X0306 4 2017-08-01 0 0001023313 FORRESTER RESEARCH, INC. FORR 0001674304 Brothers Mack C/O FORRESTER RESEARCH, INC. 60 ACORN PARK DRIVE CAMBRIDGE MA 02140 0 1 0 0 Chief Consulting Officer Common Stock 2017-08-01 4 A 0 9014 0.00 A 13865 D The securities awarded on August 1, 2017 are in the form of Restricted Stock Units issued pursuant to the Forrester Research, Inc. Amended and Restated Equity Incentive Plan that entitle the reporting person, upon vesting, to receive one share of common stock per Restricted Stock Unit. The Restricted Stock Units will vest and convert into common stock in four equal installments on the first, second, third and fourth anniversaries of the grant date. Maite Garcia, attorney-in-fact for Mack Brothers 2017-08-03