. gore has the right to acquire by exercise of stock options . ( 9 ) includes 1900000 shares of common stock that mr . johnson has the right to acquire by exercise of stock options and excludes 450000 unvested restricted stock units . ( 10 ) includes 2000 shares of common stock that dr . levinson holds indirectly and 100000 shares of common stock that dr . levinson has the right to acquire by exercise of stock options . ( 11 ) excludes 450000 unvested restricted stock units