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 12, 2004 HENNESSY ADVISORS, INC. (Exact name of registrant as specified in its charter) California 000-49872 68-0176227 (State or other jurisdiction (Commission (IRS Employer of incorporation) File No.) Identification No.) 750 Grant Avenue, Suite 100 Novato, California 94945 (Address of principal executive offices) (Zip Code) Registrant's telephone number including area code: (415) 899-1555 (Former name or former address, if changed since last report) 1 Item 7. Financial Statements and Exhibits. (c) Exhibits Exhibit 99.1 Earnings release issued May 12, 2004, by Hennessy Advisors, Inc., for the three months ended March 31, 2004. Item 12. Results of Operations and Financial Condition The registrant has issued an earnings release for the three months ended March 31, 2004, which is included herein as Exhibit 99.1. 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. HENNESSY ADVISORS, INC. May 12, 2004 By: /s/ Neil J. Hennessy ---------------------------------- Neil J. Hennessy President EXHIBIT INDEX Exhibit 99.1 Earnings release issued May 12, 2004, by Hennessy Advisors, Inc., for the three months ended March 31, 2004. 3