J Michael Sheen

Insider Trading: Sales

Company	Symbol	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Oyo Geospace Corp	OYOG	$51.00	24	Officer, Director	55,066	2010-08-19	Filing
Oyo Geospace Corp	OYOG	$52.00	553	Officer, Director	55,000	2010-08-18	Filing
Oyo Geospace Corp	OYOG	$51.90	189	Officer, Director	55,553	2010-08-18	Filing
Oyo Geospace Corp	OYOG	$51.77	317	Officer, Director	55,742	2010-08-18	Filing
Oyo Geospace Corp	OYOG	$51.76	29	Officer, Director	56,059	2010-08-18	Filing
Oyo Geospace Corp	OYOG	$50.00	5,790	Officer, Director	55,000	2010-04-22	Filing
Oyo Geospace Corp	OYOG	$50.00	2,833	Officer, Director	60,790	2010-04-21	Filing
Oyo Geospace Corp	OYOG	$50.00	2,528	Officer, Director	63,623	2010-04-20	Filing
Oyo Geospace Corp	OYOG	$50.00	594	Officer, Director	66,151	2010-04-16	Filing
Oyo Geospace Corp	OYOG	$50.00	274	Officer, Director	66,745	2010-03-10	Filing
Oyo Geospace Corp	OYOG	$50.14	200	Officer, Director	67,019	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.06	100	Officer, Director	67,219	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.04	100	Officer, Director	67,319	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.08	40	Officer, Director	67,419	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.16	100	Officer, Director	67,459	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.12	408	Officer, Director	67,559	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.20	1,144	Officer, Director	67,967	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.09	135	Officer, Director	69,111	2010-03-09	Filing
Oyo Geospace Corp	OYOG	$50.15	754	Officer, Director	69,246	2010-03-09	Filing