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): February 29, 2000 Shire Pharmaceuticals Group plc - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) England and Wales - -------------------------------------------------------------------------------- (State or other jurisdiction of incorporation) 0-29630 N/A - ---------------------------------------- --------------------------------- (Commission File Number) (IRS Employer Identification No.) East Anton, Andover, Hampshire SP10 5RG England - -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip code) Registrant's telephone number, including area code 44-1264-333455 ------------------------------ - -------------------------------------------------------------------------------- (Former name or former address, if changed since last report) Item 5. Other Events On February 29, 2000, Shire Pharmaceuticals Group plc (the "Company") announced its results of operations for the three months ended December 31, 1999 and the year ended December 31, 1999. The Company also announced unaudited results of operations for the month of January 2000. The Company's press release announcing such results of operations is attached hereto as Exhibit 99.1. Item 7. Financial Statements and Exhibits 99.1 Press Release dated February 29, 2000. -2- 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. Dated: March 1, 2000 SHIRE PHARMACEUTICALS GROUP PLC By: /s/ Neil Harris, Esq. --------------------------------- Neil Harris, Esq. EXHIBIT INDEX Number Description 99.1 Press Release dated February 29, 2000