ENTERPRISE FINANCIAL SERVICES CORP — Director's Dealing 2026

Feb 26, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ENTERPRISE FINANCIAL SERVICES CORP (EFSC)
CIK: 0001025835
Period of Report: 2026-02-24

Reporting Person: KEENE S TURNER (SEVP, Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-24	Common Stock	M	4989	—	Acquired	66488	Direct
2026-02-24	Common Stock	F	2169	$57.57	Disposed	64319	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-24	Restricted Share Units	$	M	4989	Disposed		Common Stock (4989)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1683	Indirect
Depository Shares	2000	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non Qualified Stock Option (Right to Buy)	$43.81	2031-02-25	Common Stock (9042)	9042	Direct
Non Qualified Stock Option (Right to Buy)	$48.34	2032-02-24	Common Stock (9934)	9934	Direct
Non Qualified Stock Option (Right to Buy)	$54.46	2033-02-28	Common Stock (9610)	9610	Direct
Non Qualified Stock Option (Right to Buy)	$39.50	2034-02-28	Common Stock (15163)	15163	Direct
Non Qualified Stock Option (Right to Buy)	$57.17	2035-03-04	Common Stock (7984)	7984	Direct
Restricted Share Units	$		Common Stock (2897)	2897	Direct
Restricted Share Units	$		Common Stock (2670)	2670	Direct

Footnotes

F1: Withholding of stock to satisfy tax withholding obligation on issuance of common stock.

F2: These securities are represented by units held in a unitized stock fund through the Company's 401(k) Plan. The unitized stock fund consists of cash and common stock in amounts that vary from time to time.

F3: Each Depositary Share represents a 1/40th interest in a share of the Issuer's 5.00% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock. Depositary Shares were purchased in an underwritten public offering.

F4: This option becomes exercisable in the first quarter of 2027, subject to continued employment by the reporting person.

F5: The option becomes exercisable in the first quarter of 2028, subject to continued employment by the reporting person.

F6: The RSU's were granted pursuant to the Company's 2018 Stock Incentive Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Grant Agreement.

F7: The RSU's vest 100% in the first quarter of 2027, subject to continued employment by the reporting person.

F8: The RSU's vest 100% in the first quarter of 2028, subject to continued employment by the reporting person.

F9: The RSUs vest over six years in one-third installments on each of February 24, 2024, February 24, 2026, and February 24, 2028. Vesting is subject to continued employment of the reporting person. On each vesting date, for each RSU vesting on such date, the reporting person will receive one share of Common Stock.