J MICHAEL WALSH Insider Trading $CORE Core-Mark Holding Company, Inc.

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of J MICHAEL WALSH. J MICHAEL WALSH is in Core-Mark Holding Company, Inc. ($CORE) and President and CEO in Core-Mark Holding Company, Inc. ($CORE).

J MICHAEL WALSH in Core-Mark Holding Company, Inc.

Trading Symbol: CORE
Industry: WHOLESALE-GROCERIES & GENERAL LINE [5141]
Position of J MICHAEL WALSH:
Holdings: 46,788 shares
Current Value: $1,529,032
Latest Transaction: Jan 23 2015
$CORE Market Capitalization: $1.52B
$CORE Previous Close: $32.68

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

Latest Insider Trading Transactions of J MICHAEL WALSH in Core-Mark Holding Company, Inc.

	1 Week	2 Weeks	1 Month	3 Months	6 Months	1 Year	2 Years
No. of Purchases	0	0	0	0	0	0	0
Value of Purchases ($)	0	0	0	0	0	0	0
No. of Sales	0	0	0	0	0	0	0
Value of Sales ($)	0	0	0	0	0	0	0

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jan 23 2015	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Grant	A	0.01	920	9	46,788	45.9 K to 46.8 K (+2.01 %)
Sep 03 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.88	6,000	299,286	45,868	51.9 K to 45.9 K (-11.57 %)
Sep 03 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.17	2,000	96,330	51,868	53.9 K to 51.9 K (-3.71 %)
Aug 29 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.41	2,000	96,814	53,868	55.9 K to 53.9 K (-3.58 %)
Aug 29 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.50	2,000	97,010	55,868	57.9 K to 55.9 K (-3.46 %)
Aug 27 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.89	2,000	97,785	57,868	59.9 K to 57.9 K (-3.34 %)
Aug 27 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.15	2,000	98,301	59,868	61.9 K to 59.9 K (-3.23 %)
Feb 21 2014	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Grant	A	0.01	767	8	30,934	30.2 K to 30.9 K (+2.54 %)
Dec 02 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	73.51	2,000	147,016	30,167	32.2 K to 30.2 K (-6.22 %)
Nov 26 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	73.00	2,000	146,000	32,167	34.2 K to 32.2 K (-5.85 %)
Nov 26 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	73.74	1,000	73,743	34,167	35.2 K to 34.2 K (-2.84 %)
Nov 26 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	73.56	2,000	147,116	35,167	37.2 K to 35.2 K (-5.38 %)
Nov 21 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	73.56	2,000	147,111	37,167	39.2 K to 37.2 K (-5.11 %)
Nov 21 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	73.54	2,000	147,070	39,167	41.2 K to 39.2 K (-4.86 %)
Nov 21 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	74.39	1,000	74,393	41,167	42.2 K to 41.2 K (-2.37 %)
Nov 18 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	75.15	2,000	150,296	42,167	44.2 K to 42.2 K (-4.53 %)
Nov 18 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	75.36	3,000	226,074	44,167	47.2 K to 44.2 K (-6.36 %)
Nov 18 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	75.66	2,000	151,314	47,167	49.2 K to 47.2 K (-4.07 %)
Apr 19 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.68	154	7,804	49,167	49.3 K to 49.2 K (-0.31 %)
Apr 19 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.90	1,000	50,899	49,321	50.3 K to 49.3 K (-1.99 %)
Apr 19 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.05	1,000	51,046	50,321	51.3 K to 50.3 K (-1.95 %)
Apr 16 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.56	1,000	51,560	51,321	52.3 K to 51.3 K (-1.91 %)
Apr 16 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	52.22	1,000	52,215	52,321	53.3 K to 52.3 K (-1.88 %)
Apr 16 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	52.74	1,000	52,737	53,321	54.3 K to 53.3 K (-1.84 %)
Apr 11 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	52.90	1,000	52,897	54,167	55.2 K to 54.2 K (-1.81 %)
Apr 11 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.23	1,000	51,227	55,167	56.2 K to 55.2 K (-1.78 %)
Apr 11 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.66	1,000	51,664	56,167	57.2 K to 56.2 K (-1.75 %)
Apr 08 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.22	1,000	51,223	57,167	58.2 K to 57.2 K (-1.72 %)
Apr 08 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.08	1,000	51,080	58,167	59.2 K to 58.2 K (-1.69 %)
