SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the SECURITIES AND EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 8, 2003 GERON CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-20859 75-2287752 (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification Number) 230 Constitution Drive 94025 Menlo Park, California (Zip Code) (Address of principal executive offices) (650) 473-7700 (Registrant's telephone number, including area code) N/A (Former Name or Former Address, if Changed Since Last Report) Item 5. Other Events. On April 8, 2003, Geron Corporation, a Delaware corporation (the "Company"), announced that it had entered into an agreement to sell four million shares of Geron common stock to two investors at $4.60 per share, for gross proceeds of $18.4 million. In connection with the sale, the Company issued warrants to purchase an additional 600,000 shares at $6.34 per share. Finally, the Company held an option to put an additional 400,000 shares to the investors, depending on performance of the stock. Total proceeds from the issuances could upon exercise amount to $24 million. The shares were offered through a prospectus supplement to the Company's effective universal shelf registration statement. On April 8, 2003, the Company exercised its put option to the investors, resulting in the issuance of an additional 400,000 shares of Geron common stock at $4.60 per share, raising gross proceeds of approximately $1.8 million. The amended stock purchase agreement is filed as an exhibit to this Current Report on Form 8-K. The summary description of the event is qualified in its entirety by reference to the document filed as an exhibit hereto. 2 Item 7. Exhibits. Exhibits -------- 10.4 Amended and Restated Common Stock Purchase Agreement dated as of April 8, 2003, by and between the Registrant and certain investors. 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. GERON CORPORATION Date: April 9, 2003 By: /s/ Thomas B. Okarma ------------------------------------- Name: Thomas B. Okarma Title: President and Chief Executive Officer 4 EXHIBIT INDEX Exhibits -------- 10.4 Amended and Restated Common Stock Purchase Agreement dated as of April 8, 2003, by and between the Registrant and certain investors. 5