UNITED STATES SECURITIES AND EXCHANGE COMMISSION, WASHINGTON, D.C. 20549 --------------------------- SCHEDULE TO/A-3 TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) or 13(e)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 Sonoma Valley Bancorp --------------------- (Name of Subject Company (Issuer)) Sonoma Valley Bancorp --------------------- (Name of Filing Person (Issuer)) Common Stock, No Par Value -------------------------- (Title of Class of Securities) 835592 106 ---------- (CUSIP Number of Class of Securities) Mel Switzer, Jr. President and Chief Executive Officer 202 W. Napa Street Sonoma, California 95476 (707) 935-3200 -------------- (Name, address and telephone numbers of persons authorized to receive notices and communications on behalf of filing persons) Copy to: Daniel B. Eng David C. Adams Bartel Eng & Schroder 1331 Garden Highway, Suite 300 Sacramento, California 95833 (916) 442-0400 CALCULATION OF FILING FEE Transaction valuation* Amount of filing fee** $3,500,000 $443.45 * Calculated solely for the purpose of determining the filing fee in accordance with Rule 0-11(b)(1). This calculation assumes the purchase of 100,000 shares at $35.00 per share. ** Previously paid [ ] Check the box if any part of the fee is offset as provided by Rule 011(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number or the Form or Schedule and the date of its filing. Amount Previously Paid: Not applicable Form or Registration Number: Not applicable Filing Party: Not applicable Date Filed: Not applicable [ ] Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer: Check the appropriate boxes below to designate any transactions to which the statement relates: [ ] third party tender offer subject to Rule 14d-1. [X] issuer tender offer subject to Rule 13e-4. [ ] going private transaction subject to Rule 13e-3. [ ] amendment to Schedule 13D under Rule 13d-2. Check the following box if the filing is a final amendment reporting the results of a tender offer: [ ] Introductory Statement This Amendment No. 3 to the issuer tender offer of Sonoma Valley Bancorp, Inc., a California corporation, (the "Company") to purchase up to 100,000 shares of its Common Stock, no par value. Sonoma Valley Bancorp is offering to purchase these shares at $35.00 per share, net to the seller in cash, without interest, upon the terms and subject to the conditions set forth in the Offer to Purchase, dated April 6, 2004, and in the related Letter of Transmittal, which, as amended or supplemented from time to time, together constitute the "Offer." This Amendment No. 3 to the Issuer Tender Offer on Schedule TO is filed in satisfaction of the reporting requirements of Rule 13e-4(c)(1) promulgated under the Securities Exchange Act of 1934, as amended. Item 12 of the Schedule TO, which incorporates by reference the information contained in the Offer to Purchase, is hereby amended and supplemented as follows. ITEM 12. EXHIBITS. (a)(1)(i) Offer to Purchase, dated April 6, 2004.(1) (a)(1)(ii) Letter of Transmittal, together with Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9. (1) (a)(1)(iii) Letter to Shareholders of Sonoma Valley Bancorp from Mel Switzer, Jr., President and Chief Executive Officer, dated April 6, 2004. (1) (a)(1)(iv) Notice of Guaranteed Delivery. (1) (a)(1)(v) Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees, dated April 6, 2004. (1) (a)(1)(vi) Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees to their Clients, dated April 6, 2004. (1) (a)(1)(vii) Supplement Number 1 to the Offer to Purchase, dated April 22, 2004. (2) (a)(1)(viii) Supplement Number 2 to the Offer to Purchase dated April 29, 2004. (3) (a)(5)(i) Press Release dated April 6, 2004. (1) (a)(5)(ii) Press Release dated May 5, 2004 announcing supplemental information to the Offer to Purchase. (b) Not applicable (c) Not applicable (d) Not applicable (e) Not applicable (f) Not applicable (g) Not applicable (h) Not applicable (1) Incorporated by reference from Schedule TO-I filed on April 6, 2004. (2) Incorporated by reference from Schedule TO-I/A-1 filed on April 22, 2004. (3) Incorporated by reference from Schedule TO-I/A-1 filed on April 29, 2004. SIGNATURE After due 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. Date: May 5, 2004 SONOMA VALLEY BANCORP By: /s/ Mel Switzer, Jr. ------------------------------- Mel Switzer, Jr., President and Chief Executive Officer (Principal Executive Officer)