UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT FILED PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 19, 2004 ANTIGENICS INC. (Exact name of registrant as specified in its charter) DELAWARE 000-29089 06-1562417 (State or other (Commission file number) (I.R.S. Employer Identification No.) jurisdiction of incorporation of organization) 630 FIFTH AVENUE, SUITE 2100 NEW YORK, NEW YORK 10111 (Address of principal executive offices and zip code) (212) 994-8200 (Registrant's telephone number, including area code) Item 7. Financial Statements, Pro Forma Financial Statements and Exhibits. (c) Exhibits: 99.1 Press Release dated February 19, 2004 Item 12. Disclosure of Results of Operations and Financial Condition On February 19, 2004, Antigenics Inc. announced its financial results for the quarter and year ended December 31, 2003. The full text of the press release issued in connection with the announcement is attached as Exhibit 99.1 to this current report on Form 8-K. The information in this report on Form 8-K and the Exhibit attached hereto is being furnished pursuant to Item 12 of Form 8-K, Disclosure of Results of Operations and Financial Condition. The information shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such a filing. 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. ANTIGENICS INC. Date: February 19, 2004 By: /s/ Garo H. Armen -------------------- Garo H. Armen, Ph.D. Chairman and Chief Executive Officer EXHIBIT INDEX The following designated exhibits are filed herewith: Exhibits: 99.1 Press Release dated February 19, 2004