4 1 nasdaq 0001193868 Director Southwall Technologies Inc. 0000813619 94-2551470 01/28/03 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. 1. Name and Address of Reporting Person(s) REAGAN, JOSEPH B. 1029 Corporation Way P.O. Box 10052 Palo Alto, CA 94303 2. Issuer Name and Ticker or Trading Symbol Southwall Technologies Inc. (SWTX) 3. I.R.S. Identification Number of Reporting Person, if an entity (Voluntary) 4. Statement for Month/Day/Year 1/28/2003 5. If Amendment, Date of Original (Month/Day/Year) 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) [X] Director [ ] 10% Owner [ ] Officer (give title below) [ ] Other (specify below) Chairman of the Board of Direc 7. Individual or Joint/Group Filing (Check Applicable Line) [X] Form filed by One Reporting Person [ ] Form filed by More than One Reporting Person

SIGNATURE OF REPORTING PERSON /S/ By: John Lipscomb For: Joseph Reagan DATE 01/29/03

SOUTHWALL TECHNOLOGIES INC /DE/ 4