X0206 3 2013-11-08 0 0001352010 EPAM Systems, Inc. EPAM 0001591069 Conte Anthony J C/O EPAM SYSTEMS, INC. 41 UNIVERSITY DRIVE, SUITE 202 NEWTOWN PA 18940 0 1 0 0 VP, CFO & Treasurer No securities are beneficially owned 0 D Employee Stock Option (right to buy) 6.875 2020-12-17 Common Stock 40000 D Employee Stock Option (right to buy) 16.80 2022-03-19 Common Stock 65000 D Employee Stock Option (right to buy) 23.04 2023-05-24 Common Stock 13000 D The option, representing a right to purchase a total of 80,000 shares, became exercisable as to 25% of the shares on each of December 13, 2011 and 2012 and will become exercisable as to 25% of the shares on each of December 13, 2013 and 2014. The option, representing a right to purchase a total of 80,000 shares, became exercisable as to 25% of the shares on March 19, 2013 and will become exercisable as to 25% of the shares on each of March 19, 2014, 2015 and 2016. The option will become exercisable as to 25% of the shares on each of March 19, 2014, 2015, 2016 and 2017. /s/ Ginger Mosier, as Attorney-in-Fact 2013-11-13