Edgar Filing: SEI INVESTMENTS CO

SEI INVESTMENTS COMPANY

Date: November 1, 2010

/s/ Dennis J. McGonigle

Dennis J. McGonigle

Chief Financial Officer

Form 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

November 1, 2010

Date of report (Date of earliest event reported)

SEI Investments Company

(Exact name of registrant as specified in its charter)

Pennsylvania

0-10200

23-1707341

(State or other jurisdiction

of incorporation)

(Commission

File No.)

(I.R.S. Employer

Identification No.)

1 Freedom Valley Drive

Oaks, Pennsylvania 19456

(Address of principal executive offices) (Zip Code)

(610) 676-1000

(Registrants’ telephone number, including area code)

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:

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

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

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

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

Item 8.01.

Other Events.

M&T Bank Corporation (“M&T”) and Wilmington Trust Corporation (“Wilmington Trust”) announced jointly on November 1, 2010 that they have entered into a definitive agreement under which Wilmington Trust will merge with M&T. SEI Investments Company announced in June 2010 that it had entered into a long-term agreement with Wilmington Trust to provide core processing and accounting systems for the Wilmington Trust’s advisory businesses. M&T is also a client of long-standing with SEI Investments for SEI’s core processing and accounting systems and other solutions.

SIGNATURES

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 hereunto duly authorized.