James Brian Lally - 24 Feb 2026 Form 4 Insider Report for ENTERPRISE FINANCIAL SERVICES CORP (EFSC)

Role: CEO, Director
Signature: /s/James Brian Lally
Issuer symbol: EFSC
Transactions as of: 24 Feb 2026
Net transactions value: -$201,610
Form type: 4
Filing time: 26 Feb 2026, 13:14:09 UTC
Previous filing: 12 Feb 2026
Next filing: 06 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
LALLY JAMES BRIAN	CEO, Director	150 N. MERAMEC, CLAYTON	/s/James Brian Lally	26 Feb 2026	0001674404

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	EFSC	Common Stock	Options Exercise	$0	+7,982	+7.2%	$0.000000	119,198	24 Feb 2026	Direct
transaction	EFSC	Common Stock	Tax liability	$201,610	-3,502	-2.9%	$57.57	115,696	24 Feb 2026	Direct	F1
holding	EFSC	Common Stock						19,570	24 Feb 2026	401 (K) Plan	F2
holding	EFSC	Common Stock						4,107	24 Feb 2026	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	EFSC	Restricted Share Units	Options Exercise	$0	-7,982	-50%	$0.000000	7,982	24 Feb 2026	Common Stock	7,982		Direct	F6, F9
holding	EFSC	Non Qualified Stock Option (Right to Buy)						17,637	24 Feb 2026	Common Stock	17,637	$43.81	Direct
holding	EFSC	Non Qualified Stock Option (Right to Buy)						20,325	24 Feb 2026	Common Stock	20,325	$48.34	Direct
holding	EFSC	Non Qualified Stock Option (Right to Buy)						20,438	24 Feb 2026	Common Stock	20,438	$54.46	Direct
holding	EFSC	Non Qualified Stock Option (Right to Buy)						30,661	24 Feb 2026	Common Stock	30,661	$39.50	Direct	F4
holding	EFSC	Non Qualified Stock Option (Right to Buy)						16,144	24 Feb 2026	Common Stock	16,144	$57.17	Direct	F5
holding	EFSC	Restricted Share Units						5,857	24 Feb 2026	Common Stock	5,857		Direct	F6, F7
holding	EFSC	Restricted Share Units						5,398	24 Feb 2026	Common Stock	5,398		Direct	F6, F8

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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	These shares are held jointly with spouse.
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.