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

February 6, 2013

Date of Report (Date of Earliest Event Reported)

PACWEST BANCORP

(Exact Name of Registrant as Specified in Charter)

10250 Constellation Blvd., Suite 1640

Los Angeles, California 90067

(Address of Principal Executive Offices)(Zip Code)

(310) 286-1144

(Registrant’s Telephone Number, including Area Code)

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 (see General Instruction A.2. below):

x          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(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01                                           Other Events

Matthew P. Wagner, chief executive officer of PacWest Bancorp, and Victor R. Santoro, executive vice president and chief financial officer of PacWest Bancorp, will make presentations to current and potential investors at the FIG Partners West Coast Bank CEO Forum in San Francisco, California on February 7, 2013.  A copy of the presentation materials is attached as Exhibit 99.1 of this Form 8-K.  The presentation will also be available on PacWest’s website at www.pacwestbancorp.com under the section entitled “Presentations”.

Item 9.01              Financial Statements and Exhibits.

(d)  Exhibits.

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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 hereunto duly authorized.

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