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 May 11, 2004 Date of report (Date of earliest event reported) Cyanotech Corporation (Exact name of registrant as specified in its charter) NEVADA 000-14602 91-1206026 (State or other jurisdiction (Commission File Number) (IRS Employer of incorporation) Identification Number) 73-4460 Queen Kaahumanu Highway, Suite #102, Kailua Kona, HI 96740 (Address of principal executive offices) (808) 326 - 1353 (Registrant's telephone number) Not Applicable (Former name or former address, if changed since last report) Item 12 Results of Operations and Financial Condition Attached hereto as Exhibit 99.1 and incorporated by reference herein is financial information for Cyanotech Corporation for fiscal year 2004 fourth quarter and year-end (ended March 31, 2004) and forward-looking statements as presented in a press release of May 11, 2004. The information in this report shall be deemed incorporated by reference into any registration statement heretofore or hereafter filed under the Securities Act of 1933, as amended, except to the extent that such information is superceded by information as of a subsequent date that is included in or incorporated by reference into such registration statement. The information in this report shall not be treated as filed for purposes of the Securities Exchange Act of 1934, as amended. 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. CYANOTECH CORPORATION (Registrant) May 11, 2004 By: /s/ Jeffrey H. Sakamoto ----------------------- Jeffrey H. Sakamoto Vice President - Finance & Administration (Principal Financial and Accounting Officer) 3 EXHIBIT INDEX Exhibit Number Description 99.1 Press release dated May 11, 2004