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Main Street Capital

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TABLE OF CONTENTS 
Item 8. Consolidated Financial Statements and Supplementary Data 
PART IV

Table of Contents

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 10-K

(Mark One) 

þ   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

  For the fiscal year ended December 31, 2019

OR

o   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

  For the transition period from               to               

Commission File Number: 001-33723

Main Street Capital Corporation

(Exact name of registrant as specified in its charter)

Maryland
(State or other jurisdiction
of incorporation or organization)

1300 Post Oak Boulevard,
8th Floor
Houston, TX
(Address of principal executive offices)

41-2230745
(I.R.S. Employer
Identification No.)

77056
(Zip Code)

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

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class
Common Stock, par value $0.01 per share  

Trading Symbol
MAIN

Name of Each Exchange on Which
Registered
New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

        Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes þ    No o

        Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes o    No þ

        Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the
preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past
90 days.    Yes þ    No o

        Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T
during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes o    No o

        Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company or an emerging growth
company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer þ

Accelerated filer o  

Non-accelerated filer o

Smaller reporting company o
Emerging growth company o

        If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised
financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

        Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes o    No þ

 
 
 
 
 
 
 
 
 
 
        The aggregate market value of the registrant's common stock held by non-affiliates of the registrant as of June 30, 2019, was approximately $2,447.8 million based upon
the last sale price for the registrant's common stock on that date.

        The number of outstanding common shares of the registrant as of February 26, 2020 was 64,401,340.

DOCUMENTS INCORPORATED BY REFERENCE

        Portions of the registrants' definitive Proxy Statement for its 2020 Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission, are
incorporated by reference in this Annual Report on Form 10-K in response to Part III.

Table of Contents

  Business

Item 1.
Item 1A.   Risk Factors
Item 1B.   Unresolved Staff Comments
Item 2.
Item 3.
Item 4.

  Properties
  Legal Proceedings
  Mine Safety Disclosures

TABLE OF CONTENTS 

PART I

PART II

  Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
  Selected Financial Data
  Management's Discussion and Analysis of Financial Condition and Results of Operations

Item 5.
Item 6.
Item 7.
Item 7A.   Quantitative and Qualitative Disclosures About Market Risk
  Consolidated Financial Statements and Supplementary Data
Item 8.
Item 9.
  Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Item 9A.   Controls and Procedures
Item 9B.   Other Information

Item 10.
Item 11.
Item 12.
Item 13.

  Directors, Executive Officers and Corporate Governance
  Executive Compensation
  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
  Certain Relationships and Related Transactions, and Director Independence

PART III

Item 14.

  Principal Accountant Fees and Services

Item 15.
Signatures

  Exhibits and Consolidated Financial Statement Schedules

PART IV

  Page

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49
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77
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CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS 

       This Annual Report on Form 10-K contains forward-looking statements regarding the plans and objectives of management for future operations. Any such forward-looking
statements may involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different
from future results, performance or achievements expressed or implied by any forward-looking statements. Forward-looking statements, which involve assumptions and
describe our future plans, strategies and expectations, are generally identifiable by use of the words "may," "will," "should," "expect," "anticipate," "estimate," "believe,"
"intend" or "project" or the negative of these words or other variations on these words or comparable terminology. These forward-looking statements are based on assumptions
that may be incorrect, and we cannot assure you that the projections included in these forward-looking statements will come to pass. Our actual results could differ materially
from those expressed or implied by the forward-looking statements as a result of various factors, including the factors discussed in Item 1A entitled "Risk Factors" in Part I of
this Annual Report on Form 10-K and elsewhere in this Annual Report on Form 10-K. Other factors that could cause actual results to differ materially include changes in the
economy and future changes in laws or regulations and conditions in our operating areas.

       We have based the forward-looking statements included in this Annual Report on Form 10-K on information available to us on the date of this Annual Report on Form 10-
K, and we assume no obligation to update any such forward-looking statements, unless we are required to do so by applicable law. However, you are advised to refer to any
additional disclosures that we may make directly to you or through reports that we in the future may file with the Securities and Exchange Commission ("SEC"), including
subsequent annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

    Item 1.    Business 

ORGANIZATION

PART I 

       Main Street Capital Corporation ("MSCC") is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market
("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made
to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to
partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its
consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in
secured debt investments of Middle Market companies generally headquartered in the United States.

       MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended
(the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street
Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business
Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and other
employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with
employing investment and portfolio management professionals.

       MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and
other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receives fee income for such services. MSCC has been
granted no-action relief by the SEC to allow the External Investment Manager to

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register as a registered investment adviser under the Investment Advisers Act of 1940, as amended (the "Advisers Act"). Since the External Investment Manager conducts all of
its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in
MSCC's consolidated financial statements.

       MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of
1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it
distributes to its stockholders.

       MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable
Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes.

       Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries,
which include the Funds and the Taxable Subsidiaries.

       The following diagram depicts our organizational structure:

*

**

Other Holding Companies includes the Taxable Subsidiaries and other entities formed for operational purposes. Each of these companies is directly or indirectly wholly
owned by MSCC. 

The External Investment Manager is accounted for as a portfolio investment at fair value, as opposed to a consolidated subsidiary, and is indirectly wholly owned by
MSCC.

CORPORATE INFORMATION

       Our principal executive offices are located at 1300 Post Oak Boulevard, 8th Floor, Houston, Texas 77056. We maintain a Web site on the Internet at
www.mainstcapital.com. We make available free of charge on our Web site our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and
all amendments to those reports as soon as reasonably practicable after such material is electronically filed with or furnished to the SEC. Information contained on our Web site
is not incorporated by reference into this Annual Report on Form 10-K, and you should not consider that information to be part of this Annual Report on Form 10-K. Our
annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports and other public filings are also available free
of charge on the EDGAR Database on the SEC's Web site at www.sec.gov.

OVERVIEW OF OUR BUSINESS

       Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our
equity and equity-related investments,

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including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between
$10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle Market investments are made in
businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market
investments generally range in size from $3 million to $20 million. Our private loan ("Private Loan") portfolio investments are primarily debt securities in privately held
companies which have been originated through strategic relationships with other investment funds on a collaborative basis. Private Loan investments are typically similar in
size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

       We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The
underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity
participations. Our ability to invest across a company's capital structure, from secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of
financing options, or a "one stop" financing solution. Providing customized, "one stop" financing solutions is important to LMM portfolio companies. We generally seek to
partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first
lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies
that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or
second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other
investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and
conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or
second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market or
Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in
connection with investments managed by third parties, such as investments in other investment companies or private funds.

       Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the
assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement
with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income
Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships,
management expertise and capital raising capabilities.

       Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are
subject to different regulatory regimes (see "Regulation"). An investor's return in MSCC will depend, in part, on the Funds' investment returns as they are wholly owned
subsidiaries of MSCC.

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       The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new
investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated
interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt
investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our
growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position
based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will
also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and
unrealized appreciation or depreciation could have a material impact on our operating results.

       Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing
investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared
to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-
interest operating expenses as we grow our Investment Portfolio (as defined below).

       During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a
non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own
a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise
have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory
agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with
HMS Income.

       During April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where co-investing
would otherwise be prohibited under the 1940 Act. We have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the
conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate
for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. Because the External Investment Manager may
receive performance-based fee compensation from HMS Income, this may provide it an incentive to allocate opportunities to HMS Income instead of us. However, both we and
the External Investment Manager have policies and procedures in place to manage this conflict.

RECENT DEVELOPMENTS

       During February 2020, we declared regular monthly dividends of $0.205 per share for each month of April, May and June 2020. These regular monthly dividends equal a
total of $0.615 per share for the second quarter of 2020 and represent a 2.5% increase from the dividends declared for the second quarter of 2019. Including the dividends
declared for the second quarter of 2020, we will have paid $28.370 per share in cumulative dividends since our October 2007 initial public offering.

BUSINESS STRATEGIES

       Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our
equity and equity-related investments,

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including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our
investment objective:

•

•

•

•

•

•

Deliver Customized Financing Solutions in the Lower Middle Market. We offer LMM portfolio companies customized debt and equity financing
solutions that are tailored to the facts and circumstances of each situation. We believe our ability to provide a broad range of customized financing
solutions to LMM companies sets us apart from other capital providers that focus on providing a limited number of financing solutions. Our ability to
invest across a company's capital structure, from senior secured loans to subordinated debt to equity securities, allows us to offer LMM portfolio
companies a comprehensive suite of financing options, or a "one stop" financing solution. 

Focus on Established Companies. We generally invest in companies with established market positions, experienced management teams and proven
revenue streams. We believe that those companies generally possess better risk-adjusted return profiles than newer companies that are building their
management teams or are in the early stages of building a revenue base. We also believe that established companies in our targeted size range also
generally provide opportunities for capital appreciation. 

Leverage the Skills and Experience of Our Investment Team. Our investment team has significant experience in lending to and investing in LMM and
Middle Market companies. The members of our investment team have broad investment backgrounds, with prior experience at private investment funds,
investment banks and other financial services companies and currently include eight certified public accountants and three Chartered Financial
Analyst® charter holders. The expertise of our investment team in analyzing, valuing, structuring, negotiating and closing transactions should provide us
with competitive advantages by allowing us to consider customized financing solutions and non-traditional or complex structures for our portfolio
companies. Also, the reputation of our investment team has and should continue to enable us to generate additional revenue in the form of management
and incentive fees in connection with us providing advisory services to other investment funds. 

Invest Across Multiple Companies, Industries, Regions and End Markets. We seek to maintain a portfolio of investments that is appropriately balanced
among various companies, industries, geographic regions and end markets. This portfolio balance is intended to mitigate the potential effects of negative
economic events for particular companies, regions, industries and end markets. 

Capitalize on Strong Transaction Sourcing Network. Our investment team seeks to leverage its extensive network of referral sources for portfolio
company investments. We have developed a reputation in our marketplace as a responsive, efficient and reliable source of financing, which has created a
growing stream of proprietary deal flow for us. 

Benefit from Lower, Fixed, Long-Term Cost of Capital. The SBIC licenses held by the Funds have allowed them to issue SBA-guaranteed debentures.
SBA-guaranteed debentures carry long-term fixed interest rates that are generally lower than interest rates on comparable bank loans and other debt.
Because lower-cost SBA leverage is, and will continue to be, a significant part of our capital base through the Funds, our relative cost of debt capital
should be lower than many of our competitors. In addition, the SBIC leverage that we receive through the Funds represents a stable, long-term
component of our capital structure with proper matching of duration and cost compared to our LMM portfolio investments. We also maintain an
investment grade rating from Standard & Poor's Ratings Services which provides us the opportunity and flexibility to obtain additional, attractive long-
term financing options to supplement our capital structure, including the unsecured notes with fixed interest rates we issued in 2014, 2017 and 2019.

INVESTMENT CRITERIA

       Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses
these criteria in evaluating investment

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opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments:

•

•

•

•

Proven Management Team with Meaningful Equity Stake. We look for operationally-oriented management with direct industry experience and a
successful track record. In addition, we expect the management team of each LMM portfolio company to have meaningful equity ownership in the
portfolio company to better align our respective economic interests. We believe management teams with these attributes are more likely to manage the
companies in a manner that both protects our debt investment and enhances the value of our equity investment. 

Established Companies with Positive Cash Flow. We seek to invest in established companies with sound historical financial performance. We typically
focus on LMM companies that have historically generated EBITDA of $3 million to $20 million and commensurate levels of free cash flow. We also
pursue investments in debt securities of Middle Market companies that are generally established companies with sound historical financial performance
that are generally larger in size than LMM companies. We generally do not invest in start-up companies or companies with speculative business plans. 

Defensible Competitive Advantages/Favorable Industry Position. We primarily focus on companies having competitive advantages in their respective
markets and/or operating in industries with barriers to entry, which may help to protect their market position and profitability. 

Exit Alternatives. We exit our debt investments primarily through the repayment of our investment from internally generated cash flow of the portfolio
company and/or a refinancing. In addition, we seek to invest in companies whose business models and expected future cash flows may provide alternate
methods of repaying our investment, such as through a strategic acquisition by other industry participants or a recapitalization.

INVESTMENT PORTFOLIO

       The Investment Portfolio, as used herein, refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan
portfolio investments, Other Portfolio investments, and our investment in the External Investment Manager. Our LMM portfolio investments primarily consist of secured debt,
equity warrants and direct equity investments in privately held, LMM companies based in the United States. Our Middle Market portfolio investments primarily consist of direct
investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the
companies included in our LMM portfolio. Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are
consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments that we originate on a collaborative basis with other investment
funds, and are often referred to in the debt markets as "club deals." Our Other Portfolio investments primarily consist of investments that are not consistent with the typical
profiles for our LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may
incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

Debt Investments

       Historically, we have made LMM debt investments principally in the form of single tranche debt. Single tranche debt financing involves issuing one debt security that
blends the risk and return profiles of both first lien secured and subordinated debt. We believe that single tranche debt is more appropriate for many LMM companies given their
size in order to reduce structural complexity and potential conflicts among creditors.

       Our LMM debt investments generally have a term of five to seven years from the original investment date, with limited required amortization prior to maturity, and provide
for monthly or quarterly payment of

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interest at interest rates generally between 10% and 14% per annum, payable currently in cash. Interest rate terms can include either fixed or floating rate terms. In addition,
certain LMM debt investments may have a form of interest that is not paid currently but is accrued and added to the loan balance and paid at maturity. We refer to this form of
interest as payment-in-kind, or PIK, interest. We typically structure our LMM debt investments with the maximum seniority and collateral that we can reasonably obtain while
seeking to achieve our total return target. In most cases, our LMM debt investment will be collateralized by a first priority lien on substantially all the assets of the portfolio
company. In addition to seeking a senior lien position in the capital structure of our LMM portfolio companies, we seek to limit the downside potential of our LMM debt
investments by negotiating covenants that are designed to protect our LMM debt investments while affording our portfolio companies as much flexibility in managing their
businesses as is reasonable. Such restrictions may include affirmative and negative covenants, default penalties, lien protection, change of control or change of management
provisions, key-man life insurance, guarantees, equity pledges, personal guaranties, where appropriate, and put rights. In addition, we typically seek board representation or
observation rights in all of our LMM portfolio companies. Interest rate terms can include either fixed or floating rate terms.

       While we will continue to focus our LMM debt investments primarily on single tranche debt investments, we also anticipate structuring some of our debt investments as
mezzanine loans. We expect that these mezzanine loans will be primarily junior secured or unsecured, subordinated loans that provide for relatively high interest rates, payable
currently in cash, and will provide us with significant interest income. We also anticipate that these mezzanine loans will afford us the additional opportunity for income and
gains through PIK interest and equity warrants and other similar equity instruments issued in conjunction with these mezzanine loans. These loans typically will have interest-
only payments in the early years, with amortization of principal deferred to the later years of the mezzanine loan term. Typically, our mezzanine loans will have maturities of
three to five years. We will generally target interest rates of 12% to 14%, payable currently in cash, for our mezzanine loan investments with higher targeted total returns from
equity warrants or PIK interest.

       We also pursue debt investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct investments or secondary purchases of
interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our
Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of
between three and seven years from the original investment date. The debt investments in our Middle Market portfolio have rights and protections that are similar to those in
our LMM debt investments, which may include affirmative and negative covenants, default penalties, lien protection, change of control provisions, guarantees and equity
pledges. The Middle Market debt investments generally have floating interest rates at the London Interbank Offered Rate ("LIBOR") plus a margin, and are typically subject to
LIBOR floors.

       Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our
LMM portfolio or our Middle Market portfolio, but are investments which have been originated through strategic relationships with other investment funds on a collaborative
basis. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien and typically have a term of between three and seven years from
the original investment date.

Warrants

       In connection with our debt investments, we occasionally receive equity warrants to establish or increase our equity interest in the portfolio company. Warrants we receive
in connection with a debt investment typically require only a nominal cost to exercise, and thus, as a portfolio company appreciates in value, we may achieve additional
investment return from this equity interest. We typically structure the warrants to provide provisions protecting our rights as a minority-interest holder, as well as secured or
unsecured put rights, or rights to sell such securities back to the portfolio company, upon the occurrence of specified events.

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In certain cases, we also may obtain registration rights in connection with these equity interests, which may include demand and "piggyback" registration rights.

Direct Equity Investments

       We also will seek to make direct equity investments in situations where it is appropriate to align our interests with key management and stockholders of our LMM portfolio
companies, and to allow for participation in the appreciation in the equity values of our LMM portfolio companies. We usually make our direct equity investments in connection
with debt investments in our LMM portfolio companies. In addition, we may have both equity warrants and direct equity positions in some of our LMM portfolio companies.
We seek to maintain fully diluted equity positions in our LMM portfolio companies of 5% to 50%, and may have controlling equity interests in some instances. We have a value
orientation toward our direct equity investments and have traditionally been able to purchase our equity investments at reasonable valuations.

INVESTMENT PROCESS

       Our management team's investment committee is responsible for all aspects of our investment processes. The current members of our investment committee are Dwayne L.
Hyzak, our Chief Executive Officer, David Magdol, our President and Chief Investment Officer, and Vincent D. Foster, our Executive Chairman.

       The investment processes for LMM and Middle Market portfolio investments are outlined below. The investment processes for Private Loan portfolio investments, from
origination to close and to eventual exit, follow the processes for our LMM portfolio investments or our Middle Market portfolio investments as outlined below, or a
combination thereof. Our investment strategy involves a "team" approach, whereby potential transactions are screened by several members of our investment team before being
presented to the investment committee. Our investment committee meets on an as-needed basis depending on transaction volume. We generally categorize our investment
process into seven distinct stages:

Deal Generation/Origination

       Deal generation and origination is maximized through long-standing and extensive relationships with industry contacts, brokers, commercial and investment bankers,
entrepreneurs, service providers such as lawyers, financial advisors and accountants, and current and former portfolio companies and investors. Our investment team has
focused its deal generation and origination efforts on LMM and Middle Market companies, and we have developed a reputation as a knowledgeable, reliable and active source
of capital and assistance in these markets.

Screening

       During the screening process, if a transaction initially meets our investment criteria, we will perform preliminary due diligence, taking into consideration some or all of the
following information:

•

•

•

•

•

•

a comprehensive financial model based on quantitative analysis of historical financial performance, projections and pro forma adjustments to determine the
estimated internal rate of return; 

a brief industry and market analysis; 

direct industry expertise imported from other portfolio companies or investors; 

preliminary qualitative analysis of the management team's competencies and backgrounds; 

potential investment structures and pricing terms; and 

regulatory compliance.

       Upon successful screening of a proposed LMM transaction, the investment team makes a recommendation to our investment committee. If our investment committee
concurs with moving forward on the proposed LMM transaction, we typically issue a non-binding term sheet to the company. For Middle

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Market portfolio investments, the initial term sheet is typically issued by the borrower, through the syndicating bank, and is screened by the investment team which makes a
recommendation to our investment committee.

Term Sheet

       For proposed LMM transactions, the non-binding term sheet will include the key economic terms based upon our analysis performed during the screening process, as well
as a proposed timeline and our qualitative expectation for the transaction. While the term sheet for LMM investments is non-binding, we typically receive an expense deposit in
order to move the transaction to the due diligence phase. Upon execution of a term sheet, we begin our formal due diligence process.

       For proposed Middle Market transactions, the initial term sheet will include key economic terms and other conditions proposed by the borrower and its representatives and
the proposed timeline for the investment, which are reviewed by our investment team to determine if such terms and conditions are in agreement with our investment objectives.

Due Diligence

       Due diligence on a proposed LMM investment is performed by a minimum of three of our investment professionals, whom we refer to collectively as the investment team,
and certain external resources, who together conduct due diligence to understand the relationships among the prospective portfolio company's business plan, operations and
financial performance. Our LMM due diligence review includes some or all of the following:

•

•

•

•

•

•

•

•

•

site visits with management and key personnel; 

detailed review of historical and projected financial statements; 

operational reviews and analysis; 

interviews with customers and suppliers; 

detailed evaluation of company management, including background checks; 

review of material contracts; 

in-depth industry, market and strategy analysis; 

regulatory compliance analysis; and 

review by legal, environmental or other consultants, if applicable.

       Due diligence on a proposed Middle Market investment is generally performed on materials and information obtained from certain external resources and assessed
internally by a minimum of two of our investment professionals, who work to understand the relationships among the prospective portfolio company's business plan, operations
and financial performance using the accumulated due diligence information. Our Middle Market due diligence review includes some or all of the following:

•

•

•

•

detailed review of historical and projected financial statements; 

in-depth industry, market, operational and strategy analysis; 

regulatory compliance analysis; and 

detailed review of the company's management team and their capabilities.

       During the due diligence process, significant attention is given to sensitivity analyses and how the company might be expected to perform given downside, base-case and
upside scenarios. In certain cases, we may decide not to make an investment based on the results of the diligence process.

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Document and Close

       Upon completion of a satisfactory due diligence review of a proposed LMM portfolio investment, the investment team presents the findings and a recommendation to our
investment committee. The presentation contains information which can include, but is not limited to, the following:

•

•

•

•

•

•

•

•

•

•

•

•

•

•

company history and overview; 

transaction overview, history and rationale, including an analysis of transaction strengths and risks; 

analysis of key customers and suppliers and key contracts; 

a working capital analysis; 

an analysis of the company's business strategy; 

a management and key equity investor background check and assessment; 

third-party accounting, legal, environmental or other due diligence findings; 

investment structure and expected returns; 

anticipated sources of repayment and potential exit strategies; 

pro forma capitalization and ownership; 

an analysis of historical financial results and key financial ratios; 

sensitivities to management's financial projections; 

regulatory compliance analysis findings; and 

detailed reconciliations of historical to pro forma results.

       Upon completion of a satisfactory due diligence review of a proposed Middle Market portfolio investment, the investment team presents the findings and a
recommendation to our investment committee. The presentation contains information which can include, but is not limited to, the following:

•

•

•

•

•

•

•

•

•

company history and overview; 

transaction overview, history and rationale, including an analysis of transaction strengths and risks; 

analysis of key customers and suppliers; 

an analysis of the company's business strategy; 

investment structure and expected returns; 

anticipated sources of repayment and potential exit strategies; 

pro forma capitalization and ownership; 

regulatory compliance analysis findings; and 

an analysis of historical financial results and key financial ratios.

       If any adjustments to the transaction terms or structures are proposed by the investment committee, such changes are made and applicable analyses are updated prior to
approval of the transaction. Approval for the transaction must be made by the affirmative vote from a majority of the members of the investment committee, with the committee
member managing the transaction, if any, abstaining from the vote. Upon receipt of transaction approval, the investment team will re-confirm regulatory compliance, process
and finalize all required legal documents, and fund the investment.

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Post-Investment

       We continuously monitor the status and progress of the portfolio companies. We generally offer managerial assistance to our portfolio companies, giving them access to our
investment experience, direct industry expertise and contacts. The same investment team that was involved in the investment process will continue its involvement in the
portfolio company post-investment. This provides for continuity of knowledge and allows the investment team to maintain a strong business relationship with key management
of our portfolio companies for post-investment assistance and monitoring purposes.

       As part of the monitoring process of LMM portfolio investments, the investment team will analyze monthly and quarterly financial statements versus the previous periods
and year, review financial projections, meet and discuss issues or opportunities with management, attend board meetings and review all compliance certificates and covenants.
While we maintain limited involvement in the ordinary course operations of our LMM portfolio companies, we maintain a higher level of involvement in non-ordinary course
financing or strategic activities and any non-performing scenarios. We also monitor the performance of our Middle Market portfolio investments; however, due to the larger size
and higher sophistication level of these Middle Market companies in comparison to our LMM portfolio companies, it is not necessary or practical to have as much direct
management interface.

       We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each
of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including, but not
limited to, each investment's expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity
investments, comparisons to competitors and other industry participants, the portfolio company's future outlook and other factors that are deemed to be significant to the
portfolio company.

Exit Strategies/Refinancing

       While we generally exit most investments through the refinancing or repayment of our debt and redemption or sale of our equity positions, we typically assist our LMM
portfolio companies in developing and planning exit opportunities, including any sale or merger of our portfolio companies. We may also assist in the structure, timing,
execution and transition of the exit strategy. The refinancing or repayment of Middle Market debt investments typically does not require our assistance due to the additional
resources available to these larger, Middle Market companies.

DETERMINATION OF NET ASSET VALUE AND INVESTMENT PORTFOLIO VALUATION PROCESS

       We determine the net asset value per share of our common stock on a quarterly basis. The net asset value per share is equal to our total assets minus total liabilities divided
by the total number of shares of common stock outstanding.

       We are required to report our investments at fair value. As a result, the most significant determination inherent in the preparation of our consolidated financial statements is
the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. We follow the provisions of the Financial Accounting Standards
Board Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for
measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value
measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a
hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

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       We determine in good faith the fair value of our Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by our
Board of Directors and in accordance with the 1940 Act. Our valuation policies and processes are intended to provide a consistent basis for determining the fair value of our
Investment Portfolio. See "Note B.1. — Valuation of the Investment Portfolio" in the notes to consolidated financial statements for a detailed discussion of our investment
portfolio valuation process and procedures.

       Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have
been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur
over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We
determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

       As described below, we undertake a multi-step valuation process each quarter in connection with determining the fair value of our investments, with our Board of Directors
having final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio and our valuation procedures,
consistent with 1940 Act requirements. In addition, the Audit Committee of our Board of Directors periodically evaluates the performance and methodologies of the financial
advisory services firm that we consult in connection with valuing our LMM and Private Loan portfolio company investments.

•

•

•

•

•

•

Our quarterly valuation process begins with each LMM and Private Loan portfolio company investment being initially valued by the investment team
responsible for monitoring the portfolio investment; 

The fair value determination for our Middle Market and Other Portfolio debt and equity investments and our investment in the External Investment
Manager consists of unobservable and observable inputs which are initially reviewed by the investment professionals responsible for monitoring the
portfolio investment; 

Preliminary valuation conclusions are then reviewed by and discussed with senior management, and the investment team considers and assesses, as
appropriate, any changes that may be required to the preliminary valuations to address any comments provided by senior management; 

A nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance
certification regarding the determinations of the fair value for our LMM and Private Loan portfolio companies; 

The Audit Committee of our Board of Directors reviews management's valuations, and the investment team and senior management consider and assess,
as appropriate, any changes that may be required to management's valuations to address any comments provided by the Audit Committee; and 

The Board of Directors assesses the valuations and ultimately approves the fair value of each investment in our portfolio in good faith.

       Determination of fair value involves subjective judgments and estimates. The notes to our consolidated financial statements refer to the uncertainty with respect to the
possible effect of such valuations, and any change in such valuations, on our financial results and financial condition.

COMPETITION

       We compete for investments with a number of investment funds (including private equity funds, mezzanine funds, BDCs, and SBICs), as well as traditional financial
services companies such as commercial banks and other sources of financing. Many of the entities that compete with us are larger and have more resources available to them.
We believe we are able to be competitive with these entities primarily on the basis of our focus toward the underserved LMM, the experience and contacts of our management
team, our

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responsive and efficient investment analysis and decision-making processes, our comprehensive suite of customized financing solutions and the investment terms we offer.

       We believe that some of our competitors make senior secured loans, junior secured loans and subordinated debt investments with interest rates and returns that are
comparable to or lower than the rates and returns that we target. Therefore, we do not seek to compete primarily on the interest rates and returns that we offer to potential
portfolio companies. For additional information concerning the competitive risks we face, see "Risk Factors — Risks Relating to Our Business and Structure — We may face
increasing competition for investment opportunities."

EMPLOYEES

       As of December 31, 2019, we had 71 employees. These employees include investment and portfolio management professionals, operations professionals and administrative
staff. As necessary, we will hire additional investment professionals and administrative personnel. All of our employees are located in our Houston, Texas office.

REGULATION

Regulation as a Business Development Company

       We have elected to be regulated as a BDC under the 1940 Act. The 1940 Act contains prohibitions and restrictions relating to transactions between BDCs and their
affiliates, principal underwriters and affiliates of those affiliates or underwriters. The 1940 Act requires that a majority of the members of the board of directors of a BDC be
persons other than "interested persons," as that term is defined in the 1940 Act. In addition, the 1940 Act provides that we may not change the nature of our business so as to
cease to be, or to withdraw our election as, a BDC unless approved by a majority of our outstanding voting securities.

       The 1940 Act defines "a majority of the outstanding voting securities" as the lesser of (i) 67% or more of the voting securities present at a meeting if the holders of more
than 50% of our outstanding voting securities are present or represented by proxy or (ii) more than 50% of our outstanding voting securities.

Qualifying Assets

       Under the 1940 Act, a BDC may not acquire any asset other than assets of the type listed in Section 55(a) of the 1940 Act, which are referred to as qualifying assets, unless,
at the time the acquisition is made, qualifying assets represent at least 70% of the company's total assets. The principal categories of qualifying assets relevant to our business
are any of the following:

(1)

(2)

(3)

(4)

Securities purchased in transactions not involving any public offering from the issuer of such securities, which issuer (subject to certain limited exceptions) is an
eligible portfolio company (as defined below), or from any person who is, or has been during the preceding 13 months, an affiliated person of an eligible
portfolio company, or from any other person, subject to such rules as may be prescribed by the SEC. 

Securities of any eligible portfolio company that we control. 

Securities purchased in a private transaction from a U.S. issuer that is not an investment company or from an affiliated person of the issuer, or in transactions
incident thereto, if the issuer is in bankruptcy and subject to reorganization or if the issuer, immediately prior to the purchase of its securities was unable to meet
its obligations as they came due without material assistance other than conventional lending or financing arrangements. 

Securities of an eligible portfolio company purchased from any person in a private transaction if there is no ready market for such securities and we already own
60% of the outstanding equity of the eligible portfolio company.

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(5)

(6)

Securities received in exchange for or distributed on or with respect to securities described in (1) through (4) above, or pursuant to the exercise of warrants or
rights relating to such securities. 

Cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment.

       In addition, a BDC must have been organized and have its principal place of business in the United States and must be operated for the purpose of making investments in
the types of securities described in (1), (2) or (3) above.

       An eligible portfolio company is defined in the 1940 Act as any issuer which:

(a)

(b)

(c)

is organized under the laws of, and has its principal place of business in, the United States; 

is not an investment company (other than a small business investment company wholly owned by the BDC) or a company that would be an investment company
but for certain exclusions under the 1940 Act; and 

satisfies any of the following: 

(i)

(ii)

(iii)

does not have any class of securities that is traded on a national securities exchange or has a class of securities listed on a national securities exchange
but has an aggregate market value of outstanding voting and non-voting common equity of less than $250 million; 

is controlled by a BDC or a group of companies including a BDC and the BDC has an affiliated person who is a director of the eligible portfolio
company; or 

is a small and solvent company having total assets of not more than $4 million and capital and surplus of not less than $2 million.

Managerial Assistance to Portfolio Companies

       As noted above, a BDC must be operated for the purpose of making investments in the type of securities described in (1), (2) or (3) above under the heading entitled "—
Qualifying Assets." In addition, BDCs must generally offer to make available to such issuer of the securities (other than small and solvent companies described above)
significant managerial assistance; except that, where we purchase such securities in conjunction with one or more other persons acting together, one of the other persons in the
group may make available such managerial assistance. Making available managerial assistance means, among other things, any arrangement whereby the BDC, through its
directors, officers or employees, offers to provide, and, if accepted, does so provide, significant guidance and counsel concerning the management, operations or business
objectives and policies of a portfolio company.

Temporary Investments

       Pending investment in "qualifying assets," as described above, our investments may consist of cash, cash equivalents, U.S. government securities and high-quality debt
securities maturing in one year or less from time of investment therein, so that 70% of our assets are qualifying assets.

Senior Securities

       Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as defined in the 1940 Act, equals
at least 200% of all debt and/or senior stock immediately after each such issuance. However, 2018 legislation modified the 1940 Act by allowing a BDC to increase the
maximum amount of leverage it may incur from an asset coverage ratio of 200% to an asset coverage ratio of 150%, if certain requirements are met. We are permitted to
increase our leverage capacity if stockholders representing at least a majority of the votes cast, when quorum is met, approve a proposal to do so. If we receive such stockholder
approval, we would be permitted to increase our leverage capacity on the first day after such approval. Alternatively, we may increase the maximum amount of

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leverage we may incur to an asset coverage ratio of 150% if the "required majority" of our independent directors as defined in Section 57(o) of the 1940 Act approve such
increase with such approval becoming effective after one year. In either case, we would be required to make certain disclosures on our website and in SEC filings regarding,
among other things, the receipt of approval to increase our leverage, our leverage capacity and usage, and risks related to leverage. In addition, while any senior securities
remain outstanding (other than senior securities representing indebtedness issued in consideration of a privately arranged loan which is not intended to be publicly distributed),
we must make provisions to prohibit any distribution to our stockholders or the repurchase of such securities or shares unless we meet the applicable asset coverage ratios at the
time of the distribution or repurchase. We may also borrow amounts up to 5% of the value of our total assets for temporary or emergency purposes without regard to asset
coverage. For a discussion of the risks associated with leverage, see "Risk Factors — Risks Relating to Our Business and Structure," including, without limitation, "— Because
we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

       We have previously received an exemptive order from the SEC to exclude debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate
as SBICs from the asset coverage requirements of the 1940 Act as applicable to Main Street. The exemptive order provides for the exclusion of all debt securities issued by the
Funds, including the $311.8 million of outstanding debt as of December 31, 2019, issued pursuant to the SBIC program. This exemptive order provides us with expanded
capacity and flexibility in obtaining future sources of capital for our investment and operational objectives.

Common Stock

       We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or
rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in our best interests
and that of our stockholders, and our stockholders approve such sale. In any such case, the price at which our securities are to be issued and sold may not be less than a price
which, in the determination of our Board of Directors, closely approximates the market value of such securities (less any distributing commission or discount). We did not seek
stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2019 annual meeting of stockholders
because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011. Our stockholders have previously approved
a proposal that authorizes us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. We may also make rights offerings
to our stockholders at prices per share less than the net asset value per share, subject to applicable requirements of the 1940 Act. See "Risk Factors — Risks Relating to Our
Business and Structure — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per
share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock."

Code of Ethics

       We have adopted a code of ethics pursuant to Rule 17j-1 under the 1940 Act that establishes procedures for personal investments and restricts certain personal securities
transactions. Personnel subject to the code may invest in securities for their personal investment accounts, including securities that may be purchased or held by us, so long as
such investments are made in accordance with the code's requirements. The code of ethics is available on the EDGAR Database on the SEC's Web site at http://www.sec.gov.

Proxy Voting Policies and Procedures

       We vote proxies relating to our portfolio securities in a manner in which we believe is consistent with the best interest of our stockholders. We review on a case-by-case
basis each proposal submitted to a stockholder vote to determine its impact on the portfolio securities held by us. Although we generally vote against

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proposals that we expect would have a negative impact on our portfolio securities, we may vote for such a proposal if there exists compelling long-term reasons to do so.

       Our proxy voting decisions are made by the investment team which is responsible for monitoring each of our investments. To ensure that our vote is not the product of a
conflict of interest, we require that anyone involved in the decision-making process discloses to our chief compliance officer any potential conflict regarding a proxy vote of
which he or she is aware.

       Stockholders may obtain information, without charge, regarding how we voted proxies with respect to our portfolio securities by making a written request for proxy voting
information to: Chief Compliance Officer, 1300 Post Oak Boulevard, 8th Floor, Houston, Texas 77056.

Other 1940 Act Regulations

       We are also prohibited under the 1940 Act from knowingly participating in certain transactions with our affiliates without the prior approval of our Board of Directors who
are not interested persons and, in some cases, prior approval by the SEC.

       We are required to provide and maintain a bond issued by a reputable fidelity insurance company to protect us against larceny and embezzlement. Furthermore, as a BDC,
we are prohibited from protecting any director or officer against any liability to us or our stockholders arising from willful misfeasance, bad faith, gross negligence or reckless
disregard of the duties involved in the conduct of such person's office.

       We are required to adopt and implement written policies and procedures reasonably designed to prevent violation of the federal securities laws, review these policies and
procedures no less frequently than annually for their adequacy and the effectiveness of their implementation, and to designate a chief compliance officer to be responsible for
administering the policies and procedures.

       We may be periodically examined by the SEC for compliance with the 1940 Act.

Small Business Investment Company Regulations

       Each of the Funds is licensed by the SBA to operate as a SBIC under Section 301(c) of the Small Business Investment Act of 1958. MSMF obtained its SBIC license in
2002, MSC II obtained its license in 2006 and MSC III obtained its license in 2016.

       SBICs are designed to stimulate the flow of private capital to eligible small businesses. Under SBIC regulations, SBICs may make loans to eligible small businesses, invest
in the equity securities of such businesses and provide them with consulting and advisory services. Each of the Funds has typically invested in secured debt, acquired warrants
and/or made equity investments in qualifying small businesses.

       The Funds are subject to regulation and oversight by the SBA, including requirements with respect to reporting financial information, such as the extent of capital
impairment if applicable, on a regular basis and annual examinations conducted by the SBA. The SBA, as a creditor, will have a superior claim to the Funds' assets over our
securities holders in the event the Funds are liquidated or the SBA exercises its remedies under the SBA-guaranteed debentures issued by the Funds upon an event of default.

       We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our 200% asset coverage test under the 1940
Act. As such, our ratio of total consolidated assets to outstanding indebtedness may be less than 200%. This provides us with increased investment flexibility but also increases
our risks related to leverage. See "Risk Factors — Risks Relating to Our Business and Structure — Because we borrow money, the potential for gain or loss on amounts
invested in us is magnified and may increase the risk of investing in us."

       Under present SBIC regulations, eligible small businesses generally include businesses that (together with their affiliates) have a tangible net worth not exceeding
$19.5 million or have average annual net income after U.S. federal income taxes not exceeding $6.5 million (average net income to be computed without benefit of

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any carryover loss) for the two most recent fiscal years. In addition, an SBIC must devote 25% of its investment activity to "smaller" enterprises as defined by the SBA. A
smaller enterprise generally includes businesses that have a tangible net worth not exceeding $6 million and have average annual net income after U.S. federal income taxes not
exceeding $2 million (average net income to be computed without benefit of any net carryover loss) for the two most recent fiscal years. SBIC regulations also provide
alternative size standard criteria to determine eligibility for designation as an eligible small business or smaller enterprise, which criteria depend on the primary industry in
which the business is engaged and are based on such factors as the number of employees and gross revenue. However, once an SBIC has invested in a company, it generally
may continue to make follow-on investments in the company, regardless of the size of the portfolio company at the time of the follow-on investment, up to the time of the
portfolio company's initial public offering.

       The SBA prohibits an SBIC from providing funds to small businesses for certain purposes, such as relending and investment outside the United States, to businesses
engaged in certain prohibited industries, and to certain "passive" (non-operating) companies. In addition, without prior SBA approval, an SBIC may not invest an amount equal
to more than approximately 30% of the SBIC's regulatory capital, as defined by the SBA, in any one portfolio company and its affiliates.

       The SBA places certain limitations on the financing terms of investments by SBICs in portfolio companies (such as limiting the permissible interest rate on debt securities
held by an SBIC in a portfolio company). Included in such limitations are SBIC regulations which allow an SBIC to exercise control over a small business for a period of seven
years from the date on which the SBIC initially acquires its control position. This control period may be extended for an additional period of time with the SBA's prior written
approval.

       The SBA restricts the ability of an SBIC to lend money to any of its officers, directors and employees or to invest in affiliates thereof. The SBA also prohibits, without prior
SBA approval, a "change of control" of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of equity of
a licensed SBIC. A "change of control" is any event which would result in the transfer of the power, direct or indirect, to direct the management and policies of an SBIC,
whether through ownership, contractual arrangements or otherwise.

       The SBIC licenses allow the Funds to incur leverage by issuing SBA-guaranteed debentures, subject to the issuance of a capital commitment and certain approvals by the
SBA and customary procedures. SBA-guaranteed debentures carry long-term fixed rates that are generally lower than rates on comparable bank and other debt. Under
applicable regulations, an SBIC may generally have outstanding debentures guaranteed by the SBA in amounts up to twice the amount of the privately raised funds of the SBIC.
Debentures guaranteed by the SBA have a maturity of ten years, require semiannual payments of interest, do not require any principal payments prior to maturity, and are not
subject to prepayment penalties. As of December 31, 2019, we, through the Funds, had $311.8 million of outstanding SBA-guaranteed debentures, which had an annual
weighted-average interest rate of approximately 3.6%.

       SBICs must invest idle funds that are not being used to make loans in investments permitted under SBIC regulations in the following limited types of securities: (i) direct
obligations of, or obligations guaranteed as to principal and interest by, the United States government, which mature within 15 months from the date of the investment;
(ii) repurchase agreements with federally insured institutions with a maturity of seven days or less (and the securities underlying the repurchase obligations must be direct
obligations of or guaranteed by the federal government); (iii) certificates of deposit with a maturity of one year or less, issued by a federally insured institution; (iv) a deposit
account in a federally insured institution that is subject to a withdrawal restriction of one year or less; (v) a checking account in a federally insured institution; or (vi) a
reasonable petty cash fund.

       SBICs are periodically examined and audited by the SBA's staff to determine their compliance with SBIC regulations and are periodically required to file certain financial
information and other documents with the SBA.

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       Neither the SBA nor the U.S. government or any of its agencies or officers has approved any ownership interest to be issued by us or any obligation that we or any of our
subsidiaries may incur.

Securities Exchange Act of 1934 and Sarbanes-Oxley Act Compliance

       We are subject to the reporting and disclosure requirements of the Securities Exchange Act of 1934 (the "Exchange Act"), including the filing of quarterly, annual and
current reports, proxy statements and other required items. In addition, we are subject to the Sarbanes-Oxley Act of 2002, which imposes a wide variety of regulatory
requirements on publicly-held companies and their insiders. For example:

•

•

•

•

pursuant to Rule 13a-14 of the Exchange Act, our Chief Executive Officer and Chief Financial Officer are required to certify the accuracy of the
consolidated financial statements contained in our periodic reports; 

pursuant to Item 307 of Regulation S-K, our periodic reports are required to disclose our conclusions about the effectiveness of our disclosure controls
and procedures; 

pursuant to Rule 13a-15 of the Exchange Act, our management is required to prepare a report regarding its assessment of our internal control over
financial reporting, and our independent registered public accounting firm separately audits our internal control over financial reporting; and 

pursuant to Item 308 of Regulation S-K and Rule 13a-15 of the Exchange Act, our periodic reports must disclose whether there were significant changes
in our internal control over financial reporting or in other factors that could significantly affect these controls subsequent to the date of their evaluation,
including any corrective actions with regard to significant deficiencies and material weaknesses.

