ENTERPRISE FINANCIAL SERVICES CORP — Director's Dealing 2017

May 4, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTERPRISE FINANCIAL SERVICES CORP (EFSC)
CIK: 0001025835
Period of Report: 2017-05-02

Reporting Person: BENOIST PETER (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-02	Common Stock	S	10621	$41.96	Disposed	202342	Indirect
2017-05-02	Common Stock	M	280	—	Acquired	3027	Direct
2017-05-02	Common Stock	F	94	$42.20	Disposed	2933	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-02	Restricted Share Units	$	M	280	Disposed		Common Stock (280)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1184	Indirect
Common Stock	24272	Indirect

Footnotes

F1: This transaction is pursuant to a 10b5-1 plan.

F2: The reporting person holds units in the stock fund and the number of 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.

F3: 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.

F4: Vesting of RSUs was accelerated due to retirement of reporting person.