X0306 4 2016-01-05 0001025835 ENTERPRISE FINANCIAL SERVICES CORP EFSC 0001203646 GUEST ROBERT E JR 150 N. MERAMEC ST. LOUIS MO 63105 1 Common Stock 2016-01-05 5 G 0 E 450 0 A 33785 I Children Trust Common Stock 2016-01-05 5 G 0 E 450 0 A 73077 D Common Stock 3170 D Common Stock 8220 I Spouse Ira Price is not applicable to acquisitions or dispositions resulting from bona fide gifts. These shares are held jointly with spouse. /s/ Robert E. Guest 2016-02-16