GEOSPACE TECHNOLOGIES CORP — Director's Dealing 2010

Sep 21, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OYO GEOSPACE CORP (OYOG)
CIK: 0001001115
Period of Report: 2010-09-17

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-09-17	Common Stock, par value $.01 per share	M	2302	$17.94	Acquired	57302	Direct
2010-09-17	Common Stock, par value $.01 per share	S	350	$49.50	Disposed	56952	Direct
2010-09-17	Common Stock, par value $.01 per share	S	150	$49.51	Disposed	56802	Direct
2010-09-17	Common Stock, par value $.01 per share	S	985	$50	Disposed	55817	Direct
2010-09-17	Common Stock, par value $.01 per share	S	317	$50.05	Disposed	55500	Direct
2010-09-17	Common Stock, par value $.01 per share	S	500	$50.31	Disposed	55000	Direct
2010-09-20	Common Stock, par value $.01 per share	M	2793	$17.94	Acquired	57793	Direct
2010-09-20	Common Stock, par value $.01 per share	S	500	$49.65	Disposed	57293	Direct
2010-09-20	Common Stock, par value $.01 per share	S	500	$49.82	Disposed	56793	Direct
2010-09-20	Common Stock, par value $.01 per share	S	1793	$50	Disposed	55000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-09-17	Options (right to buy)	$17.94	M	2302	Disposed	2010-11-10	Common Stock (2302)	Direct
2010-09-20	Options (right to buy)	$17.94	M	2793	Disposed	2010-11-10	Common Stock (2793)	Direct

Footnotes

F1: The shares were issued upon the exercise of options (described in Table II) and then immediately sold. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: The shares that were issued upon the exercise of options were immediately sold, as is presented in Table I.

F3: This option became exercisable in equal annual installments over a four year period. The option became fully exercisable on November 10, 2004.

F4: This number represents the partial exercise of the option issued to Mr. Sheen in November 2000 to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation.

F5: Pursuant to General Instruction 4(c)(iii) of Form 4, the exercise price is reported in Cell 2 of this Table II.

F6: Includes options to purchase shares of common stock, par value $.01 per share, of OYO Geospace Corporation having varying exercise dates, expiration dates and exercise prices.