X0304 4 2012-02-01 0 0000817366 VCA ANTECH INC WOOF 0000901473 ANTIN ARTHUR J C/O VCA ANTECH, INC. 12401 WEST OLYMPIC BOULEVARD LOS ANGELES CA 90064 0 1 0 0 COO & Senior Vice President Common Stock, par value $0.001 per share 2012-02-01 4 A 0 36772 A 523817 D The shares were acquired in connection with the acquisition of ThinkPets, Inc. ("ThinkPets") by the Issuer, at a per share price of $22.18, equal to the simple average of the daily volume weighted average closing sales price of Issuer's common stock as listed on the NASDAQ Global Market for each of the 10 consecutive trading days prior to the closing of the acquisition, payable in shares of ThinkPets common stock, par value $0.0001. /s/ Arthur J. Antin 2012-02-03