BioTime, Inc. (NYSE MKT: BTX) and its recently formed subsidiary BioTime Acquisition Corporation (BAC) jointly announced today that they have entered into a definitive Asset Contribution Agreement with Geron Corporation (Nasdaq: GERN) to acquire the intellectual property, including patents and patent applications, and other assets related to Geron’s human embryonic stem (hES) cell programs consistent with the financial terms outlined in the letter of intent announced on November 15, 2012. Under the definitive agreement, Geron will contribute to BAC intellectual property, certain cell lines and other assets, including the Phase 1 clinical trial of hES cell-derived oligodendrocytes in patients with acute spinal cord injury, and Geron’s autologous cellular immunotherapy program. BioTime will contribute to BAC $5 million in cash, 8,902,077 BioTime common shares to be held by BAC, five-year warrants to purchase 8,000,000 common shares of BioTime at a price of $5.00 per share (“BioTime Warrants”), rights to use certain clinical grade hES cell lines, a sublicense to use certain patents for stem cell differentiation technology, and minority stakes in two of BioTime’s subsidiaries, OrthoCyte Corporation and Cell Cure Neurosciences Ltd. BAC will also pay to Geron royalties on the sale of products that are commercialized, if any, in reliance upon Geron patents contributed or licensed to BAC. A private investor has also agreed to provide an equity investment of $5 million in BAC and a $5 million equity investment in BioTime in conjunction with the transaction. Geron pioneered the field of regenerative medicine in the mid-1990s by organizing the first effort to isolate human embryonic stem (hES) cells. hES cells are early-stage stem cells that are capable of becoming all of the cell types in the human body, and therefore are widely recognized as a means of manufacturing cells that are potentially useful in regenerating tissue function for a wide array of degenerative diseases. Currently, Geron’s hESC patent portfolio includes over 400 patents and patent applications that will be transferred or sublicensed to BAC. Geron obtained the first approval from the Food and Drug Administration for human clinical trials of a product manufactured from hES cells.