 19, 2011, 03:55 PM
COST	Executive Vice President	Apr 12, 2011	Sale	$76.19	25	1,905	39,438	Apr 19, 2011, 03:55 PM
COST	Executive Vice President	Apr 12, 2011	Option Exercise	$76.45	317	24,235	39,463	Apr 14, 2011, 11:23 AM
COST	Executive Vice President	Oct 22, 2010	Option Exercise	$64.03	1,216	77,860	40,388	Oct 26, 2010, 05:23 PM
COST	Executive Vice President	Oct 19, 2010	Option Exercise	$62.21	912	56,736	40,996	Oct 21, 2010, 01:34 PM
COST	Executive Vice President	Oct 17, 2010	Option Exercise	$63.70	912	58,094	41,908	Oct 19, 2010, 05:54 PM
COST	Executive Vice President	Oct 08, 2010	Option Exercise	$39.07	37,500	1,464,975	80,320	Oct 12, 2010, 10:45 AM
COST	Executive Vice President	Jul 28, 2010	Option Exercise	$37.35	20,000	747,000	62,820	Jul 29, 2010, 02:51 PM

Desktop Version

Symbol	Relationship	Date	Transaction	Value($)
COST	Executive Vice President	Oct 22, 2018	Option Exercise	1,796,518
COST	Executive Vice President	Oct 02, 2018	Option Exercise	1,008,269
COST	Executive Vice President	May 24, 2017	Option Exercise	77,681
COST	Executive Vice President	Nov 13, 2017	Sale	1,401,419
COST	Executive Vice President	Oct 22, 2017	Option Exercise	509,962
COST	Executive Vice President	Oct 02, 2017	Option Exercise	103,847
COST	Executive Vice President	Oct 02, 2017	Option Exercise	791,129
COST	Executive Vice President	Jun 05, 2017	Sale	544,809
COST	Executive Vice President	May 24, 2017	Option Exercise	185,986
COST	Executive Vice President	Feb 03, 2017	Sale	832,501
COST	Executive Vice President	Oct 22, 2016	Option Exercise	493,091
COST	Executive Vice President	Oct 05, 2016	Option Exercise	627,666
COST	Executive Vice President	Jul 11, 2016	Sale	1,249,372
COST	Executive Vice President	Mar 31, 2016	Sale	708,345
COST	Executive Vice President	Oct 22, 2015	Option Exercise	566,335
COST	Executive Vice President	Oct 12, 2015	Sale	1,044,000
COST	Executive Vice President	Sep 24, 2015	Option Exercise	741,590
COST	Executive Vice President	Feb 27, 2015	Option Exercise	234,989
COST	Executive Vice President	Dec 18, 2014	Sale	514,623
COST	Executive Vice President	Oct 22, 2014	Option Exercise	420,730
COST	Executive Vice President	Sep 26, 2014	Option Exercise	593,177
COST	Executive Vice President	Aug 11, 2014	Sale	1,427,280
COST	Executive Vice President	Mar 14, 2014	Sale	342,000
COST	Executive Vice President	Jan 02, 2014	Sale	551,161
COST	Executive Vice President	Nov 01, 2013	Sale	475,720
COST	Executive Vice President	Sep 20, 2013	Option Exercise	224,912
COST	Executive Vice President	Oct 22, 2013	Option Exercise	1,551,911
COST	Executive Vice President	Sep 20, 2013	Option Exercise	300,393
COST	Executive Vice President	May 02, 2013	Sale	327,330
COST	Executive Vice President	Dec 21, 2012	Sale	198,000
COST	Executive Vice President	Dec 12, 2012	Option Exercise	212,350
COST	Executive Vice President	Oct 22, 2012	Option Exercise	346,370
COST	Executive Vice President	Oct 17, 2012	Option Exercise	72,682
COST	Executive Vice President	Sep 26, 2012	Option Exercise	222,705
COST	Executive Vice President	Jul 27, 2012	Sale	241,977
COST	Executive Vice President	Mar 08, 2012	Sale	352,000
COST	Executive Vice President	Oct 22, 2011	Option Exercise	207,364
COST	Executive Vice President	Oct 19, 2011	Option Exercise	76,364
COST	Executive Vice President	Oct 20, 2011	Option Exercise	468,553
COST	Executive Vice President	Oct 21, 2011	Option Exercise	1,173,572
COST	Executive Vice President	Oct 21, 2011	Sale	2,275,588
COST	Executive Vice President	Oct 19, 2011	Option Exercise	76,364
COST	Executive Vice President	Oct 17, 2011	Option Exercise	74,042
COST	Executive Vice President	Sep 28, 2011	Option Exercise	238,969
COST	Executive Vice President	Sep 28, 2011	Option Exercise	238,969
COST	Executive Vice President	Apr 26, 2011	Option Exercise	653,625
COST	Executive Vice President	Apr 12, 2011	Option Exercise	24,235
COST	Executive Vice President	Apr 12, 2011	Sale	1,905
COST	Executive Vice President	Apr 12, 2011	Option Exercise	24,235
COST	Executive Vice President	Oct 22, 2010	Option Exercise	77,860
COST	Executive Vice President	Oct 19, 2010	Option Exercise	56,736
COST	Executive Vice President	Oct 17, 2010	Option Exercise	58,094
COST	Executive Vice President	Oct 08, 2010	Option Exercise	1,464,975
COST	Executive Vice President	Jul 28, 2010	Option Exercise	747,000

Insider Transactions by McKay John D

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