Lester J Mark - Insider Stock Trading

TC	Stat	Stk	Ins	Fil	+d	+w	+m	+q	+h	+y	avg
P	%ret	1	1	1	21	10	38	1	24	70	27
P	%wins				100	100	100	100	100	100	100
S	%ret	1	1	17	-0	0	-0	1	1	3	1
S	%wins				76	41	41	41	35	29	44

Filing Date	T Date	Ticker	Issuer	Inc	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	L	Qty	oc	Own	H	r2y	r1y	r6m	r3m	r6w	r3w	r7d	r3d	f1d	f1w	f1m	f3m	f6m	f1y
10/10/08 18:15	10/10/08	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	P	137	13.67	33	10	3	367	D	-38	-52	-63	-72	-64	-57	-51	-33	21	10	38	1	24	70
6/24/08 16:02	6/23/08	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-865	66.23	33	-13	-4	320	D	135	88	77	46	21	23	16	3	-3	1	-27	-36	-73	-68
6/12/08 17:08	6/10/08	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-1,102	60.26	33	-18	-5	333	D	110	70	55	28	15	7	7	3	2	13	9	-30	-73	-56
5/8/08 18:07	5/6/08	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-145	55.61	33	-3	-1	394	D	73	60	42	53	22	13	4	7	0	1	3	-18	-60	-61
2/28/08 16:00	2/26/08	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-316	45.86	33	-7	-2	404	D	53	50	40	20	15	23	5	2	-2	1	-1	17	7	-68
1/14/08 17:56	1/11/08	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-350	39.63	33	-9	-2	413	D	23	46	9	6	4	3	-1	3	-2	-8	2	21	57	-61
9/18/07 13:38	9/14/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-229	35.13	33	-7	-2	382	D	6	21	16	-7	-2	7	3	1	2	0	8	9	37	11
8/27/07 10:09	8/24/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-293	32.87	33	-9	-2	389	D	22	5	6	-5	-8	-8	0	0	-1	-2	7	16	41	46
7/9/07 11:51	7/5/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.d	57	10.08	33	6	1	401	D	40	18	28	9	2	-5	1	0	0	3	1	4	12	84
6/29/07 11:51	6/28/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S.d	-197	35.07	33	-6	-2	355	D	52	21	19	12	0	-2	-7	-2	0	2	-2	2	13	86
6/29/07 11:51	6/28/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.d	57	10.08	33	6	2	355	D	52	21	19	12	0	-2	-7	-2	0	2	-2	2	13	86
5/14/07 17:37	5/10/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.dm	105	8.88	33	12	3	355	D	71	5	8	16	11	4	-4	-3	-1	2	3	-1	20	64
5/14/07 17:37	5/10/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S.dm	-406	34.18	33	-12	-3	355	D	71	5	8	16	11	4	-4	-3	-1	2	3	-1	20	64
3/28/07 13:38	3/27/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.d	39	5.20	33	8	2	352	D	50	0	8	3	5	3	5	2	0	3	8	12	14	49
3/28/07 13:38	3/27/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S.d	-233	31.06	33	-8	-2	352	D	50	0	8	3	5	3	5	2	0	3	8	12	14	49
2/1/07 15:08	1/30/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-89	29.20	33	-3	-1	352	D	73	-13	-10	-8	-5	7	2	2	0	-2	1	20	17	26
1/26/07 10:36	1/24/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.d	105	8.88	33	12	3	359	D	73	-13	-3	-4	-8	5	4	0	0	2	8	16	17	25
1/25/07 10:52	1/23/07	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-150	29.72	33	-5	-1	347	D	81	-9	2	-2	-6	8	7	4	-3	-1	2	13	15	23
11/17/06 14:01	11/15/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-129	32.79	33	-4	-1	316	D	92	10	10	3	11	-1	1	0	1	1	-4	-8	10	19
10/3/06 16:45	9/29/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.d	39	5.20	33	8	2	319	D	83	-24	-8	-6	-7	0	0	0	2	2	14	-1	14	27
8/29/06 11:53	8/25/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-222	32.36	33	-7	-3	218	D	128	14	7	7	10	-1	2	0	0	2	-9	3	-4	1
8/9/06 16:02	8/7/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-157	32.18	33	-5	-2	225	D	129	13	1	-3	11	10	0	-2	0	-3	-4	0	-9	5
6/28/06 17:19	6/26/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S	-90	29.89	33	-3	-2	190	b									3	2	6	-2	-1	18
5/12/06 17:23	5/10/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	M.d	49	7.80	33	6	3	193	b									-2	-6	-10	2	4	10
5/12/06 17:23	5/10/06	CHK	Chesapeake Energy Corp	OK	Energy	OilPrd	Crude Petroleum & Natural Gas	Lester J Mark	OK	O	EVP	S.d	-205	32.87	33	-6	-3	193	b									-2	-6	-10	2	4	10

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

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