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 19, 1999 ACE LIMITED - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Cayman Islands 1-11778 98-0091805 - -------------------------------------------------------------------------------- (State or other jurisdiction (Commission I.R.S. Employer (of Incorporation File Number) Identification No.) The ACE Building 30 Woodbourne Avenue Hamilton, Bermuda HM 08 - -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including are code: (441) 295-5200 -------------- Not Applicable - -------------------------------------------------------------------------------- (Former name or former address, if changed since last report) 1 On January 12, 1999, ACE Limited ("ACE") announced that it had signed an agreement to purchase the U.S. domestic and international property and casualty insurance business of CIGNA Corporation (the "Acquired Business"). The closing of the transaction is subject to a number of conditions, including various regulatory approvals. The transaction is currently expected to close on or about July 1, 1999. Included as Exhibit 99.1 to this Current Report on Form 8-K is condensed consolidated unaudited pro forma financial information for ACE for the year ended September 30, 1998 and as of and for the three months ended March 31, 1998. Included as Exhibit 99.2 to this Current Report on Form 8-K are audited financial statements for the Acquired Business for each of the years in the three-year period ended December 31, 1998. Item 7. Financial Statements and Exhibits. (a) Pro Forma Financial Information See Exhibit 99.1 (b) Audited Financial Statements of Acquired Business See Exhibit 99.2 (c) Exhibits 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 thereunto duly authorized. Dated: May 19, 1999 ACE LIMITED By: /s/ Christopher Z. Marshall ---------------------------- Christopher Z. Marshall Chief Financial Officer EXHIBIT INDEX Exhibit Number Description - ------- ----------- 99.1 Unaudited pro forma condensed consolidated financial information of ACE. 99.2 Audited financial statements for the Acquired Business for each of the years in the three-year period ended December 31, 1998.