SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
DAVIS THOMAS L

(Last) (First) (Middle)
1500 ILLINOIS STREET

(Street)
GOLDEN CO 80401-1887

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
OYO GEOSPACE CORP [ OYOG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
02/13/2007
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, par value $.01 per share 02/13/2007 M 6,300 A $14 14,464(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $27.5 17,614(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $6.81 20,764(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $15.13 23,914(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $25.25 27,064(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $13.73 30,214(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $6.94 33,364(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $17.69 36,514(2) D
Common Stock, par value $.01 per share 02/13/2007 M 3,150 A $19.09 39,664(2) D
Common Stock, par value $.01 per share 02/14/2007 S(1) 31,500 D $68.5 8,164(2) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Options (right to buy) $14 02/13/2007 M(3) 6,300 11/26/1998 11/26/2007 Common Stock 6,300 $0(4) 28,350(5) D
Options (right to buy) $27.5 02/13/2007 M(3) 3,150 06/30/1999 06/30/2008 Common Stock 3,150 $0(4) 25,200(5) D
Options (right to buy) $6.81 02/13/2007 M(3) 3,150 03/02/2000 03/02/2009 Common Stock 3,150 $0(4) 22,050(5) D
Options (right to buy) $15.13 02/13/2007 M(3) 3,150 01/31/2001 01/31/2010 Common Stock 3,150 $0(4) 18,900(5) D
Options (right to buy) $25.25 02/13/2007 M(3) 3,150 01/26/2002 01/26/2011 Common Stock 3,150 $0(4) 15,750(5) D
Options (right to buy) $13.73 02/13/2007 M(3) 3,150 02/28/2003 02/28/2012 Common Stock 3,150 $0(4) 12,600(5) D
Options (right to buy) $6.94 02/13/2007 M(3) 3,150 03/01/2004 03/01/2013 Common Stock 3,150 $0(4) 9,450(5) D
Options (right to buy) $17.69 02/13/2007 M(3) 3,150 01/09/2005 01/09/2014 Common Stock 3,150 $0(4) 6,300(5) D
Options (right to buy) $19.09 02/13/2007 M(3) 3,150 02/08/2006 02/08/2015 Common Stock 3,150 $0(4) 3,150(6) D
Explanation of Responses:
1. These shares were issued upon the exercise of options (described in Table II) and then sold.
2. The disclosures filed on Form 4 in previous years incorrectly included the securities underlying the vested options held by Dr. Davis in the number of shares beneficially owned. This Form 4 correctly lists only actual shares held by Dr. Davis in Item 5 of this Table I.
3. The shares that were issued upon the exercise of these options were sold, as is presented in Table I.
4. Pursuant to General Instruction C(iii) of Form 4, the exercise price is reported in Item 2 of this Table II.
5. Includes options to purchase the Company's Common Stock having varying exercise dates, expiration dates and exercise prices.
6. Reflects the option to purchase shares of the Company's Common Stock at an exercise price of $45.40 per share. This option became exercisable on February 8, 2007 and will expire on February 8, 2016.
Thomas L. Davis, Ph.D. 02/15/2007
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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