1 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): October 6, 1997 Biogen, Inc. (Exact name of Registrant as specified in its charter) Massachusetts 0-12042 04-3002117 (State or other (Commission (IRS Employer jurisdiction of File Number) Identification No.) incorporation) 14 Cambridge Center Cambridge, MA 02142 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (617) 679-2000 2 Item 5. Other Events. On October 6, 1997, the Registrant publicly disseminated a press release announcing the authorization by the Registrant's Board of Directors of the repurchase by the Registrant of up to 2,500,000 shares of the Registrant's Common Stock. The Registrant expects that the stock repurchases will commence in the near term and will occur from time to time over the next two years. The stock repurchase program may be discontinued at any time. The information contained in the press release is incorporated herein by reference and filed as Exhibit 99.1 hereto. Item 7. Financial Statements and Exhibits. (c) Exhibits. 99.1 The Registrant's Press Release dated October 6, 1997. 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. Biogen, Inc. By: /s/ Michael J. Astrue ------------------------------------ Michael J. Astrue Vice President - General Counsel Date: October 6, 1997 4 EXHIBIT INDEX Exhibit Number Description 99.1 The Registrant's Press Release dated October 6, 1997