X0202 4 2008-06-10 0001025835 ENTERPRISE FINANCIAL SERVICES CORP EFSC 0001186811 LEUCK RICHARD C 150 N. MERAMEC ST. LOUIS MO 63105 0 1 0 0 Regional President Common Stock 9362 D COMMON STOCK 9101 I EBSP III, LLC COMMON STOCK 3000 I JT/W SPOUSE COMMON STOCK 7500 I SPOUSE TRUST COMMON STOCK 35048 I BY TRUST COMMON STOCK 7000 I SELF IRA Common Stock 1693 I 401 (k) Plan INCENTIVE STOCK OPTION (RIGHT TO BUY) 10.00 2002-08-28 2012-08-28 COMMON STOCK 8000 8000 D INCENTIVE STOCK OPTION (RIGHT TO BUY) 11.75 2001-07-01 2011-07-01 COMMON STOCK 8000 8000 D INCENTIVE STOCK OPTION (RIGHT TO BUY) 13.40 2003-05-13 2013-05-13 COMMON STOCK 12500 12500 D INCENTIVE STOCK OPTION (RIGHT TO BUY) 15.00 2000-09-01 2010-09-01 COMMON STOCK 7000 7000 D Restricted Share Units 2008-06-10 4 A 0 4598 A Common Stock 4598 11662 D The reporting person hold units in the stock fund and the shares reported as indirectly held in the 401 (k) plan in this row is an estimate of the number of shares of the issuer's Common Stock held in the unitized stock fund and allocated to the reporting person's account as of 5/31/08. Each RSU represents the right to recieve one share of Common Stock, subject to adjustment as provided in the Grant Agreement. The RSUs vest at a rate of 20% annually over five years, subject to continued employment of the reporting person. Vesting occurs on December 15 of each year, commencing in the calendar year of the grant. On each vesting date, for each RSU vesting on such date, the reporting person will receive one share of Common Stock. The RSUs were granted pursuant to the Company's 2002 Stock Incentive Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Grant Agreement. Richard C. Leuck 2008-06-11