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 Date of report (Date of earliest event reported): March 11, 2003 -------------- NORTHERN TRUST CORPORATION -------------------------- (Exact Name of Registrant as Specified in Its Charter) Delaware 0-5965 36-2723087 -------- ------ ---------- (State or Other (Commission File (I.R.S. Employer Jurisdiction Number) Identification No.) of Incorporation) 50 South LaSalle Street, Chicago, Illinois 60675 ------------------------------------------ ----- (Address of Principal Executive Offices) (Zip Code) Registrant's Telephone Number, Including Area Code: (312) 630-6000 -------------- ITEM 5. OTHER EVENTS. In a press release dated March 11, 2003, Northern Trust Corporation announced certain management changes. The press release is included as Exhibit 99 hereto and is incorporated herein by reference. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. (c) Exhibits Exhibit Number Description of Exhibit ------- ---------------------- 99 Northern Trust Corporation Press Release dated March 11, 2003. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. NORTHERN TRUST CORPORATION -------------------------- (Registrant) Date: March 11, 2003 By: /s/ William A. Osborn -------------------------------- Name: William A. Osborn Title: Chairman, Chief Executive Officer and President EXHIBIT INDEX Exhibit Number Description of Exhibit Page Number Herein ------- ---------------------- ------------------ 99 Northern Trust Corporation Press Release Pages 5-6 dated March 11, 2003.