424B3 1 c58739b1e424b3.txt PROSPECTUS SUPPLEMENT 1 Prospectus Supplement to Prospectus dated September 27, 2000, File No. 333-45406 Filed Pursuant to Rule 424(b)(3) ILLINOIS SUPERCONDUCTOR CORPORATION SUPPLEMENT TO PROSPECTUS DATED SEPTEMBER 27, 2000 This is a Supplement to Illinois Superconductor Corporation's Prospectus, dated September 27, 2000 (the "Prospectus"), with respect to the offer and sale of up to 3,440,526 shares of Common Stock, including preferred stock purchase rights, of Illinois Superconductor Corporation. This Supplement amends and supplements certain information contained in the Prospectus. We encourage you to read this Supplement carefully. -------------------- NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSIONER HAS APPROVED OR DISAPPROVED OF THE SHARES OF ILLINOIS SUPERCONDUCTOR CORPORATION COMMON STOCK TO BE ISSUED UNDER THIS SUPPLEMENT AND THE PROSPECTUS OR DETERMINED IF THIS SUPPLEMENT OR THE PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. -------------------- THE DATE OF THIS SUPPLEMENT IS NOVEMBER 20, 2000. QUARTERLY REPORT ON FORM 10-Q On November 14, 2000, the Company filed its Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2000. The Company hereby incorporates by reference into this Supplement and the Prospectus this Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2000. A copy of the Company's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2000 is being provided to you along with this Supplement. Information about documents that have been incorporated by reference into the Prospectus is included in the section of the Prospectus captioned "Where You Can Find More Information."