8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)
August 27, 2007

ENTERPRISE FINANCIAL SERVICES
CORP
(Exact name of registrant as specified in its charter)

Delaware	001-15373	43-1706259
(State or Other Jurisdiction	(Commission	(IRS Employer
of Incorporation)	File Number)	Identification No.)

150 N. Meramec, St. Louis, Missouri	63105
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code
(314) 725-5500

Not applicable

(Former name or former address, if changed since last report) 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4© under the Exchange Act (17 CFR 240.13e-4(c))

ITEM 8.01 OTHER EVENTS

On August 27, 2007, Registrant issued a press release announcing a stock buyback of up to 5% of the Company’s 12.5 million outstanding common shares. The press release is attached hereto as Exhibit 99.1 and is furnished to, but not filed with, the Commission.

ITEM 9.01 Financial Statements and Exhibits

(c) Exhibits

Exhibit No.	Description
99.1	Press Release dated August 27, 2007

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.

Date: August 27, 2007

ENTERPRISE FINANCIAL SERVICES CORP 

/s/ Kevin C. Eichner 

---------------------------------------------------------- 

Kevin C. Eichner 

Chief Executive Officer 

INDEX TO EXHIBITS

Exhibit No.	Description
---------------	----------------
99.1	Press Release dated August 27, 2007*

*This exhibit is furnished to, but not filed with, the Commission by inclusion herein.

EX-99.1

Exhibit 99.1

For more information contact:
Kevin Eichner or Frank Sanfilippo (314) 725 5500
Melissa Sturges (816) 221 7500 or Ann Marie Mayuga (314) 469 4798

ENTERPRISE FINANCIAL ANNOUNCES NEW STOCK BUYBACK PROGRAM 

St. Louis, August 27, 2007. Enterprise Financial Services Corp (NASDAQ: EFSC) announced today that its Board of Directors has authorized a stock buyback of up to 5% of the Company’s 12.5 million outstanding common shares. Under this authorization, shares of common stock may be purchased from time-to-time in the open market or in privately negotiated transactions. The new authorization replaces the previous buyback program approved in 2004.

Commenting on the buyback authorization, Kevin Eichner, President and CEO, said, “This authorization, similar to the repurchase program it replaces, ensures that we have the flexibility to continually deploy our capital to create the greatest returns for Enterprise shareholders.”

Enterprise Financial operates commercial banking and wealth management businesses mostly in metropolitan St. Louis and Kansas City, with a primary focus on serving the needs of privately held businesses, their owners and other success-minded individuals.

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