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): April 27, 1998 AMERICAN BIOGENETIC SCIENCES, INC. (Exact name of registrant as specified in its charter) DELAWARE (State or other jurisdiction of incorporation) 0-19041 11-2655906 (Commission File Number) (IRS Employer Identification No.) 1375 Akron Street, Copiague, New York 11726 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code 516-789-2600 Not Applicable (Former name or former address, if changed since last report) Item 5.Other Events On April 27,1998, the Company issued a press release (the "Press Release") reporting its acquisition of Stellar Bio Systems, Inc. A copy of the Press Release is attached to this report as Exhibit 99.01. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits. (a) Financial statements of business acquired: Not applicable. (b) Pro forma financial information: Not applicable. (c)Exhibits: 99.01: American Biogenetic Sciences, Inc. Press Release dated April 27, 1998. 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. AMERICAN BIOGENETIC SCIENCES, INC. (Registrant) Dated: April 27, 1998 By: /s/ Josef C. Schoell Josef C. Schoell Vice President Finance EXHIBIT INDEX Exhibit Number Description 99.01 American Biogenetic Sciences, Inc. Press Release dated April 27, 1998.