UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

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 Pursuant to §240.14a-12

(Name of Registrant as Specified In Its Charter)

MVC CAPITAL, INC.

(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)(4) and 0-11.

1) Title of each class of securities to which transaction applies:

2) Aggregate number of securities to which transaction applies:

3) Per unit price or other underlying value of 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 transaction:

5) Total fee paid:

¨ 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.

1) Amount Previously Paid:

2) Form, Schedule or Registration Statement No.:

3) Filing Party:

4) Date Filed:

SEC 1913 (04-04) Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on April 29, 2014 MVC CAPITAL, INC. BROKER LOGO HERE Return Address Line 1 Return Address Line 2 Return Address Line 3 51 MERCEDES WAY EDGEWOOD NY 11717 Investor Address Line 1 Investor Address Line 2 Investor Address Line 3 Investor Address Line 4 Investor Address Line 5 John Sample 1234 ANYWHERE STREET ANY CITY, ON A1A 1A1 Meeting Information Meeting Type: Annual Meeting For holders as of: March 03, 2014 Date: April 29, 2014 Time: 1:30 PM EDT Location: Offices of Kramer Levin Naftalis & Frankel LLP 1177 Avenue of the Americas New York, NY 10036 Directions: 914-510-9400 You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. BARCODE Broadridge Internal Use Only Job # Envelope # Sequence # # of # Sequence #

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: 1. Annual Report 2. Notice & Proxy Statement How to View Online: Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow XXXX XXXX XXXX (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 17, 2014 to facilitate timely delivery. How To Vote Please Choose One of the Following Voting Methods Vote In Person: If you choose to vote these shares in person at the meeting, you must request a “legal proxy.” To do so, please follow the instructions at www.proxyvote.com or request a paper copy of the materials, which will contain the appropriate instructions. Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow? XXXX XXXX XXXX available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a voting instruction form. Internal Use Only

Voting items The Board of Directors recommends that you vote FOR the following: 1. Election of Directors Nominees 01 Emilio Dominianni 02 Phillip Goldstein 03 Gerald Hellerman 04 Warren Holtsberg 05 Robert Knapp 06 William Taylor 07 Michael Tokarz The Board of Directors recommends you vote FOR the following proposal(s): 2 To ratify the selection of Ernst & Young LLP as the Fund’s independent registered public accounting firm for fiscal year 2014. NOTE: In their discretion, the Proxies are authorized to vote upon such other business as may properly come before the meeting or any adjournment thereof. 0000 0000 0000 0000194539_3 R1.0.0.51160 B A R C O D E Broadridge Internal Use Only xxxxxxxxxx xxxxxxxxxx Cusip Job # Envelope # Sequence # # of # Sequence #

Reserved for Broadridge Internal Control Information Voting Instructions THIS SPACE RESERVED FOR LANGUAGE PERTAINING TO 51160 BANKS AND BROKERS . AS REQUIRED BY THE NEW YORK STOCK EXCHANGE 00R14 0000194539 Broadridge Internal Use Only P99999-010 12 Job # THIS SPACE RESERVED FOR SIGNATURES IF APPLICABLE Envelope # Sequence 15 # # of # Sequence # OF##