X0202 5 2005-12-31 0 0 0 0000876343 BIOTIME INC BTIM 0001202529 WEST MICHAEL D 1201 HARBOR BAY PARKWAY SUITE 120 ALAMEDA CA 94502 1 0 0 0 Common Shares, no par value 78332 D Option to Purchase Common Shares 1.00 2002-10-28 2007-10-27 Common Shares 15000 15000 D Option to Purchase Common Shares 1.00 2002-11-30 2007-10-27 Common Shares 1666 1666 D Option to Purchase Common Shares 1.00 2002-12-31 2007-10-27 Common Shares 1666 1666 D Option to Purchase Common Shares 1.55 2008-03-30 Common Shares 20000 20000 D Option to Purchase Common Shares 2.17 2009-03-07 Common Shares 20000 20000 D Option to Purchase Common Shares 1.26 2010-03-30 Common Shares 20000 20000 D Includes 78,332 shares that Dr. West may aquire through the exercise of stock options. 5,000 options became exercisable on March 31, 2003 and the remaining 15,000 became exercisable in 9 equal monthly installments based upon continued service on the board of directors. 5,000 options became exercisable on March 31, 2004 and the remaining 15,000 became exercisable in 3 equal quarterly installments based upon continued service on the board of directors. 5,000 options became exercisable on March 31, 2005 and the remaining 15,000 became exercisable in 3 equal quarterly installments based upon continued service on the board of directors. /s/ Michael D. West 2006-02-14