X0306 5 2018-08-31 1 0 0 0001013237 FACTSET RESEARCH SYSTEMS INC FDS 0001472650 Nicolelli Maurizio C/O FACTSET RESEARCH SYSTEMS INC. 601 MERRITT 7 NORWALK CT 06851 1 Former Chief Financial Officer Common Stock 2018-02-28 5 J 0 43 171.23 A 3497 D Common Stock 2018-05-31 5 J 0 48 170.86 A 3545 D Common Stock 2018-08-31 5 J 0 32 173.34 A 3577 D The shares shown as being acquired were acquired under the FactSet Research Systems Inc. Employee Stock Purchase Plan, an Internal Revenue Code Section 423 stock purchase plan, in transactions exempt under Rule 16b-3(c). Mr. Nicolelli ceased to be Chief Financial Officer on August 31, 2018 and ceased to be a Section 16 officer on that date. /s/ Maurizio Nicolelli 2018-10-15