UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.    )

Filed by the Registrant  x                            Filed by a Party other than the Registrant  ¨

Check the appropriate box:

¨ Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material under §240.14a-12

UNION FIRST MARKET BANKSHARES CORPORATION

(Name of registrant as specified in its charter)

(Name of person(s) filing proxy statement, if other than the registrant)

Payment of Filing Fee (Check the appropriate box):

x No fee required.

¨ Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

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(2) Aggregate number of securities to which the transaction applies:

(3) Per unit price or other underlying value of the transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

(4) Proposed maximum aggregate value of the transaction:

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¨ Fee paid previously with preliminary materials.

¨ Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

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1st Notice

Union First Market Bankshares Corporation

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held at 4:00 p.m., April 26, 2011.

As part of our efforts to cut unnecessary expenses and conserve the environment, Union First Market Bankshares Corporation has elected to provide Internet access to the 2012 annual meeting proxy statement and 2011 annual report rather than mailing paper copies. This reduces postage and printing expenses and paper waste. The proxy statement and annual report are available at: http://www.cfpproxy.com/3481.

The annual shareholders meeting will be held at 4:00 p.m. on April 24, 2012, at our Operations Center, 24010 Partnership Boulevard, Ruther Glen, Virginia 22546. The matters to be covered are noted below:

1. Elect four (4) directors to serve as Class I directors until the 2015 Annual Meeting:

 Douglas E. Caton, David J. Fairchild, R. Hunter Morin, Ronald L. Tillott

2. Ratify the appointment of Yount, Hyde & Barbour, P. C. as the Company’s independent registered public accounting firm for 2012.

3. An advisory (non-binding) vote on executive compensation.

4. To transact such other business as may properly come before the meeting or any adjournments or postponements thereof.

The Board of Directors is not aware of any other such business. Shareholders of record of our common stock at the close of business on February 29, 2012 are entitled to vote at the annual meeting.

The Board of Directors recommends a vote FOR all the listed nominees in Proposals 1 and FOR Proposals 2, and 3.

This communication is not a form for voting and presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting.

Shortly, you will receive a proxy card that will reflect the proposals to be voted on at the annual meeting and instructions on the methods of voting. You may vote by mail, by Internet, by telephone, or in person. If you wish to vote by Internet or by phone, you will need your Shareholder Control Number that can be found on the bottom right hand corner of this notice. No other personal information will be required in order to vote in this manner.

If you want to receive a paper copy of these documents, you must request one. There is no charge to you for requesting a copy. Please make your request for these materials by April 13, 2012 to facilitate timely delivery. You will need your Shareholder Control Number that can be found in the lower right hand corner of this letter. Then, either:

• Call our toll-free number, (800) 951-2405; or

• Visit our website at http://www.cfpproxv.com/3481; or

• Send us an email at fulfillment@rtco.com.

and enter the Shareholder Control Number when prompted or, if you send us an email, enter it in the subject line. Directions to the meeting are included in the Notice of Annual Meeting of Shareholders that is included with the proxy statement.

We ask that you cast your vote promptly. Due to new regulatory changes that will affect your vote on the election of directors, you must vote your proxy for your shares to be represented and voted for the election of directors. Please help save the company additional solicitation costs by voting today.

Thank you for your continued support!