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): November 3, 2016

Main Street Capital Corporation

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (713) 350-6000

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

Item 8.01                                           Other Events.

On November 3, 2016, the Registrant issued a press release. A copy of such press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information disclosed herein, including Exhibit 99.1 hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 and shall not be deemed incorporated by reference into any filing made under the Securities Act of 1933, except as expressly set forth by specific reference in such filing.

Item 9.01                                           Financial Statements and Exhibits.

(d) Exhibits

99.1                                    Press release dated November 3, 2016

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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.

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Exhibit Index

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Exhibit 99.1

Main Street Announces First Quarter 2017 Regular Monthly Dividends

Regular Monthly Dividends of $0.185 per Share for each of January, February and March 2017 Represent a 3% Increase Compared to First Quarter of 2016

HOUSTON, November 3, 2016 — Main Street Capital Corporation (NYSE: MAIN) (“Main Street”) is pleased to announce that its Board of Directors declared regular monthly cash dividends of $0.185 per share for each of January, February and March 2017.  These monthly dividends, which will be payable pursuant to the table below, total $0.555 per share for the first quarter of 2017, which is consistent with the regular monthly dividends declared for the fourth quarter of 2016 and represents a 3% increase from the regular monthly dividends paid for the first quarter of 2016.  Since its October 2007 initial public offering, Main Street has periodically increased the amount of its regular monthly dividends paid per share, and has never reduced its regular monthly dividend amount per share.  Including all dividends declared to date, Main Street will have paid $19.16 per share in cumulative cash dividends since its October 2007 initial public offering at $15.00 per share.

Summary of First Quarter 2017 Regular Monthly Dividends

The final determination of the tax attributes for dividends each year are made after the close of the tax year.  The final tax attributes for 2016 and 2017 dividends are currently expected to include ordinary taxable income, capital gains and qualified dividends.

Main Street maintains a dividend reinvestment plan (“DRIP”) that provides for the reinvestment of dividends on behalf of its registered stockholders who hold their shares with Main Street’s transfer agent and registrar, American Stock Transfer and Trust Company, or certain brokerage firms that have elected to participate in Main Street’s DRIP.  Under the DRIP, if Main Street declares a dividend, registered stockholders (or stockholders holding shares through participating brokerage firms) who have not “opted out” of the DRIP by the dividend record date will have their dividend automatically reinvested into additional shares of Main Street common stock.

ABOUT MAIN STREET CAPITAL CORPORATION

Main Street (www.mainstcapital.com) is a principal investment firm that provides long-term debt and equity capital to lower middle market companies and debt capital to middle market companies.  Main Street’s portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors.  Main Street seeks to partner with entrepreneurs, business owners and management teams and generally provides “one stop” financing alternatives within its lower middle market portfolio.  Main Street’s lower middle market companies generally have annual revenues between $10 million and $150 million.  Main Street’s middle market debt investments are made in businesses that are generally larger in size than its lower middle market portfolio companies.

Main Street’s common stock trades on the New York Stock Exchange (“NYSE”) under the symbol “MAIN.”  In addition, Main Street has outstanding 6.125% Notes due 2023, which trade on the NYSE under the symbol “MSCA.”

FORWARD-LOOKING STATEMENTS

This press release may contain certain forward-looking statements, including but not limited to the potential tax attributes for 2016 and 2017 dividends.  Any such statements other than statements of historical fact are likely to be affected by other unknowable future events and

conditions, including elements of the future that are or are not under Main Street’s control, and that Main Street may or may not have considered; accordingly, such statements cannot be guarantees or assurances of any aspect of future performance.  Actual performance and results could vary materially from these estimates and projections of the future.  Such statements speak only as of the time when made and are based on information available to Main Street as of the date hereof and are qualified in their entirety by this cautionary statement.  Main Street assumes no obligation to revise or update any such statement now or in the future.

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