This Amendment No. 24 (“Amendment No. 24”) amends and supplements the Statement on Schedule 13D (as amended by Amendment No. 1, dated May 14, 1998, Amendment No. 2, dated August 18, 2000, Amendment No. 3, dated December 8, 2000, Amendment No. 4, dated March 30, 2001, Amendment No. 5, dated August 31, 2001, Amendment No. 6, dated
April 1, 2002, Amendment No. 7 dated April 17, 2002, Amendment No. 8 dated May 31, 2002, Amendment No. 9 dated July 3, 2002, Amendment No. 10 dated December 3, 2002, Amendment No. 11 dated April 25, 2003, Amendment No. 12 dated October 2, 2003, Amendment No. 13 dated January 26, 2004, Amendment No. 14 dated February 2, 2004, Amendment No. 15 dated September 12, 2005, Amendment No. 16 dated December 27, 2005, Amendment No. 17, dated May 16, 2006, Amendment No. 18 dated October 18, 2007, Amendment No. 19 dated
April 9, 2008, Amendment No. 20 dated November 19, 2008, Amendment No. 21 dated January 7, 2009, Amendment No. 22 dated April 20, 2009, and Amendment No. 23 dated July 2, 2009 (the “Statement”)) relating to the common shares, no par value (the “Shares”), of BioTime Inc., a California corporation (the “Company”), and is filed by and on behalf of Greenbelt Corp. (“Greenbelt”), Greenway Partners, L.P. (“Greenway”), Greenhouse Partners, L.P. (“Greenhouse”),
Alfred D. Kingsley and Gary K. Duberstein (collectively, the “Reporting Persons”). Unless otherwise defined herein, all capitalized terms used herein shall have the meanings previously ascribed to them in the previous filing of the Statement.