The New York Stock Exchange Corporate Governance Regulations

       The New York Stock Exchange ("NYSE") has adopted corporate governance regulations that listed companies must comply with. We believe we are in compliance with
such corporate governance listing standards. We intend to monitor our compliance with all future listing standards and to take all necessary actions to ensure that we stay in
compliance.

Investment Adviser Regulations

       The External Investment Manager, which is wholly owned by us, is subject to regulation under the Advisers Act. The Advisers Act establishes, among other things,
recordkeeping and reporting requirements, disclosure requirements, limitations on transactions between the adviser's account and an advisory client's account, limitations on
transactions between the accounts of advisory clients, and general anti-fraud prohibitions. The External Investment Manager may be examined by the SEC from time to time for
compliance with the Advisers Act.

Taxation as a Regulated Investment Company

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC under Subchapter M of the Code. MSCC's taxable income includes the taxable income
generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, we generally will not pay
corporate-level U.S. federal income taxes on any income that we distribute to our stockholders as dividends. To qualify as a RIC, we must, among other things, meet certain
source-of-income and asset diversification requirements (as described below). In addition, in order to obtain RIC tax treatment, we must distribute to our stockholders, for each
taxable year, at least 90% of our "investment company taxable income," which is generally our net ordinary taxable income plus the excess of realized net short-term capital
gains over realized net long-term capital losses, and 90% of our tax-exempt income (the "Annual Distribution Requirement"). As part of maintaining RIC status, undistributed
taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal
year, provided such dividends are declared on or prior to the

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later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such
taxable income was generated.

       For any taxable year in which we qualify as a RIC and satisfy the Annual Distribution Requirement, we will not be subject to U.S. federal income tax on the portion of our
income or capital gains we distribute (or are deemed to distribute) to stockholders. We will be subject to U.S. federal income tax at the regular corporate rates on any income or
capital gains not distributed (or deemed distributed) to our stockholders.

       We are subject to a 4% non-deductible U.S. federal excise tax on certain undistributed income unless we distribute in a timely manner an amount at least equal to the sum of
(1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year
and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S. federal income tax (the "Excise Tax Avoidance Requirement").
Dividends declared and paid by us in a year will generally differ from taxable income for that year as such dividends may include the distribution of current year taxable
income, exclude amounts carried over into the following year, and include the distribution of prior year taxable income carried over into and distributed in the current year. For
amounts we carry over into the following year, we will be required to pay the 4% U.S. federal excise tax on the excess of 98% of our annual investment company taxable
income and 98.2% of our capital gain net income over our distributions for the year.

       In order to qualify as a RIC for U.S. federal income tax purposes, we must, among other things:

•

•

•

continue to qualify as a BDC under the 1940 Act at all times during each taxable year; 

derive in each taxable year at least 90% of our gross income from dividends, interest, payments with respect to certain securities, loans, gains from the
sale of stock or other securities, net income from certain "qualified publicly traded partnerships," or other income derived with respect to our business of
investing in such stock or securities (the "90% Income Test"); and 

diversify our holdings so that at the end of each quarter of the taxable year: 

•

•

at least 50% of the value of our assets consists of cash, cash equivalents, U.S. government securities, securities of other RICs, and other
securities if such other securities of any one issuer do not represent more than 5% of the value of our assets or more than 10% of the outstanding
voting securities of the issuer; and 

no more than 25% of the value of our assets is invested in the securities, other than U.S. government securities or securities of other RICs, (i) of
one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or
similar or related trades or businesses or (iii) of certain "qualified publicly traded partnerships" (collectively, the "Diversification Tests").

       In order to comply with the 90% Income Test, we formed the Taxable Subsidiaries as wholly owned taxable subsidiaries for the primary purpose of permitting us to own
equity interests in portfolio companies which are "pass-through" entities for tax purposes. Absent the taxable status of the Taxable Subsidiaries, a portion of the gross income
from such portfolio companies would flow directly to us for purposes of the 90% Income Test. To the extent such income did not consist of income derived from securities,
such as dividends and interest, it could jeopardize our ability to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. The Taxable Subsidiaries
are consolidated with Main Street for generally accepted accounting principles in the United States of America ("U.S. GAAP") purposes and are included in our consolidated
financial statements, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements. The Taxable Subsidiaries are not
consolidated with Main Street for income tax purposes and may generate income tax expense, or benefit, as a result of their ownership of the portfolio investments. The income
tax expense, or benefit, if any, and any related tax assets and liabilities, are reflected in our consolidated financial statements.

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       The External Investment Manager is accounted for as a portfolio investment for U.S. GAAP purposes and is an indirect wholly owned subsidiary of MSCC, owned through
a Taxable Subsidiary. The External Investment Manager is owned by a Taxable Subsidiary in order to comply with the 90% Income Test, since the External Investment
Manager's income would likely not consist of income derived from securities, such as dividends and interest, and as result, it could jeopardize our ability to qualify as a RIC
and, therefore, cause us to incur significant U.S. federal income taxes. As a result of its ownership by a Taxable Subsidiary, the External Investment Manager is a disregarded
entity for tax purposes. The External Investment Manager has also entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment
Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements, and as a
result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed
at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if
any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager's separate financial statements.

       We may be required to recognize taxable income in circumstances in which we do not receive cash. For example, if we hold debt obligations that are treated under
applicable tax rules as having original issue discount (such as debt instruments issued with warrants and debt securities invested in at a discount to par), we must include in
income each year a portion of the original issue discount that accrues over the life of the obligation, regardless of whether cash representing such income is received by us in the
same taxable year. We may also have to include in income other amounts that we have not yet received in cash such as PIK interest, cumulative dividends or amounts that are
received in non-cash compensation such as warrants or stock. Because any original issue discount or other amounts accrued will be included in our investment company taxable
income for the year of accrual, we may be required to make a distribution to our stockholders in order to satisfy the Annual Distribution Requirement, even though we will not
have received any corresponding cash amount.

       Although we do not presently expect to do so, we are authorized to borrow funds and to sell assets in order to satisfy distribution requirements. However, under the 1940
Act, we are not permitted to make distributions to our stockholders in certain circumstances while our debt obligations and other senior securities are outstanding unless certain
"asset coverage" tests are met. See "Regulation — Regulation as a Business Development Company — Senior Securities." Moreover, our ability to dispose of assets to meet our
distribution requirements may be limited by (1) the illiquid nature of our portfolio and/or (2) other requirements relating to our status as a RIC, including the Diversification
Tests. If we dispose of assets in order to meet the Annual Distribution Requirement or the Excise Tax Avoidance Requirement, we may make such dispositions at times that,
from an investment standpoint, are not advantageous.

       We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the U.S. Department of the Treasury
("Treasury") regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal
Revenue Service has issued guidance indicating that this rule will apply even where the total amount of cash that may be distributed is limited to no more than 20% of the total
distribution. According to this guidance, if too many stockholders elect to receive their distributions in cash, each such stockholder would receive a pro rata share of the total
cash to be distributed and would receive the remainder of their distribution in shares of stock. Taxable stockholders receiving such dividends will be required to include the full
amount of the dividend (whether received in cash, our stock, or a combination thereof) as (i) ordinary income (including any qualified dividend income that, in the case of a
noncorporate stockholder, may be eligible for the same reduced maximum tax rate applicable to long-term capital gains to the extent such distribution is properly reported by us
as qualified dividend income and such stockholder satisfies certain minimum holding period requirements with respect to our stock) or (ii) long-term capital gain (to the extent
such distribution is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a
result, a U.S. stockholder

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may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives in order to pay this tax, the sales
proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with
respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable
in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on
the trading price of our stock.

Failure to Qualify as a RIC

       If we fail to satisfy the 90% Income Test or the Diversification Tests for any taxable year, we may nevertheless continue to qualify as a RIC for such year if certain relief
provisions are applicable (which may, among other things, require us to pay certain corporate-level U.S. federal taxes or to dispose of certain assets).

       If we were unable to qualify for treatment as a RIC and the foregoing relief provisions are not applicable, we would be subject to tax on all of our taxable income at regular
corporate rates. We would not be able to deduct distributions to stockholders, nor would they be required to be made. If we were subject to tax on all of our taxable income at
regular corporate rates, then distributions we make after being subject to such tax would be taxable to our stockholders and, provided certain holding period and other
requirements were met, could qualify for treatment as "qualified dividend income" eligible for the maximum 20% rate (plus a 3.8% Medicare surtax, if applicable) applicable to
qualified dividends to the extent of our current and accumulated earnings and profits. Subject to certain limitations under the Code, corporate taxpayers would be eligible for a
dividends-received deduction on distributions they receive. Distributions in excess of our current and accumulated earnings and profits would be treated first as a return of
capital to the extent of the stockholder's tax basis, and any remaining distributions would be treated as a capital gain. To requalify as a RIC in a subsequent taxable year, we
would be required to satisfy the RIC qualification requirements for that year and dispose of any earnings and profits from any year in which we failed to qualify as a RIC.
Subject to a limited exception applicable to RICs that qualified as such under Subchapter M of the Code for at least one year prior to disqualification and that requalify as a RIC
no later than the second year following the nonqualifying year, we could be subject to tax on any unrealized net built-in gains in the assets held by us during the period in which
we failed to qualify as a RIC that are recognized within the subsequent five years, unless we made a special election to pay corporate-level U.S. federal income tax on such built-
in gain at the time of our requalification as a RIC.

    Item 1A.    Risk Factors 

       Investing in our securities involves a number of significant risks. In addition to the other information contained in this Annual Report on Form 10-K, you should consider
carefully the following information before making an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not
presently known to us or not presently deemed material by us might also impair our operations and performance. If any of the following events occur, our business, financial
condition and results of operations could be materially and adversely affected. In such case, our net asset value, the trading price of our common stock and the value of our
other securities could decline, and you may lose all or part of your investment.

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RISKS RELATING TO ECONOMIC CONDITIONS

Deterioration in the economy and financial markets increases the likelihood of adverse effects on our financial position and results of operations. Such economic
adversity could impair our portfolio companies' financial positions and operating results and affect the industries in which we invest, which could, in turn, harm
our operating results.

       The broader fundamentals of the United States economy remain mixed. In the event that the United States economy contracts, it is likely that the financial results of small to
mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting
their debt service requirements and an increase in defaults. In addition, a decline in oil and natural gas prices would adversely affect the credit quality of our debt investments
and the underlying operating performance of our equity investments in energy-related businesses. Consequently, we can provide no assurance that the performance of certain
portfolio companies will not be negatively impacted by economic cycles, industry cycles or other conditions, which could also have a negative impact on our future results.

       Although we have been able to secure access to additional liquidity, including through our multi-year revolving credit facility (the "Credit Facility"), public debt issuances,
leverage available through the SBIC program and equity offerings, the potential for volatility in the debt and equity capital markets provides no assurance that debt or equity
capital will be available to us in the future on favorable terms, or at all. Further, if the price of our common stock falls below our net asset value per share, we will be limited in
our ability to sell new shares if we do not have stockholder authorization to sell shares at a price below net asset value per share. We did not seek stockholder authorization to
sell shares of our common stock below the then current net asset value per share of our common stock at our 2019 annual meeting of stockholders because our common stock
price had been trading significantly above the net asset value per share of our common stock since 2011.

Global capital markets could enter a period of severe disruption and instability. These conditions have historically affected and could again materially and adversely
affect debt and equity capital markets in the United States, which could have a materially negative impact on our business, financial condition and results of
operations.

       The U.S. and global capital markets have, from time to time, experienced periods of disruption characterized by the freezing of available credit, a lack of liquidity in the
debt capital markets, significant losses in the principal value of investments, the re-pricing of credit risk in the broadly syndicated credit market, the failure of major financial
institutions and general volatility in the financial markets. During these periods of disruption, general economic conditions deteriorated with material and adverse consequences
for the broader financial and credit markets, and the availability of debt and equity capital for the market as a whole, and financial services firms in particular, was reduced
significantly. These conditions may reoccur for a prolonged period of time or materially worsen in the future. In addition, the United Kingdom's withdrawal agreement to leave
the European Union (the so called "Brexit") could lead to further market disruptions and currency volatility, potentially weakening consumer, corporate and financial
confidence and resulting in lower economic growth for companies that rely significantly on Europe for their business activities and revenues. The implications of the United
Kingdom's withdrawal from the European Union, including the possibility of a "No-deal Brexit," are unclear at present. Additionally, trade wars and volatility in the global
markets for stocks and commodities may affect other financial markets worldwide. We may in the future have difficulty accessing debt and equity capital markets, and a severe
disruption in the global financial markets, deterioration in credit and financing conditions or uncertainty regarding U.S. government spending and deficit levels, Brexit or other
global economic conditions could have a material adverse effect on our business, financial condition and results of operations.

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RISKS RELATING TO OUR BUSINESS AND STRUCTURE

Our Investment Portfolio is and will continue to be recorded at fair value, with our Board of Directors having final responsibility for overseeing, reviewing and
approving, in good faith, our determination of fair value and, as a result, there is and will continue to be uncertainty as to the value of our portfolio investments.

       Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us with
our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and our valuation procedures.
Typically, there is not a public market for the securities of the privately held LMM or Private Loan companies in which we have invested and will generally continue to invest.
As a result, we value these securities quarterly at fair value based on inputs from management, a nationally recognized independent financial advisory services firm (on a
rotational basis) and the Audit Committee of our Board of Directors with the oversight, review and approval of our Board of Directors. In addition, the market for investments
in Middle Market companies is generally not a liquid market, and therefore, we primarily use a combination of observable inputs in non-active markets for which sufficient
observable inputs were not available to determine the fair value of these investments and unobservable inputs, which are reviewed by the Audit Committee with the oversight,
review and approval of our Board of Directors. See "Note B.1. — Valuation of the Investment Portfolio" in the notes to consolidated financial statements for a more detailed
description of our investment portfolio valuation process and procedures.

       The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation
process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private
mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of securities in privately held companies, are inherently
uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been
used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our net asset value on a given date to materially understate or
overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our securities based on an overstated net asset value
would pay a higher price than the value of our investments might warrant. Conversely, investors selling our securities during a period in which the net asset value understates the
value of our investments may receive a lower price for their securities than the value of our investments might warrant.

Our financial condition and results of operations depends on our ability to effectively manage and deploy capital.

       Our ability to achieve our investment objective of maximizing our portfolio's total return by generating current income from our debt investments and capital appreciation
from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company, depends on our
ability to effectively manage and deploy capital, which depends, in turn, on our investment team's ability to identify, evaluate and monitor, and our ability to finance and invest
in, companies that meet our investment criteria.

       Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team's handling of the investment process, its ability to provide
competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments,
members of our investment team are also called upon, from time to time, to provide managerial assistance to some of our portfolio companies. These demands on their time
may distract them or slow the rate of investment.

       Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business,
financial condition, results of operations and

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prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding
alternatives in the financial markets and economic conditions. Furthermore, if we cannot successfully operate our business or implement our investment policies and strategies
as described herein, it could negatively impact our ability to pay dividends.

We may face increasing competition for investment opportunities.

       We compete for investments with other investment funds (including private equity funds, debt funds, mezzanine funds, collateralized loan obligation funds, or CLOs, BDCs
and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and
have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding
sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could
allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We
may lose investment opportunities if we do not match our competitors' pricing, terms and structure. If we are forced to match our competitors' pricing, terms and structure, we
may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A significant part of our competitive advantage stems from the fact
that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the
size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors are not subject to the regulatory
restrictions that the 1940 Act imposes on us as a BDC.

We are dependent upon our key investment personnel for our future success.

       We depend on the members of our investment team, particularly Dwayne L. Hyzak, David L. Magdol, Vincent D. Foster, Jesse E. Morris, K. Colton Braud, III, Damian T.
Burke, Nicholas T. Meserve, Samuel A. Cashiola and Watt R. Matthews, for the identification, review, final selection, structuring, closing and monitoring of our investments.
These employees have significant investment expertise and relationships that we rely on to implement our business plan. Although we have entered into non-compete
arrangements with all of our executive officers and other key employees, we cannot guarantee that any employees will remain employed with us. If we lose the services of the
individuals mentioned above, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to
suffer.

Our success depends on attracting and retaining qualified personnel in a competitive environment.

       Our growth will require that we retain new investment and administrative personnel in a competitive market. Our ability to attract and retain personnel with the requisite
credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities.
Many of the entities, including investment funds (such as private equity funds, debt funds and mezzanine funds) and traditional financial services companies, with which we
compete for experienced personnel have greater resources than we have.

       The competitive environment for qualified personnel may require us to take certain measures to ensure that we are able to attract and retain experienced personnel. Such
measures may include increasing the attractiveness of our overall compensation packages, altering the structure of our compensation packages through the use of additional
forms of compensation, or other steps. The inability to attract and retain experienced personnel would have a material adverse effect on our business.

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Our business model depends to a significant extent upon strong referral relationships, and our inability to maintain or develop these relationships, as well as the
failure of these relationships to generate investment opportunities, could adversely affect our business.

       We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers,
financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us
with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment
opportunities, we will not be able to grow our Investment Portfolio. In addition, individuals with whom members of our management team have relationships are not obligated
to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us.

Our executive officers and employees, through the External Investment Manager, may manage other investment funds, including HMS Income, that operate in the
same or a related line of business as we do, which may result in significant conflicts of interest.

       Our executive officers and employees, through the External Investment Manager, may manage other investment funds that operate in the same or a related line of business
as we do, and which funds may be invested in by us and/or our executive officers and employees. Accordingly, they may have obligations to such other entities, the fulfillment
of which obligations may not be in the best interests of us or our stockholders. During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser,
which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining
required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the
fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC
tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by
HMS Adviser under its advisory agreement with HMS Income. The sub-advisory relationship requires us to commit resources to achieving HMS Income's investment objective,
while such resources were previously solely devoted to achieving our investment objective. Our investment objective and investment strategies are very similar to those of HMS
Income and it is likely that an investment appropriate for us or HMS Income would be appropriate for the other entity. As a result, we and HMS Income requested an exemptive
order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where our co-investing would otherwise be prohibited under the 1940
Act. The SEC granted the exemptive order in April 2014, and we have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance
with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is
appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. As a consequence, it may be more
difficult for us to maintain or increase the size of our Investment Portfolio in the future. Although we will endeavor to allocate investment opportunities in a fair and equitable
manner, including in accordance with the conditions set forth in the exemptive order issued by the SEC when relying on such order, we may face conflicts in allocating
investment opportunities between us and other funds managed by the External Investment Manager, including HMS Income. Because the External Investment Manager may
receive performance-based fee compensation from HMS Income and any other funds it manages, this may provide an incentive to allocate opportunities to HMS Income and
any other funds it manages instead of us. We have implemented an allocation policy to ensure the equitable distribution of investment opportunities and, as a result, may be
unable to participate in certain investments based upon such allocation policy.

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We, through the External Investment Manager, derive revenues from managing third-party funds pursuant to management agreements that may be terminated
pursuant to the terms of such agreements or requirements under the 1940 Act.

       The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on
the performance of the funds managed, including HMS Income. The terms of fund investment management agreements generally give the manager of the fund and the fund
itself the right to terminate the management agreement in certain circumstances. With respect to funds that are not exempt from regulation under the 1940 Act, the fund's
investment management agreement must be approved annually by (a) such fund's board of directors or by the vote of a majority of such fund's stockholders and (b) the majority
of the independent members of such fund's board of directors and, in certain cases, by its stockholders, as required by law. The funds' investment management agreements can
also be terminated by the majority of such fund's stockholders. Termination of any such management agreements would reduce the fees we earn from the relevant funds through
the External Investment Manager, which could have a material adverse effect on our results of operations. Currently, HMS Income, an investment company that has elected to
be regulated as a BDC under the 1940 Act, is subject to these provisions of the 1940 Act.

Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital.

       Our business will require capital to operate and grow. We may acquire such additional capital from the following sources:

       Senior Securities.     We may issue debt securities or preferred stock and/or borrow money from banks or other financial institutions, which we refer to collectively
as senior securities. As a result of issuing senior securities, we will be exposed to additional risks, including the following:

•

•

•

•

•

Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as
defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) immediately after each issuance of senior securities. We
have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our asset coverage test
under the 1940 Act. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we will be prohibited from issuing
debt securities or preferred stock and/or borrowing money from banks or other financial institutions and may not be permitted to declare a
dividend or make any distribution to stockholders or repurchase shares until such time as we satisfy this test. 

Any amounts that we use to service our debt or make payments on preferred stock will not be available for dividends to our common
stockholders. 

It is likely that any senior securities or other indebtedness we issue will be governed by an indenture or other instrument containing covenants
restricting our operating flexibility. Additionally, some of these securities or other indebtedness may be rated by rating agencies, and in obtaining
a rating for such securities and other indebtedness, we may be required to abide by operating and investment guidelines that further restrict
operating and financial flexibility. 

We and, indirectly, our stockholders will bear the cost of issuing and servicing such securities and other indebtedness. 

Preferred stock or any convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more
favorable than those of our common stock, including separate voting rights and could delay or prevent a transaction or a change in control to the
detriment of the holders of our common stock.

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•

Any unsecured debt issued by us would rank (i) pari passu with our current and future unsecured indebtedness and effectively subordinated to all
of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, and (ii) structurally
subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including the SBA-guaranteed debentures
issued by the Funds.

       Additional Common Stock.     The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such
stock, with certain exceptions. One such exception is prior stockholder approval of issuances below current net asset value per share provided that our Board of
Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of
our common stock at our 2019 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our
common stock since 2011. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset
value of the common stock if our Board of Directors determines that such sale is in the best interests of our stockholders, and our stockholders approve such sale. See
"— Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our
common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion of the risks related to us issuing shares of our
common stock below net asset value. Our stockholders have authorized us to issue warrants, options or rights to subscribe for, convert to, or purchase shares of our
common stock at a price per share below the net asset value per share, subject to the applicable requirements of the 1940 Act. There is no expiration date on our ability to
issue such warrants, options, rights or convertible securities based on this stockholder approval. If we raise additional funds by issuing more common stock or senior
securities convertible into, or exchangeable for, our common stock, the percentage ownership of our stockholders at that time would decrease, and they may experience
dilution. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.

The Funds are licensed by the SBA, and therefore subject to SBIC regulations.

       The Funds, our wholly owned subsidiaries, are licensed to act as SBICs and are regulated by the SBA. The SBA also places certain limitations on the financing terms of
investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in a few prohibited industries. Compliance with
SBA requirements may cause the Funds to forego attractive investment opportunities that are not permitted under SBIC regulations.

       Further, the SBIC regulations require, among other things, that a licensed SBIC be periodically examined by the SBA and audited by an independent auditor, in each case
to determine the SBIC's compliance with the relevant SBIC regulations. The SBA prohibits, without prior SBA approval, a "change of control" of an SBIC or transfers that
would result in any person (or a group of persons acting in concert) owning 10% or more of a class of capital stock of a licensed SBIC. If the Funds fail to comply with
applicable SBIC regulations, the SBA could, depending on the severity of the violation, limit or prohibit their use of SBIC debentures, declare outstanding SBIC debentures
immediately due and payable, and/or limit them from making new investments. In addition, the SBA can revoke or suspend a license for willful or repeated violation of, or
willful or repeated failure to observe, any provision of the Small Business Investment Act of 1958 or any rule or regulation promulgated thereunder. Such actions by the SBA
would, in turn, negatively affect us.

Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.

       Borrowings, also known as leverage, magnify the potential for loss on investments in our indebtedness and gain or loss on investments in our equity capital. As we use
leverage to partially finance our investments, you will experience increased risks of investing in our securities. We, through the Funds, issue debt securities guaranteed by the
SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the

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SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our securities holders. We may also borrow from banks and other lenders, including
under our Credit Facility, and may issue debt securities or enter into other types of borrowing arrangements in the future. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations — Liquidity and Capital Resources — Capital Resources" for a discussion regarding our outstanding indebtedness. If the value
of our assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any decrease
in our income would cause net investment income to decline more sharply than it would have had we not leveraged our business. Such a decline could negatively affect our
ability to pay common stock dividends, scheduled debt payments or other payments related to our securities. Use of leverage is generally considered a speculative investment
technique.

       As of December 31, 2019, we, through the Funds, had $311.8 million of outstanding indebtedness guaranteed by the SBA, which had a weighted-average annualized
interest cost of approximately 3.6%. The debentures guaranteed by the SBA have a maturity of ten years, with a current weighted-average remaining maturity of 5.1 years as of
December 31, 2019, and require semiannual payments of interest. We will need to generate sufficient cash flow to make required interest payments on the debentures. If we are
unable to meet the financial obligations under the debentures, the SBA, as a creditor, will have a superior claim to the assets of the Funds over our securities holders in the event
we liquidate or the SBA exercises its remedies under such debentures as the result of a default by us.

       In addition, as of December 31, 2019, we had $300.0 million outstanding under our Credit Facility. Borrowings under the Credit Facility bear interest, subject to our
election, on a per annum basis at a rate equal to the applicable LIBOR rate (1.8% as of December 31, 2019) plus (i) 1.875% (or the applicable base rate (Prime Rate of 4.75% as
of December 31, 2019) plus 0.875%), as long as we meet certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate
plus 1.0%) otherwise. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. If we are unable to meet the financial
obligations under the Credit Facility, the Credit Facility lending group will have a superior claim to the assets of MSCC and its subsidiaries (excluding the assets of the Funds)
over our stockholders in the event we liquidate or the lending group exercises its remedies under the Credit Facility as the result of a default by us.

       In November 2017, we issued $185.0 million in aggregate principal amount of 4.50% unsecured notes due 2022 (the "4.50% Notes due 2022") at an issue price of 99.16%.
As of December 31, 2019, the outstanding balance of the 4.50% Notes due 2022 was $185.0 million. The 4.50% Notes due 2022 are unsecured obligations and rank pari passu
with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022; effectively
subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit
Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of
the Funds. The 4.50% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole or in part at any time at our option subject to certain make-whole
provisions.

       In April 2019, we issued $250.0 million in aggregate principal amount of 5.20% unsecured Notes due 2024 (the "5.20% Notes" and, together with the 4.50% Notes due
2022, the "Notes") at an issue price of 99.125%. Subsequently, in December 2019, Main Street issued an additional $75.0 million of the 5.20% Notes at an issue price of
105.0%. As of December 31, 2019, the outstanding balance of the 5.20% Notes was $325.0 million. The 5.20% Notes issued in December 2019 have identical terms as, and are
a part of a single series with, the 5.20% Notes issued in April 2019. The aggregate net proceeds from the 5.20% Notes issuances were used to repay a portion of the borrowings
outstanding under the Credit Facility. The 5.20% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our
future indebtedness that expressly provides it is subordinated to the 5.20% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of
the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other
obligations of any of our subsidiaries, including

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without limitation, the indebtedness of the Funds. The 5.20% Notes mature on May 1, 2024, and may be redeemed in whole or in part at any time at our option subject to certain
make-whole provisions.

       Illustration.    The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of
expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below.

Assumed Return on Our Portfolio(1)
(net of expenses) 

Corresponding net return to common stockholder(2)

(10.0)%  
  (20.8)% 

(5.0)%  
  (12.0)% 

0.0%  
  (3.1)% 

5.0%  
  5.7% 

10.0%  
  14.5% 

(1)

(2)

Assumes $2,711.5 million in total assets, $1,121.8 million in debt outstanding, $1,536.4 million in net assets, and a weighted-average interest rate
of 4.3%. Actual interest payments may be different. 

In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2019 total assets of at
least 1.8%.

       Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms by issuing debentures guaranteed by the
SBA through the Funds, by borrowing from banks or insurance companies or by issuing other debt securities and there can be no assurance that such additional leverage can in
fact be achieved.

All of our assets are subject to security interests under our secured Credit Facility or subject to a superior claim over our stockholders by the SBA and if we default
on our obligations under the Credit Facility or with respect to our SBA-guaranteed debentures, we may suffer adverse consequences, including foreclosure on our
assets.

       Substantially all of our assets are currently pledged as collateral under our Credit Facility or are subject to a superior claim over our stockholders by the SBA. If we default
on our obligations under the Credit Facility or our SBA-guaranteed debentures, the lenders and/or the SBA may have the right to foreclose upon and sell, or otherwise transfer,
the collateral subject to their security interests or their superior claim. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings
in order to avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could
significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new
investment activities and lower or eliminate the dividends that we have historically paid to our stockholders. In addition, if the lenders exercise their right to sell the assets
pledged under our Credit Facility, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after
repayment of the amounts outstanding under the Credit Facility.

Previously enacted legislation may allow us to incur additional leverage.

       The 1940 Act generally prohibits us from incurring indebtedness unless immediately after such borrowing we have an asset coverage for total borrowings of at least 200%
(i.e., the amount of debt may not exceed 50% of the value of our assets). However, legislation passed in March 2018 modified the 1940 Act by allowing a BDC to increase the
maximum amount of leverage it may incur by lowering the required asset coverage ratio of 200% to an asset coverage ratio of 150% (i.e., the amount of debt may not exceed
662/3% of the value of our assets), if certain requirements are met. Under the legislation, we are allowed to increase our leverage capacity if stockholders representing at least a
majority of the votes cast, when a quorum is met, approve a proposal to do so. If we receive stockholder approval, we would be allowed to increase our leverage capacity on the
first day after such approval. Alternatively, the legislation allows a "required majority" (as defined in Section 57(o) of the 1940 Act) of the members of our board of directors to
approve an increase in

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our leverage capacity, and such approval would become effective after one year from the date of approval. In either case, we would be required to make certain disclosures on
our website and in SEC filings regarding, among other things, the receipt of approval to increase our leverage, our leverage capacity and usage, and risks related to leverage. As
a result of this legislation, we may be able to increase our leverage up to an amount that reduces our asset coverage ratio from 200% to 150% (i.e., the amount of debt may not
exceed 662/3% of the value of our assets). See "Risk Factors — Risks Relating to Our Business and Structure — Because we borrow money, the potential for gain or loss on
amounts invested in us is magnified and may increase the risk of investing in us" for a discussion of the risks associated with leverage.

Further downgrades of the U.S. credit rating, automatic spending cuts or another government shutdown could negatively impact our liquidity, financial condition
and earnings.

       Recent U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns, or a recession in the
U.S. Although U.S. lawmakers passed legislation to raise the federal debt ceiling on multiple occasions, ratings agencies have lowered or threatened to lower the long-term
sovereign credit rating on the United States. The impact of this or any further downgrades to the U.S. government's sovereign credit rating or its perceived creditworthiness
could adversely affect the U.S. and global financial markets and economic conditions. Absent further quantitative easing by the Federal Reserve, these developments could
cause interest rates and borrowing costs to rise, which may negatively impact our ability to access the debt markets on favorable terms. In addition, disagreement over the federal
budget has caused the U.S. federal government to shut down for periods of time. Continued adverse political and economic conditions could have a material adverse effect on
our business, financial condition and results of operations.

The interest rates of our floating-rate loans to our portfolio companies and for any of our borrowings that extend beyond 2021 might be subject to change based on
recent regulatory changes

       LIBOR is the basic rate of interest used in lending transactions between banks on the London interbank market and is widely used as a reference for setting the interest rate
on loans globally. We typically use LIBOR as a reference rate in floating rate loans we extend to portfolio companies such that the interest due to us pursuant to a term loan
extended to a portfolio company is calculated using LIBOR and we use LIBOR as a reference rate in connection with our Credit Facility. The terms of our debt investments
generally include minimum interest rate floors which are calculated based on LIBOR.

       On July 27, 2017, the United Kingdom's Financial Conduct Authority, which regulates LIBOR, announced that it intends to phase out LIBOR by the end of 2021. It is
unclear if at that time whether LIBOR will cease to exist or if new methods of calculating LIBOR will be established such that it continues to exist after 2021. As such, the
potential effect of any such event on our net investment income cannot yet be determined. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates
Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate ("SOFR") as its preferred alternative rate
for LIBOR. SOFR is a measure of the cost of borrowing cash overnight, collateralized by U.S. Treasury securities, and is based on directly observable U.S. Treasury-based
repurchase transactions. Although SOFR appears to be the preferred replacement rate for U.S. dollar LIBOR, at this time, it is not possible to predict whether SOFR will attain
market traction as a LIBOR replacement tool or the effect of any such changes as the establishment of alternative reference rates or other reforms to LIBOR may be enacted in
the United States, United Kingdom or elsewhere. If LIBOR ceases to exist, we may need to renegotiate the credit agreements extending beyond 2021 with our portfolio
companies that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with the new standard that is established. In addition, any further changes or reforms
to the determination or supervision of LIBOR may result in a sudden or prolonged increase or decrease in reported LIBOR, which could have an adverse impact on the market
value for or value of any LIBOR-linked securities, loans and other financial obligations or extensions of credit held by or due to us and could have a material adverse effect on
our business, financial condition, tax position and results of operations.

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We may experience fluctuations in our operating results.

       We could experience fluctuations in our operating results due to a number of factors, including our ability or inability to make investments in companies that meet our
investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the level of our expenses, variations in and the
timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result
of these factors, operating results for any period should not be relied upon as being indicative of performance in future periods.

Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse.

       Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder
approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, net asset value, operating
results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt
instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us.

We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code.

       To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements:

•

•

•

The Annual Distribution Requirement for a RIC will be satisfied if we distribute to our stockholders on an annual basis at least 90% of our net ordinary
taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. Depending on the level of taxable
income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4%
U.S. federal excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax
return related to the year which generated such taxable income. For more information regarding tax treatment, see "Business — Regulation — Taxation
as a Regulated Investment Company." Because we use debt financing, we are subject to certain asset coverage ratio requirements under the 1940 Act and
are (and may in the future become) subject to certain financial covenants under loan and credit agreements that could, under certain circumstances,
restrict us from making distributions necessary to satisfy the distribution requirement. In addition, because we receive non-cash sources of income such as
PIK interest which involves us recognizing taxable income without receiving the cash representing such income, we may have difficulty meeting the
distribution requirement. If we are unable to obtain cash from other sources, we could fail to qualify for RIC tax treatment and thus become subject to
corporate-level U.S. federal income tax. 

The source-of-income requirement will be satisfied if we obtain at least 90% of our gross income for each year from distributions, interest, gains from
the sale of stock or securities or similar sources. 

The asset diversification requirement will be satisfied if we meet certain asset diversification requirements at the end of each quarter of our taxable year.
To satisfy this requirement, at least 50% of the value of our assets must consist of cash, cash equivalents, U.S. government securities, securities of other
RICs, and other acceptable securities; and no more than 25% of the value of our assets can be invested in the securities, other than U.S. government
securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us
and that are engaged in the same or similar or related trades or businesses or (iii) of certain "qualified publicly traded partnerships."

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       Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our
investments are in privately held companies, and therefore illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses.
Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets,
the amount of income available for distribution and the amount of our distributions.

We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be
a return of capital, which is a distribution of the stockholders' invested capital.

       We intend to pay distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will
allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay
distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset
coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on
our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, compliance with our debt covenants, each of the Funds'
compliance with applicable SBIC regulations and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay
distributions to our stockholders in the future.

       When we make distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated taxable earnings, recognized
capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for U.S. federal income tax purposes, which may
result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load
and offering expenses associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.

We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash
representing such income.

       We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants
in connection with the origination of a loan such that ascribing a value to the warrants creates original issue discount in the debt instrument, if we invest in a debt investment at a
discount to the par value of the debt security or possibly in other circumstances; (ii) contractual payment-in-kind, or PIK, interest, which represents contractual interest added to
the loan balance and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stock and due at the end
of the preferred stock term, subject to adequate profitability at the portfolio company; or (iv) amortization of market discount, which is associated with loans purchased in the
secondary market at a discount to par value. Such amortization of original issue discounts, increases in loan balances as a result of contractual PIK arrangements, cumulative
preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in
income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to
investments generating income which must be paid in cash on a current basis. For the year ended December 31, 2019, (i) approximately 2.0% of our total investment income
was attributable to PIK income not paid currently in cash, (ii) approximately 0.5% of our total investment income was attributable to amortization of original issue discount,
(iii) approximately 1.0% of our total investment income was attributable to cumulative dividend income not paid currently in cash, and (iv) approximately 2.2% of our

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total investment income was attributable to amortization of market discount on loans purchased in the secondary market at a discount.

       Since, in certain cases, we may recognize taxable income before or without receiving cash representing such income, we may have difficulty meeting the Annual
Distribution Requirement necessary to maintain RIC tax treatment under the Code. Accordingly, we may have to sell some of our investments at times and/or at prices we
would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for this purpose. If we are not able to obtain cash from other
sources, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax. For additional discussion regarding the tax
implications of a RIC, please see "Business — Regulation — Taxation as a Regulated Investment Company."

We may in the future choose to pay dividends in our own stock, in which case you may be required to pay tax in excess of the cash you receive.

       We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions
payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance
providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided
that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include
the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend) to the extent of our
current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in
excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in
income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required
to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our
stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

Each of the Funds, as an SBIC, may be unable to make distributions to us that will enable us to meet or maintain RIC status, which could result in the imposition
of an entity-level tax.

       In order for us to continue to qualify for RIC tax treatment and to minimize corporate-level U.S. federal taxes, we will be required to distribute substantially all of our net
ordinary taxable income and net capital gain income, including taxable income from certain of our subsidiaries, which includes the income from the Funds. We will be partially
dependent on the Funds for cash distributions to enable us to meet the RIC distribution requirements. The Funds may be limited by SBIC regulations from making certain
distributions to us that may be necessary to enable us to maintain our status as a RIC. We may have to request a waiver of the SBA's restrictions for the Funds to make certain
distributions to maintain our eligibility for RIC status. We cannot assure you that the SBA will grant such waiver and if the Funds are unable to obtain a waiver, compliance
with the SBIC regulations may result in loss of RIC tax treatment and a consequent imposition of an entity-level tax on us.

Because we intend to distribute substantially all of our taxable income to our stockholders to maintain our status as a RIC, we will continue to need additional
capital to finance our growth, and regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital and
make distributions.

       In order to satisfy the requirements applicable to a RIC and to minimize corporate-level U.S. federal taxes, we intend to distribute to our stockholders substantially all of our
net ordinary taxable income and net

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capital gain income. We may carry forward excess undistributed taxable income into the next year. Any such carryover taxable income must be distributed through a dividend
declared prior to filing the final tax return related to the year which generated such taxable income. As a BDC, we generally are required to meet an asset coverage ratio, as
defined in the 1940 Act, of at least 200% (or 150% if certain requirements are met) immediately after each issuance of senior securities. This requirement limits the amount that
we may borrow and may prohibit us from making distributions. Because we will continue to need capital to grow our Investment Portfolio, this limitation may prevent us from
incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so.

       While we expect to be able to borrow and to issue additional debt and equity securities, we cannot assure you that debt and equity financing will be available to us on
favorable terms, or at all. In addition, as a BDC, we generally are not permitted to issue equity securities priced below net asset value without stockholder approval. If additional
funds are not available to us, we could be forced to curtail or cease new investment activities, and our net asset value could decline.

Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our
common stock or issue securities to subscribe to, convert to or purchase shares of our common stock.

       The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such
exception is prior stockholder approval of issuances below net asset value provided that our Board of Directors makes certain determinations. We did not seek stockholder
authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2019 annual meeting of stockholders because our
common stock price per share had been trading significantly above the net asset value per share of our common stock since 2011. We may, however, seek such authorization at
future annual or special meetings of stockholders. Our stockholders have previously approved a proposal to authorize us to issue securities to subscribe to, convert to, or
purchase shares of our common stock in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our
common stock or securities to subscribe to, convert to, or purchase shares of our common stock would be subject to the determination by our Board of Directors that such
issuance is in our and our stockholders' best interests.

       If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution
would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in a
stockholder's interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. In addition, if we issue securities to
subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common
stock. Any such exercise would be dilutive on the voting power of existing stockholders, and could be dilutive with regard to dividends and our net asset value, and other
economic aspects of the common stock.

       Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted;
however, the example below illustrates the effect of dilution to existing stockholders resulting from the sale of common stock at prices below the net asset value of such shares.

       Illustration: Example of Dilutive Effect of the Issuance of Shares Below Net Asset Value.     Assume that Company XYZ has 1,000,000 total shares outstanding,
$15,000,000 in total assets and $5,000,000 in total liabilities. The net asset value per share of the common stock of Company XYZ is $10.00. The following table
illustrates the reduction to net asset value, or NAV, and the dilution experienced by Stockholder A

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following the sale of 40,000 shares of the common stock of Company XYZ at $9.50 per share, a price below its NAV per share.

Reduction to NAV
Total Shares Outstanding
NAV per share
Dilution to Existing Stockholder
Shares Held by Stockholder A
Percentage Held by Stockholder A
Total Interest of Stockholder A in NAV

Prior to Sale
Below NAV  

Following Sale
Below NAV

Percentage
Change

  1,000,000 

  $

10.00  $

1,040,000 
9.98 

10,000 
1.00% 
100,000  $

10,000(1)
0.96% 
99,808 

  $

4.0% 
(0.2)% 

0.0% 
(3.8)% 
(0.2)% 

(1)

Assumes that Stockholder A does not purchase additional shares in the sale of shares below NAV.

Failure to comply with applicable laws or regulations and changes in laws or regulations governing our operations may adversely affect our business or cause us to
alter our business strategy.

       We, the Funds, and our portfolio companies are subject to applicable local, state and federal laws and regulations. Failure to comply with any applicable local, state or
federal law or regulation could negatively impact our reputation and our business results. New legislation may also be enacted or new interpretations, rulings or regulations
could be adopted, including those governing the types of investments we are permitted to make, any of which could harm us and our stockholders, potentially with retroactive
effect. In addition, any change to the SBA's current debenture SBIC program could have a significant impact on our ability to obtain lower-cost leverage through the Funds, and
therefore, our ability to compete with other finance companies.

