X0305 4 2012-05-10 0 0001411861 MAKO Surgical Corp. MAKO 0001385015 Dewey Christopher C BOX 23 173 LAMINGTON ROAD OLDWICK NJ 08858 1 0 0 0 Common Stock 2012-05-10 4 D 0 21500 24.9935 D 751722 D Common Stock 2012-05-10 4 X 0 60000 2.9997 A 811722 D Common Stock 2012-05-10 4 F 0 4382 41.08 D 807340 D Common Stock 2012-05-11 4 D 0 44224 24.1791 D 763116 D Common Stock Warrants (right to buy) 2.9997 2012-05-10 4 X 0 60000 0.03 D 2004-12-17 2014-12-17 Common Stock 60000 51182 D The price in column 4 is a weighted average price per share. The prices actually paid ranged from $24.96 to $25.00 per share. For all transactions reported in this Form 4 utilizing a weighted average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range. The price in column 4 is a weighted average price per share. The prices actually paid ranged from $24.11 to $24.28 per share. For all transactions reported in this Form 4 utilizing a weighted average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range. /s/ Menashe R. Frank, attorney in fact 2012-05-11