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): July 22, 2003 Commission file number 1-12215 Quest Diagnostics Incorporated One Malcolm Avenue Teterboro, NJ 07608 (201) 393-5000 Delaware (State of Incorporation) 16-1387862 (I.R.S. Employer Identification Number) Item 7. Financial Statements and Exhibits c. Exhibits -------- 99.1 Press release of Quest Diagnostics Incorporated dated July 22, 2003. Item 9. Regulation FD Disclosure The following information is furnished pursuant to Item 9, "Regulation FD Disclosure" and Item 12, "Results of Operations and Financial Condition." On July 22, 2003, Quest Diagnostics Incorporated issued a press release announcing, among other things, its results for the quarter and six months ended June 30, 2003. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein. Signature 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. July 22, 2003 QUEST DIAGNOSTICS INCORPORATED By: /s/ Robert A. Hagemann ---------------------------------------------- Robert A. Hagemann Vice President and Chief Financial Officer