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: December 8, 1999 State Street Corporation ..................................................... (Exact name of registrant as specified in its charter) Massachusetts 0-5108 04-2456637 .......................................................................... (State of Incorporation) (Commission File) (IRS Employer Identification Number) Number) 225 Franklin Street, Boston, Massachusetts 02110 ............................................................. (Address of principal executive offices) (Zip code) Registrant's telephone number, including area code: (617) 786-3000 Item 5. Other Events. On December 8, 1999, Registrant announced that it has agreed with Citigroup, Inc. to participate in the formation of a jointly-owned (50/50) company to provide products and services for defined contribution, pension, and health and welfare plans. The Registrant also announced the expected financial impact of the joint-venture on its financial goals. The press releases issued by Registrant in connection with the announcement are filed herewith as Exhibits 99.1 and 99.2 and are incorporated herein by reference. Item 7. Financial Statements and Exhibits. (c) Exhibits. 99.1 Form of press release on joint venture dated December 8, 1999 99.2 Form of press release on financial impact dated December 8, 1999 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. STATE STREET CORPORATION /s/ Rex S. Schuette ----------------------------- Name: Rex S. Schuette Title: Senior Vice President and Chief Accounting Officer Date: December 9, 1999 EXHIBIT INDEX Exhibit - ------- 99.1 Form of press release on joint venture dated December 8, 1999 99.2 Form of press release on financial impact dated December 8, 1999