       Additionally, any changes to the laws and regulations governing our operations relating to permitted investments may cause us to alter our investment strategy in order to
avail ourselves of new or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may result in our investment
focus shifting from the areas of expertise of our investment team to other types of investments in which our investment team may have less expertise or little or no experience.
Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.

The Tax Cuts and Jobs Act could have a negative effect on us, our subsidiaries, our portfolio companies and the holders of our securities.

       In December 2017, President Trump signed into law significant tax reform legislation (commonly referred to as the "Tax Cuts and Jobs Act"). The Tax Cuts and Jobs Act
made significant changes to the U.S. federal income tax rules applicable to both individuals and entities, including corporations. The Tax Cuts and Jobs Act included provisions
that, among other things, reduced the U.S. corporate tax rate, introduced a capital investment deduction, limited the interest deduction, limited the use of net operating losses to
offset future taxable income and made extensive changes to the U.S. international tax system. The effects of the various provisions of the Tax Cuts and Jobs Act listed above on
the respective positions of us, our stockholders and our portfolio companies may be material and depend on the factual circumstances of each, over time. In addition, Treasury
and the Internal Revenue Service continue to release guidance in the form of regulations providing rules for implementation and interpretation of the Tax Cuts and Jobs Act
provisions. Uncertainty remains regarding provisions of the Tax Cuts and Jobs Act while some of the Treasury regulations and guidance remain in proposed form. Accordingly,
we cannot predict any additional future impact the enactment of such legislation will have on us, our subsidiaries, our portfolio companies and the holders of our securities.

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Terrorist attacks, acts of war, public health crises or natural disasters may affect any market for our securities, impact the businesses in which we invest and harm
our business, operating results and financial condition.

       Terrorist acts, acts of war, public health crises (including the recent coronavirus outbreak) or natural disasters may disrupt our operations, as well as the operations of the
businesses in which we invest. Such acts have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future
terrorist activities, military or security operations, public health crises, or natural disasters could further weaken the domestic/global economies and create additional
uncertainties, which may negatively impact the businesses in which we invest directly or indirectly and, in turn, could have a material adverse impact on our business, operating
results and financial condition. Losses from terrorist attacks, public health crises and natural disasters are generally uninsurable.

We are highly dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect the market
price of our common stock and our ability to pay dividends.

       Our business is highly dependent on our and third parties' communications and information systems. Any failure or interruption of those systems, including as a result of
the termination of an agreement with any third-party service providers, could cause delays or other problems in our activities. Our financial, accounting, data processing, backup
or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or
partially beyond our control and adversely affect our business. There could be:

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•

sudden electrical or telecommunications outages; 

natural disasters such as earthquakes, tornadoes and hurricanes; 

events arising from local or larger scale political or social matters, including terrorist acts; and 

cyber attacks.

The failure in cyber security systems, as well as the occurrence of events unanticipated in our disaster recovery systems and management continuity planning could
impair our ability to conduct business effectively.

       The occurrence of a disaster such as a cyber-attack, a natural catastrophe, an industrial accident, a terrorist attack or war, events unanticipated in our disaster recovery
systems, or a support failure from external providers, could have an adverse effect on our ability to conduct business and on our results of operations and financial condition,
particularly if those events affect our computer-based data processing, transmission, storage, and retrieval systems or destroy data. If a significant number of our managers were
unavailable in the event of a disaster, our ability to effectively conduct our business could be severely compromised.

       We depend heavily upon computer systems to perform necessary business functions. Despite our implementation of a variety of security measures, our computer systems
could be subject to cyber-attacks and unauthorized access, such as physical and electronic break-ins or unauthorized tampering. Like other companies, we may experience
threats to our data and systems, including malware and computer virus attacks, unauthorized access, system failures and disruptions. If one or more of these events occurs, it
could potentially jeopardize the confidential, proprietary and other information processed and stored in, and transmitted through, our computer systems and networks, or
otherwise cause interruptions or malfunctions in our operations, which could result in damage to our reputation, financial losses, litigation, increased costs, regulatory penalties
and/or customer dissatisfaction or loss.

       Third parties with which we do business (including, but not limited to, service providers, such as accountants, custodians, transfer agents and administrators, and the issuers
of securities in which we invest)

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may also be sources or targets of cyber security or other technological risks. While we engage in actions to reduce our exposure resulting from outsourcing, we cannot control
the cyber security plans and systems put in place by these third parties and ongoing threats may result in unauthorized access, loss, exposure or destruction of data, or other
cybersecurity incidents, with increased costs and other consequences, including those described above. Privacy and information security laws and regulation changes, and
compliance with those changes, may also result in cost increases due to system changes and the development of new administrative processes.

We are subject to risks related to corporate social responsibility.

       Our business faces increasing public scrutiny related to environmental, social and governance ("ESG") activities. We risk damage to our brand and reputation if we fail to
act responsibly in a number of areas, such as diversity and inclusion, environmental stewardship, support for local communities, corporate governance and transparency and
considering ESG factors in our investment processes. Adverse incidents with respect to ESG activities could impact the value of our brand, the cost of our operations and
relationships with investors, all of which could adversely affect our business and results of operations. Additionally, new regulatory initiatives related to ESG could adversely
affect our business.

RISKS RELATED TO OUR INVESTMENTS

Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment.

       Investing in our portfolio companies exposes us indirectly to a number of significant risks. Among other things, these companies:

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may have limited financial resources and may be unable to meet their obligations under their debt instruments that we hold, which may be accompanied
by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees from subsidiaries or affiliates of our
portfolio companies that we may have obtained in connection with our investment, as well as a corresponding decrease in the value of the equity
components of our investments; 

may have shorter operating histories, narrower product lines, smaller market shares and/or significant customer concentrations than larger businesses,
which tend to render them more vulnerable to competitors' actions and market conditions, as well as general economic downturns; 

are more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation, termination or
significant under-performance of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us; 

generally have less predictable operating results, may from time to time be parties to litigation, may be engaged in rapidly changing businesses with
products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or
maintain their competitive position; and 

generally have less publicly available information about their businesses, operations and financial condition. We are required to rely on the ability of our
management team and investment professionals to obtain adequate information to evaluate the potential returns from investing in these companies. If we
are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and may lose all or part of
our investment.

       In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on
the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be

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named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of
management time and resources.

A decline in oil and natural gas prices could have a material adverse effect on us.

       A decline in oil and natural gas prices could adversely affect (i) the credit quality of our debt investments and (ii) the underlying operating performance of our equity
investments in energy-related businesses and in portfolio companies located in geographic areas which are more sensitive to the health of the oil and gas industries. A decrease
in credit quality and the operating performance would, in turn, negatively affect the fair value of these investments, which would consequently negatively affect our net asset
value. Should a decline in oil and natural gas prices persist for an extended period of time, it is likely that the ability of these investments to satisfy financial or operating
covenants imposed by us or other lenders will be adversely affected, thereby negatively impacting their financial condition and their ability to satisfy their debt service and other
obligations to us. Likewise, should a decline in oil and natural gas prices persist, it is likely that our energy-related portfolio companies' and other affected companies' cash flow
and profit generating capacities would also be adversely affected thereby negatively impacting their ability to pay us dividends or distributions on our equity investments.

We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest.

       Our investments may include original issue discount and contractual PIK interest, which represents contractual interest added to a loan balance and due at the end of such
loan's term. To the extent original issue discount or PIK interest constitute a portion of our income, we are exposed to typical risks associated with such income being required
to be included in taxable and accounting income prior to receipt of cash, including the following:

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original issue discount and PIK instruments may have higher yields, which reflect the payment deferral and credit risk associated with these instruments; 

for accounting purposes, cash distributions to investors representing original issue discount income are not derived from paid in capital, although they
may be effectively paid from any offering proceeds during any given period; thus, although the source for the cash used to pay a distribution of original
issue discount income may come from the cash invested by investors, the 1940 Act does not require that investors be given notice of this fact; 

original issue discount and PIK instruments may have unreliable valuations because their continuing accruals require continuing judgments about the
collectability of the deferred payments and the value of the collateral; and 

original issue discount and PIK instruments may represent a higher credit risk than coupon loans; even if the conditions for income accrual under
generally accepted accounting principles in the United States of America are satisfied, a borrower could still default when actual payment is due upon the
maturity of such loan.

The lack of liquidity in our investments may adversely affect our business.

       We invest in companies whose securities are not publicly traded, and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid
than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate
all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to
achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is
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such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price, and, as a result, we may suffer losses.

We may not have the funds or ability to make additional investments in our portfolio companies.

       We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon
from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a
warrant to purchase equity securities, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on
investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may have a negative impact on a portfolio company in
need of such an investment, may result in a missed opportunity for us to increase our participation in a successful operation, may reduce our ability to protect an existing
investment or may reduce the expected yield on the investment.

Our portfolio companies may incur debt that ranks equally with, or senior to, our investments in such companies.

       We invest primarily in the secured term debt of LMM, Private Loan and Middle Market companies and equity issued by LMM companies. Our portfolio companies may
have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to
receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the
event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio
company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have
any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal
basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio
company.

There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

       Even though we may have structured certain of our investments as secured loans, if one of our portfolio companies were to go bankrupt, depending on the facts and
circumstances, and based upon principles of equitable subordination as defined by existing case law, a bankruptcy court could subordinate all or a portion of our claim to that of
other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable subordination defined by case law have generally
indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investment and the senior lender
has actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a
borrower's business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender liability claim, including as a result of
actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.

Second priority liens on collateral securing loans that we make to our portfolio companies may be subject to control by senior creditors with first priority liens. If
there is a default, the value of the collateral may not be sufficient to repay in full both the first priority creditors and us.

       Certain loans that we make are secured by a second priority security interest in the same collateral pledged by a portfolio company to secure senior debt owed by the
portfolio company to commercial banks or other traditional lenders. Often the senior lender has procured covenants from the portfolio company

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prohibiting the incurrence of additional secured debt without the senior lender's consent. Prior to and as a condition of permitting the portfolio company to borrow money from
us secured by the same collateral pledged to the senior lender, the senior lender will require assurances that it will control the disposition of any collateral in the event of
bankruptcy or other default. In many such cases, the senior lender will require us to enter into an "intercreditor agreement" prior to permitting the portfolio company to borrow
from us. Typically the intercreditor agreements we are requested to execute expressly subordinate our debt instruments to those held by the senior lender and further provide
that the senior lender shall control: (1) the commencement of foreclosure or other proceedings to liquidate and collect on the collateral; (2) the nature, timing and conduct of
foreclosure or other collection proceedings; (3) the amendment of any collateral document; (4) the release of the security interests in respect of any collateral; and (5) the waiver
of defaults under any security agreement. Because of the control we may cede to senior lenders under intercreditor agreements we may enter, we may be unable to realize the
proceeds of any collateral securing some of our loans.

       Finally, the value of the collateral securing our debt investment will ultimately depend on market and economic conditions, the availability of buyers and other factors.
Therefore, there can be no assurance that the proceeds, if any, from the sale or sales of all of the collateral would be sufficient to satisfy the loan obligations secured by our first
or second priority liens. There is also a risk that such collateral securing our investments will decrease in value over time, will be difficult to sell in a timely manner, will be
difficult to appraise and will fluctuate in value based upon the success of the portfolio company and market conditions. If such proceeds are not sufficient to repay amounts
outstanding under the loan obligations secured by our second priority liens, then we, to the extent not repaid from the proceeds of the sale of the collateral, will only have an
unsecured claim against the company's remaining assets, if any.

We are a non-diversified investment company within the meaning of the 1940 Act, and therefore we are not limited with respect to the proportion of our assets that
may be invested in securities of a single issuer.

       We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the
proportion of our assets that we may invest in securities of a single issuer. To the extent that we assume large positions in the securities of a small number of issuers, our net
asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market's assessment of the
issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification
requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies. See "Risk Factors — Risks
Relating to Our Business and Structure — We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code."

We generally will not control our portfolio companies.

       We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation
rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business
decisions with which we disagree and the management of such company will take risks or otherwise act in ways that do not serve our interests as debt investors or minority
equity holders. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as
we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.

Defaults by our portfolio companies will harm our operating results.

       A portfolio company's failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and,
potentially, termination of its loans and

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foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company's ability to meet its obligations under the debt or
equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain
financial covenants, with a defaulting portfolio company.

Any unrealized depreciation we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for
distribution.

       As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith by our Board of
Directors. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our portfolio could be an
indication of a portfolio company's inability to meet its repayment obligations to us with respect to affected loans or a potential impairment of the value of affected equity
investments. This could result in realized losses in the future and ultimately in reductions of our income and gains available for distribution in future periods.

Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity.

       We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these
proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than
the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields
than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts
owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our securities.

Changes in interest rates may affect our cost of capital, net investment income and value of our investments.

       Some of our debt investments will bear interest at variable rates and may be negatively affected by changes in market interest rates. An increase in market interest rates
would increase the interest costs and reduce the cash flows of our portfolio companies that have variable rate debt instruments, a situation which could reduce the value of the
investment. The value of our investments could also be reduced from an increase in market interest rates as rates available to investors could make an investment in our
securities less attractive than alternative investments. In addition, an increase in interest rates would make it more expensive for us to use debt to finance our investments. As a
result, a significant increase in market interest rates could increase our cost of capital, which would reduce our net investment income. Conversely, decreases in market interest
rates could negatively impact the interest income from our variable rate debt investments. A decrease in market interest rates may also have an adverse impact on our returns by
requiring us to accept lower yields on our debt investments and by increasing the risk that our portfolio companies will prepay our debt investments, resulting in the need to
redeploy capital at potentially lower rates. See further discussion and analysis at "Item 7A. Quantitative and Qualitative Disclosures about Market Risk".

We may not realize gains from our equity investments.

       Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number
of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions.
Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time
to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity
interests we receive may not appreciate in value and,

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in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity
interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such
as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right
to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these put rights for the consideration provided in our investment
documents if the issuer is in financial distress.

Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments.

       Our investment strategy contemplates potential investments in debt securities of foreign companies. Investing in foreign companies may expose us to additional risks not
typically associated with investing in securities of U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation,
imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of
exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater
price volatility.

       Although most of our investments will be U.S. dollar denominated, any investments denominated in a foreign currency will be subject to the risk that the value of a
particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest
rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments.

RISKS RELATING TO OUR SECURITIES

Shares of closed-end investment companies, including BDCs, may trade at a discount to their net asset value.

       Shares of closed-end investment companies, including BDCs, may trade at a discount to net asset value. This characteristic of closed-end investment companies and BDCs
is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade at, above or below net asset value.
In addition, if our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our
stockholders approve such a sale and our Board of Directors makes certain determinations. See "Risk Factors — Risks Relating to Our Business and Structure — Stockholders
may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue
securities to subscribe to, convert to or purchase shares of our common stock" for a discussion related to us issuing shares of our common stock below net asset value.

We may be unable to invest a significant portion of the net proceeds from an offering or from exiting an investment or other capital on acceptable terms, which
could harm our financial condition and operating results.

       Delays in investing the net proceeds raised in an offering or other capital raised or proceeds resulting from exiting an investment may cause our performance to be worse
than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify any
investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of any offering
or other capital raised or proceeds resulting from exiting an investment on acceptable terms within the time period that we anticipate or at all, which could harm our financial
condition and operating results.

       We anticipate that, depending on market conditions and the amount of the capital, it may take us a substantial period of time to invest substantially all the capital in
securities meeting our investment objective.

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During this period, we may invest the capital primarily in marketable securities and idle funds investments, which generally consist of debt investments, independently rated
debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments and may produce returns that are
significantly lower than the returns which we expect to achieve when our portfolio is fully invested in securities meeting our investment objective. Most of the debt investments
that meet our investment criteria are, or would be if rated, below investment grade quality. Indebtedness of below investment grade quality, which is often referred to as "junk,"
is regarded as having predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal. As a result, any distributions that we pay
during such period may be substantially lower than the distributions that we may be able to pay when our portfolio is fully invested in securities meeting our investment
objective. In addition, until such time as the net proceeds of any offering or from exiting an investment or other capital are invested in new securities meeting our investment
objective, the market price for our securities may decline. Thus, the initial return on your investment may be lower than when, if ever, our portfolio is fully invested in securities
meeting our investment objective.

Investing in our securities may involve a high degree of risk.

       The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of
volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for
someone with lower risk tolerance.

The market price of our securities may be volatile and fluctuate significantly.

       Fluctuations in the trading prices of our securities may adversely affect the liquidity of the trading market for our securities and, if we seek to raise capital through future
securities offerings, our ability to raise such capital. The market price and liquidity of the market for our securities may be significantly affected by numerous factors, some of
which are beyond our control and may not be directly related to our operating performance. These factors include:

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significant volatility in the market price and trading volume of securities of BDCs or other companies in our sector, which are not necessarily related to
the operating performance of these companies; 

changes in regulatory policies, accounting pronouncements or tax guidelines, particularly with respect to RICs, BDCs or SBICs; 

the exclusion of BDC common stock from certain market indices, such as what happened with respect to the Russell indices and the Standard and Poor's
indices, could reduce the ability of certain investment funds to own our common stock and limit the number of owners of our common stock and
otherwise negatively impact the market price of our common stock; 

inability to obtain any exemptive relief that may be required by us in the future from the SEC; 

loss of our BDC or RIC status or any of the Funds' status as an SBIC; 

changes in our earnings or variations in our operating results; 

changes in the value of our portfolio of investments; 

any shortfall in our investment income or net investment income or any increase in losses from levels expected by investors or securities analysts; 

loss of a major funding source; 

fluctuations in interest rates; 

the operating performance of companies comparable to us; 

departure of our key personnel; 

proposed, or completed, offerings of our securities, including classes other than our common stock;

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global or national credit market changes; and 

general economic trends and other external factors.

Provisions of the Maryland General Corporation Law and our articles of incorporation and bylaws could deter takeover attempts and have an adverse impact on the
price of our common stock.

       The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making
difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative impact on the
price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our
common stock.

The Notes are unsecured and therefore effectively subordinated to any current or future secured indebtedness, including indebtedness under the Credit Facility.

       The Notes are not secured by any of our assets or any of the assets of our subsidiaries and rank equally in right of payment with all of our existing and future
unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may
incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In
any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our
subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay
other creditors, including the holders of the Notes. As of December 31, 2019, we had $300.0 million outstanding under the Credit Facility out of $705.0 million in
commitments. The indebtedness under the Credit Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.

The Notes are structurally subordinated to the indebtedness and other liabilities of our subsidiaries.

       The Notes are obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the
Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. In addition, several of our subsidiaries, specifically the Funds, maintain
significant indebtedness and as a result the Notes are structurally subordinated to the indebtedness of these subsidiaries. For example, as of December 31, 2019, the Funds had
collectively issued $311.8 million of the current regulatory maximum of $350.0 million of SBA-guaranteed debentures, which are included in our consolidated financial
statements. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See "Management's Discussion and
Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources" for more detail on the SBA-guaranteed debentures.

       Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries have priority over our equity interests
in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a
creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any
indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes are structurally subordinated to all indebtedness, including the SBA-
guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur
substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.

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The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained.

       The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained. If the Notes are traded, they may
trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other
relevant factors. Accordingly, we cannot assure you that a liquid trading market has been or will develop for the Notes, that you will be able to sell your Notes at a particular
time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop or is not maintained, the liquidity and trading price for
the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

A downgrade, suspension or withdrawal of the credit rating assigned by a rating agency to us or the Notes, if any, or change in the debt markets could cause the
liquidity or market value of the Notes to decline significantly.

       Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will
generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings
are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. We undertake no
obligation to maintain our credit ratings or to advise holders of Notes of any changes in our credit ratings. The Notes are currently rated by Standard & Poor's Ratings Services.
There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating
agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. The conditions of the financial
markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, which could have an adverse effect on the market prices of the Notes.

The indentures under which the Notes were issued contain limited protection for holders of the Notes.

       The indentures under which the Notes were issued offer limited protection to holders of the Notes. The terms of the indentures and the Notes do not restrict our or any of
our subsidiaries' ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on investments in
the Notes. In particular, the terms of the indentures and the Notes do not place any restrictions on our or our subsidiaries' ability to:

•

•

issue securities or otherwise incur additional indebtedness or other obligations, including (1) any indebtedness or other obligations that would be equal in
right of payment to the Notes, (2) any indebtedness or other obligations that would be secured and therefore rank effectively senior in right of payment to
the Notes to the extent of the values of the assets securing such debt, (3) indebtedness of ours that is guaranteed by one or more of our subsidiaries and
which therefore is structurally senior to the Notes and (4) securities, indebtedness or obligations issued or incurred by our subsidiaries that would be
senior to our equity interests in our subsidiaries and therefore rank structurally senior to the Notes with respect to the assets of our subsidiaries, in each
case other than an incurrence of indebtedness or other obligation that would cause a violation of Section 18(a)(1)(A) as modified by Section 61(a)(1) of
the 1940 Act or any successor provisions, but giving effect, in each case, to any exemptive relief granted to us by the SEC (currently, this provision
generally prohibits us from making additional borrowings, including through the issuance of additional debt or the sale of additional debt securities,
unless our asset coverage, as defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) after such borrowings); 

pay dividends on, or purchase or redeem or make any payments in respect of, capital stock or other securities ranking junior in right of payment to the
Notes, including subordinated indebtedness;

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•

•

•

•

•

sell assets (other than certain limited restrictions on our ability to consolidate, merge or sell all or substantially all of our assets); 

enter into transactions with affiliates; 

create liens (including liens on the shares of our subsidiaries) or enter into sale and leaseback transactions; 

make investments; or 

create restrictions on the payment of dividends or other amounts to us from our subsidiaries.

       Furthermore, the terms of the indentures and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes)
in our financial condition, results of operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels
of net worth, revenues, income, cash flow or liquidity.

       Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you
as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.

       Other debt we issue or incur in the future could contain more protections for its holders than the indentures and the Notes, including additional covenants and events of
default. For example, the indentures under which the Notes are issued do not contain cross-default provisions like those that are contained in the Credit Facility. The issuance or
incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.

The optional redemption provision may materially adversely affect your return on the Notes.

       The Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. We may choose to redeem the Notes at times when
prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security
at an effective interest rate as high as the Notes being redeemed.

We may not be able to repurchase the Notes upon a Change of Control Repurchase Event.

       We may not be able to repurchase the Notes upon certain change in control events described in the indentures under which the Notes were issued (each, a "Change of
Control Repurchase Event") because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the Notes may require us to repurchase for cash
some or all of the Notes at a repurchase price equal to 100% of the aggregate principal amount of the Notes being repurchased, plus accrued and unpaid interest to, but not
including, the repurchase date. The terms of our Credit Facility provide that certain change of control events will constitute an event of default thereunder entitling the lenders to
accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. In addition, the occurrence of a Change of Control
Repurchase Event enabling the holders of the Notes to require the mandatory purchase of the Notes would constitute an event of default under our Credit Facility entitling the
lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. Our and our subsidiaries' future financing facilities
may contain similar restrictions and provisions. Our failure to purchase such tendered Notes upon the occurrence of such Change of Control Repurchase Event would cause an
event of default under the indentures governing the Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the
acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a Change of Control Repurchase Event were to occur, we may not have sufficient
funds to repay any such accelerated indebtedness.

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If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.

       As of December 31, 2019, we had approximately $1,121.8 million of principal indebtedness, including $300.0 million outstanding under the Credit Facility, $311.8 million
outstanding from SBA-guaranteed debentures, $185.0 million of the 4.50% Notes due 2022 and $325.0 million of the 5.20% Notes outstanding. Any default under the
agreements governing our indebtedness, including a default under the Credit Facility, under the Notes or under other indebtedness to which we may be a party that is not
waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest
on the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to
meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and
operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such
default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders
under the Credit Facility or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings
against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some extent, subject to general economic,
financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow
from operations, or that future borrowings will be available to us under the Credit Facility or otherwise, in an amount sufficient to enable us to meet our payment obligations
under the Notes and our other debt and to fund other liquidity needs.

       If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or
restructure our debt, including the Notes, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders
under the Credit Facility or the required holders of the Notes or other debt that we may incur in the future to avoid being in default. If we are unable to implement one or more
of these alternatives, we may not be able to meet our payment obligations under the Notes and our other debt. If we breach our covenants under the Credit Facility, the Notes or
other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under the Credit Facility,
the Notes or other debt, the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to
repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facility has, and any future credit facilities will likely
have, customary cross-default provisions, if the indebtedness under the Notes, the Credit Facility or under any future credit facility is accelerated, we may be unable to repay or
finance the amounts due.

We may in the future determine to issue preferred stock, which could adversely affect the market value of our common stock.

       The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock
could adversely affect the market price for our common stock by making an investment in the common stock less attractive. In addition, the dividends on any preferred stock we
issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take preference over any dividends or other payments to
our common stockholders, and holders of preferred stock are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in
excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the 1940 Act, preferred stock constitutes a "senior
security" for purposes of the asset coverage test.

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    Item 1B.    Unresolved Staff Comments 

       None.

    Item 2.    Properties 

       We do not own any real estate or other physical properties materially important to our operations. Currently, we lease office space in Houston, Texas for our corporate
headquarters.

    Item 3.    Legal Proceedings 

       We may, from time to time, be involved in litigation arising out of our operations in the normal course of business or otherwise. Furthermore, third parties may seek to
impose liability on us in connection with the activities of our portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with
certainty, we do not expect any current matters will materially affect our financial condition or results of operations; however, there can be no assurance whether any pending
legal proceedings will have a material adverse effect on our financial condition or results of operations in any future reporting period.

    Item 4.    Mine Safety Disclosures 

       Not applicable.

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    Item 5.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 

COMMON STOCK, HOLDERS AND DISTRIBUTIONS

       Our common stock is traded on the New York Stock Exchange ("NYSE") under the symbol "MAIN."

PART II 

       The following table sets forth, for the periods indicated, the range of high and low closing prices of our common stock as reported on the NYSE, and the sales price as a
percentage of the net asset value per share of our common stock.

Year ending December 31, 2020

First Quarter (through February 26,2020)

Year ending December 31, 2019

Fourth Quarter
Third Quarter
Second Quarter
First Quarter

Year ending December 31, 2018

Fourth Quarter
Third Quarter
Second Quarter
First Quarter

Price Range

  NAV(1)

High

Low

Premium of
High Sales
Price to
NAV(2)

Premium of
Low Sales
Price to
NAV(2)

        * $ 45.00  $ 39.25 

    *  

    *

  $ 23.91  $ 43.68  $ 41.27 
40.90 
37.49 
33.99 

44.34 
41.80 
39.21 

24.20 
24.17 
24.41 

  $ 24.09  $ 39.06  $ 32.58 
38.05 
36.76 
35.41 

24.69 
23.96 
23.67 

40.68 
38.86 
39.90 

83% 
83% 
73% 
61% 

62% 
65% 
62% 
69% 

73% 
69% 
55% 
39% 

35% 
54% 
53% 
50% 

(1)

(2)

Net asset value per share, or NAV, is determined as of the last day in the relevant quarter and therefore may not reflect the net asset value per share on
the date of the high and low closing prices. The net asset values shown are based on outstanding shares at the end of each period. Net asset value has
not yet been determined for the first quarter of 2020. 

Calculated for each quarter as (i) NAV subtracted from the respective high or low share price divided by (ii) NAV.

       On February 26, 2020, the last sale price of our common stock on the NYSE was $40.12 per share, and there were approximately 417 holders of record of the common
stock which did not include stockholders for whom shares are held in "nominee" or "street name." The net asset value per share of our common stock on December 31, 2019
was $23.91, and the premium of the February 26, 2020 closing price of our common stock was 68% to this net asset value per share.

       Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will
trade at a discount from net asset value per share or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value per
share will decrease. It is not possible to predict whether our common stock will trade at, above, or below net asset value per share. Since our IPO in October 2007, our shares of
common stock have traded at prices both less than and exceeding our net asset value per share.

       We currently pay regular monthly dividends and semiannual supplemental dividends to our stockholders. Our monthly dividends, if any, will be determined by our Board
of Directors on a quarterly basis. Our semiannual supplemental dividends, if any, will also be determined by our Board of Directors on a periodic basis. During 2019, we paid
supplemental dividends of $0.250 per share in June 2019 and $0.240 per share in December 2019, regular monthly dividends of $0.195 per share for each month of January
through March 2019, regular monthly dividends of $0.200 per share for each month of April through June 2019 and regular

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monthly dividends of $0.205 per share for each month of July through December 2019, with such dividends totaling $182.8 million, or $2.905 per share. The 2019 regular
monthly dividends, which total $151.6 million, or $2.415 per share, represent a 5.2% increase from the regular monthly dividends paid per share for the year ended 2018. For
tax purposes, the 2019 dividends, which included the effects of dividends on an accrual basis, total $2.915 per share and were comprised of (i) ordinary income totaling
approximately $2.636 per share, (ii) qualified dividend income totaling approximately $0.249 per share and (iii) long term capital gain totaling approximately $0.031 per share.
As we have previously discussed, it is our current intention to fully absorb our semi-annual supplemental dividends into our regular monthly dividends by gradually reducing
our semi-annual supplemental dividends while increasing our regular monthly dividends over multiple years. Our ability to maintain or grow our level of total annual dividends
during the transition period will depend on many factors, including some that are outside of our control. Factors that may impact our level of total dividends include, but are not
limited to, market interest rate levels and related volatility, level of investment originations and repayments, overall performance of our investment portfolio and the overall
performance of the specific industries and markets that we invest in and the overall U.S. economy.

       In accordance with the IRC sections 871(k) and 881(e), the following percentages represent the portion of our dividends that constitute interest related dividends and short-
term capital gains dividends for non-U.S. residents and foreign corporations. Including the long-term capital gains discussed above, the following percentages represent the total
dividends which are exempt from U.S. withholding tax.

Payment Dates
2/15/2019
3/15/2019 to 4/15/2019
5/15/2019
6/14/2019
6/25/2019 to 1/15/2020

Interest-Related Dividends
and Short-Term
Capital Gain Dividend

Distributions Exempt
from U.S.
Withholding Tax(1)

52.51% 
68.15% 
33.46% 
35.68% 
56.22% 

68.15% 
68.15% 
33.46% 
35.68% 
56.22% 

(1)

The percentage for each period represents the portion of the taxable ordinary income dividends eligible for exemption from United States
withholding tax for non-U.S. residents and foreign corporations.

       To the extent non-U.S. resident taxes were withheld on ordinary dividends distributed, this information may be considered in connection with any claims for refund of such
taxes to be filed by the non-U.S. resident stockholder with the Internal Revenue Service.

       To obtain and maintain RIC tax treatment, we must, among other things, distribute at least 90% of our net ordinary taxable income and realized net short-term capital gains
in excess of realized net long-term capital losses, if any. We will be subject to a 4% non-deductible U.S. federal excise tax on certain undistributed taxable income unless we
distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income
for the one-year period ending December 31 in that calendar year and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S.
federal income tax. Dividends declared and paid by us in a year will generally differ from taxable income for that year, as such dividends may include the distribution of current
year taxable income, less amounts carried over into the following year, and the distribution of prior year taxable income carried over into and distributed in the current year. For
amounts we carry over into the following year, we will be required to pay the 4% U.S. federal excise tax on the excess of 98% of our annual investment company taxable
income and 98.2% of our capital gain net income over our distributions for the year. We may retain for investment some or all of our net capital gains (i.e., realized net long-
term capital gains in excess of realized net short-term capital losses) and treat such amounts as deemed distributions to our stockholders. If we do this, our stockholders will be
treated as if they had received actual distributions of the capital gains we retained and then reinvested the net after-tax proceeds in our common stock. In general, our
stockholders also would be eligible to claim a tax credit (or, in certain circumstances, a

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tax refund) equal to their allocable shares of the tax we paid on the capital gains deemed distributed to them. We can offer no assurance that we will achieve results that will
permit the payment of any cash distributions and, if we issue senior securities, we may be prohibited from making distributions if doing so causes us to fail to maintain the asset
coverage ratios stipulated by the 1940 Act or if distributions are limited by the terms of any of our borrowings.

       We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions
payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance
providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided
that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include
the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend), to the extent of our
current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in
excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in
income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required
to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our
stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

       We have adopted a dividend reinvestment plan ("DRIP") that provides for the reinvestment of dividends on behalf of our stockholders, unless a stockholder has elected to
receive dividends in cash. As a result, if we declare a cash dividend, our stockholders who have not "opted out" of the DRIP by the dividend record date will have their cash
dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of new shares of
common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of
MSCC's common stock on a valuation date determined for each dividend by our Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will
be valued based upon the average price of the applicable shares purchased by the DRIP plan administrator, before any associated brokerage or other costs. Our DRIP is
administered by its transfer agent on behalf of our record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to
participate in our DRIP but may provide a similar dividend reinvestment plan for their clients.

SALES OF UNREGISTERED SECURITIES

       During the year ended December 31, 2019, we issued a total of 441,927 shares of our common stock under the DRIP. These issuances were not subject to the registration
requirements of the Securities Act of 1933, as amended. The aggregate value of the shares of our common stock issued under the DRIP during 2019 was approximately
$18.1 million.

PURCHASES OF EQUITY SECURITIES

       Upon vesting of restricted stock awarded pursuant to our employee equity compensation plan, shares may be withheld to meet applicable tax withholding requirements.
Any withheld shares are treated as common stock purchases by the Company in our consolidated financial statements as they reduce the number of shares received by
employees upon vesting (see "Purchase of vested stock for employee payroll tax withholding" in the consolidated statements of changes in net assets for share amounts
withheld).

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STOCK PERFORMANCE GRAPH

       The following graph compares the stockholder return on our common stock from October 5, 2007 to December 31, 2019 with the S&P 500 Index, the Russell 2000 Index,
the KBW Regional Bank Index and the Main Street Peer Group (as defined below). This comparison assumes $100.00 was invested on October 5, 2007 (the date our common
stock began to trade in connection with our initial public offering) in our common stock and in the comparison groups and assumes the reinvestment of all cash dividends prior
to any tax effect. The comparisons in the graph below are based on historical data and are not intended to forecast the possible future performance of our common stock.

COMPARISON OF STOCKHOLDER RETURN(1)
Among Main Street Capital Corporation, the S&P 500 Index, the Russell 2000 Index, the KBW
Regional Bank Index, and the Main Street Peer Group(2)
(For the Period October 5, 2007 to December 31, 2019) 

    TOTAL RETURN PERFORMANCE SINCE IPO 

(1)

(2)

Total return includes reinvestment of dividends through December 31, 2019. 

The Main Street Peer Group is composed of Apollo Investment Corp., Ares Capital Corporation, Barings BDC, Inc., Blackrock Capital Investment Corp., TCG BDC,
Inc, Capital Southwest Corporation, Fidus Investment Corporation, FS KKR Capital Corp., Gladstone Investment Corporation, Garrison Capital Inc., Golub Capital
BDC, the Goldman Sachs BDC Inc., Hercules Capital Inc., Medley Capital Corporation, Monroe Capital Corporation, Newtek Business Services Corp., New Mountain
Finance Corporation, Oaktree Strategic Income Corp., Oaktree Specialty Lending Corp., PennantPark Floating Rate Capital Ltd., PennantPark Investment Corp.,
Prospect Capital Corp., Stellus Capital Investment Corp., Solar Capital Ltd., BlackRock TCP Capital Corp., THL Credit, Inc., TPG Specialty Lending, Inc. and
WhiteHorse Finance, Inc.

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    Item 6.    Selected Financial Data 

       The selected financial and other data as of and for the years ended December 31, 2019, 2018, 2017, 2016 and 2015 have been derived from consolidated financial
statements that have been audited by Grant Thornton LLP, an independent registered public accounting firm. You should read this selected financial and other data in
conjunction with our "Management's Discussion and Analysis of Financial Condition and Results of Operations" and the consolidated financial statements and related notes
included in this Annual Report on Form 10-K.

2019

Twelve Months Ended December 31,
2017
(dollars in thousands, except per share amounts)

2016

2018

2015

Statement of operations data:
Investment income:

Total interest, fee and dividend income
Interest from idle funds and other

Total investment income

Expenses:
Interest
Compensation
General and administrative
Share-based compensation
Expenses allocated to the External Investment Manager

Total expenses
Net investment income

Total net realized gain (loss) from investments
Realized loss on extinguishment of debt           
Total net unrealized appreciation (depreciation) from

investments

Total net unrealized appreciation (depreciation) from

SBIC debentures

Income tax benefit (provision)

Net increase in net assets resulting from operations

attributable to common stock

Net investment income per share — basic and diluted
Net increase in net assets resulting from operations

243,373  $

233,355  $

205,741  $

— 
243,373 

— 
233,355 

— 
205,741 

178,165  $
174 
178,339 

163,603 
986 
164,589 

(50,258)  
(19,792)  
(12,546)  
(10,083)  
6,672 
(86,007)  
157,366 
(15,112)  
(5,689)  

(43,493)  
(18,966)  
(11,868)  
(9,151)  
6,768 
(76,710)  
156,645 
1,341 
(2,896)  

(36,479)  
(18,560)  
(11,674)  
(10,027)  
6,370 
(70,370)  
135,371 
16,182 
(5,217)  

(33,630)  
(16,408)  
(9,284)  
(8,304)  
5,089 
(62,537)  
115,802 
29,389 
— 

(32,115)
(14,852)
(8,621)
(6,262)
4,335 
(57,515)
107,074 
(21,316)
— 

(10,204)  

17,981 

42,545 

(6,576)  

10,871 

4,450 
(1,242)  

1,294 
(6,152)  

6,212 
(24,471)  

(943)  
1,227 

(879)
8,687 

  $
  $

129,569  $
2.50  $

168,213  $
2.60  $

170,622  $
2.39  $

138,899  $
2.23  $

104,437 
2.18 

attributable to common stock per share — basic and diluted   $

2.06  $

2.80  $

3.01  $

Weighted-average shares outstanding — basic and diluted

  62,960,591 

  60,176,843 

  56,691,913 

  52,025,002 

53

2.67  $

2.13 
  49,071,492 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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2019

2018

As of December 31,
2017
2016
(dollars in thousands)

2015

Balance sheet data:
Assets:

Total portfolio investments at fair value
Marketable securities and idle funds investments
Cash and cash equivalents
Interest receivable and other assets
Deferred financing costs, net of accumulated amortization            
Deferred tax asset, net

Total assets
Liabilities and net assets:

Credit facility
SBIC debentures at fair value(1)
5.20% Notes due 2024
4.50% Notes due 2022
4.50% Notes due 2019
6.125% Notes
Accounts payable and other liabilities
Payable for securities purchased
Interest payable
Dividend payable
Deferred tax liability, net

Total liabilities
Total net asset value

Total liabilities and net assets                 

Other data:

  $2,602,324  $2,453,909  $2,171,305  $1,996,906  $1,799,996 
3,693 
20,331 
37,638 
13,267 
4,003 
  $2,711,549  $2,553,426  $2,265,395  $2,080,279  $1,878,928 

— 
55,246 
50,458 
3,521 
— 

— 
51,528 
38,725 
3,837 
— 

— 
24,480 
37,123 
12,645 
9,125 

— 
54,181 
40,875 
4,461 
— 

  $ 300,000  $ 301,000  $

64,000  $ 343,000  $ 291,000 
223,660 
239,603 
288,483 
— 
— 
— 
182,015 
— 
— 
175,000 
175,000 
173,616 
90,738 
90,655 
89,057 
12,292 
14,205 
20,168 
2,311 
2,184 
40,716 
3,959 
5,273 
4,103 
9,074 
10,048 
11,146 
10,553 
— 
— 
808,034 
878,798 
885,027 
  1,070,894 
  1,201,481 
  1,380,368 
  $2,711,549  $2,553,426  $2,265,395  $2,080,279  $1,878,928 

306,188 
324,595 
183,229 
— 
— 
24,532 
— 
7,292 
13,174 
16,149 
  1,175,159 
  1,536,390 

338,186 
— 
182,622 
174,338 
— 
17,962 
28,254 
6,041 
11,948 
17,026 
  1,077,377 
  1,476,049 

Weighted-average effective yield on LMM debt investments(2),(3)
Number of LMM portfolio companies
Weighted-average effective yield on Middle Market debt

investments(2),(3)

Number of Middle Market portfolio companies
Weighted-average effective yield on Private Loan debt

investments(2),(3)

Number of Private Loan portfolio companies
Expense ratios (as percentage of average net assets):
Total expenses, including income tax expense
Operating expenses
Operating expenses, excluding interest expense                 
Total investment return(4)
Total return based on change in NAV(5)

11.8% 
69 

8.6% 
51 

9.5% 
65 

5.7% 
5.7% 
2.4% 
36.9% 

8.8% 

12.3% 
69 

9.6% 
56 

10.4% 
59 

5.7% 
5.3% 
2.3% 
–8.3% 

12.2% 

12.0% 
70 

12.5% 
73 

12.2% 
71 

9.0% 
62 

9.2% 
54 

7.4% 
5.5% 
2.6% 
16.0% 

14.2% 

8.5% 
78 

9.6% 
46 

5.5% 
5.6% 
2.6% 
37.4% 

13.0% 

8.0% 
86 

9.5% 
40 

4.6% 
5.5% 
2.4% 
8.5% 

11.1% 

(1)

(2)

(3)

(4)

(5)

SBIC debentures for December 31, 2019, 2018, 2017, 2016 and 2015 are $311,800, $345,800, $295,800, $240,000 and $225,000 at par, respectively. 

Weighted-average effective yield is calculated based on our debt investments at the end of each period and includes amortization of deferred debt
origination fees and accretion of original issue discount, but excludes liquidation fees payable upon repayment and any debt investments on non-
accrual status. The weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its
investment because it does not reflect any debt investments on non-accrual status, our expenses or any sales load paid by an investor. For information
on our investments on non-accrual status, see "Management's Discussion and Analysis of Financial Condition and Results of Operations — Portfolio
Asset Quality". 

Including investments on non-accrual status, the weighted-average effective yield for LMM, Middle Market, and Private Loan debt investments was
10.8%, 8.2%, and 9.1%, respectively, as of December 31, 2019. 

Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day
of each period reported on the table and assumes reinvestment of dividends at prices obtained by our dividend reinvestment plan during the period. The
return does not reflect any sales load that may be paid by an investor. 

Total return is based on change in net asset value and was calculated using the sum of ending net asset value plus dividends to stockholders and other
non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset
value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity
incentive plans and other miscellaneous items.

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    Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations 

       The following discussion should be read in conjunction with our consolidated financial statements and the notes thereto included elsewhere in this Annual Report on
Form 10-K.

       Statements we make in the following discussion which express a belief, expectation or intention, as well as those that are not historical fact, are forward-looking statements
that are subject to risks, uncertainties and assumptions. Our actual results, performance or achievements, or industry results, could differ materially from those we express in
the following discussion as a result of a variety of factors, including the risks and uncertainties we have referred to under the headings "Cautionary Statement Concerning
Forward-Looking Statements" and "Risk Factors" in Part I of this report.

ORGANIZATION

       Main Street Capital Corporation ("MSCC") is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market
("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made
to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to
partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its
consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in
secured debt investments of Middle Market companies generally headquartered in the United States.

       MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended
(the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street
Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business
Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and other
employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with
employing investment and portfolio management professionals.

       MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and
other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receives fee income for such services. MSCC has been
granted no-action relief by the Securities and Exchange Commission ("SEC") to allow the External Investment Manager to register as a registered investment adviser under the
Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted
for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

       MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of
1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it
distributes to its stockholders.

       MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable
Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes.

       Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries,
which include the Funds and the Taxable Subsidiaries.

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OVERVIEW

       Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our
equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies
generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle
Market investments are made in businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and
$1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our private loan ("Private Loan") portfolio investments are primarily
debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis. Private Loan
investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

       We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The
underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity
participations. Our ability to invest across a company's capital structure, from secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of
financing options, or a "one stop" financing solution. Providing customized, "one stop" financing solutions is important to LMM portfolio companies. We generally seek to
partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first
lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies
that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or
second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other
investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and
conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or
second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market or
Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in
connection with investments managed by third parties, such as investments in other investment companies or private funds.

       Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the
assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement
with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income
Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships,
management expertise and capital raising capabilities.

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       The following tables provide a summary of our investments in the LMM, Middle Market and Private Loan portfolios as of December 31, 2019 and 2018 (this information
excludes the Other Portfolio investments and the External Investment Manager which are discussed further below):

LMM(a)

As of December 31, 2019
  Middle Market

  Private Loan  

Number of portfolio companies
Fair value
Cost
% of portfolio at cost — debt
% of portfolio at cost — equity
% of debt investments at cost secured by first priority lien
Weighted-average annual effective yield(b)
Average EBITDA(c)

69 

  $ 1,206.9  $
  $ 1,002.2  $

65.9% 
34.1% 
98.1% 
11.8% 

  $

5.1  $

(dollars in millions)
51 
522.1  $
572.3  $
94.8% 
5.2% 
91.3% 
8.6% 
85.0  $

65 
692.1 
734.8 
94.6% 
5.4% 
95.4% 
9.5% 
57.8 

(a)

(b)

(c)

At December 31, 2019, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity
ownership in those portfolio companies was approximately 42%. 

The weighted average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31,
2019, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment
of the debt instruments and any debt investments on non-accrual status. Weighted average annual effective yield is higher than what an investor in
shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor. 

The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan
portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, two Middle Market portfolio
company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio
companies, and those portfolio companies whose primary purpose is to own real estate.

LMM(a)

As of December 31, 2018
  Middle Market

  Private Loan  

Number of portfolio companies
Fair value
Cost
% of portfolio at cost — debt
% of portfolio at cost — equity
% of debt investments at cost secured by first priority lien
Weighted-average annual effective yield(b)
Average EBITDA(c)

69 

  $ 1,195.0  $
990.9  $
  $
68.7% 
31.3% 
98.5% 
12.3% 

  $

4.7  $

(dollars in millions)
56 
576.9  $
608.8  $
96.3% 
3.7% 
87.9% 
9.6% 
99.1  $

59 
507.9 
553.3 
93.0% 
7.0% 
92.0% 
10.4% 
46.1 

(a)

(b)

At December 31, 2018, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity
ownership in those portfolio companies was approximately 40%. 

The weighted average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31,
2018, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment
of the debt instruments and any debt investments on non-accrual status. Weighted average annual

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effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses
or any sales load paid by an investor.

(c)

The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan
portfolios. These calculations exclude certain portfolio companies, including two LMM portfolio companies, one Middle Market portfolio
company and four Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio
companies, and those portfolio companies whose primary purpose is to own real estate.

       As of December 31, 2019, we had Other Portfolio investments in eleven companies, collectively totaling approximately $106.7 million in fair value and approximately
$118.4 million in cost basis and which comprised approximately 4.1% of our Investment Portfolio (as defined in "Critical Accounting Policies — Basis of Presentation" below)
at fair value. As of December 31, 2018, we had Other Portfolio investments in eleven companies, collectively totaling approximately $108.3 million in fair value and
approximately $116.0 million in cost basis and which comprised approximately 4.4% of our Investment Portfolio at fair value.

       As previously discussed, the External Investment Manager is a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2019, there was no
cost basis in this investment and the investment had a fair value of approximately $74.5 million, which comprised approximately 2.9% of our Investment Portfolio at fair value.
As of December 31, 2018, there was no cost basis in this investment and the investment had a fair value of approximately $65.7 million, which comprised approximately 2.7%
of our Investment Portfolio at fair value.

       Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are
subject to different regulatory regimes. An investor's return in MSCC will depend, in part, on the Funds' investment returns as they are wholly owned subsidiaries of MSCC.

       The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new
investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated
interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt
investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our
growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position
based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will
also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and
unrealized appreciation or depreciation could have a material impact on our operating results.

       Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing
investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared
to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-
interest operating expenses as we grow our Investment Portfolio. For both of the years ended December 31, 2019 and 2018, the ratio of our total operating expenses, excluding
interest expense, as a percentage of our quarterly average total assets was 1.4%.

       During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a
non-listed BDC, to provide certain investment

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advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned
the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to
meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is
entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. The External Investment Manager
agreed to waive the historical incentive fees otherwise earned through December 31, 2018. During the years ended December 31, 2019, 2018 and 2017, the External Investment
Manager earned $13.1 million, $11.6 million and $10.9 million, respectively, in fee income, which consisted of $11.1 million of base management fees and $2.0 million in
incentive fees in 2019 compared to $11.6 million and $10.9 million of base management fees for the comparable period in 2018 and 2017, respectively, under the sub-advisory
agreement with HMS Adviser.

       During April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where co-investing
would otherwise be prohibited under the 1940 Act. We have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the
conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate
for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. Because the External Investment Manager may
receive performance-based fee compensation from HMS Income, this may provide it an incentive to allocate opportunities to HMS Income instead of us. However, both we and
the External Investment Manager have policies and procedures in place to manage this conflict.

CRITICAL ACCOUNTING POLICIES

Basis of Presentation

       Our consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP"). For each of
the periods presented herein, our consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein,
refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio
investments, and the investment in the External Investment Manager. Our results of operations and cash flows for the years ended December 31, 2019, 2018 and 2017 and
financial position as of December 31, 2019 and 2018, are presented on a consolidated basis. The effects of all intercompany transactions between us and our consolidated
subsidiaries have been eliminated in consolidation. Certain reclassifications have been made to prior period balances to conform with the current presentation.

       We are an investment company following the accounting and reporting guidance in Financial Accounting Standards Board ("FASB") Accounting Standards Codification
("ASC") 946, Financial Services — Investment Companies ("ASC 946"). Under ASC 946, we are precluded from consolidating other entities in which we have equity
investments, including those in which we have a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946
occurs if we hold a controlling interest in an operating company that provides all or substantially all of its services directly to us or to any of our portfolio companies.
Accordingly, as noted above, our consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. We have
determined that all of our portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, our Investment
Portfolio is carried on the consolidated balance sheet at fair value with any adjustments to fair value recognized as "Net Unrealized Appreciation (Depreciation)" on the
consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net Realized Gain (Loss)."

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Investment Portfolio Valuation

       The most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts
of unrealized appreciation and depreciation. As of both December 31, 2019 and 2018, our Investment Portfolio valued at fair value represented approximately 96% of our total
assets. We are required to report our investments at fair value. We follow the provisions of FASB ASC 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820
defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances
disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market
participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing
and able to transact. See "Note B.1. — Valuation of the Investment Portfolio" in the notes to consolidated financial statements for a detailed discussion of our investment
portfolio valuation process and procedures.

       Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have
been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur
over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We
determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

       Our Board of Directors has the final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio
and our valuation procedures, consistent with 1940 Act requirements. We believe our Investment Portfolio as of December 31, 2019 and 2018 approximates fair value as of
those dates based on the markets in which we operate and other conditions in existence on those reporting dates.

Revenue Recognition

Interest and Dividend Income

       We record interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by
the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with our valuation policies, we evaluate accrued
interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if we otherwise do not expect the debtor to be
able to service all of its debt or other obligations, we will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or
debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security's status significantly improves regarding the
debtor's ability to service the debt or other obligations, or if a loan or debt security is sold or written off, we remove it from non-accrual status.

Fee Income

       We may periodically provide services, including structuring and advisory services, to our portfolio companies or other third parties. For services that are separately
identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes.
Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into
income over the life of the financing.

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Payment-in-Kind ("PIK") Interest and Cumulative Dividends

       We hold certain debt and preferred equity instruments in our Investment Portfolio that contain PIK interest and cumulative dividend provisions. The PIK interest, computed
at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of
this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the
balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To
maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though we may
not have collected the PIK interest and cumulative dividends in cash. We stop accruing PIK interest and cumulative dividends and write off any accrued and uncollected interest
and dividends in arrears when we determine that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2019, 2018 and 2017,
(i) approximately 2.0%, 1.0%, and 2.4%, respectively, of our total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately
1.0%, 1.0%, and 1.6%, respectively, of our total investment income was attributable to cumulative dividend income not paid currently in cash.

Share-Based Compensation

       We account for our share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation — Stock Compensation. Accordingly, for
restricted stock awards, we measure the grant date fair value based upon the market price of our common stock on the date of the grant and amortize the fair value of the awards
as share-based compensation expense over the requisite service period, which is generally the vesting term.

       We have also adopted Accounting Standards Update ("ASU") 2016-09, Compensation — Stock Compensation: Improvements to Employee Share-Based Payment
Accounting, which requires that all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) be recognized as income tax
expense or benefit in the income statement and not delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. Accordingly, the tax
effects of exercised or vested awards are treated as discrete items in the reporting period in which they occur. Additionally, we have elected to account for forfeitures as they
occur.

Income Taxes

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its
subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes
on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable
income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-
exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4%
non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are
declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of
the year in which such taxable income was generated.

       The Taxable Subsidiaries primarily hold certain portfolio investments for us. The Taxable Subsidiaries permit us to hold equity investments in portfolio companies which
are "pass-through" entities for tax purposes and to continue to comply with the "source-of-income" requirements contained in the RIC tax provisions of the Code. The Taxable
Subsidiaries are consolidated with us for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in our
consolidated

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financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate
income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable
Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed
at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries
are reflected in our consolidated financial statements.

       The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The
External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio
investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements, and as a result of the tax sharing agreement with
its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on
its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and
liabilities, of the External Investment Manager are reflected in the External Investment Manager's separate financial statements.

       In December 2017, the "Tax Cuts and Jobs Act" legislation was enacted. The Tax Cuts and Jobs Act included significant changes to the U.S. corporate tax system, including
a U.S. federal corporate income tax rate reduction from 35% to 21% and other changes. ASC 740, Income Taxes, requires the effects of changes in tax rates and laws on
deferred tax balances to be recognized in the period in which the legislation was enacted. As such, we have accounted for the tax effects as a result of the enactment of the Tax
Cuts and Jobs Act beginning with the period ended December 31, 2017.

       The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for
temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the
year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that
some portion or all of the deferred tax asset will not be realized.

       Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses.
Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized. Our
stockholders' equity includes an adjustment to classification as a result of permanent book-to-tax differences, which include differences in the book and tax treatment of income
and expenses.

INVESTMENT PORTFOLIO COMPOSITION

       Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United
States. Our LMM portfolio companies generally have annual revenues between $10 million and $150 million, and our LMM investments generally range in size from
$5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, can include either
fixed or floating rate terms and generally have a term of between five and seven years from the original investment date. In most LMM portfolio investments, we receive
nominally priced equity warrants and/or make direct equity investments in connection with a debt investment.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies
based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio companies generally have annual
revenues between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our Middle Market portfolio debt

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investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from
the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other
investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and
conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or
second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Our Other Portfolio investments primarily consist of investments which are not consistent with the typical profiles for LMM, Middle Market and Private Loan portfolio
investments, including investments which may be managed by third parties. In the Other Portfolio, we may incur indirect fees and expenses in connection with investments
managed by third parties, such as investments in other investment companies or private funds.

       Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the
assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement
with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income.
Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and
capital raising capabilities, and we allocate the related expenses to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the years ended
December 31, 2019, 2018 and 2017 are net of expenses allocated to the External Investment Manager of $6.7 million, $6.8 million and $6.4 million, respectively. The External
Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of
the funds managed. The total contribution of the External Investment Manager to our net investment income consists of the combination of the expenses allocated to the External
Investment Manager and the dividend income received from the External Investment Manager. For the years ended December 31, 2019, 2018 and 2017, the total contribution to
our net investment income was $11.7 million, $10.6 million and $9.4 million, respectively.

       The following tables summarize the composition of our total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio
investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle Market portfolio investments and Private
Loan portfolio investments as of December 31, 2019 and 2018 (this information excludes the Other Portfolio investments and the External Investment Manager).

Cost:
First lien debt
Equity
Second lien debt
Equity warrants
Other

  December 31, 2019

  December 31, 2018

78.2% 
17.2% 
3.5% 
0.6% 
0.5% 
100.0% 

77.1% 
16.6% 
5.3% 
0.6% 
0.4% 
100.0% 

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Fair Value:
First lien debt
Equity
Second lien debt
Equity warrants
Other

  December 31, 2019

  December 31, 2018

70.1% 
26.0% 
3.0% 
0.4% 
0.5% 
100.0% 

69.0% 
25.5% 
4.6% 
0.5% 
0.4% 
100.0% 

       Our LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments carry a number of risks including: (1) investing in companies
which may have limited operating histories and financial resources; (2) holding investments that generally are not publicly traded and which may be subject to legal and other
restrictions on resale; and (3) other risks common to investing in below investment grade debt and equity investments in our Investment Portfolio. Please see "Risk Factors —
Risks Related to Our Investments" for a more complete discussion of the risks involved with investing in our Investment Portfolio.

PORTFOLIO ASSET QUALITY

       We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each
of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including each
investment's expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity investments, comparisons
to competitors and other industry participants, the portfolio company's future outlook and other factors that are deemed to be significant to the portfolio company.

       As of December 31, 2019, our total Investment Portfolio had eight investments on non-accrual status, which comprised approximately 1.4% of its fair value and 4.8% of its
cost. As of December 31, 2018, our total Investment Portfolio had six investments on non-accrual status, which comprised approximately 1.3% of its fair value and 3.9% of its
cost.

       The operating results of our portfolio companies are impacted by changes in the broader fundamentals of the United States economy. In the event that the United States
economy contracts, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from
current levels, which could ultimately lead to difficulty in meeting their debt service requirements, to an increase in defaults on our debt investments or in realized losses on our
investments and to difficulty in maintaining historical dividend payment rates and unrealized appreciation on our equity investments. Consequently, we can provide no
assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles or other conditions, which could also have a negative impact
on our future results.

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DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS

       Set forth below is a comparison of the results of operations for the years ended December 31, 2019 and 2018. For a comparison of the results of operations for the years
ended December 31, 2018 and 2017, see the Company's Form 10-K for the year ended December 31, 2018, as filed with the SEC on March 1, 2019.

Comparison of the years ended December 31, 2019 and 2018

Twelve Months
Ended
December 31,

Net Change

2019

2018

Amount

  %

(dollars in thousands)

Total investment income
Total expenses

Net investment income

Net realized gain (loss) from investments
Net realized loss on extinguishment of debt
Net unrealized appreciation (depreciation) from:

Portfolio investments
SBIC debentures

Total net unrealized appreciation (depreciation)

Income tax provision

Net increase in net assets resulting from operations

Net investment income
Share-based compensation expense
Distributable net investment income(a)
Net investment income per share — Basic and diluted
Distributable net investment income per share — Basic and diluted(a)

  $ 243,373  $ 233,355  $
(76,710)  

(86,007)  

  157,366 

(15,112)  
(5,689)  

  156,645 
1,341 
(2,896)  

4%
(12)%
0%

10,018 
(9,297)
721 
(16,453)
(2,793)

(10,204)  
4,450 
(5,754)  
(1,242)  

(28,185)
3,156 
(25,029)
4,910 
  $ 129,569  $ 168,213  $ (38,644)

17,981 
1,294 
19,275 
(6,152)  

(23)%

Twelve Months
Ended
December 31,

Net Change

2019

2018

  Amount

  %

(dollars in thousands, except per share
amounts)

  $ 157,366  $ 156,645  $

10,083 

9,151 

  $ 167,449  $ 165,796  $ 1,653 
(0.10)
  $
(0.10)
  $

2.50  $
2.66  $

2.60  $
2.76  $

721 
0%
932  10%
1%
(4)%
(4)%

(a)

Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based
compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is
useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not
require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a
replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment
income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net
investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

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Investment Income

       For the year ended December 31, 2019, total investment income was $243.4 million, a 4% increase over the $233.4 million of total investment income for the
corresponding period of 2018. This comparable period increase was principally attributable to (i) a $10.3 million net increase in interest income primarily related to higher
average levels of Investment Portfolio debt investments, partially offset by decreased levels of prepayment, repricing and other activities involving existing Investment Portfolio
debt investments and by decreases in the average effective yields of the Investment Portfolio debt investments, and (ii) a $3.3 million increase in dividend income from
Investment Portfolio equity investments, partially offset by a $3.6 million decrease in fee income. The $10.0 million increase in total investment income in the year ended
December 31, 2019 is net of the net negative impact (i) a decrease of $8.0 million related to elevated dividend income activity in 2018 from certain Investment Portfolio equity
investments that was considered to be less consistent on a recurring basis or non-recurring and (ii) a decrease of $4.0 million related to lower accelerated prepayment, repricing
and other activity for certain Investment Portfolio debt investments in 2019.

Expenses

       For the year ended December 31, 2019, total expenses increased to $86.0 million from $76.7 million for the corresponding period of 2018. This comparable period increase
in operating expenses was principally attributable to (i) a $6.8 million increase in interest expense, primarily due to an $9.7 million increase as a result of the issuances of our
5.20% Notes (as defined below) in April 2019 and December 2019, partially offset by (a) a $1.5 million decrease from the redemption of the 6.125% Notes (as defined below)
effective April 1, 2018, (b) a $0.7 million decrease from the repayment of the 4.50% Notes due 2019 (as defined below) effective December 1, 2019 and (c) a $0.7 million
decrease relating to our multi-year revolving credit facility (the "Credit Facility") primarily due to the lower average balance outstanding, (ii) a $0.9 million increase in share-
based compensation expense, (iii) $0.8 million increase in compensation expense and (iv) a $0.7 million increase in general and administrative expenses during the year ended
December 31, 2019. The $0.8 million increase in compensation expense is primarily related to a $1.1 million increase as a result of the increase in the fair value of our deferred
compensation plan assets and a $1.7 million increase in base compensation related expenses primarily as a result of an increase in the number of personnel, partially offset by a
$2.0 million decrease in cash incentive compensation levels. The ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total
assets for both of the years ended December 31, 2019 and 2018 was 1.4%.

Net Investment Income

       Net investment income for the year ended December 31, 2019 was $157.4 million, compared to net investment income of $156.6 million for the corresponding period of
2018. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher operating expenses both as
discussed above.

Distributable Net Investment Income

       For the year ended December 31, 2019, distributable net investment income increased 1% to $167.4 million, or $2.66 per share, compared with $165.8 million, or $2.76 per
share, in the corresponding period of 2018. The increase in distributable net investment income was primarily due to the higher level of total investment income, partially offset
by higher operating expenses both as discussed above. Distributable net investment income on a per share basis for the year ended December 31, 2019 reflects (i) a decrease of
$0.20 per share due to a lower level of income per share attributable to the decrease in the unusual or non-recurring dividend income activity from 2018 and the decrease in
interest income from accelerated prepayment, repricing and other income activity considered non-recurring, as discussed above, (ii) a decrease of $0.02 per share due to the
increase in the fair value of the deferred compensation plan assets, as discussed above, and (iii) a greater number of average shares outstanding compared to the corresponding
period in 2018, primarily due to shares issued through the ATM Program (as defined in "— Liquidity and Capital

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Resources — Capital Resources" below), shares issued pursuant to our equity incentive plans and shares issued pursuant to our dividend reinvestment plan.

Net Increase in Net Assets Resulting from Operations

       The net increase in net assets resulting from operations during the year ended December 31, 2019 was $129.6 million, or $2.06 per share, compared with $168.2 million, or
$2.80 per share, during the year ended December 31, 2018. This $38.6 million decrease from the prior year was primarily the result of (i) a $25.0 million decrease in net
unrealized appreciation (depreciation) from portfolio investments, including the impact of accounting reversals relating to realized gains/income (losses), and SBIC debentures,
(ii) a $16.5 million decrease in the net realized gain (loss) from investments and (iii) a $2.8 million increase in the net realized loss on extinguishment of debt. These decreases
were partially offset by (i) a $0.7 million increase in net investment income as discussed above and (ii) a $4.9 million decrease in the income tax provision.

       The net realized loss from investments of $15.1 million for the year ended December 31, 2019 was primarily attributable to the net realized loss of $29.2 million in our
Middle Market portfolio, which is primarily the result of (i) the realized losses of $12.2 million on the exits of two Middle Market investments, (ii) the realized losses of
$9.9 million resulting from the restructure of two Middle Market investments and (iii) the realized loss of $7.0 million resulting from the partial exit of a Middle Market
investment. These realized losses were partially offset by (i) the net realized gain of $13.8 million on the exits of four LMM investments and (ii) the net realized gain of
$0.6 million on the exits of four Private Loan investments.

       The net realized gain from investments of $1.3 million for the year ended December 31, 2018 was primarily the result of (i) the net realized gain of $13.7 million resulting
from the net effect of gains on the exits of six LMM investments, partially offset by losses on the exits of four LMM investments and other activity in the LMM portfolio,
(ii) the realized gains of $6.1 million due to activity in our Other Portfolio and (iii) the realized gains of $2.5 million in our Private Loan portfolio, with the effect of these net
realized gains partially offset by the net realized loss of $20.9 million in our Middle Market portfolio, which is primarily the result of (i) the realized losses of $17.6 million on
the restructures of two Middle Market investments and (ii) the realized losses of $4.4 million on the exits of two Middle Market investments.

       The following table provides a summary of the total net unrealized depreciation of $5.8 million for the year ended December 31, 2019:

  LMM(a)

The Year Ended December 31, 2019
Private
Loan
(dollars in millions)

Middle
Market

  Other

Total

Accounting reversals of net unrealized (appreciation) depreciation

recognized in prior periods due to net realized (gains / income) losses
recognized during the current period

  $

Net unrealized appreciation (depreciation) relating to portfolio investments  
Total net unrealized appreciation (depreciation) relating to portfolio

(14.0) $
14.5 

23.6  $
(42.0)  

(2.3) $
4.3 

0.1  $
5.6(b) 

7.4 
(17.6)

investments

  $

0.5  $ (18.4) $

2.0  $

Unrealized appreciation relating to SBIC debentures(c)
Total net unrealized depreciation

5.7  $ (10.2)
4.4 
(5.8)

   $

(a)

LMM includes unrealized appreciation on 33 LMM portfolio investments and unrealized depreciation on 27 LMM portfolio investments.

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(b)

(c)

Other includes (i) $8.8 million of unrealized appreciation relating to the External Investment Manager and (ii) $0.9 million of unrealized
appreciation relating to the Main Street Capital Corporation Deferred Compensation Plan (see "Related Party Transactions"), partially offset by
$4.0 million of net unrealized depreciation relating to the Other Portfolio. 

Relates to $5.7 million of unrealized appreciation on the SBIC debentures previously issued by MSC II which are accounted for on a fair value
basis and is primarily related to accounting reversals of previously recognized unrealized depreciation recorded since the date of the MSC II
acquisition on the debentures repaid during the year ended December 31, 2019, partially offset by $1.2 million of unrealized depreciation on the
SBIC debentures previously issued by MSC II, which are also accounted for on a fair value basis.

       The following table provides a summary of the total net unrealized appreciation of $19.3 million for the year ended December 31, 2018:

Twelve Months Ended December 31, 2018
Private
Loan

Middle
Market

  Other

  LMM(a)

Total

Accounting reversals of net unrealized (appreciation) depreciation

recognized in prior periods due to net realized (gains / income) losses
recognized during the current period

Net unrealized appreciation (depreciation) relating to portfolio investments
Total net unrealized appreciation (depreciation) relating to portfolio

investments

Unrealized appreciation relating to SBIC debentures(c)
Total net unrealized appreciation

  $

  $

(22.2) $
54.5 

19.6  $
(31.3)  

(4.4) $ (2.6) $ (9.6)
(19.3)   23.7(b)  27.6 

32.3  $ (11.7) $ (23.7) $ 21.1  $ 18.0 
1.3 
   $ 19.3 

(dollars in millions)

(a)

(b)

(c)

LMM includes unrealized appreciation on 39 LMM portfolio investments and unrealized depreciation on 19 LMM portfolio investments. 

Other includes $24.0 million of unrealized appreciation relating to the External Investment Manager and $0.3 million of net unrealized depreciation
relating to the Other Portfolio. 

Primarily relates to unrealized appreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis and includes
$1.4 million of accounting reversals of previously recognized unrealized depreciation recorded since the date of acquisition of MSC II on the
debentures repaid due to fair value adjustments since such date.

       The income tax provision for the year ended December 31, 2019 of $1.2 million principally consisted of a current tax expense of $3.5 million related to (i) a $2.4 million
provision for current U.S. federal and state income taxes and (ii) a $1.1 million provision for excise tax on our estimated undistributed taxable income, partially offset by a
deferred tax benefit of $2.3 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in
loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary book-tax differences.

       The income tax provision for the year ended December 31, 2018 of $6.2 million principally consisted of a deferred tax provision of $5.8 million, which is primarily the
result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized
appreciation/depreciation and other temporary book-tax differences, and other current tax expense of $0.4 million.

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Liquidity and Capital Resources

Cash Flows

       For the year ended December 31, 2019, we experienced a net increase in cash and cash equivalents in the amount of $1.1 million, which is the net result of $33.8 million of
cash used in our operating activities and $34.9 million of cash provided by our financing activities.

       The $33.8 million of cash was used in our operating activities resulted primarily from cash uses totaling $664.1 million for the funding of new portfolio company
investments and settlement of accruals for portfolio investments existing as of December 31, 2018, partially offset by (i) cash flows we generated from the operating profits
earned totaling $151.6 million, which is our distributable net investment income, excluding the non-cash effects of the accretion of unearned income, payment-in-kind interest
income, cumulative dividends and the amortization expense for deferred financing costs, (ii) cash proceeds totaling $477.9 million from the sales and repayments of debt
investments and sales of and return on capital of equity investments and (iii) cash proceeds of $0.8 million related to changes in other assets and liabilities.

       The $34.9 million of cash was used in our financing activities principally consisted of (i) $325.0 million in cash proceeds from the issuance of the 5.20% Notes and
(ii) $89.3 million in net cash proceeds from the ATM Program (described below), partially offset by (i) $175.0 million cash used in repayment of 4.50% Notes due 2019,
(ii) $164.3 million in cash dividends paid to stockholders, (iii) $34.0 million in repayment of SBIC debentures, (iv) $3.9 million for purchases of vested restricted stock from
employees to satisfy their tax withholding requirements upon the vesting of such restricted stock, (v) $1.2 million for payment of deferred debt issuance costs, SBIC debenture
fees and other costs and (vi) and $1.0 in net repayments on the Credit Facility.

       For the year ended December 31, 2018, we experienced a net increase in cash and cash equivalents in the amount of $2.7 million, which is the net result of $109.1 million of
cash used in our operating activities and $111.7 million of cash provided by our financing activities.

       During the year ended December 31, 2018, $109.1 million of cash was used in our operating activities, which resulted primarily from cash uses totaling $962.5 million for
the funding of new portfolio company investments and settlement of accruals for portfolio investments existing as of December 31, 2017, partially offset by (i) cash flows we
generated from the operating profits earned totaling $149.8 million, which is our distributable net investment income, excluding the non-cash effects of the accretion of
unearned income, payment-in-kind interest income, cumulative dividends and the amortization expense for deferred financing costs, (ii) cash proceeds totaling $703.2 million
from the sales and repayments of debt investments and sales of and return on capital of equity investments and (iii) cash proceeds of $0.4 million related to changes in other
assets and liabilities.

       During the year ended December 31, 2018, $111.7 million in cash was provided by financing activities, which principally consisted of (i) $237.0 million in net cash
proceeds from the Credit Facility, (ii) $78.4 million in net cash proceeds from the ATM Program (described below), and (iii) $54.0 million in cash proceeds from issuance of
SBIC debentures, partially offset by (i) $156.0 million in cash dividends paid to stockholders, (ii) $90.7 million in redemption of 6.125% Notes, (iii) $4.1 million for purchases
of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock, (iv) $4.0 million in repayment of SBIC
debentures and (v) $2.9 million for payment of deferred debt issuance costs, SBIC debenture fees and other costs.

Capital Resources

       As of December 31, 2019, we had $55.2 million in cash and cash equivalents and $405.0 million of unused capacity under the Credit Facility, which we maintain to support
our investment and operating activities. As of December 31, 2019, our net asset value totaled $1,536.4 million, or $23.91 per share.

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       The Credit Facility, which provides additional liquidity to support our investment and operational activities, provides for total commitments of $705.0 million from a
diversified group of 17 lenders. The Credit Facility matures in September 2023 and contains an accordion feature which allows us to increase the total commitments under the
facility to up to $800.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

       Borrowings under the Credit Facility bear interest, subject to our election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to
the applicable LIBOR rate (1.8% as of December 31, 2019) plus (i) 1.875% (or the applicable base rate (Prime Rate of 4.75% as of December 31, 2019) plus 0.875%) as long
as we meet certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) otherwise. We pay unused
commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its
subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. The Credit Facility contains certain affirmative and negative
covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base, (ii) maintaining an interest coverage ratio of at least 2.0 to
1.0, (iii) maintaining an asset coverage ratio (tangible net worth to Credit Facility borrowings) of at least 1.5 to 1.0 and (iv) maintaining a minimum tangible net worth. The
Credit Facility is provided on a revolving basis through its final maturity date in September 2023, and contains two, one-year extension options which could extend the final
maturity by up to two years, subject to certain conditions, including lender approval. As of December 31, 2019, we had $300.0 million in borrowings outstanding under the
Credit Facility, the interest rate on the Credit Facility was 3.6% (based on the LIBOR rate of 1.7% as of the most recent reset date of December 1, 2019 plus 1.875%) and we
were in compliance with all financial covenants of the Credit Facility.

       Through the Funds, we have the ability to issue SBIC debentures guaranteed by the SBA at favorable interest rates and favorable terms and conditions. Under existing SBIC
regulations, SBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million.
Through the Funds, we have an effective maximum amount of $347.0 million as a result of certain voluntary prepayments of SBIC debentures under historical commitments
from the SBA. During the year ended December 31, 2019, Main Street received a $25.0 million commitment from the SBA in order to issue new SBIC debentures in the future
and opportunistically prepaid $34.0 million of existing SBIC debentures that were scheduled to mature over the next year as part of an effort to manage the maturity dates of the
oldest SBIC debentures. Debentures guaranteed by the SBA have fixed interest rates that equal prevailing 10-year Treasury Note rates plus a market spread and have a maturity
of ten years with interest payable semiannually. The principal amount of the debentures is not required to be paid before maturity, but may be pre-paid at any time with no
prepayment penalty. We expect to issue new SBIC debentures under the SBIC program in the future in an amount up to the regulatory maximum amount for affiliated SBIC
funds. As of December 31, 2019, through our three wholly owned SBICs, we had $311.8 million of outstanding SBIC debentures guaranteed by the SBA, which bear a
weighted-average annual fixed interest rate of approximately 3.6%, paid semiannually, and mature ten years from issuance. The first maturity related to our SBIC debentures
occurs in 2020, and the weighted-average remaining duration is approximately 5.1 years as of December 31, 2019.

       In April 2013, we issued $92.0 million, including the underwriters' full exercise of their over-allotment option, in aggregate principal amount of the 6.125% Notes (the
"6.125% Notes"). The 6.125% Notes bore interest at a rate of 6.125% per year payable quarterly on January 1, April 1, July 1 and October 1 of each year. On April 2, 2018, we
redeemed the entire principal amount of the issued and outstanding 6.125% Notes, effective April 1, 2018 (the "Redemption Date"), at par value plus the accrued and unpaid
interest thereon from January 1, 2018 through, but excluding, the Redemption Date. As part of the redemption, we recognized a realized loss on extinguishment of debt of
$1.5 million in the second quarter of 2018 related to the write-off of the related unamortized deferred financing costs.

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       In November 2014, we issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes due 2019") at an issue price of 99.53%.
The 4.50% Notes due 2019 bore interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. On December 2, 2019, we repaid the entire
principal amount of the issued and outstanding 4.50% Notes due 2019, effective December 1, 2019 (the "Maturity Date"), at par value plus the accrued and unpaid interest
thereon from June 1, 2019 through the Maturity Date.

       In November 2017, we issued $185.0 million in aggregate principal amount of 4.50% unsecured notes due 2022 (the "4.50% Notes due 2022") at an issue price of 99.16%.
The 4.50% Notes due 2022 are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that
expressly provides it is subordinated to the 4.50% Notes due 2022; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of
the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations
of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole
or in part at any time at our option subject to certain make-whole provisions. The 4.50% Notes due 2022 bear interest at a rate of 4.50% per year payable semiannually on
June 1 and December 1 of each year. We may from time to time repurchase 4.50% Notes due 2022 in accordance with the 1940 Act and the rules promulgated thereunder. As of
December 31, 2019, the outstanding balance of the 4.50% Notes due 2022 was $185.0 million.

       The indenture governing the 4.50% Notes due 2022 (the "4.50% Notes due 2022 Indenture") contains certain covenants, including covenants requiring our compliance with
(regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants
requiring us to provide financial information to the holders of the 4.50% Notes due 2022 and the Trustee if we cease to be subject to the reporting requirements of the Exchange
Act. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes due 2022 Indenture.

       In April 2019, we issued $250.0 million in aggregate principal amount of 5.20% unsecured Notes due 2024 (the "5.20% Notes") at an issue price of 99.125%.
Subsequently, in December 2019, we issued an additional $75.0 million of the 5.20% Notes at an issue price of 105.0%. The 5.20% Notes issued in December 2019 have
identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019. The aggregate net proceeds from the 5.20% Notes issuances were used to repay a
portion of the borrowings outstanding under the Credit Facility. The 5.20% Notes are unsecured obligations and rank pari passu with our current and future unsecured
indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 5.20% Notes; effectively subordinated to all of our existing and future
secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all
existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 5.20% Notes mature on
May 1, 2024, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions. As of December 31, 2019, the outstanding balance of
the 5.20% Notes was $325.0 million.

       The indenture governing the 5.20% Notes (the "5.20% Notes Indenture") contains certain covenants, including covenants requiring our compliance with (regardless of
whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to
provide financial information to the holders of the 5.20% Notes and the Trustee if we cease to be subject to the reporting requirements of the Exchange Act. These covenants are
subject to limitations and exceptions that are described in the 5.20% Notes Indenture.

       We maintain a program with certain selling agents through which we can sell shares of our common stock by means of at-the-market offerings from time to time (the "ATM
Program").

       During the year ended December 31, 2017, we sold 3,944,972 shares of our common stock at a weighted-average price of $38.72 per share and raised $152.8 million of
gross proceeds under the ATM

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Program. Net proceeds were $150.9 million after commissions to the selling agents on shares sold and offering costs.

       During the year ended December 31, 2018, we sold 2,060,019 shares of our common stock at a weighted-average price of $38.48 per share and raised $79.3 million of
gross proceeds under the ATM Program. Net proceeds were $78.0 million after commissions to the selling agents on shares sold and offering costs.

       During the year ended December 31, 2019, we sold 2,247,187 shares of our common stock at a weighted-average price of $40.05 per share and raised $90.0 million of
gross proceeds under the ATM Program. Net proceeds were $88.8 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2019,
8,359,150 shares remained available for sale under the ATM Program. As of December 31, 2019, sales transactions representing 11,596 shares had not settled and were not
included in shares issued and outstanding on the face of the consolidated balance sheet, but were included in the weighted-average shares outstanding in the consolidated
statements of operations and in the shares used to calculate net asset value per share.

       We anticipate that we will continue to fund our investment activities through existing cash and cash equivalents, cash flows generated through our ongoing operating
activities, utilization of available borrowings under our Credit Facility, and a combination of future issuances of debt and equity capital. Our primary uses of funds will be
investments in portfolio companies, operating expenses and cash distributions to holders of our common stock.

       We periodically invest excess cash balances into marketable securities and idle funds investments. The primary investment objective of marketable securities and idle funds
investments is to generate incremental cash returns on excess cash balances prior to utilizing those funds for investment in our LMM, Middle Market and Private Loan portfolio
investments. Marketable securities and idle funds investments generally consist of debt investments, independently rated debt investments, certificates of deposit with financial
institutions, diversified bond funds and publicly traded debt and equity investments.

       If our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our stockholders
approve such a sale and our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then
current net asset value per share of our common stock at our 2019 annual meeting of stockholders because our common stock price per share had been trading significantly
above the net asset value per share of our common stock since 2011. We would therefore need future approval from our stockholders to issue shares below the then current net
asset value per share.

       In order to satisfy the Code requirements applicable to a RIC, we intend to distribute to our stockholders, after consideration and application of our ability under the Code to
carry forward certain excess undistributed taxable income from one tax year into the next tax year, substantially all of our taxable income. In addition, as a BDC, we generally
are required to meet a coverage ratio of total assets to total senior securities, which include borrowings and any preferred stock we may issue in the future, of at least 200% (or
150% if certain requirements are met). This requirement limits the amount that we may borrow. In January 2008, we received an exemptive order from the SEC to exclude
SBA-guaranteed debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940
Act as applicable to us, which, in turn, enables us to fund more investments with debt capital.

       Although we have been able to secure access to additional liquidity, including through the Credit Facility, public debt issuances, leverage available through the SBIC
program and equity offerings, there is no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

Recently Issued or Adopted Accounting Standards

       In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the
revenue recognition requirements under ASC 605,

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Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the guidance is that an entity should recognize
revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for
those goods or services. Under the guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the performance
obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when
(or as) the entity satisfies a performance obligation. The guidance significantly enhances comparability of revenue recognition practices across entities, industries, jurisdictions
and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In March 2016, the
FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which
clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers
(Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements.
In May 2016, the FASB issued ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which
clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. In December 2016, the FASB issued ASU
No. 2016-20, Revenue from Contracts with Customers (Topic 606) — Technical Corrections and Improvements, which provided disclosure relief, and clarified the scope and
application of the new revenue standard and related cost guidance. The guidance was effective for the annual reporting period beginning after December 15, 2017, including
interim periods within that reporting period. Substantially all of our income is outside the scope of ASU 2014-09. For those income items that are within the scope (primarily
fee income), we have similar performance obligations as compared with deliverables and separate units of account previously identified. As a result, our timing of income
recognition remains the same and the adoption of the standard did not have a material impact on the consolidated financial statements.

       In February 2016, the FASB issued ASU 2016-02, Leases, which amended the FASB Accounting Standards Codification and created ASC 842, Leases ("ASC 842"), to
require lessees to recognize on the balance sheet a right-of-use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with
terms greater than 12 months, utilizing a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply.
The guidance in ASC 842 also requires qualitative and quantitative disclosures designed to assess the amount, timing and uncertainty of cash flows arising from leases. We
adopted ASC 842 effective January 1, 2019. Under ASC 842, we evaluate leases to determine if the leases are considered financing or operating leases. We currently have one
operating lease for office space for which we have recorded a right-of-use asset and lease liability for the operating lease obligation. Non-lease components (maintenance,
property tax, insurance and parking) are not included in the lease cost. The lease asset is presented as a single lease cost that is amortized on a straight-line basis over the life of
the lease.

       In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), which is intended to reduce the existing diversity in practice in how certain cash
receipts and cash payments are presented and classified in the statement of cash flows. The guidance was effective for annual periods beginning after December 15, 2017, and
interim periods therein. We adopted ASU 2016-15 effective January 1, 2018. The impact of the adoption of this accounting standard on our consolidated financial statements
was not material.

       In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820), which is intended to improve fair value and defined benefit disclosure requirements
by removing disclosures that are not cost-beneficial, clarifying disclosures' specific requirements, and adding relevant disclosure requirements. The amendments take effect for
all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. We elected to early adopt ASU
2018-13 during the year ended December 31, 2018. No significant changes to our fair value disclosures were necessary in the notes to the consolidated financial statements in
order to comply with ASU 2018-13.

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       In August 2018, the SEC adopted rules (the "SEC Release") amending certain disclosure requirements intended to eliminate redundant, duplicative, overlapping, outdated
or superseded, in light of other SEC disclosure requirements, U.S. GAAP requirements or changes in the information environment. In part, the SEC Release requires an
investment company to present distributable earnings in total on the consolidated balance sheet and consolidated statement of changes in net assets, rather than showing the
three components of distributable earnings as previously shown. We adopted this part of the SEC Release during the year ended December 31, 2018. The impact of the adoption
of these rules on our consolidated financial statements was not material. Additionally, the SEC Release requires disclosure of changes in net assets within a registrant's
Form 10-Q filing on a quarter-to-date and year-to-date basis for both the current year and prior year comparative periods. We adopted the new requirement to present changes in
net assets in interim financial statements within Form 10-Q filings effective January 1, 2019. The adoption of these rules did not have a material impact on the consolidated
financial statements.

