UNITED STATES 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): DECEMBER 8, 2004 MAGELLAN HEALTH SERVICES, INC. (Exact Name of Registrant as Specified in Charter) DELAWARE 1-6639 58-1076937 (State or Other Jurisdiction (Commission File (IRS Employer of Incorporation) Number) Identification No.) 16 MUNSON ROAD FARMINGTON, CONNECTICUT 06032 (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (860) 507-1900 N/A (Former Name or Former Address, if Changed Since Last Report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): |_| Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |_| Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |_| Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |_| Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ITEM 8.01. OTHER EVENTS On December 8, 2004, Magellan Health Services, Inc. issued the press release attached as Exhibit 99.1 to this Current Report on Form 8-K, which is incorporated by reference into this Item. 2 ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS. (c) Exhibits 99.1 Press release of Magellan Health Services, Inc. dated December 8, 2004 3 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. MAGELLAN HEALTH SERVICES, INC. By: /s/ Mark S. Demilio --------------------------------------- Name: Mark S. Demilio Title: Executive Vice President and Chief Financial Officer Dated: December 8, 2004 4 EXHIBIT INDEX EXHIBIT NO. EXHIBIT ------------ ---------------------------------------------------------------- 99.1 Press release of Magellan Health Services, Inc. dated December 8, 2004 5