GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2011

Jul 11, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OYO GEOSPACE CORP (OYOG)
CIK: 0001001115
Period of Report: 2011-07-07

Reporting Person: SHEEN MICHAEL J (Director, SVP & Chief Technical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-07-07	Common Stock, par value $.01 per share	S	28	$102.34	Disposed	45999	Direct
2011-07-07	Common Stock, par value $.01 per share	S	1163	$104.76	Disposed	44836	Direct
2011-07-07	Common Stock, par value $.01 per share	S	523	$105.10	Disposed	44313	Direct
2011-07-07	Common Stock, par value $.01 per share	S	286	$106.00	Disposed	44027	Direct
2011-07-08	Common Stock, par value $.01 per share	S	285	$103.11	Disposed	43742	Direct
2011-07-08	Common Stock, par value $.01 per share	S	1715	$104.79	Disposed	42027	Direct
2011-07-08	Common Stock, par value $.01 per share	S	2000	$106.0	Disposed	40027	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.00 to $104.99, inclusive. The reporting person undertakes to provide OYO Geospace Corporation, any security holder of OYO Geospace Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3), (4) and (5) to this Form 4.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $105.00 to $105.99.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.00 to $103.99.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.01 to $105.00.