X0306 4 2014-08-07 0 0001352010 EPAM Systems, Inc. EPAM 0001591069 Conte Anthony J C/O EPAM SYSTEMS, INC. 41 UNIVERSITY DR. SUITE 202 NEWTOWN PA 18940 0 1 0 0 VP, CFO, Treasurer Common Stock 2014-08-07 4 M 0 5000 16.8 A 9000 D Common Stock 2014-08-07 4 S 0 5000 40.82 D 4000 D Employee Stock Option (right to buy) 16.8 2014-08-07 4 M 0 5000 0 D 2022-03-19 Common Stock 5000 50000 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.68 to $40.99, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. The option, representing a right to purchase a total of 80,000 shares, became exercisable as to 25% of the shares on each of March 19, 2013 and 2014 and will become exercisable as to 25% of the shares on each of March 19, 2015 and 2016. /s/ Ginger Mosier, as Attorney-in-Fact 2014-08-11