       From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by us as of the specified effective date. We
believe that the impact of recently issued standards and any that are not yet effective will not have a material impact on our consolidated financial statements upon adoption.

Inflation

       Inflation has not had a significant effect on our results of operations in any of the reporting periods presented herein. However, our portfolio companies have experienced,
and may in the future experience, the impacts of inflation on their operating results, including periodic escalations in their costs for labor, raw materials and third-party services
and required energy consumption.

Off-Balance Sheet Arrangements

       We may be a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financial needs of our portfolio companies. These
instruments include commitments to extend credit and fund equity capital and involve, to varying degrees, elements of liquidity and credit risk in excess of the amount
recognized in the balance sheet. At December 31, 2019, we had a total of $120.4 million in outstanding commitments comprised of (i) 37 investments with commitments to fund
revolving loans that had not been fully drawn or term loans with additional commitments not yet funded and (ii) 10 investments with equity capital commitments that had not
been fully called.

Contractual Obligations

       As of December 31, 2019, the future fixed commitments for cash payments in connection with our SBIC debentures, the 4.50% Notes due 2022, the 5.20% Notes and rent
obligations under our office lease for each of the next five years and thereafter are as follows:

2020

2021

2022

2023

2024

  Thereafter

Total

SBIC debentures
Interest due on SBIC debentures
4.50% Notes due 2022
Interest due on 4.50% Notes due 2022
5.20% Notes due 2024
Interest due on 5.20% Notes
Operating Lease Obligation(1)
Total

  $ 37,000  $ 40,000  $

5,000  $ 16,000  $ 63,800  $ 150,000  $ 311,800 
59,964 
6,418 
8,248 
  185,000 
— 
  185,000 
24,975 
— 
8,325 
  325,000 
— 
— 
76,050 
8,450 
16,900 
6,561 
818 
790 
  $ 74,258  $ 75,261  $ 224,263  $ 41,572  $ 79,486  $ 494,510  $ 989,350 

16,899 
— 
— 
  325,000 
— 
2,611 

  11,271 
— 
8,325 
— 
  16,900 
762 

7,868 
— 
— 
— 
  16,900 
804 

9,260 
— 
8,325 
— 
  16,900 
776 

(1)

Operating Lease Obligation means a rent payment obligation under a lease classified as an operating lease and disclosed pursuant to ASC 842, as may
be modified or supplemented.

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       As of December 31, 2019, we had $300.0 million in borrowings outstanding under our Credit Facility, and the Credit Facility is currently scheduled to mature in September
2023. The Credit Facility contains two, one-year extension options which could extend the maturity to September 2025, subject to lender approval. See further discussion of the
Credit Facility terms in "— Liquidity and Capital Resources — Capital Resources."

Related Party Transactions

       As discussed further above, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of our Investment Portfolio.
At December 31, 2019, we had a receivable of approximately $2.7 million due from the External Investment Manager which included approximately $1.6 million primarily
related to operating expenses incurred by us as required to support the External Investment Manager's business and amounts due from the External Investment Manager to Main
Street under a tax sharing agreement (see further discussion above in "— Critical Accounting Policies — Income Taxes") and approximately $1.1 million of dividends declared
but not paid by the External Investment Manager.

       In November 2015, our Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015 Deferred Compensation
Plan"). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously
adopted by the Board of Directors in June 2013 (the "2013 Deferred Compensation Plan"). Under the 2015 Deferred Compensation Plan, non-employee directors and certain
key employees may defer receipt of some or all of their cash compensation and directors' fees, subject to certain limitations. Individuals participating in the 2015 Deferred
Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct
investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31,
2019, $8.0 million of compensation and directors' fees had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013
Deferred Compensation Plan). Of this amount, $4.2 million was deferred into phantom Main Street stock units, representing 119,064 shares of our common stock. Including
phantom stock units issued through dividend reinvestment and net of any shares distributed, the phantom stock units outstanding as of December 31, 2019 represented 150,955
shares of our common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included as outstanding on the
consolidated statements of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but the related phantom stock units are
included in weighted-average shares outstanding with the related dollar amount of the deferral included in total expenses in Main Street's consolidated statements of operations
as earned. The dividend amounts related to additional phantom stock units are included in the statement of changes in net assets as an increase to dividends to stockholders
offset by a corresponding increase to additional paid-in capital.

Recent Developments

       During February 2020, we declared regular monthly dividends of $0.205 per share for each month of April, May and June 2020. These regular monthly dividends equal a
total of $0.615 per share for the second quarter of 2020 and represent a 2.5% increase from the dividends declared for the second quarter of 2019. Including the dividends
declared for the second quarter of 2020, we will have paid $28.370 per share in cumulative dividends since our October 2007 initial public offering.

    Item 7A.    Quantitative and Qualitative Disclosures about Market Risk 

       We are subject to financial market risks, including changes in interest rates. Changes in interest rates may affect both our interest expense on the debt outstanding under our
Credit Facility and our interest income from portfolio investments. Our risk management systems and procedures are designed to identify and analyze our risk, to set
appropriate policies and limits and to continually monitor these risks. Our investment

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income will be affected by changes in various interest rates, including LIBOR and prime rates, to the extent that any debt investments include floating interest rates. See "Risk
Factors — Risks Relating to Our Business and Structure — The interest rates of our floating-rate loans to our portfolio companies and for any of our borrowings that extend
beyond 2021 might be subject to change based on recent regulatory changes." for more information regarding risks associated with our debt investments and borrowings that
utilize LIBOR as a reference rate.

       The majority of our debt investments are made with either fixed interest rates or floating-rates that are subject to contractual minimum interest rates for the term of the
investment. As of December 31, 2019, approximately 74% of our debt investment portfolio (at cost) bore interest at floating rates, 88% of which were subject to contractual
minimum interest rates. Our interest expense will be affected by changes in the published LIBOR rate in connection with our Credit Facility; however, the interest rates on our
outstanding SBIC debentures, 4.50% Notes due 2022 and 5.20% Notes, which collectively comprise the majority of our outstanding debt, are fixed for the life of such debt. As
of December 31, 2019, we had not entered into any interest rate hedging arrangements. Due to our limited use of derivatives, we have claimed an exclusion from the definition
of the term "commodity pool operator" under the Commodity Exchange Act and, therefore, are not subject to registration or regulation as a pool operator under such Act. The
following table shows the approximate annualized increase or decrease in the components of net investment income due to hypothetical base rate changes in interest rates,
assuming no changes in our investments and borrowings as of December 31, 2019.

Basis Point Change

(200)
(175)
(150)
(125)
(100)
(75)
(50)
(25)
25
50
100
200

Increase
(Decrease)
in Interest
Income

(Increase)
Decrease
in Interest
Expense

Increase
(Decrease) in Net
Investment
Income

Increase
(Decrease) in Net
Investment
Income per Share

(dollars in thousands)

  $ (13,324) $
(13,175)  
(12,724)  
(12,236)  
(11,734)  
(10,017)  
(6,747)  
(3,414)  
3,455 
7,007 
14,112 
28,322 

5,288  $
5,250 
4,500 
3,750 
3,000 
2,250 
1,500 
750 
(750)  
(1,500)  
(3,000)  
(6,000)  

(8,036) $
(7,925)  
(8,224)  
(8,486)  
(8,734)  
(7,767)  
(5,247)  
(2,664)  
2,705 
5,507 
11,112 
22,322 

(0.13)
(0.12)
(0.13)
(0.13)
(0.14)
(0.12)
(0.08)
(0.04)
0.04 
0.09 
0.17 
0.35 

       The hypothetical results assume that all LIBOR and prime rate changes would be effective on the first day of the period. However, the contractual LIBOR and prime rate
reset dates would vary throughout the period, on either a monthly or quarterly basis, for both our investments and our Credit Facility. The hypothetical results would also be
impacted by the changes in the amount of debt outstanding under our Credit Facility (with an increase (decrease) in the debt outstanding under the Credit Facility resulting in
an (increase) decrease in the hypothetical interest expense).

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  Item 8.    Consolidated Financial Statements and Supplementary Data 

Index to Consolidated Financial Statements 

Reports of Independent Registered Public Accounting Firm
Consolidated Balance Sheets as of December 31, 2019 and 2018
Consolidated Statements of Operations for the Years Ended December 31, 2019, 2018 and 2017
Consolidated Statements of Changes in Net Assets for the Years Ended December 31, 2019, 2018 and 2017
Consolidated Statements of Cash Flows for the Years Ended December 31, 2019, 2018 and 2017
Consolidated Schedules of Investments as of December 31, 2019 and 2018
Notes to Consolidated Financial Statements

78
81
82
83
84
85
  143

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Board of Directors and Stockholders
Main Street Capital Corporation

Opinion on the financial statements

 Report of Independent Registered Public Accounting Firm

       We have audited the accompanying consolidated balance sheets of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company"), including
the consolidated schedule of investments, as of December 31, 2019 and 2018, the related consolidated statements of operations, changes in net assets, and cash flows for each of
the three years in the period ended December 31, 2019, and the related notes, schedule and financial highlights (collectively referred to as the "financial statements"). In our
opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2019 and 2018, and the results of its
operations and its cash flows for each of the three years in the period ended December 31, 2019, in conformity with accounting principles generally accepted in the United States
of America.

       We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"), the Company's internal control
over financial reporting as of December 31, 2019, based on criteria established in the 2013 Internal Control — Integrated Framework issued by the Committee of Sponsoring
Organizations of the Treadway Commission ("COSO"), and our report dated February 28, 2020 expressed an unqualified opinion.

Basis for opinion

       These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on
our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal
securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

       We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material
misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test
basis, evidence supporting the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates
made by management, as well as evaluating the overall presentation of the financial statements. Our procedures included verification by confirmation of securities as of
December 31, 2019 and 2018, by correspondence with the portfolio companies and custodians, or by other appropriate auditing procedures where replies were not received. We
believe that our audits provide a reasonable basis for our opinion.

Critical audit matters

       The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that were communicated or required
to be communicated to the Audit Committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially
challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken
as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which
it relates.

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Fair Value Investments

       As described further in Note C to the consolidated financial statements, the Company's consolidated fair value balance of total investments was $2,602,323,527 at
December 31, 2019. Investment values are generally based on prices or valuation techniques that require inputs that are significant to the overall fair value measurement, and
are observable in non-active markets or unobservable. The determination of the fair value of investments requires management to make significant estimates and assumptions in
the determination of fair value. As disclosed by management, changes in these assumptions could have a significant impact on the determination of fair value. As such, we
identified fair value of investments as a critical audit matter.

       The principal considerations for our determination that the fair value of investments was a critical audit matter are that they relate to material accounts to the financial
statements and involve complex judgment.

       The primary procedures we performed to address this critical audit matter included:

•

•

Testing the design and operating effectiveness of controls over management's process to determine investment fair value. Specifically, we identified and tested
key attributes of management's fair value determination review. These attributes addressed the relevance, adequacy and appropriateness of the data, assumptions,
valuation methods, and mathematical accuracy used to determine investment fair value. 

With the assistance of internal valuation specialists, we performed substantive audit procedures to determine that the data, methods, and assumptions used to
determine investment fair value was reasonable. Certain key inputs/assumptions tested by us included the following: 

•

•

•

•

•

•

•

•

enterprise values, 

weighted average cost of capital ("WACC"), 

discount rates, 

forecasted cash flows, 

market multiples, 

weighting between valuation techniques, 

risk adjusted discount factor, and 

third party quotes 

•

Testing the fair value calculation of the investment portfolio for mathematical accuracy.

/s/ GRANT THORNTON LLP

We have served as the Company's auditor since 2007.
Houston, Texas
February 28, 2020

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Board of Directors and Stockholders
Main Street Capital Corporation

Opinion on internal control over financial reporting

Report of Independent Registered Public Accounting Firm 

       We have audited the internal control over financial reporting of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company") as of
December 31, 2019, based on criteria established in the 2013 Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway
Commission ("COSO"). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2019, based on
criteria established in the 2013 Internal Control — Integrated Framework issued by COSO.

       We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"), the consolidated financial
statements of the Company as of and for the year ended December 31, 2019, and our report dated February 28, 2020 expressed an unqualified opinion on those financial
statements.

Basis for opinion

       The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control
over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the
Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with
respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the
PCAOB.

       We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over
financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk,
and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and limitations of internal control over financial reporting

       A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting
includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of
the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with
generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and
directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets
that could have a material effect on the financial statements.

       Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to
future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures
may deteriorate.

/s/ GRANT THORNTON LLP

Houston, Texas
February 28, 2020

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MAIN STREET CAPITAL CORPORATION 

Consolidated Balance Sheets 

(dollars in thousands, except shares and per share amounts) 

ASSETS

Investments at fair value:

Control investments (cost: $778,367 and $750,618 as of December 31, 2019 and December 31, 2018,

respectively)

  $ 1,032,721  $ 1,004,993 

Affiliate investments (cost: $351,764 and $381,307 as of December 31, 2019 and December 31,

December 31,
2019

December 31,
2018

2018, respectively)

Non-Control/Non-Affiliate investments (cost: $1,297,587 and $1,137,108 as of December 31, 2019

and December 31, 2018, respectively)                         
Total investments (cost: $2,427,718 and $2,269,033 as of December 31, 2019 and December 31,

2018, respectively)

Cash and cash equivalents
Interest receivable and other assets
Receivable for securities sold
Deferred financing costs (net of accumulated amortization of $7,501 and $6,562 as of December 31,

2019 and December 31, 2018, respectively)

Total assets

LIABILITIES

Credit facility

330,287 

359,890 

1,239,316 

1,089,026 

2,602,324 

2,453,909 

55,246 
50,458 
— 

54,181 
39,674 
1,201 

4,461 
  $ 2,711,549  $ 2,553,426 

3,521 

  $

300,000  $

301,000 

SBIC debentures (par: $311,800 ($37,000 due within one year) and $345,800 as of December 31, 2019

and December 31, 2018, respectively)                         

5.20% Notes due 2024 (par: $325,000 as of December 31, 2019)
4.50% Notes due 2022 (par: $185,000 as of both December 31, 2019 and December 31, 2018)
4.50% Notes due 2019 (par: $175,000 as of December 31, 2018)
Accounts payable and other liabilities
Payable for securities purchased
Interest payable
Dividend payable
Deferred tax liability, net
Total liabilities

306,188 
324,595 
183,229 
— 
24,532 
— 
7,292 
13,174 
16,149 
1,175,159 

338,186 
— 
182,622 
174,338 
17,962 
28,254 
6,041 
11,948 
17,026 
1,077,377 

Commitments and contingencies (Note K)

NET ASSETS

Common stock, $0.01 par value per share (150,000,000 shares authorized; 64,241,341 and 61,264,861

shares issued and outstanding as of December 31, 2019 and December 31, 2018, respectively)

Additional paid-in capital
Total undistributed earnings
Total net assets
Total liabilities and net assets
NET ASSET VALUE PER SHARE

643 
1,512,435 
23,312 
1,536,390 

613 
1,409,945 
65,491 
1,476,049 
  $ 2,711,549  $ 2,553,426 
24.09 
  $

23.91  $

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION 

Consolidated Statements of Operations 

(dollars in thousands, except shares and per share amounts) 

  $

INVESTMENT INCOME:

Interest, fee and dividend income:

Control investments
Affiliate investments
Non-Control/Non-Affiliate investments

Total investment income

EXPENSES:
Interest
Compensation
General and administrative
Share-based compensation
Expenses allocated to the External Investment Manager

Total expenses

NET INVESTMENT INCOME
NET REALIZED GAIN (LOSS):

Control investments
Affiliate investments
Non-Control/Non-Affiliate investments
Realized loss on extinguishment of debt

Total net realized gain (loss)

NET UNREALIZED APPRECIATION (DEPRECIATION):

Control investments
Affiliate investments
Non-Control/Non-Affiliate investments
SBIC debentures

Total net unrealized appreciation (depreciation)                    

INCOME TAXES:

Federal and state income, excise and other taxes
Deferred taxes

Income tax provision

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS
NET INVESTMENT INCOME PER SHARE — BASIC AND DILUTED
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER

SHARE — BASIC AND DILUTED

  $

  $

  $

Twelve Months Ended December 31,
2018

2019

2017

92,414  $
34,732 
116,227 
243,373 

(50,258)  
(19,792)  
(12,546)  
(10,083)  
6,672 
(86,007)  
157,366 

4,797 
(565)  
(19,344)  
(5,689)  
(20,801)  

(980)  
990 
(10,214)  
4,450 
(5,754)  

85,853  $
36,800 
110,702 
233,355 

(43,493)  
(18,966)  
(11,868)  
(9,151)  
6,768 
(76,710)  
156,645 

4,681 
20 
(3,360)  
(2,896)  
(1,555)  

37,826 
12,062 
(31,907)  
1,294 
19,275 

(3,546)  
2,304 
(1,242)  
129,569  $

(319)  
(5,833)  
(6,152)  
168,213  $

2.50  $

2.60  $

62,762 
37,509 
105,470 
205,741 

(36,479)
(18,560)
(11,674)
(10,027)
6,370 
(70,370)
135,371 

259 
8,044 
7,879 
(5,217)
10,965 

63,627 
(11,330)
(9,752)
6,212 
48,757 

(5,206)
(19,265)
(24,471)
170,622 

2.39 

2.06  $

2.80  $

3.01 
  56,691,913 

WEIGHTED AVERAGE SHARES OUTSTANDING — BASIC AND DILUTED  

  62,960,591 

  60,176,843 

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION 

Consolidated Statements of Changes in Net Assets 

(dollars in thousands, except shares) 

Common Stock

Number of
Shares

Par
Value

Additional
Paid-In
Capital

Total
Undistributed
Earnings

Total Net
Asset Value

Balances at December 31, 2016
Public offering of common stock, net of offering costs
Share-based compensation
Purchase of vested stock for employee payroll tax withholding
Investment through issuance of unregistered shares
Dividend reinvestment
Amortization of directors' deferred compensation
Issuance of restricted stock
Dividends to stockholders
Net increase resulting from operations
Balances at December 31, 2017
Public offering of common stock, net of offering costs
Share-based compensation
Purchase of vested stock for employee payroll tax withholding
Dividend reinvestment
Amortization of directors' deferred compensation
Issuance of restricted stock, net of forfeited shares
Dividends to stockholders
Net increase resulting from operations
Balances at December 31, 2018

Public offering of common stock, net of offering costs
Share-based compensation
Purchase of vested stock for employee payroll tax withholding
Dividend reinvestment
Amortization of directors' deferred compensation
Issuance of restricted stock, net of forfeited shares
Dividends to stockholders
Reclassification for certain permanent book-to-tax differences
Net increase resulting from operations
Balances at December 31, 2019

  54,354,857  $ 543  $ 1,143,883  $
40 
  3,947,165 
  — 
— 

(1)  

(113,371)  
11,464 
234,513 
— 
226,052 
— 
— 

  — 
2 
  — 
2 
  — 
  — 

(109,693)  
394,403 
— 
250,368 
— 
— 

(1)  
4 
  — 
3 
  — 
  — 

150,946 
10,027 
(4,350)  
442 
9,154 
680 

(2)  
— 
— 

78,373 
9,151 
(4,076)  
14,870 
850 

(3)  
— 
— 

  58,660,680  $ 586  $ 1,310,780  $
  2,069,103 
21 
  — 
— 

  61,264,861  $ 613  $ 1,409,945  $
23 
  2,259,729 

89,246 

— 

  — 

(103,730)  
441,927 
— 
390,150 
— 
— 
— 

(1)  
4 
  — 
4 
  — 
  — 
  — 

10,083 
(3,941)  
18,081 
866 

(4)  

401 
(12,242)  

— 

  64,252,937  $ 643  $ 1,512,435  $

— 
— 
— 
— 
— 
— 
— 

57,055  $ 1,201,481 
150,986 
10,027 
(4,351)
442 
9,156 
680 
— 
(158,675)
(158,675)  
170,622 
170,622 
69,002  $ 1,380,368 
78,394 
9,151 
(4,077)
14,874 
850 
— 
(171,724)
(171,724)  
168,213 
168,213 
65,491  $ 1,476,049 
89,269 

— 
— 
— 
— 
— 
— 

— 

— 
— 
— 
— 
— 

10,083 
(3,942)
18,085 
866 
— 
(183,589)
(183,990)  
— 
12,242 
129,569 
129,569 
23,312  $ 1,536,390 

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION 

Consolidated Statements of Cash Flows 

(dollars in thousands) 

CASH FLOWS FROM OPERATING ACTIVITIES
Net increase in net assets resulting from operations
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided

by (used in) operating activities:
Investments in portfolio companies
Proceeds from sales and repayments of debt investments in portfolio companies
Proceeds from sales and return of capital of equity investments in portfolio companies
Net unrealized (appreciation) depreciation
Net realized (gain) loss
Accretion of unearned income
Payment-in-kind interest
Cumulative dividends
Share-based compensation expense
Amortization of deferred financing costs
Deferred tax (benefit) provision
Changes in other assets and liabilities:
Interest receivable and other assets
Interest payable
Accounts payable and other liabilities
Deferred fees and other

Net cash provided by (used in) operating activities

Twelve Months Ended December 31,
2017
2018
2019

  $ 129,569  $ 168,213  $ 170,622 

  (664,062)   (962,456)   (876,744)
  737,297 
  626,059 
  439,363 
82,128 
38,536 
77,103 
(48,757)
(19,275)  
5,754 
(10,965)
1,555 
20,801 
(17,008)
(14,724)  
(12,070)  
(4,884)
(2,304)  
(5,018)  
(3,226)
(2,301)  
(2,382)  
10,027 
9,151 
10,083 
2,784 
3,299 
3,717 
19,265 
5,833 
(2,304)  

(6,680)  
1,251 
7,436 
2,172 

(2,276)  
768 
(1,356)  
3,645 

(33,834)   (109,066)  

2,080 
1,170 
6,643 
2,470 
72,902 

CASH FLOWS FROM FINANCING ACTIVITIES

Proceeds from public offering of common stock, net of offering costs
Proceeds from public offering of 4.50% Notes due 2022
Proceeds from public offering of 5.20% Notes due 2024
Dividends paid
Proceeds from issuance of SBIC debentures
Repayments of SBIC debentures
Redemption of 6.125% Notes
Redemption of 4.50% Notes due 2019
Proceeds from credit facility
Repayments on credit facility
Payment of deferred issuance costs and SBIC debenture fees
Purchases of vested stock for employee payroll tax withholding
Net cash provided by (used in) financing activities

Net increase in cash and cash equivalents
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD
CASH AND CASH EQUIVALENTS AT END OF PERIOD
Supplemental cash flow disclosures:
Interest paid
Taxes paid
Operating non-cash activities:
Right-of-use assets obtained in exchange for operating lease liabilities
Non-cash financing activities:
Shares issued pursuant to the DRIP

— 

— 

(34,000)  

78,394 
— 
— 

54,000 
(4,000)  
(90,655)  

  150,986 
89,269 
  185,000 
— 
  325,000 
— 
  (164,278)   (156,048)   (148,421)
81,000 
(25,200)
— 
— 
— 
  (175,000)  
  639,000 
  448,000 
  632,000 
  (640,000)   (395,000)   (727,000)
(5,868)
(4,351)
(45,854)
27,048 
24,480 
51,528 

(1,150)  
(3,942)  
34,899 
1,065 
54,181 
55,246  $

  111,719 
2,653 
51,528 
54,181  $

(2,895)  
(4,077)  

  $

  $
  $

45,167  $
2,300  $

39,300  $
5,112  $

32,411 
2,398 

  $

5,240  $

—  $

— 

  $

18,085  $

14,874  $

9,156 

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION 

Consolidated Schedule of Investments 

December 31, 2019
(dollars in thousands) 

Portfolio Company(1)(20)

Control Investments(5)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Access Media Holdings, LLC(10)

July 22, 2015   Private Cable Operator

10% PIK Secured Debt (Maturity —

July 22, 2020)(14)(19)

  $

23,828  $ 23,828  $

6,387 

ASC Interests, LLC

August 1,
2013

  Recreational and Educational

Shooting Facility

Analytical Systems Keco, LLC

August 16,
2019

  Manufacturer of Liquid and Gas

Analyzers

ATS Workholding, LLC(10)

  March 10,

  Manufacturer of Machine Cutting

2014

Tools and Accessories

Preferred Member Units (9,481,500

units)(27)

  Member Units (45 units)

11.00% Secured Debt (Maturity —

July 31, 2020)

  Member Units (1,500 units)

LIBOR Plus 10.00% (Floor 2.00%),
Current Coupon 12.13%, Secured
Debt (Maturity — August 16, 2024)
(9)

  Preferred Member Units (3,200 units)  

Warrants (420 equivalent shares;
Expiration — August 16, 2029;
Strike price — $0.01 per share)

5% Secured Debt (Maturity —

November 16, 2021)

Preferred Member Units (3,725,862

units)

9,375 

1 

  33,204 

1,650 

1,639 

1,500 

3,139 

5,565 

5,210 

3,200 

316 

8,726 

4,919 

4,666 

3,726 

8,392 

(284)

— 

6,103 

1,639 

1,290 

2,929 

5,210 

3,200 

316 

8,726 

4,521 

939 

5,460 

Bond-Coat, Inc.

  December 28,

  Casing and Tubing Coating

2012

Services

Brewer Crane Holdings, LLC

January 9,
2018

  Provider of Crane Rental and

Operating Services

15.00% Secured Debt (Maturity —

December 28, 2020)

  Common Stock (57,508 shares)

11,596 

  11,473 

6,350 

  17,823 

11,473 

8,300 

19,773 

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 11.71%, Secured
Debt (Maturity — January 9, 2023)
(9)

Preferred Member Units (2,950 units)

(8)

9,052 

8,989 

8,989 

4,280 

  13,269 

4,280 

13,269 

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Bridge Capital Solutions

Corporation

Investment
Date(26)

April 18,
2012

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Financial Services and Cash Flow

Solutions Provider

13.00% Secured Debt (Maturity —

December 11, 2024)

Warrants (82 equivalent shares;

Expiration — July 25, 2026; Strike
price — $0.01 per share)

13.00% Secured Debt (Mercury

Service Group, LLC) (Maturity —
December 11, 2024)

Preferred Member Units (Mercury

Service Group, LLC) (17,742 units)
(8)

8,813 

7,797 

7,797 

2,132 

3,500 

1,000 

996 

996 

1,000 

  11,925 

1,000 

13,293 

  Member Units (1,233 units)(8)

1,742 

2,440 

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.13%, Secured
Debt (Maturity — March 30, 2023)
(9)

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.13%, Secured
Debt (Maturity — March 30, 2023)
(9)

Preferred Member Units (6,725 units)

(8)

Preferred Member Units (6,157 units)

(8)

7,229 

7,104 

7,104 

28,000 

  27,801 

27,801 

7,163 

7,163 

  10,775 

  52,843 

7,382 

49,450 

  Member Units (416 units)(8)

1,300 

50,850 

Café Brazil, LLC

April 20,
2004

Casual Restaurant Group

California Splendor Holdings LLC   March 30,

2018

Processor of Frozen Fruits

CBT Nuggets, LLC ("CBT")

June 1, 2006   Produces and Sells IT Training

Certification Videos

Centre Technologies Holdings, LLC 

January 4,
2019

  Provider of IT Hardware Services

and Software Solutions

Chamberlin Holding LLC

  February 26,

2018

  Roofing and Waterproofing
Specialty Contractor

LIBOR Plus 9.00% (Floor 2.00%),
Current Coupon 10.75%, Secured
Debt (Maturity — January 4, 2024)
(9)

Preferred Member Units (12,696

units)

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.00%, Secured
Debt (Maturity — February 26,
2023)(9)

  Member Units (4,347 units)(8)

Member Units (Chamberlin Langfield
Real Estate, LLC) (1,047,146 units)
(8)

86

12,240 

  12,136 

12,136 

5,840 

  17,976 

5,840 

17,976 

17,773 

  17,649 

  11,440 

1,047 

  30,136 

17,773 

24,040 

1,450 

43,263 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Charps, LLC

Investment
Date(26)

February 3,
2017

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Pipeline Maintenance and

Construction

15.00% Secured Debt (Maturity —

June 5, 2022)

Preferred Member Units (1,600 units)

(8)

2,000 

2,000 

400 

2,400 

2,000 

6,920 

8,920 

LIBOR Plus 9.00% (Floor 1.00%),
Current Coupon 10.71%, Secured
Debt (Maturity — December 20,
2021)(9)

  Member Units (717 units)(8)

10.00% Secured Debt (Clad-Rex Steel
RE Investor, LLC) (Maturity —
December 20, 2036)

Member Units (Clad-Rex Steel RE

Investor, LLC) (800 units)

10,880 

  10,830 

7,280 

10,781 

9,630 

1,137 

1,126 

1,137 

210 

  19,446 

460 

22,008 

Member Units (CMS Minerals

II, LLC) (100 units)(8)

2,386 

1,900 

LIBOR Plus 11.00% (Floor 1.00%),
Current Coupon 12.75%, Secured
Debt (Maturity — January 29,
2024)(9)

  Preferred Member Units (1,975 units)  

8,364 

8,288 

1,975 

  10,263 

8,288 

3,010 

11,298 

LP Interests (CTMH, LP) (Fully

diluted 38.8%)

872 

872 

8.00% Secured Debt (Maturity —

May 31, 2021)(14)

10.50% PIK Secured Debt

(Maturity — May 31, 2021)(14)
(19)

  Class A Preferred Member Units
Class B Preferred Member Units

(6,453 units)

1,800 

1,800 

1,615 

12,507 

  12,475 

10,142 

1,294 

6,030 

— 

— 

  21,599 

11,757 

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 11.75%, Secured
Debt (Maturity — April 1, 2023)(9)  

Preferred Member Units (3,857

shares)(8)

19,620 

  19,478 

18,452 

9,501 

  28,979 

5,174 

23,626 

Clad-Rex Steel, LLC

  December 20,

  Specialty Manufacturer of Vinyl-

2016

Clad Metal

CMS Minerals Investments

January 30,
2015

  Oil & Gas Exploration &

Production

CompareNetworks Topco, LLC

January 29,
2019

Internet Publishing and Web

Search Portals

Copper Trail Fund Investments(12)

July 17, 2017  

(13)

Investment Partnership

Datacom, LLC

  May 30, 2014   Technology and

Telecommunications Provider

Digital Products Holdings LLC

  April 1, 2018   Designer and Distributor of

Consumer Electronics

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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Direct Marketing Solutions, Inc .

Investment
Date(26)

February 13,
2018

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Provider of Omni-Channel Direct

Marketing Services

Gamber-Johnson Holdings, LLC

June 24, 2016  Manufacturer of Ruggedized

("GJH")

Computer Mounting Systems

Garreco, LLC

July 15, 2013   Manufacturer and Supplier of

Dental Products

GRT Rubber Technologies LLC

  December 19,

  Manufacturer of Engineered

("GRT")

2014

Rubber Products

LIBOR Plus 11.00% (Floor 1.00%),
Current Coupon 12.75%, Secured
Debt (Maturity — February 13,
2023)(9)

  Preferred Stock (8,400 shares)

LIBOR Plus 6.50% (Floor 2.00%),
Current Coupon 8.50%, Secured
Debt (Maturity — June 24, 2021)
(9)

  Member Units (8,619 units)(8)

LIBOR Plus 8.00% (Floor 1.00%,
Ceiling 1.50%), Current Coupon
9.50%, Secured Debt (Maturity —
March 31, 2020)(9)

  Member Units (1,200 units)

15,717 

  15,597 

8,400 

  23,997 

15,707 

20,200 

35,907 

19,022 

  18,949 

  14,844 

  33,793 

19,022 

53,410 

72,432 

4,519 

4,515 

1,200 

5,715 

4,515 

2,560 

7,075 

LIBOR Plus 7.00%, Current Coupon
8.71%, Secured Debt (Maturity —
December 31, 2023)

  Member Units (5,879 units)

15,016 

  15,016 

  13,065 

  28,081 

15,016 

47,450 

62,466 

Guerdon Modular Holdings, Inc .

August 13,
2014

  Multi-Family and Commercial

Modular Construction Company  

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 10.60%, Secured
Debt (Maturity — October 1, 2019)
(9)(14)(17)

16.00% Secured Debt (Maturity —

1,010 

1,010 

October 1, 2019)(14)(17)

12,588 

  12,588 

  Preferred Stock (404,998 shares)

  Common Stock (212,033 shares)
Warrants (6,208,877 equivalent

shares; Expiration — April 25,
2028; Strike price — $0.01 per
share)

1,140 

2,983 

— 

  17,721 

— 

— 

— 

— 

— 

— 

  Member Units (438 units)(8)

2,980 

7,430 

88

Gulf Manufacturing, LLC

August 31,
2007

  Manufacturer of Specialty

Fabricated Industrial Piping
Products

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Gulf Publishing Holdings, LLC

Investment
Date(26)

April 29,
2016

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Energy Industry Focused Media

and Publishing

LIBOR Plus 9.50% (Floor 1.00%),
Current Coupon 11.21%, Secured
Debt (Maturity — September 30,
2020)(9)

12.50% Secured Debt (Maturity —

April 29, 2021)

  Member Units (3,681 units)

280 

280 

280 

12,535 

  12,493 

3,681 

  16,454 

12,493 

2,420 

15,193 

  Member units (100 units)

6,506 

9,560 

LP Interests (2717 MH, L.P.) (Fully

diluted 49.3%)

2,735 

3,157 

  Common Stock (107,456 shares)(8)

718 

7,970 

11.50% Secured Debt (Maturity —

November 15, 2020)

Preferred Member Units (5,607 units)

(8)

13,400 

  13,358 

13,400 

5,952 

  19,310 

15,040 

28,440 

Prime Plus 6.75% (Floor 2.00%),

Current Coupon 11.50%, Secured
Debt (Maturity — November 14,
2023)(9)

  Member Units (627 units)(8)

11.50% Secured Debt (Maturity —

October 31, 2024)

  Preferred Stock (2,814 shares)

4,000 

3,960 

811 

4,771 

17,600 

  17,430 

7,160 

  24,590 

4,000 

8,270 

12,270 

17,430 

7,160 

24,590 

  Member Units (325 units)(8)

783 

15,470 

11.50% Secured Debt (Maturity —

October 31, 2023)

  Member Units (581 units)

9.00% Secured Debt (Maturity —

October 31, 2048)

Member Units (KMC RE

Investor, LLC) (800 units)(8)

25,200 

  24,982 

  12,240 

24,982 

12,240 

3,978 

3,939 

3,939 

992 

  42,153 

1,160 

42,321 

Harborside Holdings, LLC

  March 20,

2017

Real Estate Holding Company

Harris Preston Fund
Investments(12)(13)

October 1,
2017

Investment Partnership

Harrison Hydra-Gen, Ltd.

June 4, 2010   Manufacturer of Hydraulic

Generators

IDX Broker, LLC

  November 15,

2013

  Provider of Marketing and CRM
Tools for the Real Estate
Industry

Jensen Jewelers of Idaho, LLC

  November 14,

2006

Retail Jewelry Store

J&J Services, Inc.

October 31,
2019

  Provider of Dumpster and Portable

Toilet Rental Services

KBK Industries, LLC

January 23,
2006

  Manufacturer of Specialty Oilfield

and Industrial Products

Kickhaefer Manufacturing

Company, LLC

October 31,
2018

  Precision Metal Parts
Manufacturing

89

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Market Force Information, LLC

July 28, 2017   Provider of Customer Experience

Management Services

8.00% Secured Debt (Maturity —

July 28, 2022)

6.00% Current / 6.00% PIK Secured
Debt (Maturity — July 28, 2022)
(19)

  Member Units (743,921 units)

2,786 

2,786 

2,695 

23,292 

  23,157 

  16,642 

  42,585 

22,621 

5,280 

30,596 

5.00% Current / 5.00% PIK Secured

Debt (Maturity — March 31, 2022)
(19)

Preferred Member Units (66,000

shares)

Preferred Member Units (4,000

shares)

10.00% Secured Debt (Maturity —

January 15, 2020)

12.00% Secured Debt (Maturity —

January 15, 2020)

  Member Units (7,874 units)

9.50% Secured Debt (Mid-Columbia
Real Estate, LLC) (Maturity —
May 13, 2025)

Member Units (Mid-Columbia Real

Estate, LLC) (500 units)(8)

8,890 

8,815 

4,400 

6,000 

  19,215 

1,750 

1,750 

3,900 

701 

3,898 

3,239 

701 

790 

  10,378 

8,890 

4,770 

20 

13,680 

1,602 

3,644 

— 

701 

1,640 

7,587 

Member Units (Fully diluted 100.0%)

(8)

— 

74,520 

12.00% Secured Debt (Maturity —

August 15. 2019)(17)

  Common Stock (5,873 shares)(8)

6,253 

6,253 

2,720 

8,973 

6,253 

8,410 

14,663 

  Member Units (2,955 units)(8)

2,975 

14,760 

11.00% Secured Debt (Maturity —

February 28, 2023)

Preferred Member Units (86,400,000

units)(8)

17,586 

  17,469 

17,469 

6,880 

  24,349 

6,310 

23,779 

MH Corbin Holding LLC

August 31,
2015

  Manufacturer and Distributor of
Traffic Safety Products

Mid-Columbia Lumber

  December 18,

  Manufacturer of Finger-Jointed

Products, LLC

2006

Lumber Products

MSC Adviser I, LLC(16)

  November 22,

  Third Party Investment Advisory

2013

Services

Mystic Logistics Holdings, LLC

August 18,
2014

  Logistics and Distribution

Services Provider for Large
Volume Mailers

NAPCO Precast, LLC

January 31,
2008

Precast Concrete Manufacturing

NexRev LLC

February 28,
2018

  Provider of Energy Efficiency
Products & Services

90

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

NRI Clinical Research, LLC

  September 8,

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

2011

Clinical Research Service Provider 

NRP Jones, LLC

  December 22,

  Manufacturer of Hoses, Fittings

2011

and Assemblies

14.00% Secured Debt (Maturity —

June 8, 2022)

Warrants (251,723 equivalent units;
Expiration — June 8, 2027; Strike
price — $0.01 per unit)

  Member Units (1,454,167 units)(8)

12.00% Secured Debt (Maturity —

March 20, 2023)

  Member Units (65,962 units)(8)

NuStep, LLC

January 31,
2017

  Designer, Manufacturer and

Distributor of Fitness Equipment 

12.00% Secured Debt (Maturity —

January 31, 2022)

  Preferred Member Units (406 units)

5,981 

5,885 

5,981 

252 

765 

6,902 

6,376 

6,376 

3,717 

  10,093 

19,800 

  19,703 

  10,200 

  29,903 

1,230 

4,988 

12,199 

6,376 

4,710 

11,086 

19,703 

10,200 

29,903 

OMi Holdings, Inc .

  April 1, 2008   Manufacturer of Overhead Cranes  

  Common Stock (1,500 shares)(8)

1,080 

16,950 

Pegasus Research Group, LLC

January 6,
2011

  Provider of Telemarketing and

Data Services

PPL RVs, Inc .

June 10, 2010  Recreational Vehicle Dealer

  Member Units (460 units)

1,290 

8,170 

LIBOR Plus 8.75% (Floor 0.50%),
Current Coupon 10.85%, Secured
Debt (Maturity — November 15,
2022)(9)

  Common Stock (1,962 shares)

12,245 

  12,118 

2,150 

  14,268 

12,118 

9,930 

22,048 

Principle Environmental, LLC

(d/b/a TruHorizon Environmental
Solutions)

February 1,
2011

Noise Abatement Service Provider  

13.00% Secured Debt (Maturity —

April 30, 2020)

Preferred Member Units (19,631

units)(8)

Warrants (1,018 equivalent units;
Expiration — January 31, 2021;
Strike price — $0.01 per unit)

6,397 

6,379 

6,397 

4,600 

13,390 

1,200 

  12,179 

1,090 

20,877 

Quality Lease Service, LLC

June 8, 2015   Provider of Rigsite

Accommodation Unit Rentals
and Related Services

  Member Units (1,000 units)

  11,013 

9,289 

91

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

River Aggregates, LLC

  March 30,

  Processor of Construction

2011

Aggregates

Zero Coupon Secured Debt

(Maturity — June 30, 2018)(17)

750 

  Member Units (1,150 units)

Member Units (RA Properties, LLC)

(1,500 units)

750 

1,150 

369 

2,269 

722 

4,990 

3,169 

8,881 

12.00% Secured Debt (Maturity —

August 31, 2020)

12.00% Secured Debt (Maturity —

August 31, 2023)

  Preferred Member Units (479 units)

640 

640 

640 

16,400 

  16,272 

8,136 

  25,048 

16,272 

8,136 

25,048 

9.00% Secured Debt (Maturity —

December 31, 2019)(17)

2,924 

  Series A Preferred Units (2,500 units)  

Warrants (1,424 equivalent units;

Expiration — July 1, 2024; Strike
price — $0.01 per unit)

Member Units (MPI Real Estate
Holdings, LLC) (100 units)(8)

2,924 

2,500 

1,096 

2,300 

8,820 

2,924 

— 

— 

1,640 

4,564 

12.00% Secured Debt (Maturity —

May 31, 2024)

  Common Stock (615 shares)(8)

9,200 

9,102 

4,655 

  13,757 

9,102 

4,655 

13,757 

13.00% Secured Debt (Maturity —

September 30, 2019)(17)

Series A Preferred Stock (3,000,000

shares)

  Common Stock (1,126,242 shares)

6.50% Secured Debt (Maturity —

October 1, 2020)

12.00% Secured Debt (Maturity —

October 1, 2020)

14.00% Secured Debt (Maturity —

October 1, 2020)

Warrants (587 equivalent units;

Expiration — October 1, 2020;
Strike price — $0.01 per unit)
Preferred Member Units (10,072

units)

2,028 

2,028 

3,000 

3,706 

8,734 

1,000 

1,000 

625 

625 

2,750 

2,750 

600 

2,834 

7,809 

  $ 778,367  $

2,028 

4,089 

409 

6,526 

1,000 

625 

2,750 

— 

1,269 

5,644 
1,032,721 

Tedder Industries, LLC

  August 31,

  Manufacturer of Firearm Holsters

2018

and Accessories

The MPI Group, LLC

  October 2,

2007

  Manufacturer of Custom Hollow
Metal Doors, Frames and
Accessories

Trantech Radiator Topco, LLC

  May 31,

  Transformer Cooling Products and

2019

Services

Vision Interests, Inc .

