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): September 30, 2002 IMMUNOMEDICS, INC. (Exact name of registrant as specified in its charter) Delaware 0-12104 61-1009366 (State or other (Commission (IRS Employer jurisdiction of File Number) Identification No.) incorporation) 300 American Road, Morris Plains, New Jersey 07950 (Address of principalexecutive offices) (zip code) Registrant's telephone number, including area code: (973) 605-8200 Not applicable (Former name or former address, if changed since last report) Item 7. Financial Statements and Exhibits. (c) Exhibits 99.1 Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), dated September 30, 2002. Item 9. Regulation FD Disclosure On September 30, 2002, the Registrant filed its Annual Report on Form 10-K for the fiscal year ended June 30, 2002 with the Securities and Exchange Commission. In connection with the filing of the Form 10-K, attached hereto as an exhibit are certifications of the Registrant's Chief Executive Officer and Chief Financial Officer, as required by 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. These certifications are being furnished herewith solely to accompany the Form 10-K, pursuant to 18 U.S.C. Section 1350, are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and are not to be incorporated by reference into any of the Registrant's filings with the Securities and Exchange Commission, whether filed prior to or after the furnishing of these certifications, regardless of any general or specific incorporation language in any such filing. 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. IMMUNOMEDICS, INC. Date: September 30, 2002 /s/ CYNTHIA L. SULLIVAN ------------------------------ Cynthia L. Sullivan President and Chief Executive Officer 3 EXHIBIT INDEX Exhibit Number Description - ------- ----------- 99.1 Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), dated September 30, 2002. 4 Exhibit 99.1 Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), each of the undersigned officers of Immunomedics, Inc., a Delaware corporation (the "Company"), does hereby certify, to such officer's knowledge, that: The Form 10-K for the year ended June 30, 2002 (the "Form 10-K") of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company. Dated: September 30, 2002 /s/ Cynthia L. Sullivan ---------------------------------------- Cynthia L. Sullivan President and Chief Executive Officer Dated: September 30, 2002 /s/ Gerard G. Gorman ---------------------------------------- Gerard G. Gorman Vice President, Finance and Chief Financial Officer The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) and is not being filed as part of a separate disclosure document. 5