QuickLinks -- Click here to rapidly navigate through this document

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM 10-K/A
Amendment No. 1

(Mark One)  

ý

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2002

or

o

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                            to                             

Commission file number 0-15930


SOUTHWALL TECHNOLOGIES INC.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization)
  94-2551470
(I.R.S. Employer
Identification Number)

1029 Corporation Way, Palo Alto, California
(Address of principal executive offices)

 

94303
(Zip Code)

Registrant's telephone number, including area code: (650) 962-9111

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act:

Common Stock
(Title of Class)


        Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý    No o

        Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

        The approximate aggregate market value of the Common Stock held by non-affiliates of the registrant on March 27, 2003 (based upon the closing sales price of the Common Stock on the Nasdaq National Market System on such date) was $13,529,657. For purposes of this disclosure, Common Stock held by stockholders whose ownership exceeds five percent of the Common Stock outstanding as of March 27, 2003, and Common Stock held by officers and directors of the registrant has been excluded in that such persons may be deemed to be "affiliates" as that term is defined in the rules and regulations promulgated under the Securities Act of 1933, as amended. This determination is not necessarily conclusive.

        Indicate by check mark whether the registrant is an accelerated filer (as defined by Rule 12b-2 of the Securities Exchange Act of 1934). Yes o    No ý

        The number of shares of the registrant's Common Stock outstanding on March 27, 2003 was 12,527,460.




Explanatory Note

        This Form 10-K/A (the "Form 10-K/A") of Southwall Technologies Inc. (the "Company") for the fiscal year ended December 31, 2002 is being filed for the sole purpose of correcting typographical errors appearing in the table contained in Part II, Item 5 (Market for Registrant's Common Stock and Related Stockholder Matters) showing the high and low closing sales prices per share for our common stock as reported by Nasdaq during each quarter during the last two completed fiscal years. The amounts shown for 2001 were incorrect. We have included Item 5, as amended, in this Form 10-K/A in its entirety.




PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON STOCK AND RELATED STOCKHOLDER MATTERS

        Our common stock has been traded on the Nasdaq National Market System under the symbol "SWTX" since the completion of our initial public offering in June 1987. Prices in the following table represent the high and low closing sales prices per share for our common stock as reported by Nasdaq during the periods indicated.

2001

  High
  Low
1st Quarter   $ 3.63   $ 2.00
2nd Quarter     3.47     2.03
3rd Quarter     5.41     2.97
4th Quarter     7.26     4.55

2002


 

High


 

Low

1st Quarter   $ 12.99   $ 7.19
2nd Quarter     15.45     4.68
3rd Quarter     4.76     1.95
4th Quarter     3.50     2.04

        On March 23, 2003, the last reported sale price for our common stock as reported on Nasdaq was $1.10 per share. On such date, there were approximately 372 holders of record of our common stock, and we believe there were approximately 1,500 beneficial owners of our common stock.

        We have never declared or paid any cash dividends on our common stock, and we do not anticipate paying cash dividends in the foreseeable future. We currently intend to retain future earnings, if any, to fund the expansion and growth of our business. Payment of future cash dividends, if any, will be at the discretion of our board of directors after taking into account various factors, including our financial condition, operating results, current and anticipated cash needs and plans for expansion.




SIGNATURES

        Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this amendment on Form 10-K/A to be signed on its behalf by the undersigned, thereunto duly authorized, as of the 8th day of April, 2003.

    SOUTHWALL TECHNOLOGIES INC.

 

 

By:

/s/  
THOMAS G. HOOD      
Thomas G. Hood
President

        I, Thomas G. Hood, certify that:


Date: April 8, 2003   /s/  THOMAS G. HOOD      
Thomas G. Hood
Chief Executive Officer

        I, Michael E. Seifert, certify that:


Date: April 8, 2003   /s/  MICHAEL E. SEIFERT      
Michael E. Seifert
Chief Financial Officer



QuickLinks

PART II
SIGNATURES