Apr 08 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.05	1,000	51,052	59,167	60.2 K to 59.2 K (-1.66 %)
Apr 03 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.27	1,000	51,273	60,167	61.2 K to 60.2 K (-1.63 %)
Apr 03 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.30	1,000	51,296	61,167	62.2 K to 61.2 K (-1.61 %)
Apr 03 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.82	1,000	50,825	62,167	63.2 K to 62.2 K (-1.58 %)
Mar 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.24	1,000	51,242	63,167	64.2 K to 63.2 K (-1.56 %)
Mar 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.07	1,000	51,072	64,167	65.2 K to 64.2 K (-1.53 %)
Mar 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.38	1,000	51,379	65,167	66.2 K to 65.2 K (-1.51 %)
Mar 25 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	51.21	1,000	51,210	66,167	67.2 K to 66.2 K (-1.49 %)
Mar 25 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.82	1,000	50,820	67,167	68.2 K to 67.2 K (-1.47 %)
Mar 25 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.64	1,000	50,640	68,167	69.2 K to 68.2 K (-1.45 %)
Mar 20 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.22	1,000	49,218	69,167	70.2 K to 69.2 K (-1.43 %)
Mar 20 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.82	1,000	48,820	70,167	71.2 K to 70.2 K (-1.41 %)
Mar 20 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.04	1,000	49,044	71,167	72.2 K to 71.2 K (-1.39 %)
Mar 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.35	1,000	48,350	80,821	81.8 K to 80.8 K (-1.22 %)
Mar 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.98	1,000	47,975	81,821	82.8 K to 81.8 K (-1.21 %)
Mar 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.43	1,000	47,433	82,821	83.8 K to 82.8 K (-1.19 %)
Mar 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.07	1,000	47,065	83,821	84.8 K to 83.8 K (-1.18 %)
Mar 15 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.45	1,000	49,452	77,821	78.8 K to 77.8 K (-1.27 %)
Mar 15 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.51	1,000	48,509	78,821	79.8 K to 78.8 K (-1.25 %)
Mar 15 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.41	1,000	48,412	79,821	80.8 K to 79.8 K (-1.24 %)
Mar 06 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.24	1,000	47,239	84,821	85.8 K to 84.8 K (-1.17 %)
Mar 06 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	46.28	1,000	46,284	85,821	86.8 K to 85.8 K (-1.15 %)
Mar 06 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.05	1,000	47,048	86,821	87.8 K to 86.8 K (-1.14 %)
Mar 01 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.45	1,000	47,450	87,821	88.8 K to 87.8 K (-1.13 %)
Mar 01 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.84	1,000	47,844	88,821	89.8 K to 88.8 K (-1.11 %)
Mar 01 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.65	1,000	47,650	89,821	90.8 K to 89.8 K (-1.10 %)
Feb 21 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.14	1,000	49,139	93,821	94.8 K to 93.8 K (-1.05 %)
Feb 21 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.77	1,000	49,768	94,821	95.8 K to 94.8 K (-1.04 %)
Feb 21 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.50	1,000	49,504	95,821	96.8 K to 95.8 K (-1.03 %)
Feb 26 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	47.57	1,000	47,571	90,821	91.8 K to 90.8 K (-1.09 %)
Feb 26 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.38	1,000	48,380	91,821	92.8 K to 91.8 K (-1.08 %)
Feb 26 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	48.86	1,000	48,861	92,821	93.8 K to 92.8 K (-1.07 %)
Feb 15 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.41	1,000	49,410	96,821	97.8 K to 96.8 K (-1.02 %)
Feb 15 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.60	1,000	49,595	97,821	98.8 K to 97.8 K (-1.01 %)
Feb 15 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.71	1,000	49,706	98,821	99.8 K to 98.8 K (-1.00 %)
Feb 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.56	1,000	49,560	99,821	100.8 K to 99.8 K (-0.99 %)
Feb 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.15	1,000	49,147	100,821	101.8 K to 100.8 K (-0.98 %)
Feb 12 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.55	1,000	49,554	101,821	102.8 K to 101.8 K (-0.97 %)
