UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 July 20, 2006 ------------- (Date of the earliest event reported) Simulations Plus, Inc. ---------------------- (Exact name of Registrant as specified in its charter) California 001-32046 95-4595609 ---------- --------- ---------- (State or other jurisdiction (Commission File Number) (I.R.S. Employer of incorporation) Identification No.) 42505 10th Street West, Lancaster, California 93534 ----------------------------------------------- (Address of principal executive offices) (Zip Code) (661) 723-7723 -------------- Registrant's telephone number, including area code ITEM 8.01 OTHER EVENTS. On July 25, 2006, Simulations Plus, Inc. (AMEX: SLP) updated its July 20, 2006 announcement of a two-for-one stock split to include that the payment date will be Friday, August 11, 2006. ITEM 9.01 EXHIBITS AND REPORTS ON FORM 8-K. (a) Exhibits 99.1 Press release dated July 25, 2006 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 thereunto duly authorized. SIMULATIONS PLUS, INC. Dated: July 25, 2006 By: /s/ Walter Woltosz ----------------------- Walter S. Woltosz Chief Executive Officer EXHIBITS INDEX -------------- Exhibit Number Description -------------- ----------- 99.1 Press release, dated July 25, 2006