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) February 5, 2004 CAPSTONE TURBINE CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15957 95-4180883 (State or other jurisdiction (Commission file number) (I.R.S. Employer of incorporation) Identification No.) 21211 Nordhoff Street, Chatsworth, California 91311 (Address of principal executive offices) (818) 734-5300 (Registrant's telephone number, including area code) Item 12. Results of Operations and Financial Condition On February 5, 2004, Capstone Turbine Corporation (the "Company") announced via a press release the Company's financial results for the third quarter of its fiscal year 2004. A copy of the Company's press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under Item 12 of Form 8-K and are furnished to, but not filed with, the Securities and Exchange Commission. 2 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. CAPSTONE TURBINE CORPORATION (Registrant) Date: February 5, 2004 By: /s/ Karen Clark --------------- Karen Clark Chief Financial Officer 3 Exhibit Index ------------- Exhibit Number Description of Document - -------------- ----------------------- 99.1 Press Release of Capstone Turbine Corporation, dated February 5, 2004, reporting its fiscal 2004 third quarter results. 4