UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 September 27, 2001 (Date of earliest event reported) Commission File Name of Registrant; State of Incorporation; Address of IRS Employer Number Principal Executive Offices; and Telephone Number Identification Number --------------------- ---------------------------------------------------------- ------------------------- 1-16169 EXELON CORPORATION 23-2990190 (a Pennsylvania corporation) 10 South Dearborn Street - 37th Floor P.O. Box 805379 Chicago, Illinois 60680-5379 (312) 394-4321 1-1839 COMMONWEALTH EDISON COMPANY 36-0938600 (an Illinois corporation) 10 South Dearborn Street - 37th Floor P.O. Box 805379 Chicago, Illinois 60680-5379 (312) 394-4321 1-1401 PECO ENERGY COMPANY 23-0970240 (a Pennsylvania corporation) P.O. Box 8699 2301 Market Street Philadelphia, Pennsylvania 19101-8699 (215) 841-4000 Item 5. Other Events. On September 27, 2001, Exelon Corporation issued a press release concerning its earnings outlook. A copy of the press release is attached as Exhibit 99. EXHIBIT INDEX Exhibit Number Description of Exhibit -------------- ---------------------- 99 Press release issued by Exelon Corporation on September 27, 2001 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. Exelon Corporation Commonwealth Edison Company PECO Energy Company By: /s/ Ruth Ann M. Gillis ------------------------------------ Ruth Ann M. Gillis Senior Vice President and Chief Financial Officer Exelon Corporation September 27, 2001