Feb 07 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.22	1,000	49,218	102,821	103.8 K to 102.8 K (-0.96 %)
Feb 07 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.02	1,000	49,021	103,821	104.8 K to 103.8 K (-0.95 %)
Feb 07 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Payment of Exercise	F	49.14	2,509	123,292	104,821	107.3 K to 104.8 K (-2.34 %)
Feb 07 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.42	1,000	49,415	107,330	108.3 K to 107.3 K (-0.92 %)
Feb 07 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Grant	A	0.01	14,425	144	108,330	93.9 K to 108.3 K (+15.36 %)
Feb 07 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Grant	A	0.01	1,221	12	93,905	92.7 K to 93.9 K (+1.32 %)
Feb 04 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.42	1,000	50,424	92,684	93.7 K to 92.7 K (-1.07 %)
Feb 04 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.56	1,000	50,562	93,684	94.7 K to 93.7 K (-1.06 %)
Feb 04 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	49.95	1,000	49,949	94,684	95.7 K to 94.7 K (-1.05 %)
Jan 30 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	19.19	3,893	74,707	0
Jan 30 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.18	1,000	50,176	95,684	96.7 K to 95.7 K (-1.03 %)
Jan 30 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.06	1,548	77,497	96,684	98.2 K to 96.7 K (-1.58 %)
Jan 30 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	19.19	3,893	74,707	98,232	94.3 K to 98.2 K (+4.13 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	19.19	3,900	74,841	3,893
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	19.19	1,957	37,555	7,793
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	25.81	3,841	99,136	9,750
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	25.81	4,101	105,847	13,591
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.23	4,900	246,121	94,339	99.2 K to 94.3 K (-4.94 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	19.19	3,900	74,841	99,239	95.3 K to 99.2 K (+4.09 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.20	4,823	242,106	95,339	100.2 K to 95.3 K (-4.82 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	19.19	1,957	37,555	100,162	98.2 K to 100.2 K (+1.99 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	25.81	3,841	99,136	98,205	94.4 K to 98.2 K (+4.07 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.06	5,101	255,368	94,364	99.5 K to 94.4 K (-5.13 %)
Jan 28 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	25.81	4,101	105,847	99,465	95.4 K to 99.5 K (+4.30 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	25.81	703	18,144	17,692
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	36.96	1,807	66,787	18,395
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	36.96	2,629	97,168	20,202
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	0.01	3,400	34	0
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Option Exercise	M	0.01	24,514	245	0
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.43	3,353	169,080	95,364	98.7 K to 95.4 K (-3.40 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	25.81	703	18,144	98,717	98 K to 98.7 K (+0.72 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	36.96	1,807	66,787	98,014	96.2 K to 98 K (+1.88 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Payment of Exercise	F	50.64	5,815	294,472	96,207	102 K to 96.2 K (-5.70 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Payment of Exercise	F	50.64	12,878	652,142	102,022	114.9 K to 102 K (-11.21 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Sell	S	50.40	3,629	182,892	114,900	118.5 K to 114.9 K (-3.06 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	36.96	2,629	97,168	118,529	115.9 K to 118.5 K (+2.27 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	0.01	3,400	34	115,900	112.5 K to 115.9 K (+3.02 %)
Jan 24 2013	CORE	Core-Mark Holding ...	WALSH J MICHAEL		Buy	M	0.01	24,514	245	112,500	88 K to 112.5 K (+27.86 %)
Apr 18 2012	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Option Exercise	M	0.01	1,600	16	3,400
Apr 18 2012	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Buy	M	0.01	1,600	16	87,986	86.4 K to 88 K (+1.85 %)
Jan 23 2012	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Grant	A	0.01	4,000	40	86,386	82.4 K to 86.4 K (+4.86 %)
