X0306 4 2016-03-18 0 0001375557 Guidance Software, Inc. GUID 0001091426 PLAGA BARRY J C/O GUIDANCE SOFTWARE, INC. 1055 COLORADO BLVD. PASADENA CA 91106 0 1 0 0 CFO and COO Common Stock 2016-03-18 4 A 0 200023 0 A 410997 D Effective March 18, 2016, the Board of Directors of the Company granted Mr. Plaga Restricted Stock Awards representing 200,023 shares of Common Stock and, provided Mr. Plaga remains an employee of the Company on the following dates, such shares shall vest as follows: 25% shall vest on March 18, 2017, 25% shall vest on March 18, 2018, 25% shall vest on March 18, 2019, and the final 25% shall vest on March 18, 2020. /s/ Joel B. Ginsberg, Attorney in Fact 2016-03-22