June 5,
2007

  Manufacturer / Installer of
Commercial Signage

Ziegler's NYPD, LLC

  October 1,

2008

Casual Restaurant Group

Subtotal Control Investments (67.2% of net assets at fair value)

92

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
  Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Affiliate Investments (6)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

AFG Capital Group, LLC

  November 7,

  Provider of Rent-to-Own Financing

2014

Solutions and Services

10.00% Secured Debt (Maturity —

May 25, 2022)

  $

838  $

838  $

  Preferred Member Units (186 units)

1,200 

2,038 

Fair
Value(18)

838 

5,180 

6,018 

American Trailer Rental

June 7, 2017  Provider of Short-term Trailer and

Group LLC

Container Rental

LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.34%, Secured
Debt (Maturity — June 7, 2022)(9)  

Member Units (Milton Meisler
Holdings LLC) (48,555 units)

27,087 

  26,905 

27,087 

4,855 

  31,760 

8,540 

35,627 

LIBOR Plus 11.00% (Floor 1.00%),

Current Coupon 12.71%,
(Maturity — April 8, 2021)(9)

  Preferred Stock (non-voting)(8)

  Member Units (800,000 units)

LIBOR Plus 12.00% (Floor 1.00%),
Current Coupon 14.10%, Secured
Debt (Maturity — June 30, 2022)
(9)

  Member Units (2,160,000 units)(8)

LIBOR Plus 9.25% (Floor 1.00%),
Current Coupon 10.94%, Secured
Debt (Maturity — June 30, 2020)
(9)

Preferred Member Units (6 units; 6%

cumulative)(8)(19)

4,800 

4,698 

131 

800 

5,629 

4,698 

131 

290 

5,119 

13,244 

  13,106 

2,256 

  15,362 

13,244 

6,270 

19,514 

19,004 

  18,981 

18,794 

4,701 

  23,682 

4,701 

23,495 

BBB Tank Services, LLC

April 8,
2016

  Maintenance, Repair and

Construction Services to the
Above-Ground Storage Tank
Market

Boccella Precast Products LLC

June 30,
2017

  Manufacturer of Precast Hollow

Core Concrete

Buca C, LLC

June 30,
2015

Casual Restaurant Group

CAI Software LLC

  October 10,

2014

  Provider of Specialized Enterprise
Resource Planning Software

Chandler Signs Holdings, LLC(10)  

January 4,
2016

Sign Manufacturer

Charlotte Russe, Inc(11)

May 28,
2013

  Fast-Fashion Retailer to Young

Women

11.00% Secured Debt (Maturity —

December 7, 2023)

  Member Units (66,968 units)(8)

9,160 

9,077 

751 

9,828 

9,160 

5,210 

14,370 

  Class A Units (1,500,000 units)(8)

1,500 

2,740 

  Common Stock (19,041 shares)

3,141 

— 

93

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Congruent Credit Opportunities

Funds(12)(13)

Investment
Date(26)

January 24,
2012

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Investment Partnership

LP Interests (Congruent Credit

Opportunities Fund II, LP) (Fully
diluted 19.8%)

LP Interests (Congruent Credit

Opportunities Fund III, LP) (Fully
diluted 17.4%)(8)

LP Interests (Copper Trail Energy

Fund I, LP) (Fully diluted 12.4%)
(8)

LP Interests (Dos Rios Partners, LP)

(Fully diluted 20.2%)

LP Interests (Dos Rios Partners —
A, LP) (Fully diluted 6.4%)

5,210 

855 

  13,601 

  18,811 

13,915 

14,770 

1,997 

2,362 

5,846 

1,856 

7,702 

7,033 

2,233 

9,266 

  Common Stock (6,250 shares)(8)

480 

400 

LP Interests (EIG Global Private Debt
Fund-A, L.P.) (Fully diluted 11.1%)
(8)

768 

720 

LP Interests (Freeport Financial SBIC

Fund LP) (Fully diluted 9.3%)

LP Interests (Freeport First Lien Loan
Fund III LP) (Fully diluted 6.0%)
(8)

5,974 

5,778 

9,956 

  15,930 

9,696 

15,474 

12% Secured Debt (Maturity —

June 28, 2024)

Common Stock (10,429 shares)

1,939 

1,939 

256 
2,195 

1,939 

256 
2,195 

LP Interests (HPEP 3, L.P.) (Fully

diluted 8.2%)

2,474 

2,474 

Copper Trail Fund Investments(12)

(13)

July 17,
2017

Investment Partnership

Dos Rios Partners(12)(13)

April 25,
2013

Investment Partnership

East Teak Fine Hardwoods, Inc .

April 13,
2006

Distributor of Hardwood Products

EIG Fund Investments(12)(13)

  November 6,

2015

Investment Partnership

Freeport Financial Funds(12)(13)

June 13,
2013

Investment Partnership

Fuse, LLC(11)

June 30,
2019

Cable Networks Operator

Harris Preston Fund
Investments(12)(13)

August 9,
2017

Investment Partnership

Hawk Ridge Systems, LLC(13)

  December 2,

  Value-Added Reseller of

2016

Engineering Design and
Manufacturing Solutions

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.71%, Secured
Debt (Maturity — December 2,
2021)(9)

11.00% Secured Debt (Maturity —

December 2, 2021)

Preferred Member Units (226 units)

(8)

Preferred Member Units (HRS
Services, ULC) (226 units)

94

600 

600 

600 

13,400 

  13,335 

13,400 

2,850 

150 

  16,935 

7,900 

420 

22,320 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Houston Plating and Coatings, LLC 

Investment
Date(26)

January 8,
2003

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Provider of Plating and Industrial

Coating Services

8.00% Unsecured Convertible Debt

(Maturity — May 1, 2022)

  Member Units (322,297 units)(8)

3,000 

3,000 

2,352 

5,352 

4,260 

10,330 

14,590 

Member Units (Fully diluted 20.0%;

24.4% profits interest)(8)

  17,000 

14,407 

Preferred Member Units (non-voting;

14% cumulative)(8)(19)

  Member Units (2,179,001 units)

81 

2,019 

2,100 

81 

2,050 

2,131 

12.00% PIK Secured Debt

(Maturity — June 30, 2021)(19)

6,474 

6,474 

6,474 

10.00% PIK Unsecured Debt

(Maturity — June 30, 2021)(19)

  Preferred Stock (912 shares)

Warrants (5,333 equivalent shares;

Expiration — April 18, 2021; Strike
price — $0.01 per share)

58 

58 

1,981 

1,919 

  10,432 

58 

— 

— 

6,532 

12.00% Current, Secured Debt

(Maturity — March 31, 2020)
Preferred Stock (1,740,000 shares)

(non-voting)

  Preferred Stock (1,500,000 shares)

11,356 

  11,356 

11,356 

1,740 

3,927 

  17,023 

4,350 

2,680 

18,386 

12.00% Secured Debt (Maturity —

January 8, 2018)(14)(15)

  Preferred Member Units (250 units)

30,369 

  29,865 

2,500 

  32,365 

— 

— 

— 

I-45 SLF LLC(12)(13)

  October 20,

2015

Investment Partnership

L.F. Manufacturing
Holdings, LLC(10)

  December 23,

  Manufacturer of Fiberglass

2013

Products

OnAsset Intelligence, Inc.

April 18,
2011

  Provider of Transportation

Monitoring / Tracking Products
and Services

PCI Holding Company, Inc.

  December 18,

  Manufacturer of Industrial Gas

2012

Generating Systems

Rocaceia, LLC (Quality Lease and

Rental Holdings, LLC)

January 8,
2013

  Provider of Rigsite

Accommodation Unit Rentals
and Related Services

Salado Stone Holdings, LLC(10)

June 27, 2016  Limestone and Sandstone

Dimension Cut Stone Mining
Quarries

Class A Preferred Units (Salado

Acquisition, LLC) (2,000,000 units) 

2,000 

570 

95

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

SI East, LLC

Investment
Date(26)

August 31,
2018

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Rigid Industrial Packaging

Manufacturing

9.50% Current, Secured Debt

(Maturity — August 31, 2023)
Preferred Member Units (157 units)

(8)

32,963 

  32,687 

32,963 

6,000 

  38,687 

8,200 

41,163 

Slick Innovations, Inc .

  September 13,

2018

Text Message Marketing Platform 

14.00% Current, Secured Debt

(Maturity — September 13, 2023)

6,360 

  Common Stock (70,000 shares)(8)
Warrants (18,084 equivalent units;
Expiration - September 13, 2028;
Strike price — $0.01 per unit)

6,197 

700 

181 

7,078 

UniTek Global Services, Inc.(11)

April 15,
2011

  Provider of Outsourced

Infrastructure Services

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.41%, Secured
Debt (Maturity — August 20, 2024)
(9)

Preferred Stock (755,401 shares; 20%

cumulative)(8)(19)

Preferred Stock (1,521,122 shares;

19% cumulative)(8)(19)

Preferred Stock (2,281,682 shares;

19% cumulative)(8)(19)

Preferred Stock (4,336,866 shares;

13.50% cumulative)(8)(19)

  Common Stock (945,507 shares)

Universal Wellhead Services

Holdings, LLC(10)

October 30,
2014

  Provider of Wellhead Equipment,

Designs, and Personnel to the
Oil & Gas Industry

Volusion, LLC

January 26,
2015

  Provider of Online Software-as-a-
Service eCommerce Solutions  

Subtotal Affiliate Investments (21.5% of net assets at fair value)

96

Preferred Member Units (UWS

Investments, LLC) (716,949 units;
14% cumulative)(8)(19)

Member Units (UWS
Investments, LLC)
(4,000,000 units)

11.50% Secured Debt (Maturity —

January 26, 2020)

8.00% Unsecured Convertible Debt
(Maturity — November 16, 2023)

Preferred Member Units

(4,876,670 units)

Warrants (1,831,355 equivalent units;

Expiration - January 26, 2025;
Strike price — $0.01 per unit)

6,197 

1,080 

290 

7,567 

2,962 

1,889 

2,282 

3,667 

2,684 

— 

13,484 

800 

— 

800 

2,963 

2,940 

809 

1,976 

3,667 

7,924 

— 

  17,316 

1,032 

4,000 

5,032 

20,234 

  20,162 

19,352 

409 

409 

291 

  14,000 

14,000 

2,576 

  37,147 
   $ 351,764  $

150 

33,793 
330,287 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Non-Control/Non-Affiliate Investments(7)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

AAC Holdings, Inc.(11)

June 30, 2017  Substance Abuse Treatment Service

Provider

LIBOR Plus 11.00% (Floor 1.00%),
Current Coupon 13.03%, Secured
Debt (Maturity — April 15, 2020)
(9)(14)

LIBOR Plus 12.75% (Floor 1.00%),
Current Coupon 16.50%, Secured
Debt (Maturity — June 30, 2023)
(9)(14)

Prime Plus 5.00% (Floor 1.50%),

Current Coupon 8.75%, Secured
Debt (Maturity — July 3, 2023)
(9)

LIBOR Plus 7.50% (Floor 1.50%),
Current Coupon 9.44%, Secured
Debt (Maturity — July 3, 2023)
(9)

LIBOR Plus 7.50% (Floor 1.50%),
Current Coupon 9.50%, Secured
Debt (Maturity — July 3, 2023)
(9)

LIBOR Plus 6.25% (Floor 0.75%),
Current Coupon 8.03%, Secured
Debt (Maturity — July 26, 2023)
(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 8.46%, Secured
Debt (Maturity — September 8,
2023)(9)

LIBOR Plus 4.75% (Floor 1.00%),
Current Coupon 6.59%, Secured
Debt (Maturity — October 22,
2022)(9)

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.44%, Secured
Debt (Maturity — July 29, 2026)
(9)

2,227 

2,068 

2,172 

14,396 

14,030 

16,098 

9,358 

11,530 

5,000 

4,930 

5,000 

6,158 

6,058 

6,158 

197 

197 

11,185 

197 

11,355 

19,843 

19,703 

19,843 

9,750 

9,630 

9,531 

14,396 

14,126 

14,036 

10,000 

9,902 

9,883 

Adams Publishing
Group, LLC(10)

  November 19,

2015

Local Newspaper Operator

ADS Tactical, Inc.(10)

March 7,
2017

  Value-Added Logistics and Supply

Chain Provider to the Defense
Industry

Aethon United BR LP(10)

September 8,
2017

Oil & Gas Exploration & Production 

Affordable Care Holding Corp.

  May 9, 2019  

(10)

Dental Service Organization

ALKU, LLC.(11)

October 18,
2019

Specialty National Staffing Operator  

97

 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Allen Media, LLC.(11)

  September 18,

  Operator of Cable Television

2018

Networks

Allen Media

Broadcasting LLC(10)

July 3, 2019   Operator of Television Broadcasting

Networks

American Nuts, LLC(10)

April 10,
2018

  Roaster, Mixer and Packager of

Bulk Nuts and Seeds

American Teleconferencing

  May 19, 2016   Provider of Audio Conferencing and

Services, Ltd.(11)

Video Collaboration Solutions

APTIM Corp.(11)

August 17,
2018

  Engineering, Construction &

Procurement

Arcus Hunting LLC(10)

January 6,
2015

  Manufacturer of Bowhunting and

Archery Products and Accessories 

ASC Ortho Management
Company, LLC(10)

August 31,
2018

Provider of Orthopedic Services

ATI Investment Sub, Inc.(11)

July 11, 2016   Manufacturer of Solar Tracking
Systems

98

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.48%, Secured
Debt (Maturity — August 30,
2023)(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.21%, Secured
Debt (Maturity — July 3, 2024)
(9)

LIBOR Plus 9.50% (Floor 1.00%),
Current Coupon 11.60%, Secured
Debt (Maturity — April 10, 2023)
(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.36%, Secured
Debt (Maturity — June 8, 2023)
(9)

16,270 

15,894 

15,863 

14,906 

14,565 

14,565 

12,243 

12,002 

12,233 

17,389 

16,421 

10,460 

7.75% Secured Debt (Maturity —

June 15, 2025)

12,452 

10,836 

7,471 

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.10%, Secured
Debt (Maturity — January 13,
2020)(9)

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 9.60%, Secured
Debt (Maturity — August 31,
2023)(9)

13.25% PIK Secured Debt

(Maturity — December 1, 2023)
(19)

13,857 

13,856 

13,856 

4,543 

4,465 

4,490 

1,854 

1,821 

6,286 

1,854 

6,344 

LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.01%, Secured
Debt (Maturity — June 22, 2021)
(9)

2,885 

2,859 

2,853 

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

ATX Networks Corp.(11)(13)(21)  

June 30, 2015  Provider of Radio Frequency

Management Equipment

Barfly Ventures, LLC(10)

August 31,
2015

Casual Restaurant Group

Berry Aviation, Inc.(10)

July 6, 2018   Charter Airline Services

BigName Commerce, LLC(10)

  May 11, 2017  Provider of Envelopes and

Complimentary Stationery
Products

Binswanger Enterprises, LLC(10)   March 10,

  Glass Repair and Installation Service

2017

Provider

Bluestem Brands, Inc.(11)

  December 19,

  Multi-Channel Retailer of General

2013

Merchandise

Bojangles', Inc.(11)

February 5,
2019

Quick Service Restaurant Group

99

LIBOR Plus 6.00% (Floor 1.00%)
Current Coupon 7.94% / 1.00%
PIK, Current Coupon Plus PIK
8.94% Secured Debt (Maturity —
June 11, 2021)(9)(19)

12.00% Secured Debt (Maturity —

August 31, 2020)

  Options (3 equivalent units)
Warrant (2 equivalent unit;

Expiration — August 31, 2025;
Strike price — $1.00 per unit)

10.50% Current / 1.5% PIK,
Secured Debt (Maturity —
January 6, 2024)(19)

Preferred Member Units (Berry

Acquisition, LLC) (122,416 units;
16% cumulative)(8)(19)

Preferred Member Units (Berry
Acquisition, LLC) (1,548,387
units; 8% cumulative)(8)(19)

LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.35%, Secured
Debt (Maturity — May 11, 2022)
(9)

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 10.41%, Secured
Debt (Maturity — March 9, 2022)
(9)

  Member Units (1,050,000 units)

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 9.31%, Secured
Debt (Maturity — November 6,
2020)(9)

LIBOR Plus 4.75%, Current

Coupon 6.50%, Secured Debt
(Maturity — January 28, 2026)

LIBOR Plus 8.50%, Current

Coupon 10.25%, Secured Debt
(Maturity — January 28, 2027)

13,593 

13,414 

12,743 

10,185 

10,073 

607 

473 

11,153 

7,736 

— 

— 

7,736 

4,554 

4,518 

4,554 

125 

125 

1,671 

6,314 

776 

5,455 

2,233 

2,218 

2,233 

13,731 

13,443 

1,050 

14,493 

13,731 

950 

14,681 

10,622 

10,571 

7,973 

7,782 

7,642 

7,827 

5,000 

4,907 

12,549 

5,012 

12,839 

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Brainworks Software, LLC(10)

Investment
Date(26)

August 12,
2014

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Advertising Sales and Newspaper

Circulation Software

4.00% Secured Debt (Maturity —

July 22, 2019)(9)(17)

6,733 

6,733 

5,955 

Brightwood Capital Fund
Investments(12)(13)

July 21, 2014  

Investment Partnership

Cadence Aerospace LLC(10)

  November 14,

2017

Aerostructure Manufacturing

California Pizza Kitchen, Inc.(11)  

August 29,
2016

Casual Restaurant Group

Central Security Group, Inc.(11)

  December 4,

  Security Alarm Monitoring Service

2017

Provider

Cenveo Corporation(11)

September 4,
2015

  Provider of Digital Marketing

Agency Services

LP Interests (Brightwood Capital

Fund III, LP) (Fully diluted 1.6%)
(8)

LP Interests (Brightwood Capital

Fund IV, LP) (Fully diluted 0.6%)
(8)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.40%, Secured
Debt (Maturity — November 14,
2023)(9)

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.91%, Secured
Debt (Maturity — August 23,
2022)(9)

LIBOR Plus 5.63% (Floor 1.00%),
Current Coupon 7.38%, Secured
Debt (Maturity — October 6,
2021)(9)

Libor Plus 9.50% (Floor 1.00%),

Current Coupon 11.45%, Secured
Debt (Maturity — June 7, 2023)
(9)

  Common Stock (177,130 shares)

11,160 

9,005 

4,500 

15,660 

4,504 

13,509 

25,287 

25,089 

25,287 

14,599 

14,501 

12,739 

13,776 

13,734 

11,985 

5,674 

5,498 
5,309 

10,807 

5,674 
2,923 

8,597 

Chisholm Energy

Holdings, LLC(10)

  May 15, 2019  

Oil & Gas Exploration & Production 

Clarius BIGS, LLC(10)

  September 23,

2014

Prints & Advertising Film Financing 

Clickbooth.com, LLC(10)

  December 5,

  Provider of Digital Advertising

2017

Performance Marketing Solutions  

LIBOR Plus 6.25% (Floor 1.50%),
Current Coupon 8.16%, Secured
Debt (Maturity — May 15, 2026)
(9)

3,571 

3,488 

3,488 

15% PIK Secured Debt (Maturity —

January 5, 2015)(14)(17)

2,846 

2,846 

40 

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 10.59%, Secured
Debt (Maturity — December 5,
2022)(9)

2,663 

2,625 

2,663 

100

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Construction Supply

Investments, LLC(10)

Investment
Date(26)

  December 29,

2016

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Distribution Platform of Specialty
Construction Materials to
Professional Concrete and
Masonry Contractors

  Member Units (46,152 units)

4,866 

7,667 

Corel Corporation(11)(13)(21)

July 24, 2019   Publisher of Desktop and Cloud-

based Software

CTVSH, PLLC(10)

August 3,
2017

  Emergency Care and Specialty
Service Animal Hospital

Darr Equipment LP(10)

April 15,
2014

Heavy Equipment Dealer

Digital River, Inc.(11)

February 24,
2015

  Provider of Outsourced e-Commerce

Solutions and Services

DTE Enterprises, LLC(10)

April 13,
2018

Industrial Powertrain Repair and

Services

Dynamic Communities, LLC(10)

July 17, 2018   Developer of Business Events and

Online Community Groups

Echo US Holdings, LLC.(10)

  November 12,

  Developer and Manufacturer of

2019

PVC and Polypropylene Materials  

101

LIBOR Plus 5.00% (Floor 1.00%),
Current Coupon 6.91%, Secured
Debt (Maturity — July 2, 2026)
(9)

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 9.91%, Secured
Debt (Maturity — August 3,
2022)(9)

11.5% Current / 1% PIK Secured
Debt (Maturity - June 22, 2023)
(19)

Warrants (915,734 equivalent units;

Expiration — December 23,
2023; Strike price — $1.50 per
unit)

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.90%, Secured
Debt (Maturity — February 12,
2021)(9)

LIBOR Plus 7.50% (Floor 1.50%),
Current Coupon 9.24%, Secured
Debt (Maturity — April 13, 2023)
(9)

Class AA Preferred Member Units
(non-voting; 10% cumulative)(8)
(19)

Class A Preferred Member Units

(776,316 units)

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 9.75%, Secured
Debt (Maturity — July 17, 2023)
(9)

LIBOR Plus 6.25% (Floor 1.63%),
Current Coupon 7.96%, Secured
Debt (Maturity — October 25,
2024)(9)

15,000 

14,293 

14,531 

10,099 

10,039 

10,099 

5,899 

5,899 

5,899 

474 

6,373 

300 

6,199 

15,876 

15,771 

15,837 

10,992 

10,827 

10,982 

860 

776 

12,463 

860 

1,490 

13,332 

5,460 

5,375 

5,458 

22,414 

22,292 

22,292 

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

EnCap Energy Fund
Investments(12)(13)

Investment
Date(26)

  December 28,

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

2010

Investment Partnership

LP Interests (EnCap Energy Capital
Fund VIII, L.P.) (Fully diluted
0.1%)(8)

LP Interests (EnCap Energy Capital
Fund VIII Co- Investors, L.P.)
(Fully diluted 0.4%)

LP Interests (EnCap Energy Capital

Fund IX, L.P.) (Fully diluted
0.1%)(8)

LP Interests (EnCap Energy Capital

Fund X, L.P.) (Fully diluted
0.1%)(8)

LP Interests (EnCap Flatrock

Midstream Fund II, L.P.) (Fully
diluted 0.8%)(8)

LP Interests (EnCap Flatrock

Midstream Fund III, L.P.) (Fully
diluted 0.2%)(8)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 8.50%, Secured
Debt (Maturity — October 29,
2025)(9)

LIBOR Plus 6.00%, Current

Coupon 8.04%, Secured Debt
(Maturity — June 13, 2024)

LIBOR Plus 8.25% (Floor 1.00%),
Current Coupon 10.45%, Secured
Debt (Maturity — April 28, 2022)
(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.40%, Secured
Debt (Maturity — August 9,
2022)(9)

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 7.77%, Secured
Debt (Maturity — April 3, 2020)
(9)

3,617 

1,354 

2,097 

703 

4,360 

2,780 

8,427 

8,822 

7,337 

5,669 

6,674 

32,512 

6,677 

26,005 

9,000 

8,921 

6,795 

10,275 

10,116 

10,050 

6,999 

6,928 

1,965 

5,000 

4,944 

5,000 

11,297 

11,247 

10,619 

Encino Acquisition Partners

  November 16,

Holdings, Inc.(11)

2018

Oil & Gas Exploration & Production 

EPIC Y-Grade Services, LP(11)

June 22, 2018  NGL Transportation & Storage

Evergreen Skills Lux S.á r.l.
(d/b/a Skillsoft)(11)(13)

  May 5, 2014   Technology-based Performance

Support Solutions

Felix Investments Holdings II(10)  

August 9,
2017

Oil & Gas Exploration & Production 

Flavors Holdings Inc.(11)

October 15,
2014

  Global Provider of Flavoring and

Sweetening Products

Fortna, Inc.(10)

July 23, 2019   Process, Physcial Distribution and

Logistics Consulting Services

LIBOR Plus 5.00%, Current

Coupon 6.75%, Secured Debt
(Maturity — April 8, 2025)

7,751 

7,577 

7,577 

102

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

GeoStabilization International

  December 31,

  Geohazard Engineering Services &

(GSI)(11)

2018

Maintenance

LIBOR Plus 5.25%, Current

Coupon 7.05%, Secured Debt
(Maturity — December 19, 2025)  

16,376 

16,230 

16,335 

GoWireless Holdings, Inc.(11)

  December 31,

  Provider of Wireless

2017

Telecommunications Carrier
Services

Grupo Hima San Pablo, Inc.(11)

March 7,
2013

Tertiary Care Hospitals

GS HVAM Intermediate, LLC(10)  October 18,

2019

Specialized Food Distributor

HDC/HW Intermediate

  December 21,

  Managed Services and Hosting

Holdings(10)

2018

Provider

Hoover Group, Inc.(10)(13)

  October 21,

  Provider of Storage Tanks and

2016

Related Products to the Energy
and Petrochemical Markets

Hunter Defense Technologies, Inc.

  March 29,

  Provider of Military and Commercial

(10)

2018

Shelters and Systems

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.25%, Secured
Debt (Maturity — December 22,
2024)(9)

LIBOR Plus 7.00% (Floor 1.50%),
Current Coupon 8.91%, Secured
Debt (Maturity — April 30, 2019)
(9)(17)

13.75% Secured Debt (Maturity —

October 15, 2018)(17)

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 7.51%, Secured
Debt (Maturity — October 2,
2024)(9)

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 9.53%, Secured
Debt (Maturity — December 21,
2023)(9)

LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.26%, Secured
Debt (Maturity — January 28,
2021)(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.02%, Secured
Debt (Maturity — March 29,
2023)(9)

18,120 

17,964 

17,471 

4,504 

4,504 

2,055 

2,040 

6,544 

3,343 

167 

3,510 

11,364 

11,233 

11,233 

3,498 

3,440 

3,493 

20,764 

20,119 

19,206 

29,097 

28,659 

29,097 

HW Temps LLC

July 2, 2015   Temporary Staffing Solutions

8.00% Secured Debt (Maturity —

March 29, 2023)

10,181 

10,025 

8,913 

103

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Hydrofarm Holdings LLC(10)

  May 18, 2017   Wholesaler of Horticultural

Products

Hyperion Materials &

  September 12,

  Manufacturer of Cutting and

Technologies, Inc.(11)(13)

2019

Machine Tools & Speciality
Polishing Compounds

iEnergizer Limited(10)(13)(21)

April 17,
2019

  Provider of Business Outsourcing

Solutions

Implus Footcare, LLC(10)

June 1, 2017   Provider of Footwear and Related
Accessories

Independent Pet Partners

  November 20,

  Omnichannel Retailer of Specialty

Intermediate Holdings, LLC(10)

2018

Pet Products

Industrial Services

Acquisition, LLC(10)

June 17, 2016  

Industrial Cleaning Services

LIBOR Plus 10.00%, Current

Coupon 3.54% / 8.26% PIK,
Current Coupon Plus PIK 11.80%
Secured Debt (Maturity —
May 12, 2022)(19)

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.25%, Secured
Debt (Maturity — August 28,
2026)(9)

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.79%, Secured
Debt (Maturity — April 17, 2024)
(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.27%, Secured
Debt (Maturity — April 30, 2024)
(9)

LIBOR Plus 9.00% (Floor 1.00%),
Current Coupon 11.28%, Secured
Debt (Maturity — November 19,
2023)(9)

  Member Units (1,558,333 units)

6% Current / 7% PIK Unsecured

Debt (Maturity — December 17,
2022)(19)

Preferred Member Units (Industrial
Services Investments, LLC) (144
units; 10% cumulative)(8)(19)
Preferred Member Units (Industrial
Services Investments, LLC) (80
units; 20% cumulative)(8)(19)
Member Units (Industrial Services
Investments, LLC) (900 units)

7,660 

7,547 

6,414 

22,500 

22,066 

22,275 

12,963 

12,848 

12,962 

18,577 

18,178 

18,217 

18,799 

18,487 

1,558 

20,045 

18,799 

1,260 

20,059 

5,242 

5,174 

5,242 

103 

103 

60 

900 

6,237 

60 

510 

5,915 

Inn of the Mountain Gods Resort

and Casino(11)

October 30,
2013

Hotel & Casino Owner & Operator  

9.25% Secured Debt (Maturity —

November 30, 2020)

7,762 

7,584 

7,684 

104

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Interface Security Systems,

L.L.C(10)

Investment
Date(26)

August 7,
2019

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Commercial Security & Alarm

Services

Intermedia Holdings, Inc.(11)

August 3,
2018

  Unified Communications as a

Service

Invincible Boat Company, LLC.

(10)

August 28,
2019

Manufacturer of Sport Fishing Boats  

Isagenix International, LLC(11)

June 21, 2018  Direct Marketer of Health &

Wellness Products

JAB Wireless, Inc.(10)

  May 2, 2018   Fixed Wireless Broadband Provider  

Jackmont Hospitality, Inc.(10)

  May 26, 2015  Franchisee of Casual Dining

Restaurants

Joerns Healthcare, LLC(11)

  April 3, 2013   Manufacturer and Distributor of

Health Care Equipment &
Supplies

LIBOR Plus 7.00% (Floor 1.75%),
Current Coupon 8.77%, Secured
Debt (Maturity — August 7,
2023)(9)

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.75%, Secured
Debt (Maturity — July 19, 2025)
(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.53%, Secured
Debt (Maturity — August 28,
2025)(9)

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 7.77%, Secured
Debt (Maturity — June 14, 2025)
(9)

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 9.74%, Secured
Debt (Maturity — May 2, 2023)
(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 8.45%, Secured
Debt (Maturity — May 26, 2021)
(9)

7,500 

7,363 

7,363 

20,130 

20,033 

20,180 

9,872 

9,773 

9,773 

5,943 

5,893 

4,273 

14,775 

14,669 

14,775 

4,059 

4,055 

4,059 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.91% Secured
Debt (Maturity — August 21,
2024)(9)

  Common Stock (472,579 shares)

4,016 

3,942 

4,429 

8,371 

3,942 

4,429 

8,371 

Kemp Technologies Inc.(10)

June 27, 2019  Provider of Application Delivery
Controllers

Kore Wireless Group Inc.(11)

  December 31,

2018

Mission Critical Software Platform  

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.00%, Secured
Debt (Maturity — March 29,
2024)(9)

7,462 

7,326 

7,463 

LIBOR Plus 5.50%, Current

Coupon 7.52%, Secured Debt
(Maturity — December 20, 2024)  

19,285 

19,189 

19,164 

105

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Larchmont Resources, LLC(11)

Investment
Date(26)

August 13,
2013

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Oil & Gas Exploration & Production  

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 8.89%, Secured
Debt (Maturity — August 7,
2020)(9)

Member Units (Larchmont

Intermediate Holdco, LLC) (2,828
units)

LIBOR Plus 9.63% (Floor 2.00%),
Current Coupon 5.38% / 6.26%
PIK, Current Coupon Plus PIK
11.64%, Secured Debt
(Maturity — November 19, 2021)
(9)(19)

2,145 

2,145 

1,990 

353 

2,498 

707 

2,697 

11,312 

11,166 

10,638 

LIBOR Plus 5.00%, Current

Coupon 6.74%, Secured Debt
(Maturity — May 9, 2026)

14,925 

14,713 

14,738 

  LP Interests (Fully diluted 2.3%)(8)  

1,746 

3,682 

Laredo Energy VI, LP(10)

January 15,
2019

Oil & Gas Exploration & Production  

Lightbox Holdings, L.P.(11)

May 23,
2019

  Provider of Commercial Real Estate

Software

LKCM Headwater

Investments I, L.P.(12)(13)

January 25,
2013

Investment Partnership

LL Management, Inc.(10)

  May 2, 2019   Medical Transportation Service
Provider

Logix Acquisition

Company, LLC(10)

June 24,
2016

Competitive Local Exchange Carrier  

Looking Glass

Investments, LLC(12)(13)

July 1, 2015  

Specialty Consumer Finance

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.56%, Secured
Debt (Maturity — September 25,
2023)(9)

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 7.50%, Secured
Debt (Maturity — December 22,
2024)(9)

13,754 

13,625 

13,751 

18,381 

18,199 

18,197 

LSF9 Atlantis Holdings, LLC(11)  

May 17,
2017

  Provider of Wireless

Telecommunications Carrier
Services

Lulu's Fashion Lounge, LLC(10)

August 31,
2017

Fast Fashion E-Commerce Retailer

  Member Units (2.5 units)

Member Units (LGI Predictive

Analytics LLC) (190,712 units)

125 

49 

174 

25 

16 

41 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.74%, Secured
Debt (Maturity — May 1, 2023)
(9)

LIBOR Plus 9.00% (Floor 1.00%),
Current Coupon 10.75%, Secured
Debt (Maturity — August 28,
2022)(9)

9,458 

9,458 

8,761 

11,335 

11,070 

11,109 

106

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Lynx FBO Operating LLC(10)

  September 30,

  Fixed Based Operator in the General

2019

Aviation Industry

Mac Lean-Fogg Company(10)

April 22,
2019

  Manufacturer and Supplier for Auto

and Power Markets

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 7.86%, Secured
Debt (Maturity — September 30,
2024)(9)

  Member Units (3,704 units)

13,750 

13,451 

500 

13,951 

13,451 

500 

13,951 

LIBOR Plus 5.00%, Current

Coupon 6.75%, Secured Debt
(Maturity — December 22, 2025)  

Preferred Stock (1,516 shares;
4.50% Cash / 9.25% PIK
cumulative)(8)(19)

16,648 

16,528 

16,643 

1,775 

18,303 

1,775 

18,418 

MHVC Acquisition Corp.(11)

  May 8, 2017   Provider of differentiated

information solutions, systems
engineering, and analytics

Mills Fleet Farm Group, LLC(10)  

October 24,
2018

  Omnichannel Retailer of Work,

Farm and Lifestyle Merchandise  

NBG Acquisition Inc(11)

April 28,
2017

  Wholesaler of Home Décor

Products

NinjaTrader, LLC(10)

  December 18,

  Operator of Futures Trading

2019

Platform

NNE Partners, LLC(10)

March 2,
2017

Oil & Gas Exploration & Production 

North American Lifting
Holdings, Inc.(11)

February 26,
2015

Crane Service Provider

LIBOR Plus 5.25% (Floor 1.00%),
Current Coupon 7.01%, Secured
Debt (Maturity — April 29, 2024)
(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.29% / 0.75%
PIK, Current Coupon Plus PIK
9.04%, Secured Debt (Maturity —
October 24, 2024)(9)(19)

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.52%, Secured
Debt (Maturity — April 26, 2024)
(9)

LIBOR Plus 6.00% (Floor 1.50%),
Current Coupon 7.90%, Secured
Debt (Maturity — December 18,
2024)(9)

19,950 

19,855 

19,950 

14,879 

14,556 

14,187 

4,181 

4,134 

3,247 

9,675 

9,490 

9,490 

LIBOR Plus 8.00%, Current

Coupon 9.91%, Secured Debt
(Maturity — March 2, 2022)

23,417 

23,268 

23,147 

LIBOR Plus 4.50% (Floor 1.00%),
Current Coupon 6.52%, Secured
Debt (Maturity — November 27,
2020)(9)

7,584 

7,300 

6,417 

107

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Novetta Solutions, LLC(11)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

June 21,
2017

  Provider of Advanced Analytics

Solutions for Defense Agencies

NTM Acquisition Corp.(11)

July 12,
2016

  Provider of B2B Travel Information

Content

Ospemifene Royalty Sub LLC

July 8, 2013   Estrogen-Deficiency Drug

(QuatRx)(10)

Manufacturer and Distributor

PaySimple, Inc.(10)

  September 9,

2019

  Leading technology services
commerce platform

Permian Holdco 2, Inc.(11)

  February 12,

2013

Storage Tank Manufacturer

Point.360(10)

July 8, 2015   Fully Integrated Provider of Digital
Media Services

PricewaterhouseCoopers Public

Sector LLP(11)

May 24,
2018

  Provider of Consulting Services to

Governments

PT Network, LLC(10)

  November 1,

2013

  Provider of Outpatient Physical
Therapy and Sports Medicine
Services

LIBOR Plus 5.00% (Floor 1.00%),
Current Coupon 6.76%, Secured
Debt (Maturity — October 17,
2022)(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.00%, Secured
Debt (Maturity — June 7, 2022)
(9)

21,060 

20,673 

20,749 

4,879 

4,874 

4,879 

11.5% Secured Debt (Maturity —

November 15, 2026)(14)

4,868 

4,868 

463 

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.28%, Secured
Debt (Maturity — August 23,
2025)(9)

15,845 

15,586 

15,766 

14.00% PIK Unsecured Debt

(Maturity — October 15, 2021)
(19)

18.00% PIK Unsecured Debt

(Maturity — June 30, 2022)(19)

Preferred Stock (Permian

Holdco 1, Inc.) (154,558 units)

456 

319 

Warrants (65,463 equivalent shares;
Expiration — July 7, 2020; Strike
price — $0.75 per share)

  Common Stock (163,658 shares)

456 

319 

799 

1,574 

69 

273 

342 

341 

319 

100 

760 

— 

— 

— 

LIBOR Plus 8.00%, Current

Coupon 9.75%, Secured Debt
(Maturity — May 1, 2026)

9,000 

8,965 

8,865 

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.44% / 2.00%
PIK, Current Coupon Plus PIK
9.44%, Secured Debt (Maturity —
November 30, 2023)(9)(19)

8,491 

8,491 

8,414 

108

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Research Now Group, Inc. and

  December 31,

Survey Sampling
International, LLC(11)

2017

Provider of Outsourced Online

Surveying

RM Bidder, LLC(10)

  November 12,

2015

  Scripted and Unscripted TV and
Digital Programming Provider

SAFETY Investment
Holdings, LLC

April 29,
2016

  Provider of Intelligent Driver

Record Monitoring Software and
Services

Salient Partners L.P.(11)

June 25, 2015   Provider of Asset Management
Services

SMART Modular

Technologies, Inc.(10)(13)

August 18,
2017

  Provider of Specialty Memory

Solutions

Staples Canada ULC(10)(13)(21)

  September 14,

2017

Office Supplies Retailer

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.41%, Secured
Debt (Maturity — December 20,
2024)(9)

Warrants (327,532 equivalent units;
Expiration — October 20, 2025;
Strike price — $14.28 per unit)

  Member Units (2,779 units)

18,115 

17,590 

18,140 

425 

46 

471 

— 

18 

18 

  Member Units (2,000,000 units)

2,000 

2,380 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.69%, Secured
Debt (Maturity — June 9, 2021)
(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.16%, Secured
Debt (Maturity — August 9,
2022)(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 8.98%, Secured
Debt (Maturity — September 12,
2024)(9)(22)

6,675 

6,657 

6,675 

18,484 

18,332 

18,669 

14,546 

14,348 

13,530 

TE Holdings, LLC(11)

  December 5,

2013

Oil & Gas Exploration & Production 

TEAM Public Choices, LLC(10)

October 28,
2019

  Home-Based Care Employment

Service Provider

  Member Units (97,048 units)

970 

— 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.75%, Secured
Debt (Maturity — September 20,
2024)(9)

16,844 

16,680 

16,680 

Tectonic Financial, Inc .

  May 15, 2017   Financial Services Organization

  Common Stock (400,000 shares)(8)  

2,000 

2,620 

TGP Holdings III LLC(11)

  September 30,

2017

Outdoor Cooking & Accessories

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 10.25%, Secured
Debt (Maturity — September 25,
2025)(9)

5,500 

5,440 

5,143 

109

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

The Pasha Group(11)

Investment
Date(26)

February 2,
2018

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Diversified Logistics and

Transportation Provided

TMC Merger Sub Corp.(11)

  December 22,

  Refractory & Maintenance Services

2016

Provider

TOMS Shoes, LLC(11)

  November 13,

2014

  Global Designer, Distributor, and
Retailer of Casual Footwear

USA DeBusk LLC(10)

October 22,
2019

  Provider of Industrial Cleaning

Services

U.S. TelePacific Corp.(11)

  September 14,

  Provider of Communications and

2016

Managed Services

Vida Capital, Inc(11)

October 10,
2019

Alternative Asset Manager

VIP Cinema Holdings, Inc.(11)

March 9,
2017

  Supplier of Luxury Seating to the

Cinema Industry

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 9.31%, Secured
Debt (Maturity — January 26,
2023)(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 8.53%, Secured
Debt (Maturity — October 31,
2022)(9)(24)

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.46%, Secured
Debt (Maturity — September 30,
2025)(9)

LIBOR Plus 5.00% (Floor 1.00%),
Current Coupon 6.96%, Secured
Debt (Maturity — December 31,
2025)(9)

  Member Units (16,321 units)

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 7.54%, Secured
Debt (Maturity — October 22,
2024)(9)

LIBOR Plus 5.00% (Floor 1.00%),
Current Coupon 7.02%, Secured
Debt (Maturity — May 2, 2023)
(9)

8,984 

8,793 

9,074 

15,527 

15,394 

15,392 

571 

571 

571 

1,637 

1,637 

245 

2,453 

1,637 

245 

2,453 

30,000 

29,423 

29,423 

17,088 

16,887 

16,447 

LIBOR Plus 6.00%, Current

Coupon 7.93%, Secured Debt
(Maturity — October 1, 2026)

18,500 

18,232 

18,315 

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 9.91%, Secured
Debt (Maturity — March 1, 2023)
(9)(14)

10,063 

10,030 

5,301 

110

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

Portfolio Company(1)(20)

Vistar Media, Inc.(10)

Investment
Date(26)

February 17,
2017

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Operator of Digital Out-of-Home

Advertising Platform

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.00%, Secured
Debt (Maturity — April 3, 2023)
(9)

  Preferred Stock (70,207 shares)

Warrants (69,675 equivalent shares;

Expiration — April 3, 2029;
Strike price — $10.92 per share)

LIBOR Plus 9.65% (Floor 1.00%),
Current Coupon 11.57% / 1.00%
PIK, Current Coupon Plus PIK
12.57%, Secured Debt
(Maturity — September 29, 2022)
(9)(19)(23)

LIBOR Plus 8.91% (Floor 1.00%),
Current Coupon 10.67% / 1.00%
PIK, Current Coupon Plus PIK
11.67%, Secured Debt
(Maturity — September 29, 2022)
(9)(19)(23)

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 7.60% Secured
Debt (Maturity — August 9,
2024)(9)

  Preferred Stock (186,777 shares)
Warrants (952,500 equivalent

shares; Expiration — June 15,
2022; Strike price — $0.001 per
share)

4,963 

4,784 

767 

— 

5,551 

4,939 

1,610 

1,630 

8,179 

7,136 

7,022 

7,129 

6,201 

6,132 

13,154 

6,200 

13,329 

14,531 

14,412 

14,404 

154 

260 

1,071 

1,225 

   $ 1,297,587  $
   $ 2,427,718  $

1,190 

1,450 
1,239,316 
2,602,324 

Wireless Vision

Holdings, LLC(10)

  September 29,

  Provider of Wireless

2017

Telecommunications Carrier
Services

YS Garments, LLC(11)

August 22,
2018

  Designer and Provider of Branded

Activewear

Zilliant Incorporated

June 15, 2012   Price Optimization and Margin

Management Solutions

Subtotal Non-Control/Non-Affiliate Investments (80.7% of net assets at fair value)
Total Portfolio Investments, December 31, 2019

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the
Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the
Funds. 

Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

See Note C and Schedule 12-14 for a summary of geographic location of portfolio companies.

Principal is net of repayments. Cost is net of repayments and accumulated unearned income.  

Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act"), as investments in which more than 25% of the voting securities are owned or where
the ability to nominate greater than 50% of the board representation is maintained. 

Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as
Control investments. 

Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

Income producing through dividends or distributions.

111

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2019
(dollars in thousands)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

(21)

(22)

(23)

(24)

(25)

(26)

(27)

Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that
may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually,
quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the
weighted average annual stated interest rate in effect at December 31, 2019. As noted in this schedule, 64% of the loans (based on the par amount) contain LIBOR floors which range
between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.06%. 

Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

Other Portfolio investment. See Note B for a description of Other Portfolio investments.

Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any
additional non-qualifying assets. 

Non-accrual and non-income producing investment.  

Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is
complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status. 

External Investment Manager. Investment is not encumbered as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

PIK interest income and cumulative dividend income represent income not paid currently in cash.

All portfolio company headquarters are based in the United States, unless otherwise noted.  

Portfolio company headquarters are located outside of the United States.

In connection with the Company's debt investment in Staples Canada ULC and in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the
Company's investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $17.6 million Canadian Dollars and receive $13.4 million U.S. Dollars
with a settlement date of September 14, 2020. The unrealized depreciation on the forward foreign currency contract is $0.2 million as of December 31, 2019. 

The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive
priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than
the contractual stated interest rate of LIBOR plus 8.50% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. 

The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive
priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than
the contractual stated interest rate of LIBOR plus 7.14% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such lower rate. 

All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities."  

Investment date represents the date of initial investment in the portfolio company. 

Investment has an unfunded commitment as of December 31, 2019 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments.

112

 
 
 
 
 
 
 
 
 
Table of Contents

MAIN STREET CAPITAL CORPORATION 

Consolidated Schedule of Investments 

December 31, 2018
(dollars in thousands) 

Portfolio Company(1)(20)

Control Investments(5)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Access Media Holdings, LLC(10)

July 22, 2015   Private Cable Operator

10% PIK Secured Debt (Maturity —

July 22, 2020)(14)(19)

  $

23,828  $ 23,828  $

8,558 

ASC Interests, LLC

August 1,
2013

  Recreational and Educational

Shooting Facility

ATS Workholding, LLC(10)

  March 10,

  Manufacturer of Machine Cutting

2014

Tools and Accessories

Bond-Coat, Inc.

  December 28,

  Casing and Tubing Coating

2012

Services

Brewer Crane Holdings, LLC

January 9,
2018

  Provider of Crane Rental and

Operating Services

Café Brazil, LLC

April 20,
2004

Casual Restaurant Group

California Splendor Holdings LLC   March 30,

2018

Processor of Frozen Fruits

Preferred Member Units (9,481,500

units)(27)

  Member Units (45 units)

11% Secured Debt (Maturity —

July 31, 2020)

  Member Units (1,500 units)

5% Secured Debt (Maturity —

November 16, 2021)

Preferred Member Units (3,725,862

units)

9,375 

1 

  33,204 

1,650 

1,622 

1,500 

3,122 

4,877 

4,507 

3,726 

8,233 

(284)

— 

8,274 

1,622 

1,370 

2,992 

4,390 

3,726 

8,116 

12% Secured Debt (Maturity —

December 28, 2020)

  Common Stock (57,508 shares)

11,596 

  11,367 

6,350 

  17,717 

11,596 

9,370 

20,966 

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.35%, Secured
Debt (Maturity — January 9, 2023)
(9)

Preferred Member Units (2,950 units)

(8)

9,548 

9,467 

9,467 

4,280 
  13,747 

4,280 
13,747 

  Member Units (1,233 units)(8)

1,742 

4,780 

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.50%, Secured
Debt (Maturity — March 30, 2023)
(9)

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.50%, Secured
Debt (Maturity — March 30, 2023)
(9)

Preferred Member Units (6,157 units)

(8)

11,091 

  10,928 

10,928 

28,000 

  27,755 

27,755 

  10,775 

  49,458 

9,745 

48,428 

113

 
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

CBT Nuggets, LLC

June 1, 2006   Produces and Sells IT Training

Certification Videos

  Member Units (416 units)(8)

1,300 

61,610 

Chamberlin Holding LLC

February 26,
2018

  Roofing and Waterproofing
Specialty Contractor

Charps, LLC

February 3,
2017

  Pipeline Maintenance and

Construction

Clad-Rex Steel, LLC

  December 20,

  Specialty Manufacturer of Vinyl-

2016

Clad Metal

CMS Minerals Investments

January 30,
2015

  Oil & Gas Exploration &

Production

Copper Trail Fund Investments(12)

July 17, 2017  

(13)

Investment Partnership

Datacom, LLC

  May 30, 2014   Technology and

Telecommunications Provider

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.75%, Secured
Debt (Maturity — February 26,
2023)(9)

  Member Units (4,347 units)(8)

Member Units (Chamberlin Langfield
Real Estate, LLC) (732,160 units)

20,203 

  20,028 

  11,440 

732 

  32,200 

20,028 

18,940 

732 

39,700 

12% Secured Debt (Maturity —

February 3, 2022)

Preferred Member Units (1,600 units)

(8)

11,900 

  11,805 

11,888 

400 

  12,205 

2,270 

14,158 

LIBOR Plus 9.00% (Floor 1.00%),
Current Coupon 11.35%, Secured
Debt (Maturity — December 20,
2021)(9)

  Member Units (717 units)(8)

10% Secured Debt (Clad-Rex Steel
RE Investor, LLC) (Maturity —
December 20, 2036)

Member Units (Clad-Rex Steel RE

Investor, LLC) (800 units)

12,080 

  12,001 

7,280 

12,080 

10,610 

1,161 

1,150 

1,161 

210 

  20,641 

350 

24,201 

Member Units (CMS

Minerals II, LLC) (100 units)(8)

2,707 

2,580 

LP Interests (CTMH, LP) (Fully

diluted 38.8%)

LP Interests (Copper Trail Energy

Fund I, LP) (Fully diluted 30.1%)
(8)

8% Secured Debt (Maturity —

May 30, 2019)(14)

10.50% PIK Secured Debt

(Maturity — May 30, 2019)(14)
(19)

  Class A Preferred Member Units
Class B Preferred Member Units

(6,453 units)

872 

872 

3,495 

4,367 

4,170 

5,042 

1,800 

1,800 

1,690 

12,511 

  12,479 

9,786 

1,294 

6,030 

— 

— 

  21,603 

11,476 

114

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Digital Products Holdings LLC

  April 1, 2018   Designer and Distributor of

Consumer Electronics

Direct Marketing Solutions, Inc .

February 13,
2018

  Provider of Omni-Channel Direct

Marketing Services

Gamber-Johnson Holdings, LLC  

June 24, 2016  Manufacturer of Ruggedized

Computer Mounting Systems

Garreco, LLC

July 15, 2013   Manufacturer and Supplier of

Dental Products

GRT Rubber Technologies LLC

  December 19,

  Manufacturer of Engineered

2014

Rubber Products

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.38%, Secured
Debt (Maturity — April 1, 2023)(9)  

Preferred Member Units (3,451

shares)(8)

25,740 

  25,511 

25,511 

8,466 

  33,977 

8,466 

33,977 

LIBOR Plus 11.00% (Floor 1.00%),
Current Coupon 13.38%, Secured
Debt (Maturity — February 13,
2023)(9)

  Preferred Stock (8,400 shares)

LIBOR Plus 7.50% (Floor 2.00%),
Current Coupon 9.85%, Secured
Debt (Maturity — June 24, 2021)
(9)

  Member Units (8,619 units)(8)

LIBOR Plus 8.00% (Floor 1.00%,
Ceiling 1.50%), Current Coupon
9.50%, Secured Debt (Maturity —
March 31, 2020)(9)

  Member Units (1,200 units)

LIBOR Plus 7.00%, Current Coupon
9.35%, Secured Debt (Maturity —
December 31, 2023)(9)

  Member Units (5,879 units)(8)

18,017 

  17,848 

8,400 

  26,248 

17,848 

14,900 

32,748 

21,486 

  21,356 

  14,844 

  36,200 

21,486 

45,460 

66,946 

5,121 

5,099 

1,200 

6,299 

5,099 

2,590 

7,689 

9,740 

9,716 

  13,065 

  22,781 

9,740 

39,060 

48,800 

Guerdon Modular Holdings, Inc .

August 13,
2014

  Multi-Family and Commercial

Modular Construction Company  

13% Secured Debt (Maturity —

March 1, 2019)

  Preferred Stock (404,998 shares)

  Common Stock (212,033 shares)
Warrants (6,208,877 equivalent

shares; Expiration — April 25,
2028; Strike price — $0.01 per unit) 

12,588 

  12,572 

12,002 

1,140 

2,983 

— 

— 

— 

— 

  16,695 

12,002 

115

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Gulf Manufacturing, LLC

Investment
Date(26)

August 31,
2007

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Manufacturer of Specialty

Fabricated Industrial Piping
Products

Gulf Publishing Holdings, LLC

April 29,
2016

  Energy Industry Focused Media

and Publishing

Harborside Holdings, LLC

  March 20,

2017

Real Estate Holding Company

Harris Preston Fund
Investments(12)(13)

October 1,
2017

Investment Partnership

Harrison Hydra-Gen, Ltd.

June 4, 2010   Manufacturer of Hydraulic

Generators

HW Temps LLC

July 2, 2015   Temporary Staffing Solutions

IDX Broker, LLC

  November 15,

2013

  Provider of Marketing and CRM
Tools for the Real Estate
Industry

Jensen Jewelers of Idaho, LLC

  November 14,

2006

Retail Jewelry Store

  Member Units (438 units)(8)

2,980 

11,690 

12.5% Secured Debt (Maturity —

April 29, 2021)

  Member Units (3,681 units)

12,666 

  12,594 

3,681 

  16,275 

12,594 

4,120 

16,714 

  Member units (100 units)

6,306 

9,500 

LP Interests (2717 MH, L.P.) (Fully

diluted 49.3%)

1,040 

1,133 

  Common Stock (107,456 shares)(8)

718 

8,070 

LIBOR Plus 13.00% (Floor 1.00%),
Current Coupon 15.35%, Secured
Debt (Maturity July 2, 2020)(9)
Preferred Member Units (3,200 units)

(8)

9,976 

9,938 

9,938 

3,942 

  13,880 

3,942 

13,880 

11.5% Secured Debt (Maturity —

November 15, 2020)

Preferred Member Units (5,607 units)

(8)

14,350 

  14,262 

14,350 

5,952 

  20,214 

13,520 

27,870 

Prime Plus 6.75% (Floor 2.00%),

Current Coupon 12.00%, Secured
Debt (Maturity — November 14,
2019)(9)

  Member Units (627 units)(8)

3,355 

3,337 

811 

4,148 

3,355 

5,090 

8,445 

KBK Industries, LLC

January 23,
2006

  Manufacturer of Specialty Oilfield

and Industrial Products

  Member Units (325 units)(8)

783 

8,610 

116

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Kickhaefer Manufacturing

  October 31,

Company, LLC

2018

  Precision Metal Parts
Manufacturing

Lamb Ventures, LLC

  May 30, 2008  Aftermarket Automotive Services

Chain

Market Force Information, LLC

July 28, 2017   Provider of Customer Experience

Management Services

MH Corbin Holding LLC

August 31,
2015

  Manufacturer and Distributor of
Traffic Safety Products

Mid-Columbia Lumber

  December 18,

  Manufacturer of Finger-Jointed

Products, LLC

2006

Lumber Products

11.5% Secured Debt (Maturity —

October 31, 2020)

11.5% Secured Debt (Maturity —

October 31, 2023)

  Member Units (581 units)

9.0% Secured Debt (Maturity —

October 31, 2048)

Member Units (KMC RE

Investor, LLC) (800 units)

11% Secured Debt (Maturity —

July 1, 2022)

  Preferred Stock (non-voting)

  Member Units (742 units)

9.5% Secured Debt (Lamb's Real

Estate Investment I, LLC)
(Maturity — March 31, 2027)
Member Units (Lamb's Real Estate

Investment I, LLC) (1,000 units)(8)  

1,064 

1,045 

1,045 

28,000 

  27,730 

  12,240 

27,730 

12,240 

4,006 

3,970 

3,970 

992 

  45,977 

992 

45,977 

8,339 

432 

8,306 

400 

5,273 

428 

625 

8,339 

400 

7,440 

432 

630 

  15,032 

17,241 

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.74%, Secured
Debt (Maturity — July 28, 2022)(9) 

LIBOR Plus 11.00% (Floor 1.00%),
Current Coupon 13.74%, Secured
Debt (Maturity — July 28, 2022)(9) 

  Member Units (657,113 units)

200 

200 

200 

22,800 

  22,624 

  14,700 

  37,524 

22,624 

13,100 

35,924 

10% Current / 3% PIK Secured Debt
(Maturity — August 31, 2020)(14)
(19)

Preferred Member Units (4,000

shares)

10% Secured Debt (Maturity —

January 15, 2020)

12% Secured Debt (Maturity —

January 15, 2020)

  Member Units (7,874 units)

9.5% Secured Debt (Mid-Columbia
Real Estate, LLC) (Maturity —
May 13, 2025)

Member Units (Mid-Columbia Real

Estate, LLC) (500 units)(8)

12,263 

  12,121 

11,733 

6,000 

  18,121 

1,000 

12,733 

1,750 

1,746 

3,900 

746 

3,880 

3,001 

746 

790 

  10,163 

1,746 

3,880 

3,860 

746 

1,470 

11,702 

117

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

MSC Adviser I, LLC(16)

  November 22,

  Third Party Investment Advisory

2013

Services

Member Units (Fully diluted 100.0%)

(8)

— 

65,748 

Mystic Logistics Holdings, LLC

August 18,
2014

  Logistics and Distribution

Services Provider for Large
Volume Mailers

NAPCO Precast, LLC

January 31,
2008

Precast Concrete Manufacturing

NexRev LLC

February 28,
2018

  Provider of Energy Efficiency
Products & Services

12% Secured Debt (Maturity —

August 15, 2019)

  Common Stock (5,873 shares)

7,536 

7,506 

2,720 

  10,226 

7,506 

210 

7,716 

LIBOR Plus 8.50%, Current Coupon
11.24%, Secured Debt (Maturity —
May 31, 2019)

  Member Units (2,955 units)(8)

11,475 

  11,464 

2,975 

  14,439 

11,475 

13,990 

25,465 

11% Secured Debt (Maturity —

February 28, 2023)

Preferred Member Units (86,400,000

units)(8)

17,440 

  17,288 

17,288 

6,880 

  24,168 

7,890 

25,178 

NRI Clinical Research, LLC

September 8,
2011

Clinical Research Service Provider 

NRP Jones, LLC

  December 22,

  Manufacturer of Hoses, Fittings

2011

and Assemblies

NuStep, LLC

January 31,
2017

  Designer, Manufacturer and
Distributor of Fitness
Equipment

14% Secured Debt (Maturity —

June 8, 2022)

Warrants (251,723 equivalent units;
Expiration — June 8, 2027; Strike
price — $0.01 per unit)

  Member Units (1,454,167 units)

6,685 

6,545 

6,685 

252 

765 

7,562 

660 

2,478 

9,823 

12% Secured Debt (Maturity —

March 20, 2023)

  Member Units (65,962 units)

6,376 

6,376 

3,717 

  10,093 

6,376 

5,960 

12,336 

12% Secured Debt (Maturity —

January 31, 2022)

  Preferred Member Units (406 units)

20,600 

  20,458 

  10,200 

  30,658 

20,458 

10,200 

30,658 

OMi Holdings, Inc .

  April 1, 2008   Manufacturer of Overhead Cranes  

  Common Stock (1,500 shares)(8)

1,080 

16,020 

Pegasus Research Group, LLC

January 6,
2011

  Provider of Telemarketing and

Data Services

  Member Units (460 units)

1,290 

7,680 

118

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

Portfolio Company(1)(20)

PPL RVs, Inc .

Investment
Date(26)

June 10,
2010

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Recreational Vehicle Dealer

LIBOR Plus 7.00% (Floor 0.50%),
Current Coupon 9.40%, Secured
Debt (Maturity — November 15,
2021)(9)

  Common Stock (1,962 shares)(8)

Principle Environmental, LLC

  February 1,

(d/b/a TruHorizon Environmental
Solutions)

2011

Noise Abatement Service Provider

13% Secured Debt (Maturity —

April 30, 2020)

Preferred Member Units (19,631

units)(8)

Warrants (1,018 equivalent units;
Expiration — January 31, 2021;
Strike price — $0.01 per unit)

Quality Lease Service, LLC

June 8,
2015

  Provider of Rigsite Accommodation

Unit Rentals and Related Services  

Zero Coupon Secured Debt

(Maturity — June 8, 2021)

  Member Units (1,000 units)

River Aggregates, LLC

  March 30,

  Processor of Construction

2011

Aggregates

15,100 

  15,006 

2,150 

  17,156 

15,100 

10,380 

25,480 

7,477 

7,398 

7,477 

4,600 

13,090 

1,200 

  13,198 

780 

21,347 

7,341 

7,341 

4,043 

  11,384 

6,450 

3,809 

10,259 

Tedder Industries, LLC

  August 31,

  Manufacturer of Firearm Holsters

2018

and Accessories

The MPI Group, LLC

  October 2,

2007

  Manufacturer of Custom Hollow
Metal Doors, Frames and
Accessories

Zero Coupon Secured Debt

(Maturity — June 30, 2018)(17)

750 

  Member Units (1,150 units)

Member Units (RA Properties, LLC)

(1,500 units)

750 

1,150 

369 

2,269 

722 

4,610 

2,930 

8,262 

12% Secured Debt (Maturity —

August 31, 2020)

12% Secured Debt (Maturity —

August 31, 2023)

  Preferred Member Units (440 units)

480 

480 

480 

16,400 

  16,246 

7,476 

  24,202 

16,246 

7,476 

24,202 

9% Secured Debt (Maturity —

October 2, 2019)

2,924 

  Series A Preferred Units (2,500 units)  

Warrants (1,424 equivalent units;

Expiration — July 1, 2024; Strike
price — $0.01 per unit)

Member Units (MPI Real Estate
Holdings, LLC) (100 units)(8)

2,924 

2,500 

1,096 

2,300 

8,820 

2,582 

440 

— 

2,479 

5,501 

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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Vision Interests, Inc .

June 5, 2007   Manufacturer / Installer of

Commercial Signage

Ziegler's NYPD, LLC

October 1,
2008

Casual Restaurant Group

13% Secured Debt (Maturity —

December 23, 2018)(17)

Series A Preferred Stock (3,000,000

shares)

  Common Stock (1,126,242 shares)

6.5% Secured Debt (Maturity —

October 1, 2019)

12% Secured Debt (Maturity —

October 1, 2019)

14% Secured Debt (Maturity —

October 1, 2019)

Warrants (587 equivalent units;

Expiration — October 1, 2019;
Strike price — $0.01 per unit)
Preferred Member Units (10,072

units)

Subtotal Control Investments (68.1% of net assets at fair value)

120

2,153 

2,153 

3,000 

3,706 

8,859 

1,000 

425 

998 

425 

2,750 

2,750 

600 

2,834 

7,607 

  $ 750,618  $

2,153 

3,740 

280 

6,173 

1,000 

425 

2,750 

— 

1,249 

5,424 
1,004,993 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
  Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Affiliate Investments(6)

Investment
Date(26)

Business Description

  Type of Investment(2)(3)(25)

  Principal(4)

  Cost(4)

Fair
Value(18)

AFG Capital Group, LLC

  November 7,

  Provider of Rent-to-Own Financing

2014

Solutions and Services

Barfly Ventures, LLC(10)

August 31,
2015

Casual Restaurant Group

BBB Tank Services, LLC

  April 8, 2016   Maintenance, Repair and Construction

Services to the Above-Ground Storage
Tank Market

Boccella Precast
Products LLC

June 30, 2017   Manufacturer of Precast Hollow Core

Concrete

Warrants (42 equivalent units;
Expiration — November 7,
2024; Strike price — $0.01 per
unit)

Preferred Member Units (186

units)(8)

   $

259  $

950 

1,200 

1,459 

3,980 

4,930 

12% Secured Debt (Maturity —

August 31, 2020)

  Options (3 equivalent units)
Warrant (1 equivalent unit;
Expiration — August 31,
2025; Strike price — $1.00 per
unit)

10,185 

10,039 

607 

10,018 

940 

473 

11,119 

410 

11,368 

LIBOR Plus 11.00% (Floor
1.00%), Current Coupon
13.35%, (Maturity — April 8,
2021)(9)

  Preferred Stock (non-voting)

  Member Units (800,000 units)

LIBOR Plus 10.00% (Floor
1.00%), Current Coupon
12.40%, Secured Debt
(Maturity — June 30, 2022)
(9)

  Member Units (2,160,000 units)

(8)

4,000 

3,833 

113 

800 

4,746 

3,833 

113 

230 

4,176 

15,724 

15,512 

2,160 

15,724 

5,080 

17,672 

20,804 

Boss Industries, LLC

July 1, 2014   Manufacturer and Distributor of Air,

Power and Other Industrial Equipment 

Preferred Member Units (2,242

units)(8)

2,246 

6,176 

121

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Bridge Capital Solutions

Corporation

Investment
Date(26)

April 18,
2012

Business Description

  Type of Investment(2)(3)(25)

  Principal(4)

  Cost(4)

Fair
Value(18)

  Financial Services and Cash Flow

Solutions Provider

13% Secured Debt (Maturity —

July 25, 2021)

Warrants (82 equivalent shares;
Expiration — July 25, 2026;
Strike price — $0.01 per
share)

13% Secured Debt (Mercury

Service Group, LLC)
(Maturity — July 25, 2021)

Preferred Member Units
(Mercury Service
Group, LLC) (17,742 units)(8)  

LIBOR Plus 9.25% (Floor
1.00%), Current Coupon
11.63%, Secured Debt
(Maturity — June 30, 2020)
(9)

Preferred Member Units (6 units;

6% cumulative)(8)(19)

7,500 

6,221 

6,221 

2,132 

4,020 

1,000 

994 

1,000 

1,000 

  10,347 

1,000 

12,241 

19,104 

  19,038 

19,038 

4,431 

  23,469 

4,431 

23,469 

12% Secured Debt (Maturity —

December 7, 2023)

  Member Units (66,968 units)(8)  

10,880 

  10,763 

751 

  11,514 

10,880 

2,717 

13,597 

Buca C, LLC

June 30, 2015   Casual Restaurant Group

CAI Software LLC

October 10,
2014

  Provider of Specialized Enterprise
Resource Planning Software

Chandler Signs

Holdings, LLC(10)

January 4,
2016

Sign Manufacturer

12% Current / 1% PIK Secured
Deb (Maturity — July 4,
2021)(19)

Class A Units (1,500,000 units)

(8)

Charlotte Russe, Inc(11)

  May 28, 2013   Fast-Fashion Retailer to Young Women  

8.50% Secured Debt

(Maturity — February 2,
2023)

  Common Stock (19,041 shares)  

4,546 

4,522 

1,500 
6,022 

7,932 

7,932 

3,141 

  11,073 

4,546 

2,120 
6,666 

3,930 

— 

3,930 

Condit Exhibits, LLC

July 1, 2008   Tradeshow Exhibits / Custom Displays

Provider

  Member Units (3,936 units)(8)

100 

1,950 

122

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Congruent Credit

Opportunities Funds(12)(13)

Investment
Date(26)

January 24,
2012

Business Description

  Type of Investment(2)(3)(25)

  Principal(4)

  Cost(4)

Fair
Value(18)

Investment Partnership

LP Interests (Congruent Credit
Opportunities Fund II, LP)
(Fully diluted 19.8%)

LP Interests (Congruent Credit
Opportunities Fund III, LP)
(Fully diluted 17.4%)(8)

LP Interests (Dos Rios

Partners, LP) (Fully diluted
20.2%)

LP Interests (Dos Rios

Partners — A, LP) (Fully
diluted 6.4%)

5,210 

855 

  16,959 

  22,169 

17,468 

18,323 

5,846 

7,153 

1,856 

7,702 

2,271 

9,424 

  Common Stock (6,250 shares)(8) 

480 

560 

LP Interests (EIG Global Private
Debt Fund-A, L.P.) (Fully
diluted 11.1%)(8)

LP Interests (Freeport Financial
SBIC Fund LP) (Fully diluted
9.3%)(8)

LP Interests (Freeport First Lien

Loan Fund III LP) (Fully
diluted 6.0%)(8)

553 

505 

5,974 

5,399 

  11,155 

  17,129 

10,980 

16,379 

LP Interests (HPEP 3, L.P.)

(Fully diluted 8.2%)

1,733 

1,733 

10.5% Secured Debt

(Maturity — December 2,
2021)

Preferred Member Units (226

units)(8)

Preferred Member Units (HRS
Services, ULC) (226 units)

8% Unsecured Convertible Debt
(Maturity — May 1, 2022)

  Member Units (318,462 units)(8) 

14,300 

  14,201 

14,300 

2,850 

150 

  17,201 

3,000 

3,000 

2,236 

5,236 

7,260 

380 

21,940 

3,720 

8,330 

12,050 

Dos Rios Partners(12)(13)

  April 25, 2013  

Investment Partnership

East Teak Fine Hardwoods,

  April 13, 2006  

Inc.

Distributor of Hardwood Products

EIG Fund Investments(12)(13)   November 6,

2015

Investment Partnership

Freeport Financial Funds(12)

June 13, 2013  

(13)

Investment Partnership

Harris Preston Fund
Investments(12)(13)

August 9,
2017

Investment Partnership

Hawk Ridge Systems, LLC(13) 

December 2,
2016

  Value-Added Reseller of Engineering

Design and Manufacturing Solutions

Houston Plating and
Coatings, LLC

January 8,
2003

  Provider of Plating and Industrial

Coating Services

123

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

I-45 SLF LLC(12)(13)

Investment
Date(26)

October 20,
2015

Business Description

  Type of Investment(2)(3)(25)

  Principal(4)

  Cost(4)

Fair
Value(18)

Investment Partnership

Member Units (Fully diluted

20.0%; 24.4% profits interest)
(8)

  16,200 

15,627 

L.F. Manufacturing
Holdings, LLC(10)

  December 23,

2013

Manufacturer of Fiberglass Products

Meisler Operating LLC

June 7, 2017   Provider of Short-term Trailer and

Container Rental

  Member Units (2,179,001 units)  

2,019 

2,060 

LIBOR Plus 8.50% (Floor
1.00%), Current Coupon
10.90%, Secured Debt
(Maturity — June 7, 2022)(9)  

Member Units (Milton Meisler

Holdings LLC) (48,555 units)  

12% PIK Secured Debt

(Maturity — June 30, 2021)
(19)

10% PIK Unsecured Debt

(Maturity — June 30, 2021)
(19)

  Preferred Stock (912 shares)
Warrants (5,333 equivalent

shares; Expiration — April 18,
2021; Strike price — $0.01 per
share)

12% Current / 3% PIK Secured
Debt (Maturity — March 31,
2019)(19)

Preferred Stock (1,740,000
shares) (non-voting)
Preferred Stock (1,500,000

shares)

20,480 

  20,312 

20,312 

4,855 

  25,167 

5,780 

26,092 

5,743 

5,743 

5,743 

53 

53 

1,981 

53 

— 

1,919 

9,696 

— 

5,796 

11,919 

  11,908 

11,908 

1,740 

3,927 

  17,575 

3,480 

340 

15,728 

12% Secured Debt (Maturity —
January 8, 2018)(14)(15)
Preferred Member Units (250

units)

30,785 

  30,281 

2,500 

  32,781 

250 

— 

250 

Class A Preferred Units (Salado
Acquisition, LLC) (2,000,000
units)(8)

2,000 

1,040 

OnAsset Intelligence, Inc .

  April 18, 2011   Provider of Transportation Monitoring /

Tracking Products and Services

PCI Holding Company, Inc.

  December 18,

  Manufacturer of Industrial Gas

2012

Generating Systems

Rocaceia, LLC (Quality Lease
and Rental Holdings, LLC)

January 8, 2013  Provider of Rigsite Accommodation
Unit Rentals and Related Services

Salado Stone

Holdings, LLC(10)

June 27, 2016   Limestone and Sandstone Dimension

Cut Stone Mining Quarries

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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

  Type of Investment(2)(3)(25)

  Principal(4)

  Cost(4)

Fair
Value(18)

SI East, LLC

  August 31, 2018  Rigid Industrial Packaging

Manufacturing

10.25% Current, Secured Debt

(Maturity — August 31, 2023)  

35,250 

  34,885 

34,885 

Preferred Member Units (157

units)

6,000 

  40,885 

6,000 

40,885 

Slick Innovations, LLC

September 13,
2018

Text Message Marketing Platform

14% Current, Secured Debt

(Maturity — September 13,
2023)

  Member Units (70,000 units)
Warrants (18,084 equivalent

units; Expiration —
September 13, 2028; Strike
price — $0.01 per unit)

LIBOR Plus 5.50% (Floor
1.00%), Current Coupon
8.01%, Secured Debt
(Maturity — August 20, 2024)
(9)

Preferred Stock (1,521,122

shares; 19% cumulative)(8)
(19)

Preferred Stock (2,281,682

shares; 19% cumulative)(8)
(19)

Preferred Stock (4,336,866

shares; 13.5% cumulative)(8)
(19)

  Common Stock (945,507 shares)  

Preferred Member Units (UWS
Investments, LLC) (716,949
units; 14% cumulative)(8)(19)  

Member Units (UWS

Investments, LLC) (4,000,000
units)

7,200 

6,959 

700 

181 

7,840 

6,959 

700 

181 

7,840 

2,993 

2,969 

2,969 

1,637 

1,637 

3,038 

3,038 

7,413 

— 

  15,057 

7,413 

1,420 

16,477 

837 

950 

4,000 

4,837 

2,330 

3,280 

UniTek Global Services, Inc.

(11)

  April 15, 2011   Provider of Outsourced Infrastructure
Services

Universal Wellhead Services

Holdings, LLC(10)

October 30,
2014

  Provider of Wellhead Equipment,

Designs, and Personnel to the Oil &
Gas Industry

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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Volusion, LLC

Investment
Date(26)

January 26,
2015

Business Description

  Type of Investment(2)(3)(25)

  Principal(4)

  Cost(4)

Fair
Value(18)

  Provider of Online Software-as-a-Service

eCommerce Solutions

11.5% Secured Debt

(Maturity — January 26,
2020)

8% Unsecured Convertible Debt
(Maturity — November 16,
2023)

Preferred Member Units

(4,876,670 units)

Warrants (1,831,355 equivalent

units; Expiration —
January 26, 2025; Strike
price — $0.01 per unit)

19,272 

18,407 

18,407 

297 

297 

297 

14,000 

14,000 

2,576 

35,280 

1,890 

34,594 

  $ 381,307  $

359,890 

Subtotal Affiliate Investments (24.4% of net assets at fair value)

126

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
  Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Non-Control/Non-Affiliate Investments(7)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

AAC Holdings, Inc.(11)

Substance Abuse Treatment Service

June 30, 2017  

Provider

Adams Publishing
Group, LLC(10)

  November 19,

2015

  Local Newspaper Operator

ADS Tactical, Inc.(10)

March 7,
2017

Value-Added Logistics and Supply
Chain Provider to the Defense
Industry

Aethon United BR LP(10)

September 8,
2017

Oil & Gas Exploration &

Production

Allen Media, LLC.(11)

  September 18,

Operator of Cable Television

2018

Networks

Allflex Holdings III Inc.(11)

July 18, 2013  

Manufacturer of Livestock
Identification Products

American Nuts, LLC(10)

April 10,
2018

Roaster, Mixer and Packager of

Bulk Nuts and Seeds

127

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 9.28%, Secured
Debt (Maturity — June 30, 2023)
(9)

Prime Plus 4.00% (Floor 1.00%),

Current Coupon 9.50%, Secured
Debt (Maturity — July 3, 2023)
(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.93%, Secured
Debt (Maturity — July 3, 2023)
(9)

LIBOR Plus 6.25% (Floor 0.75%),
Current Coupon 8.77%, Secured
Debt (Maturity — July 26, 2023)
(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 9.14%, Secured
Debt (Maturity — September 8,
2023)(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 9.21%, Secured
Debt (Maturity — August 30,
2023)(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.48%, Secured
Debt (Maturity — July 19, 2021)
(9)

LIBOR Plus 8.50% (Floor 1.00%)
PIK, 9.50% PIK Secured Debt,
(Maturity — April 10, 2023)(9)
(19)

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 10.90%, Secured
Debt (Maturity — April 10, 2023)
(9)

  $

14,500  $

14,245  $

14,246 

4,250 

4,160 

4,160 

8,108 

7,956 

12,116 

7,956 

12,116 

16,416 

16,263 

15,306 

4,063 

4,011 

3,817 

17,143 

16,670 

16,800 

13,120 

13,077 

13,013 

1,127 

1,115 

1,115 

11,194 

11,000 

12,115 

10,475 

11,590 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

American Scaffold Holdings, Inc.

(10)

Investment
Date(26)

June 14,
2016

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Marine Scaffolding Service Provider

American Teleconferencing

  May 19,

Services, Ltd.(11)

2016

Provider of Audio Conferencing and
Video Collaboration Solutions

Apex Linen Service, Inc .

  October 30,

2015

Industrial Launderers

APTIM Corp.(11)

  August 17,

Engineering, Construction &

2018

Procurement

Arcus Hunting LLC(10)

January 6,
2015

Manufacturer of Bowhunting and

Archery Products and Accessories

Arise Holdings, Inc.(10)

  March 12,

Tech-Enabled Business Process

2018

Outsourcing

ASC Ortho Management
Company, LLC(10)

  August 31,

2018

  Provider of Orthopedic Services

ATI Investment Sub, Inc.(11)

July 11,
2016

Manufacturer of Solar Tracking

Systems

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 9.30%, Secured
Debt (Maturity — March 31,
2022)(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 9.09%, Secured
Debt (Maturity — December 8,
2021)(9)

LIBOR Plus 9.00% (Floor 1.00%),
Current Coupon 11.35%, Secured
Debt (Maturity — October 30,
2022)(9)

16% Secured Debt (Maturity —

October 30, 2022)

6,656 

6,592 

6,623 

15,940 

15,186 

13,310 

2,400 

2,400 

2,400 

14,416 

14,357 

16,757 

14,357 

16,757 

7.75% Secured Debt (Maturity —

June 15, 2025)

12,452 

10,633 

9,464 

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.40%, Secured
Debt (Maturity — November 13,
2019)(9)

15,394 

15,351 

15,394 

  Preferred Stock(1,000,000 shares)

1,000 

1,704 

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 9.90%, Secured
Debt (Maturity — August 31,
2023)(9)

13.25% PIK Secured Debt

(Maturity — December 1, 2023)
(19)

4,660 

4,559 

4,559 

1,624 

1,587 

6,146 

1,587 

6,146 

LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.76%, Secured
Debt (Maturity — June 22, 2021)
(9)

4,385 

4,346 

3,943 

128

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

ATX Networks Corp.(11)(13)(21)  

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

June 30, 2015 

Provider of Radio Frequency
Management Equipment

Berry Aviation, Inc.(10)

July 6, 2018   Charter Airline Services

BigName Commerce, LLC(10)

Provider of Envelopes and

Complimentary Stationery
Products

May 11, 2017 

Binswanger Enterprises, LLC(10)   March 10,

Glass Repair and Installation Service

2017

Provider

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.39% / 1.00%
PIK, Current Coupon Plus PIK
9.39%, Secured Debt (Maturity —
June 11, 2021)(9)(19)

10.50% Current / 1.5% PIK,
Secured Debt (Maturity —
January 6, 2024)(19)

Preferred Member Units (Berry
Acquisition, LLC) (1,548,387
units; 8% cumulative)(8)(19)

14,121 

13,844 

13,415 

4,485 

4,443 

4,443 

1,609 

6,052 

1,609 

6,052 

LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.65%, Secured
Debt (Maturity — May 11, 2022)
(9)

2,462 

2,440 

2,369 

Bluestem Brands, Inc.(11)

  December 19,

Multi-Channel Retailer of General

2013

Merchandise

Brainworks Software, LLC(10)

August 12,
2014

Advertising Sales and Newspaper

Circulation Software

Brightwood Capital Fund
Investments(12)(13)

July 21, 2014  

Investment Partnership

Cadence Aerospace LLC(10)

  November 14,

2017

  Aerostructure Manufacturing

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.74%, Secured
Debt (Maturity — March 9, 2022)
(9)

  Member Units (1,050,000 units)

14,368 

14,169 

1,050 

15,219 

13,743 

1,330 

15,073 

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 10.02%, Secured
Debt (Maturity — November 6,
2020)(9)

Prime Plus 9.25% (Floor 3.25%),

Current Coupon 14.70%, Secured
Debt (Maturity — July 22, 2019)
(9)

LP Interests (Brightwood Capital

Fund III, LP) (Fully diluted 1.6%)
(8)

LP Interests (Brightwood Capital

Fund IV, LP) (Fully diluted 0.6%)
(8)

11,375 

11,262 

7,356 

6,733 

6,723 

6,590 

12,000 

10,264 

2,000 

14,000 

2,063 

12,327 

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 9.06%, Secured
Debt (Maturity — November 14,
2023)(9)

19,470 

19,301 

18,244 

129

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

California Pizza Kitchen, Inc.(11)  

Investment
Date(26)

August 29,
2016

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

  Casual Restaurant Group

Central Security Group, Inc.(11)

  December 4,

Security Alarm Monitoring Service

2017

Provider

Cenveo Corporation(11)

September 4,
2015

Provider of Digital Marketing

Agency Services

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.53%, Secured
Debt (Maturity — August 23,
2022)(9)

LIBOR Plus 5.63% (Floor 1.00%),
Current Coupon 8.15%, Secured
Debt (Maturity — October 6,
2021)(9)

Libor Plus 9.00% (Floor 1.00%),

Current Coupon 11.54%, Secured
Debt (Maturity — June 7, 2023)
(9)

  Common Stock (177,130 shares)

12,739 

12,707 

12,389 

13,884 

13,821 

13,867 

6,370 

6,128 

5,309 

11,437 

6,048 

2,746 

8,794 

Clarius BIGS, LLC(10)

  September 23,

2014

  Prints & Advertising Film Financing 

Clickbooth.com, LLC(10)

  December 5,

Provider of Digital Advertising

2017

Performance Marketing Solutions  

Construction Supply

Investments, LLC(10)

December 29,
2016

Distribution Platform of Specialty

Construction Materials to
Professional Concrete and
Masonry Contractors

15% PIK Secured Debt (Maturity —

January 5, 2015)(14)(17)

2,908 

2,908 

44 

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 10.90%, Secured
Debt (Maturity — December 5,
2022)(9)

2,925 

2,876 

2,750 

CTVSH, PLLC(10)

August 3,
2017

Emergency Care and Specialty
Service Animal Hospital

Darr Equipment LP(10)

April 15,
2014

  Heavy Equipment Dealer

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.62%, Secured
Debt (Maturity — June 30, 2023)
(9)

  Member Units (42,207 units)

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.74%, Secured
Debt (Maturity — August 3,
2022)(9)

11.5% Current / 1% PIK Secured

Debt (Maturity — June 22, 2023)
(19)

Warrants (915,734 equivalent units;

Expiration — December 23,
2023; Strike price — $1.50 per
unit)

130

15,423 

15,355 

4,221 

19,576 

15,384 

4,290 

19,674 

11,250 

11,163 

10,939 

5,839 

5,839 

5,723 

474 

6,313 

60 

5,783 

 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Digital River, Inc.(11)

Investment
Date(26)

February 24,
2015

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Provider of Outsourced e-Commerce

Solutions and Services

DTE Enterprises, LLC(10)

April 13,
2018

Industrial Powertrain Repair and

Services

Dynamic Communities, LLC(10)

July 17, 2018  

Developer of Business Events and
Online Community Groups

Elite SEM INC.(10)

August 31,
2018

Provider of Digital Marketing

Agency Services

EnCap Energy Fund
Investments(12)(13)

  December 28,

2010

Investment Partnership

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.78%, Secured
Debt (Maturity — February 12,
2021)(9)

LIBOR Plus 7.50% (Floor 1.50%),
Current Coupon 10.12%, Secured
Debt (Maturity — April 13, 2023)
(9)

Class AA Preferred Member Units
(non-voting; 10% cumulative)(8)
(19)

Class A Preferred Member Units

(776,316 units)(8)

LIBOR Plus 8.00%(Floor 1.00%),

Current Coupon 10.80%, Secured
Debt(Maturity — July 17, 2023)
(9)

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 11.27%, Secured
Debt (Maturity — February 1,
2022)(9)(23)

LP Interests (EnCap Energy Capital
Fund VIII, L.P.) (Fully diluted
0.1%)(8)

LP Interests (EnCap Energy Capital
Fund VIII Co- Investors, L.P.)
(Fully diluted 0.4%)(8)

LP Interests (EnCap Energy Capital

Fund IX, L.P.) (Fully diluted
0.1%)(8)

LP Interests (EnCap Energy Capital

Fund X, L.P.) (Fully diluted
0.1%)(8)

LP Interests (EnCap Flatrock

Midstream Fund II, L.P.) (Fully
diluted 0.8%)(8)

LP Interests (EnCap Flatrock

Midstream Fund III, L.P.) (Fully
diluted 0.2%)(8)

10,146 

10,074 

10,044 

12,492 

12,260 

11,580 

778 

776 

13,814 

778 

1,300 

13,658 

5,600 

5,495 

5,495 

6,875 

6,750 

6,750 

3,661 

2,003 

2,103 

1,153 

4,430 

3,784 

7,629 

7,692 

5,881 

4,538 

5,423 

29,127 

5,051 

24,221 

Encino Acquisition Partners

  November 16,

Holdings, Inc.(11)

2018

  Oil & Gas Exploration & Production 

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 9.27%, Secured
Debt (Maturity — October 29,
2025)(9)

9,000 

8,911 

8,595 

131

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
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Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

EPIC Y-Grade Services, LP(11)

June 22, 2018   NGL Transportation & Storage

LIBOR Plus 5.50%, Current

Coupon 8.02%, Secured Debt
(Maturity — June 13, 2024)

17,500 

17,175 

16,625 

Evergreen Skills Lux S.á r.l.
(d/b/a Skillsoft)(11)(13)

Technology-based Performance

May 5, 2014  

Support Solutions

Extreme Reach, Inc.(11)

March 31,
2015

Integrated TV and Video
Advertising Platform

Felix Investments Holdings II(10)  

August 9,
2017

  Oil & Gas Exploration & Production 

Flavors Holdings Inc.(11)

October 15,
2014

Global Provider of Flavoring and

Sweetening Products

GeoStabilization International

  December 31,

Geohazard Engineering Services &

(GSI)(11)

2018

Maintenance

GI KBS Merger Sub LLC(11)

  November 10,

Outsourced Janitorial Service

2014

Provider

LIBOR Plus 8.25% (Floor 1.00%),
Current Coupon 10.77%, Secured
Debt (Maturity — April 28, 2022)
(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.78%, Secured
Debt (Maturity — February 7,
2020)(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 9.10%, Secured
Debt (Maturity — August 9,
2022)(9)

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 8.55%, Secured
Debt (Maturity — April 3, 2020)
(9)

6,999 

6,901 

3,931 

16,460 

16,451 

16,371 

3,333 

3,279 

3,141 

12,295 

12,044 

11,434 

LIBOR Plus 5.50%, Current

Coupon 8.09%, Secured Debt
(Maturity — December 19, 2025)  

16,500 

16,335 

16,418 

Good Source Solutions, Inc.(10)

October 23,
2018

  Specialized Food Distributor

LIBOR Plus 4.75% (Floor 1.00%),
Current Coupon 7.43%, Secured
Debt (Maturity — October 29,
2021)(9)

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 11.02%, Secured
Debt (Maturity — April 29, 2022)
(9)

LIBOR Plus 8.34% (Floor 1.00%),
Current Coupon 11.14%, Secured
Debt (Maturity — June 29, 2023)
(9)(23)

132

9,195 

9,139 

9,207 

3,915 

3,797 

12,936 

3,949 

13,156 

5,000 

4,952 

4,952 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

GoWireless Holdings, Inc.(11)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Provider of Wireless

December 31,
2017

Telecommunications Carrier
Services

Grupo Hima San Pablo, Inc.(11)

March 7,
2013

  Tertiary Care Hospitals

HDC/HW Intermediate

  December 21,

Managed Services and Hosting

Holdings(10)

2018

Provider

Hoover Group, Inc.(10)(13)

Provider of Storage Tanks and

October 21,
2016

Related Products to the Energy
and Petrochemical Markets

Hunter Defense Technologies, Inc.

