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): May 1, 2006 MISSION WEST PROPERTIES, INC. (Exact name of registrant as specified in its charter) Maryland Commission File Number: 95-2635431 (State or other jurisdiction of 1-8383 (I.R.S. Employer incorporation) Identification) 10050 Bandley Drive, Cupertino, CA 95014 (Address of principal executive offices) (408) 725-0700 (Registrant's telephone number, including area code) 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 (see General Instruction A.2. below): [ ] 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 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION. (a) The following information is being furnished by the Company as required for Item 2.02(a) of this report and shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934: On May 1, 2006, the Company issued a press release announcing its earnings results for the first quarter ended March 31, 2006. The press release is attached to this Current Report as Exhibit 99.1 and is incorporated by reference in response to Item 2.02(a) of this report. -------------------------------------------------------------------------------- SIGNATURE 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. MISSION WEST PROPERTIES, INC. Date: May 1, 2006 By: /s/ Wayne N. Pham ----------------------------- Wayne N. Pham Vice President of Finance and Controller - 2 -