SC 13G/A 1 dsc13ga.txt AMENDMENT #9 TO SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* Westwood Corporation -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $.003 par value -------------------------------------------------------------------------------- (Title of Class of Securities) 961748 20 9 ------------------------------ (CUSIP Number) -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [_] Rule 13d-1(b) [_] Rule 13d-1(c) [X] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP NO. 961748 20 9 13G Page 2 of 4 ------------------------------------------------------------------------------ NAMES OF REPORTING PERSONS. 1 I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). William J. Preston ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) 2 (a) [_] (b) [_] ------------------------------------------------------------------------------ SEC USE ONLY 3 ------------------------------------------------------------------------------ 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States ------------------------------------------------------------------------------ 5 SOLE VOTING POWER NUMBER OF 770,558 SHARES ----------------------------------------------------------- 6 SHARED VOTING POWER BENEFICIALLY -0- OWNED BY ----------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING 770,558 PERSON ----------------------------------------------------------- 8 SHARED DISPOSITIVE POWER WITH -0- ------------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,065,558* * Includes unexercised stock options to acquire 10,000 shares of common stock of the Issuer, a 10% Convertible Subordinated Note in the face amount of $190,000, convertible into 190,000 shares of common stock of the Issuer, and a Warrant to purchase 95,000 shares of common stock of the Issuer, held by the Reporting Person. ------------------------------------------------------------------------------ 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [_] ------------------------------------------------------------------------------ 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 14.8% ------------------------------------------------------------------------------ 12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IN ------------------------------------------------------------------------------ CUSIP NO. 961748 20 9 13G Page 3 of 4 Item 1 (a) Name of Issuer Westwood Corporation (b) Address of Issuer's Principal Executive Offices 12402 East 60th Street Tulsa, Oklahoma 74146 Item 2 (a) Name of Person Filing William J. Preston (b) Address of Principal Business Office or, if none, Residence 1717 Woodstead Court The Woodlands, Texas 77380 (c) Citizenship United States (d) Title of Class of Securities Common Stock, par value $.003 (e) CUSIP Number 961748 20 9 Item 3. If this statement is filed pursuant to (S)(S)240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: Not Applicable Item 4. Ownership. (a) Amount beneficially owned: 1,065,558 shares* *Includes unexercised stock options to acquire 10,000 shares of common stock of the Issuer, a 10% Convertible Subordinated Note in the face amount of $190,000, convertible into 190,000 shares of common stock of the Issuer, and a Warrant to purchase 95,000 shares of common stock of the Issuer, held by the Reporting Person. (b) Percent of class: 14.8% (c) Number of shares as to which the person has: (i) Sole power to vote or to direct the vote 770,558 (ii) Shared power to vote or to direct the vote -0- (iii) Sole power to dispose or to direct the disposition of 770,558 (iv) Shared power to dispose or to direct the disposition of -0- Item 5. Ownership of Five Percent or Less of a Class. Not Applicable CUSIP NO. 961748 20 9 13G Page 4 of 4 Item 6. Ownership of More than Five Percent on Behalf of Another Person. Not Applicable Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company. Not Applicable Item 8. Identification and Classification of Members of the Group. Not Applicable Item 9. Notice of Dissolution of a Group Not Applicable Item 10. Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. /s/ WILLIAM J. PRESTON ---------------------------------- William J. Preston Dated: March 21, 2001