J Michael Sheen

Insider Trading: Sales

Company	Symbol	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Oyo Geospace Corp	OYOG	$50.00	3,470	Officer, Director	55,000	2010-09-13	Filing
Oyo Geospace Corp	OYOG	$48.00	1,000	Officer, Director	58,470	2010-09-13	Filing
Oyo Geospace Corp	OYOG	$50.00	1,444	Officer, Director	55,000	2010-09-09	Filing
Oyo Geospace Corp	OYOG	$50.00	709	Officer, Director	55,000	2010-09-07	Filing
Oyo Geospace Corp	OYOG	$50.50	73	Officer, Director	55,000	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.45	62	Officer, Director	55,073	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.40	1,008	Officer, Director	55,135	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.36	35	Officer, Director	56,143	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.35	2	Officer, Director	56,178	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.33	43	Officer, Director	56,180	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.25	1,234	Officer, Director	56,223	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.15	15	Officer, Director	57,457	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.05	109	Officer, Director	57,472	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.00	1,938	Officer, Director	57,581	2010-09-03	Filing
Oyo Geospace Corp	OYOG	$50.00	149	Officer, Director	55,000	2010-09-02	Filing
Oyo Geospace Corp	OYOG	$50.00	2,278	Officer, Director	55,000	2010-09-01	Filing
Oyo Geospace Corp	OYOG	$50.00	365	Officer, Director	55,000	2010-08-27	Filing
Oyo Geospace Corp	OYOG	$50.00	255	Officer, Director	55,000	2010-08-23	Filing
Oyo Geospace Corp	OYOG	$51.25	30	Officer, Director	55,000	2010-08-19	Filing
Oyo Geospace Corp	OYOG	$51.53	36	Officer, Director	55,030	2010-08-19	Filing