Jan 31 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Option Exercise	A	0.01	5,000	50	5,000
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Option Exercise	M	0.01	12,674	127	0
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	35.00	100	3,500	82,386	82.5 K to 82.4 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.97	176	6,155	82,486	82.7 K to 82.5 K (-0.21 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.95	100	3,495	82,662	82.8 K to 82.7 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.92	100	3,492	82,762	82.9 K to 82.8 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.83	100	3,483	82,862	83 K to 82.9 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.79	100	3,479	82,962	83.1 K to 83 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.78	200	6,956	83,062	83.3 K to 83.1 K (-0.24 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.70	1,100	38,170	83,262	84.4 K to 83.3 K (-1.30 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.66	187	6,481	84,362	84.5 K to 84.4 K (-0.22 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.64	200	6,928	84,549	84.7 K to 84.5 K (-0.24 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.59	100	3,459	84,749	84.8 K to 84.7 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.58	500	17,290	84,849	85.3 K to 84.8 K (-0.59 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.54	200	6,908	85,349	85.5 K to 85.3 K (-0.23 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.53	900	31,077	85,549	86.4 K to 85.5 K (-1.04 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.52	100	3,452	86,449	86.5 K to 86.4 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.50	300	10,350	86,549	86.8 K to 86.5 K (-0.35 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.48	100	3,448	86,849	86.9 K to 86.8 K (-0.12 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.45	300	10,335	86,949	87.2 K to 86.9 K (-0.34 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.44	100	3,444	87,249	87.3 K to 87.2 K (-0.11 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.41	260	8,947	87,349	87.6 K to 87.3 K (-0.30 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	S	34.38	100	3,438	87,609	87.7 K to 87.6 K (-0.11 %)
Jan 18 2011	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Buy	M	0.01	12,674	127	87,709	75 K to 87.7 K (+16.89 %)
Dec 02 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Option Exercise	M	15.50	30,000	465,000	0
Dec 02 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Buy	M	15.50	30,000	465,000	75,035	45 K to 75 K (+66.61 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Option Exercise	M	15.50	6,215	96,333	30,000
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.37	102	3,608	45,035	45.1 K to 45 K (-0.23 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.69	6	214	45,137	45.1 K to 45.1 K (-0.01 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.68	200	7,136	45,143	45.3 K to 45.1 K (-0.44 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.64	9	321	45,343	45.4 K to 45.3 K (-0.02 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.63	100	3,563	45,352	45.5 K to 45.4 K (-0.22 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.55	200	7,110	45,452	45.7 K to 45.5 K (-0.44 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.54	500	17,770	45,652	46.2 K to 45.7 K (-1.08 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.53	100	3,553	46,152	46.3 K to 46.2 K (-0.22 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.49	2	71	46,252	46.3 K to 46.3 K (0.00 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.48	100	3,548	46,254	46.4 K to 46.3 K (-0.22 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.46	100	3,546	46,354	46.5 K to 46.4 K (-0.22 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.42	300	10,626	46,454	46.8 K to 46.5 K (-0.64 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.41	290	10,269	46,754	47 K to 46.8 K (-0.62 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.40	402	14,231	47,044	47.4 K to 47 K (-0.85 %)
Nov 29 2010	CORE	Core-Mark Holding ...	WALSH J MICHAEL	President and CEO	Sell	M	35.39	212	7,503	47,446	47.7 K to 47.4 K (-0.44 %)

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