UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ----------------- FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 25, 2006 VCA ANTECH, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-16783 95-4097995 (State or Other Jurisdiction (Commission (IRS Employer of Incorporation) File Number) Identification No.) 12401 West Olympic Boulevard Los Angeles, California 90064-1022 (Address of Principal Executive Offices) (310) 571-6500 (Registrant's Telephone Number) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: |_| Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |_| Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |_| Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |_| Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) 1 ITEM 8.01: OTHER EVENTS Reference is made to the press release of Registrant issued on October 25, 2006, regarding supplemental information to accompany its financial guidance, which is incorporated herein by reference. A copy of the press release is attached to this Form 8-K as Exhibit 99.1. ITEM 9.01: FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS (c) Exhibits 99.1 Press release dated October 25, 2006, regarding supplemental information to accompany financial guidance. 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. October 25, 2006 VCA Antech, Inc. /s/ Tomas W. Fuller ------------------------- By: Tomas W. Fuller Its: Chief Financial Officer 3 EXHIBIT INDEX Exhibits 99.1 Press release dated October 25, 2006, regarding supplemental information to accompany financial guidance. 4