  March 29,

Provider of Military and Commercial

(10)

2018

Shelters and Systems

Hydrofarm Holdings LLC(10)

  May 18, 2017  Wholesaler of Horticultural Products  

iEnergizer Limited(11)(13)(21)

Provider of Business Outsourcing

May 8, 2013  

Solutions

Implus Footcare, LLC(10)

Provider of Footwear and Related

June 1, 2017  

Accessories

133

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 9.02%, Secured
Debt (Maturity — December 22,
2024)(9)

LIBOR Plus 7.00% (Floor 1.50%),
Current Coupon 9.52%, Secured
Debt (Maturity — January 31,
2019)(9)

13.75% Secured Debt (Maturity —

October 15, 2018)(17)

17,325 

17,170 

16,856 

4,688 

4,688 

2,055 

2,040 

6,728 

3,629 

226 

3,855 

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 10.29%, Secured
Debt (Maturity — December 21,
2023)(9)

3,201 

3,132 

3,132 

LIBOR Plus 6.00%, Current

Coupon 8.71%, Secured Debt
(Maturity — January 28, 2020)
LIBOR Plus 7.25% (Floor 1.00%),
Current Coupon 9.90%, Secured
Debt (Maturity — January 28,
2021)(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.80%, Secured
Debt (Maturity — March 29,
2023)(9)

LIBOR Plus 10.00%, Current

Coupon 3.69% / 8.61% PIK,
Current Coupon Plus PIK 12.30%
Secured Debt (Maturity —
May 12, 2022)(19)

LIBOR Plus 6.00% (Floor 1.25%),
Current Coupon 8.53%, Secured
Debt (Maturity — May 1, 2019)
(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 9.55%, Secured
Debt (Maturity — April 30, 2021)
(9)

5,250 

4,803 

4,771 

9,395 

9,053 

13,856 

8,831 

13,602 

16,080 

15,757 

15,077 

7,235 

7,139 

5,660 

14,100 

14,052 

14,117 

18,819 

18,629 

18,390 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Independent Pet Partners

  November 20,

Omnichannel Retailer of Specialty

Intermediate Holdings, LLC(10)

2018

Pet Products

Industrial Services

Acquisition, LLC(10)

June 17, 2016  

Industrial Cleaning Services

LIBOR Plus 9.00% (Floor 1.00%),
Current Coupon 11.90%, Secured
Debt (Maturity — November 19,
2023)(9)

  Member Units (1,558,333 units)

6% Current / 7% PIK Unsecured

Debt (Maturity — December 17,
2022)(19)

Preferred Member Units (Industrial
Services Investments, LLC) (144
units; 10% cumulative)(8)(19)
Member Units (Industrial Services
Investments, LLC) (900 units)

2,078 

2,037 

1,558 

3,595 

2,037 

1,558 

3,595 

4,885 

4,822 

4,470 

94 

900 

5,816 

94 

210 

4,774 

Inn of the Mountain Gods Resort

and Casino(11)

October 30,
2013

  Hotel & Casino Owner & Operator  

Intermedia Holdings, Inc.(11)

August 3,
2018

Unified Communications as a

Service

9.25% Secured Debt (Maturity —

November 30, 2020)

7,832 

7,479 

7,480 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.52%, Secured
Debt (Maturity — July 19, 2025)
(9)

11,571 

11,461 

11,557 

irth Solutions, LLC

  December 29,

Provider of Damage Prevention

2010

Information Technology Services  

  Member Units (27,893 units)

1,441 

2,830 

Isagenix International, LLC(11)

Direct Marketer of Health &

June 21, 2018  

Wellness Products

JAB Wireless, Inc.(10)

  May 2, 2018   Fixed Wireless Broadband Provider  

Jacent Strategic

  September 16,

Merchandising, LLC(10)

2015

  General Merchandise Distribution

Jackmont Hospitality, Inc.(10)

Franchisee of Casual Dining

May 26, 2015  

Restaurants

134

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 8.55%, Secured
Debt (Maturity — June 14, 2025)
(9)

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.39%, Secured
Debt (Maturity — May 2, 2023)
(9)

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 10.27%, Secured
Debt (Maturity — September 16,
2020)(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 9.26%, Secured
Debt (Maturity — May 26, 2021)
(9)

6,268 

6,208 

6,095 

14,888 

14,754 

13,987 

10,740 

10,705 

10,740 

4,165 

4,157 

4,165 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Jacuzzi Brands LLC(11)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Manufacturer of Bath and Spa

June 30, 2017 

Products

Joerns Healthcare, LLC(11)

Manufacturer and Distributor of
Health Care Equipment &
Supplies

April 3, 2013  

Kore Wireless Group Inc.(11)

  December 31,

2018

  Mission Critical Software Platform  

Larchmont Resources, LLC(11)

August 13,
2013

  Oil & Gas Exploration & Production  

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.52%, Secured
Debt (Maturity — June 28, 2023)
(9)

3,850 

3,788 

3,831 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.71% Secured
Debt (Maturity — May 9, 2020)
(9)

13,387 

13,335 

11,998 

LIBOR Plus 5.50%, Current

Coupon 8.29%, Secured Debt
(Maturity — December 20, 2024)  

6,667 

6,600 

6,631 

LIBOR Plus 9.00% (Floor 1.00%)
PIK, 11.77% PIK Secured Debt,
(Maturity — August 7, 2020)(9)
(19)

Member Units (Larchmont

Intermediate Holdco, LLC) (2,828
units)

2,312 

2,312 

2,266 

353 

2,665 

707 

2,973 

LKCM Headwater

Investments I, L.P.(12)(13)

January 25,
2013

Investment Partnership

  LP Interests (Fully diluted 2.3%)(8)  

1,780 

3,501 

Logix Acquisition

Company, LLC(10)

June 24, 2016  Competitive Local Exchange Carrier  

Looking Glass

Investments, LLC(12)(13)

July 1, 2015   Specialty Consumer Finance

LSF9 Atlantis Holdings, LLC(11)  

Provider of Wireless

May 17, 2017 

Telecommunications Carrier
Services

Lulu's Fashion Lounge, LLC(10)

August 31,
2017

  Fast Fashion E-Commerce Retailer

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 8.27%, Secured
Debt (Maturity — December 22,
2024)(9)

12,927 

12,725 

12,797 

  Member Units (2.5 units)

Member Units (LGI Predictive

Analytics LLC) (190,712 units)(8) 

125 

49 

174 

57 

33 

90 

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.38%, Secured
Debt (Maturity — May 1, 2023)
(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.52%, Secured
Debt (Maturity — August 28,
2022)(9)

9,710 

9,694 

9,269 

12,358 

12,060 

11,987 

135

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

MHVC Acquisition Corp.(11)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Provider of differentiated information
solutions, systems engineering, and
analytics

May 8, 2017 

Mills Fleet Farm Group, LLC(10)   October 24,

Omnichannel Retailer of Work, Farm

2018

and Lifestyle Merchandise

Mobileum(10)

  October 23,

2018

Provider of big data analytics to
telecom service providers

NBG Acquisition Inc(11)

April 28,
2017

  Wholesaler of Home Décor Products  

New Era Technology, Inc.(10)

June 30,
2018

Managed Services and Hosting

Provider

New Media

Holdings II LLC(11)(13)

June 10,
2014

  Local Newspaper Operator

NNE Partners, LLC(10)

  March 2,

2017

  Oil & Gas Exploration & Production  

North American Lifting
Holdings, Inc.(11)

  February 26,

2015

  Crane Service Provider

Novetta Solutions, LLC(11)

June 21,
2017

Provider of Advanced Analytics

Solutions for Defense Agencies

136

LIBOR Plus 5.25% (Floor 1.00%),
Current Coupon 8.06%, Secured
Debt (Maturity — April 29, 2024)
(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.77%, Secured
Debt (Maturity — October 24,
2024)(9)

LIBOR Plus 10.25% (Floor 0.75%),
Current Coupon 13.06%, Secured
Debt (Maturity — May 1, 2022)
(9)

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 8.09%, Secured
Debt (Maturity — April 26, 2024)
(9)

LIBOR Plus 6.50% (Floor 1.00%),
Current Coupon 8.99%, Secured
Debt (Maturity — June 22, 2023)
(9)

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.77%, Secured
Debt (Maturity — July 14, 2022)
(9)

15,475 

15,442 

15,088 

15,000 

14,707 

15,000 

7,500 

7,429 

7,429 

4,292 

4,235 

4,184 

7,654 

7,526 

7,616 

21,125 

20,797 

20,967 

LIBOR Plus 8.00%, Current

Coupon 10.74%, Secured Debt
(Maturity — March 2, 2022)

20,417 

20,260 

19,572 

LIBOR Plus 4.50% (Floor 1.00%),
Current Coupon 7.30%, Secured
Debt (Maturity — November 27,
2020)(9)

LIBOR Plus 5.00% (Floor 1.00%),
Current Coupon 7.53%, Secured
Debt (Maturity — October 17,
2022)(9)

7,664 

7,093 

6,997 

15,478 

15,091 

15,091 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

NTM Acquisition Corp.(11)

Investment
Date(26)

July 12,
2016

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

Provider of B2B Travel Information

Content

Ospemifene Royalty Sub LLC

Estrogen-Deficiency Drug

(QuatRx)(10)

July 8, 2013  

Manufacturer and Distributor

Permian Holdco 2, Inc.(11)

  February 12,

2013

  Storage Tank Manufacturer

Pernix Therapeutics
Holdings, Inc.(10)

  August 18,

2014

  Pharmaceutical Royalty

Pier 1 Imports, Inc.(11)

  February 20,

Decorative Home Furnishings

2018

Retailer

Point.360(10)

Fully Integrated Provider of Digital

July 8, 2015  

Media Services

PricewaterhouseCoopers Public

Sector LLP(11)

May 24,
2018

Provider of Consulting Services to

Governments

Prowler Acquisition Corp.(11)

  February 11,

Specialty Distributor to the Energy

2014

Sector

PT Network, LLC(10)

November 1,
2013

Provider of Outpatient Physical
Therapy and Sports Medicine
Services

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.96%, Secured
Debt (Maturity — June 7, 2022)
(9)

4,419 

4,396 

4,375 

11.5% Secured Debt (Maturity —

November 15, 2026)(14)

4,975 

4,975 

937 

14% PIK Unsecured Debt

(Maturity — October 15, 2021)
(19)

Preferred Stock (Permian

Holdco 1, Inc.) (154,558 units)

396 

396 

799 

1,195 

396 

920 

1,316 

12% Secured Debt (Maturity —

August 1, 2020)

3,031 

3,031 

2,037 

LIBOR Plus 3.50% (Floor 1.00%),
Current Coupon 6.38%, Secured
Debt (Maturity — April 30, 2021)
(9)

Warrants (65,463 equivalent shares;
Expiration — July 7, 2020; Strike
price — $0.75 per share)

  Common Stock (163,658 shares)

LIBOR Plus 7.50%, Current

Coupon 9.74%, Secured Debt
(Maturity — May 1, 2026)

LIBOR Plus 4.50% (Floor 1.00%),
Current Coupon 7.30%, Secured
Debt (Maturity — January 28,
2020)(9)

9,736 

9,152 

6,998 

69 

273 

342 

— 

5 

5 

8,000 

7,962 

8,040 

20,028 

19,122 

19,727 

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 7.99%, Secured
Debt (Maturity — November 30,
2021)(9)

8,732 

8,732 

8,619 

137

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Research Now Group, Inc. and

Survey Sampling
International, LLC(11)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

December 31,
2017

Provider of Outsourced Online

Surveying

Resolute Industrial, LLC(10)

HVAC Equipment Rental and

July 26, 2017  

Remanufacturing

RM Bidder, LLC(10)

  November 12,

2015

Scripted and Unscripted TV and
Digital Programming Provider

SAFETY Investment
Holdings, LLC

Provider of Intelligent Driver

April 29,
2016

Record Monitoring Software and
Services

Salient Partners L.P.(11)

Provider of Asset Management

June 25, 2015  

Services

SiTV, LLC(11)

  September 26,

2017

  Cable Networks Operator

SMART Modular

Technologies, Inc.(10)(13)

August 18,
2017

Provider of Specialty Memory

Solutions

Sorenson Communications, Inc.

(11)

June 7, 2016  

Manufacturer of Communication
Products for Hearing Impaired

Staples Canada ULC(10)(13)(21)

  September 14,

2017

  Office Supplies Retailer

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 8.02%, Secured
Debt (Maturity — December 20,
2024)(9)

15,360 

14,757 

15,110 

  Member Units (601 units)

750 

920 

Warrants (327,532 equivalent units;
Expiration — October 20, 2025;
Strike price — $14.28 per unit)

  Member Units (2,779 units)

425 

46 

471 

— 

11 

11 

  Member Units (2,000,000 units)

2,000 

1,820 

LIBOR Plus 5.75% (Floor 1.00%),
Current Coupon 8.27%, Secured
Debt (Maturity — June 9, 2021)
(9)

7,313 

7,280 

7,280 

10.375% Secured Debt (Maturity —

July 1, 2019)

10,429 

7,196 

3,911 

LIBOR Plus 6.25% (Floor 1.00%),
Current Coupon 8.86%, Secured
Debt (Maturity — August 9,
2022)(9)

LIBOR Plus 5.75% (Floor 2.25%),
Current Coupon 8.56%, Secured
Debt (Maturity — April 30, 2020)
(9)

LIBOR Plus 7.00% (Floor 1.00%),
Current Coupon 9.26%, Secured
Debt (Maturity — September 12,
2023)(9)(22)

19,000 

18,793 

19,095 

13,097 

13,059 

13,048 

16,867 

16,589 

14,026 

138

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

STL Parent Corp.(10)

  December 14,

Manufacturer and Servicer of Tank

2018

and Hopper Railcars

Strike, LLC(11)

  December 12,

2016

Pipeline Construction and
Maintenance Services

LIBOR Plus 7.00%, Current

Coupon 9.52%, Secured Debt
(Maturity — December 5, 2022)

15,000 

14,475 

14,475 

LIBOR Plus 8.00% (Floor 1.00%),
Current Coupon 10.59%, Secured
Debt (Maturity — November 30,
2022)(9)

9,000 

8,797 

9,011 

TE Holdings, LLC(11)

  December 5,

2013

  Oil & Gas Exploration & Production 

  Member Units (97,048 units)

970 

66 

Tectonic Holdings, LLC

  May 15, 2017   Financial Services Organization

  Member Units (200,000 units)(8)

2,000 

2,420 

TeleGuam Holdings, LLC(11)

Cable and Telecom Services

June 26, 2013  

Provider

TGP Holdings III LLC(11)

  September 30,

2017

  Outdoor Cooking & Accessories

The Pasha Group(11)

February 2,
2018

Diversified Logistics and

Transportation Provided

TMC Merger Sub Corp.(11)

  December 22,

Refractory & Maintenance Services

2016

Provider

TOMS Shoes, LLC(11)

  November 13,

2014

Global Designer, Distributor, and
Retailer of Casual Footwear

Turning Point Brands, Inc.(10)

(13)

February 17,
2017

Marketer/Distributor of Tobacco

Products

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 11.02%, Secured
Debt (Maturity — April 12, 2024)
(9)

LIBOR Plus 8.50% (Floor 1.00%),
Current Coupon 11.30%, Secured
Debt (Maturity — September 25,
2025)(9)

LIBOR Plus 7.50% (Floor 1.00%),
Current Coupon 10.06%, Secured
Debt (Maturity — January 26,
2023)(9)

LIBOR Plus 6.75% (Floor 1.00%),
Current Coupon 9.31%, Secured
Debt (Maturity — October 31,
2022)(9)(24)

LIBOR Plus 5.50% (Floor 1.00%),
Current Coupon 8.30%, Secured
Debt (Maturity — October 30,
2020)(9)

7,750 

7,620 

7,798 

5,500 

5,433 

5,335 

10,938 

10,655 

11,006 

17,207 

17,014 

17,121 

4,813 

4,635 

3,798 

LIBOR Plus 7.00%, Current

Coupon 9.46%, Secured Debt
(Maturity — March 7, 2024)

8,500 

8,424 

8,585 

139

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment
Date(26)

Business Description

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

Fair
Value(18)

TVG-I-E CMN

  November 3,

Organic Lead Generation for Online

ACQUISITION, LLC(10)

2016

Postsecondary Schools

U.S. TelePacific Corp.(11)

  September 14,

Provider of Communications and

2016

Managed Services

VIP Cinema Holdings, Inc.(11)

March 9,
2017

Supplier of Luxury Seating to the

Cinema Industry

Vistar Media, Inc.(10)

February 17,
2017

Operator of Digital Out-of-Home

Advertising Platform

Wireless Vision

Holdings, LLC(10)

Provider of Wireless

September 29,
2017

Telecommunications Carrier
Services

YS Garments, LLC(11)

Designer and Provider of Branded

August 22,
2018

Activewear

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.52%, Secured
Debt (Maturity — November 3,
2021)(9)

LIBOR Plus 5.00% (Floor 1.00%),
Current Coupon 7.80%, Secured
Debt (Maturity — May 2, 2023)
(9)

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.53%, Secured
Debt (Maturity — March 1, 2023)
(9)

LIBOR Plus 10.00% (Floor 1.00%),
Current Coupon 12.74%, Secured
Debt (Maturity — February 16,
2022)(9)

Warrants (70,207 equivalent shares;
Expiration — February 17, 2027;
Strike price — $0.01 per share)

19,503 

19,191 

19,454 

18,491 

18,344 

17,363 

10,494 

10,451 

10,304 

3,263 

3,048 

2,987 

331 

3,379 

790 

3,777 

LIBOR Plus 8.91% (Floor 1.00%),
Current Coupon 11.41%, Secured
Debt (Maturity — September 29,
2022)(9)(28)

14,279 

14,055 

13,414 

Zilliant Incorporated

Price Optimization and Margin

June 15, 2012  

Management Solutions

LIBOR Plus 6.00% (Floor 1.00%),
Current Coupon 8.42% Secured
Debt (Maturity — August 9,
2024)(9)

  Preferred Stock (186,777 shares)
Warrants (952,500 equivalent

shares; Expiration — June 15,
2022; Strike price — $0.001 per
share)

140

14,906 

14,764 

14,756 

154 

260 

1,071 

1,225 

1,189 

1,449 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

Portfolio Company(1)(20)

Investment Date(26)

  Business Description  

Type of Investment(2)(3)(25)

  Principal(4)   Cost(4)

  Fair Value(18)  

Subtotal Non-Control/Non-

Affiliate Investments (73.8% of
net assets at fair value)

Total Portfolio Investments,

December 31, 2018

   $ 1,137,108  $

1,089,026 

   $ 2,269,033  $

2,453,909 

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

(21)

(22)

(23)

(24)

All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the
Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the
Funds. 

Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

See Note C and Schedule 12-14 for a summary of geographic location of portfolio companies. 

Principal is net of repayments. Cost is net of repayments and accumulated unearned income.  

Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act"), as investments in which more than 25% of the voting securities are owned or where
the ability to nominate greater than 50% of the board representation is maintained. 

Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as
Control investments. 

Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

Income producing through dividends or distributions.  

Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that
may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually,
quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the
weighted average annual stated interest rate in effect at December 31, 2018. As noted in this schedule, 64% of the loans (based on the par amount) contain LIBOR floors which range
between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.03%. 

Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

Other Portfolio investment. See Note B for a description of Other Portfolio investments.

Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any
additional non-qualifying assets. 

Non-accrual and non-income producing investment.  

Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is
complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status. 

External Investment Manager. Investment is not encumbered as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

PIK interest income and cumulative dividend income represent income not paid currently in cash.

All portfolio company headquarters are based in the United States, unless otherwise noted.  

Portfolio company headquarters are located outside of the United States. 

In connection with the Company's debt investment in Staples Canada ULC in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the
Company's investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $20.4 million Canadian Dollars and receive $15.7 million U.S. Dollars
with a settlement date of September 12, 2019. The unrealized appreciation on the forward foreign currency contract is $0.6 million as of December 31, 2018. 

The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive
priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than
the contractual stated interest rate of LIBOR plus 6.00% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. 

The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive
priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than
the contractual stated interest rate of LIBOR plus 6.64% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such lower rate.

141

 
 
 
 
 
 
 
 
 
 
 
 
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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2018
(dollars in thousands)

(25)

(26)

(27)

(28)

All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities."  

Investment date represents the date of initial investment in the portfolio company.  

Investment has an unfunded commitment as of December 31, 2018 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments

The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive
priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than
the contractual stated interest rate of LIBOR plus 8.50% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.

142

 
 
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MAIN STREET CAPITAL CORPORATION 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

NOTE A — ORGANIZATION AND BASIS OF PRESENTATION

1.    Organization

       Main Street Capital Corporation ("MSCC") is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market
("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made
to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to
partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its
consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in
secured debt investments of Middle Market companies generally headquartered in the United States.

       MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended
(the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street
Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business
Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and other
employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with
employing investment and portfolio management professionals.

       MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and
other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receives fee income for such services. MSCC has been
granted no-action relief by the Securities and Exchange Commission ("SEC") to allow the External Investment Manager to register as a registered investment adviser under the
Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted
for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

       MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of
1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it
distributes to its stockholders.

       MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable
Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes.

       Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries,
which include the Funds and the Taxable Subsidiaries.

2.    Basis of Presentation

       Main Street's consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP").
The Company is an investment company following accounting and reporting guidance in Financial Accounting Standards Board ("FASB")

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Accounting Standards Codification ("ASC") 946, Financial Services — Investment Companies ("ASC 946"). For each of the periods presented herein, Main Street's
consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of Main Street's
investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments and the
investment in the External Investment Manager (see "Note C — Fair Value Hierarchy for Investments and Debentures — Portfolio Composition — Investment Portfolio
Composition" for additional discussion of Main Street's Investment Portfolio and definitions for the terms Private Loan and Other Portfolio). Main Street's results of operations
and cash flows for the years ended December 31, 2019, 2018 and 2017 and financial position as of December 31, 2019 and 2018, are presented on a consolidated basis. The
effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation. Certain reclassifications have been made
to prior period balances to conform with the current presentation.

       Under ASC 946, Main Street is precluded from consolidating other entities in which Main Street has equity investments, including those in which it has a controlling
interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if Main Street holds a controlling interest in an
operating company that provides all or substantially all of its services directly to Main Street or to its portfolio companies. Accordingly, as noted above, MSCC's consolidated
financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. Main Street has determined that all of its portfolio
investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, Main Street's Investment Portfolio is carried on the
consolidated balance sheet at fair value, as discussed further in Note B.1., with any adjustments to fair value recognized as "Net Unrealized Appreciation (Depreciation)" on the
consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net Realized Gain (Loss)."

Portfolio Investment Classification

       Main Street classifies its Investment Portfolio in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) "Control Investments" are defined as
investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) "Affiliate
Investments" are defined as investments in which Main Street owns between 5% and 25% (inclusive) of the voting securities and does not have rights to maintain greater than
50% of the board representation, and (c) "Non-Control/Non-Affiliate Investments" are defined as investments that are neither Control Investments nor Affiliate Investments.

NOTE B — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

1.    Valuation of the Investment Portfolio

       Main Street accounts for its Investment Portfolio at fair value. As a result, Main Street follows the provisions of ASC 820, Fair Value Measurements and Disclosures
("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair
value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in the principal
market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are
independent, knowledgeable and willing and able to transact.

       Main Street's portfolio strategy calls for it to invest primarily in illiquid debt and equity securities issued by privately held, LMM companies and more liquid debt securities
issued by Middle Market companies that

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are generally larger in size than the LMM companies. Main Street categorizes some of its investments in LMM companies and Middle Market companies as Private Loan
portfolio investments, which are primarily debt securities in privately held companies that have been originated through strategic relationships with other investment funds on a
collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to
investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street's portfolio also includes Other Portfolio investments which primarily consist of
investments that are not consistent with the typical profiles for its LMM portfolio investments, Middle Market portfolio investments or Private Loan portfolio investments,
including investments which may be managed by third parties. Main Street's portfolio investments may be subject to restrictions on resale.

       LMM investments and Other Portfolio investments generally have no established trading market while Middle Market securities generally have established markets that are
not active. Private Loan investments may include investments which have no established trading market or have established markets that are not active. Main Street determines
in good faith the fair value of its Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by its Board of Directors
and in accordance with the 1940 Act. Main Street's valuation policies and processes are intended to provide a consistent basis for determining the fair value of Main Street's
Investment Portfolio.

       For LMM portfolio investments, Main Street generally reviews external events, including private mergers, sales and acquisitions involving comparable companies, and
includes these events in the valuation process by using an enterprise value waterfall methodology ("Waterfall") for its LMM equity investments and an income approach using a
yield-to-maturity model ("Yield-to-Maturity") for its LMM debt investments. For Middle Market portfolio investments, Main Street primarily uses quoted prices in the
valuation process. Main Street determines the appropriateness of the use of third-party broker quotes, if any, in determining fair value based on its understanding of the level of
actual transactions used by the broker to develop the quote and whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes and the
correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. For Middle Market and Private Loan portfolio
investments in debt securities for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates
the fair value based on the assumptions that it believes hypothetical market participants would use to value the investment in a current hypothetical sale using the Yield-to-
Maturity valuation method. For its Other Portfolio equity investments, Main Street generally calculates the fair value of the investment primarily based on the net asset value
("NAV") of the fund and adjusts the fair value for other factors deemed relevant that would affect the fair value of the investment. All of the valuation approaches for Main
Street's portfolio investments estimate the value of the investment as if Main Street were to sell, or exit, the investment as of the measurement date.

       These valuation approaches consider the value associated with Main Street's ability to control the capital structure of the portfolio company, as well as the timing of a
potential exit. For valuation purposes, "control" portfolio investments are composed of debt and equity securities in companies for which Main Street has a controlling interest
in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company's board of directors. For valuation purposes, "non-control"
portfolio investments are generally composed of debt and equity securities in companies for which Main Street does not have a controlling interest in the equity ownership of
the portfolio company or the ability to nominate a majority of the portfolio company's board of directors.

       Under the Waterfall valuation method, Main Street estimates the enterprise value of a portfolio company using a combination of market and income approaches or other
appropriate valuation methods, such as considering recent transactions in the equity securities of the portfolio company or third-party valuations of

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the portfolio company, and then performs a waterfall calculation by allocating the enterprise value over the portfolio company's securities in order of their preference relative to
one another. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation
sale. Typically, privately held companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"), cash flows, net
income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally
described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes
various factors including the portfolio company's historical and projected financial results. Due to SEC deadlines for Main Street's quarterly and annual financial reporting, the
operating results of a portfolio company used in the current period valuation are generally the results from the period ended three months prior to such valuation date and may
include unaudited, projected, budgeted or pro forma financial information and may require adjustments for non-recurring items or to normalize the operating results that may
require significant judgment in determining. In addition, projecting future financial results requires significant judgment regarding future growth assumptions. In evaluating the
operating results, Main Street also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value,
Main Street allocates the enterprise value to investments in order of the legal priority of the various components of the portfolio company's capital structure. In applying the
Waterfall valuation method, Main Street assumes the loans are paid off at the principal amount in a change in control transaction and are not assumed by the buyer, which Main
Street believes is consistent with its past transaction history and standard industry practices.

       Under the Yield-to-Maturity valuation method, Main Street also uses the income approach to determine the fair value of debt securities based on projections of the
discounted future free cash flows that the debt security will likely generate, including analyzing the discounted cash flows of interest and principal amounts for the debt security,
as set forth in the associated loan agreements, as well as the financial position and credit risk of the portfolio company. Main Street's estimate of the expected repayment date of
its debt securities is generally the maturity date of the instrument, as Main Street generally intends to hold its loans and debt securities to maturity. The Yield-to-Maturity
analysis also considers changes in leverage levels, credit quality, portfolio company performance and other factors. Main Street will generally use the value determined by the
Yield-to-Maturity analysis as the fair value for that security; however, because of Main Street's general intent to hold its loans to maturity, the fair value will not exceed the
principal amount of the debt security valued using the Yield-to-Maturity valuation method. A change in the assumptions that Main Street uses to estimate the fair value of its
debt securities using the Yield-to-Maturity valuation method could have a material impact on the determination of fair value. If there is deterioration in credit quality or if a debt
security is in workout status, Main Street may consider other factors in determining the fair value of the debt security, including the value attributable to the debt security from
the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis.

       Under the NAV valuation method, for an investment in an investment fund that does not have a readily determinable fair value, Main Street measures the fair value of the
investment predominately based on the NAV of the investment fund as of the measurement date and adjusts the investment's fair value for factors known to Main Street that
would affect that fund's NAV, including, but not limited to, fair values for individual investments held by the fund if Main Street holds the same investment or for a publicly
traded investment. In addition, in determining the fair value of the investment, Main Street considers whether adjustments to the NAV are necessary in certain circumstances,
based on the analysis of any restrictions on redemption of Main Street's investment as of the measurement date, recent actual sales or redemptions of interests in the investment
fund, and expected future cash flows available to equity holders, including the rate of return on those cash flows compared to an implied market return on equity required by
market

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participants, or other uncertainties surrounding Main Street's ability to realize the full NAV of its interests in the investment fund.

       Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each of its portfolio investments quarterly.
In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its LMM portfolio companies, Main Street, among other things, consults
with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides
observations, recommendations and an assurance certification regarding the Company's determinations of the fair value of its LMM portfolio company investments. The
nationally recognized independent financial advisory services firm is generally consulted relative to Main Street's investments in each LMM portfolio company at least once
every calendar year, and for Main Street's investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In
certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized
independent financial advisory services firm on its investments in one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the
fair value of Main Street's investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and
received an assurance certification from its independent financial advisory services firm in arriving at Main Street's determination of fair value on its investments in a total of 57
LMM portfolio companies for the year ended December 31, 2019, representing approximately 94% of the total LMM portfolio at fair value as of December 31, 2019, and on a
total of 54 LMM portfolio companies for the year ended December 31, 2018, representing approximately 87% of the total LMM portfolio at fair value as of December 31, 2018.
Excluding its investments in LMM portfolio companies that, as of December 31, 2019 and 2018, as applicable, had not been in the Investment Portfolio for at least twelve
months subsequent to the initial investment or whose primary purpose is to own real estate for which a third-party appraisal is obtained on at least an annual basis, the
percentage of the LMM portfolio reviewed and certified by its independent financial advisory services firm for the years ended December 31, 2019 and 2018 was 99% and 98%
of the total LMM portfolio at fair value as of December 31, 2019 and 2018, respectively.

       For valuation purposes, all of Main Street's Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to
determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. For
Middle Market portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally
estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Middle Market debt investments in a current
hypothetical sale using the Yield-to-Maturity valuation method and such Middle Market equity investments in a current hypothetical sale using the Waterfall valuation method.
Because the vast majority of the Middle Market portfolio investments are typically valued using third-party quotes or other independent pricing services (including 91% and
94% of the Middle Market portfolio investments as of December 31, 2019 and 2018, respectively), Main Street generally does not consult with any financial advisory services
firms in connection with determining the fair value of its Middle Market investments.

       For valuation purposes, all of Main Street's Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has
determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it
believes hypothetical market participants would use to value such Private Loan debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and
such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method.

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       In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other
things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and
provides observations and recommendations and an assurance certification regarding the Company's determinations of the fair value of its Private Loan portfolio company
investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street's investments in each Private Loan portfolio
company at least once every calendar year, and for Main Street's investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to
the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the
nationally recognized independent financial advisory services firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not
limited to, situations where the fair value of Main Street's investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment
Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at its determination of fair value
on its investments in a total of 37 Private Loan portfolio companies for the year ended December 31, 2019, representing approximately 62% of the total Private Loan portfolio at
fair value as of December 31, 2019, and on a total of 27 Private Loan portfolio companies for the year ended December 31, 2018, representing approximately 57% of the total
Private Loan portfolio at fair value as of December 31, 2018. Excluding its investments in Private Loan portfolio companies that, as of December 31, 2019 and 2018, as
applicable, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment and its investments in Private Loan portfolio companies that
were not reviewed because the investment is valued based upon third-party quotes or other independent pricing, the percentage of the Private Loan portfolio reviewed and
certified by its independent financial advisory services firm for the years ended December 31, 2019 and 2018 was 94% and 91% of the total Private Loan portfolio at fair value
as of December 31, 2019 and 2018, respectively.

       For valuation purposes, all of Main Street's Other Portfolio investments are non-control investments. Main Street's Other Portfolio investments comprised 4.1% and 4.4% of
Main Street's Investment Portfolio at fair value as of December 31, 2019 and 2018, respectively. Similar to the LMM investment portfolio, market quotations for Other Portfolio
equity investments are generally not readily available. For its Other Portfolio equity investments, Main Street generally determines the fair value of these investments using the
NAV valuation method.

       For valuation purposes, Main Street's investment in the External Investment Manager is a control investment. Market quotations are not readily available for this
investment, and as a result, Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach. In
estimating the enterprise value, Main Street analyzes various factors, including the entity's historical and projected financial results, as well as its size, marketability and
performance relative to the population of market comparables. This valuation approach estimates the value of the investment as if Main Street were to sell, or exit, the
investment. In addition, Main Street considers its ability to control the capital structure of the company, as well as the timing of a potential exit, in connection with determining
the fair value of the External Investment Manager.

       Due to the inherent uncertainty in the valuation process, Main Street's determination of fair value for its Investment Portfolio may differ materially from the values that
would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that
may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently
assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       Main Street uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment
valuation procedures for its LMM portfolio companies. This system takes into account both quantitative and qualitative factors of the LMM portfolio company and the
investments held therein.

       The Board of Directors of Main Street has the final responsibility for overseeing, reviewing and approving, in good faith, Main Street's determination of the fair value for its
Investment Portfolio, as well as its valuation procedures, consistent with 1940 Act requirements. Main Street believes its Investment Portfolio as of December 31, 2019 and
2018 approximates fair value as of those dates based on the markets in which Main Street operates and other conditions in existence on those reporting dates.

2.    Use of Estimates

       The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets
and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period.
Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained in Note B.1., the consolidated financial statements include
investments in the Investment Portfolio whose values have been estimated by Main Street with the oversight, review and approval by Main Street's Board of Directors in the
absence of readily ascertainable market values. Because of the inherent uncertainty of the Investment Portfolio valuations, those estimated values may differ materially from the
values that would have been determined had a ready market for the securities existed.

3.    Cash and Cash Equivalents

       Cash and cash equivalents consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents
are carried at cost, which approximates fair value.

       At December 31, 2019, cash balances totaling $51.2 million exceeded Federal Deposit Insurance Corporation insurance protection levels, subjecting the Company to risk
related to the uninsured balance. All of the Company's cash deposits are held at large established high credit quality financial institutions and management believes that the risk
of loss associated with any uninsured balances is remote.

4.    Interest, Dividend and Fee Income

       Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are
declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with Main Street's valuation policies,
Main Street evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street
otherwise does not expect the debtor to be able to service all of its debt or other obligations, Main Street will generally place the loan or debt security on non-accrual status and
cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt
security's status significantly improves regarding the debtor's ability to service the debt or other obligations, or if a loan or debt security is sold or written-off, Main Street
removes it from non-accrual status.

       As of December 31, 2019, Main Street's total Investment Portfolio had eight investments on non-accrual status, which comprised approximately 1.4% of its fair value and
4.8% of its cost. As of December 31, 2018,

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Main Street's total Investment Portfolio had six investments on non-accrual status, which comprised approximately 1.3% of its fair value and 3.9% of its cost.

       Main Street holds certain debt and preferred equity instruments in its Investment Portfolio that contain payment-in-kind ("PIK") interest and cumulative dividend
provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as
interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income,
and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as
the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to
stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash. Main Street stops accruing PIK
interest and cumulative dividends and writes off any accrued and uncollected interest and dividends in arrears when it determines that such PIK interest and dividends in arrears
are no longer collectible. For the years ended December 31, 2019, 2018 and 2017, (i) approximately 2.0%, 1.0% and 2.4%, respectively, of Main Street's total investment
income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.0%, 1.0% and 1.6%, respectively, of Main Street's total investment income
was attributable to cumulative dividend income not paid currently in cash.

       Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies or other third parties. For services that are separately
identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes.
Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into
income over the life of the financing.

       A presentation of total investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows:

Twelve Months Ended December 31,
2018
2017
2019
(dollars in thousands)

Interest, fee and dividend income:

Interest income
Dividend income
Fee income

Total interest, fee and dividend income

5.    Deferred Financing Costs

  $ 187,381  $ 177,103  $ 161,934 
34,704 
9,103 
  $ 243,373  $ 233,355  $ 205,741 

49,782 
6,210 

46,471 
9,781 

       Deferred financing costs include commitment fees and other costs related to Main Street's multi-year revolving credit facility (the "Credit Facility") and its unsecured notes,
as well as the commitment fees and leverage fees (approximately 3.4% of the total commitment and draw amounts, as applicable) on the SBIC debentures which are not
accounted for under the fair value option under ASC 825 (as discussed further in Note B.11.). See further discussion of Main Street's debt in Note E. Deferred financing costs in
connection with the Credit Facility are capitalized as an asset. Deferred financing costs in connection with all other debt arrangements not using the fair value option are a direct
deduction from the related debt liability.

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6.    Equity Offering Costs

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       The Company's offering costs are charged against the proceeds from equity offerings when the proceeds are received.

7.    Unearned Income — Debt Origination Fees and Original Issue Discount and Discounts/Premiums to Par Value

       Main Street capitalizes debt origination fees received in connection with financings and reflects such fees as unearned income netted against the applicable debt
investments. The unearned income from the fees is accreted into income based on the effective interest method over the life of the financing.

       In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants or warrants with an exercise price below the fair value of the
underlying equity (together, "nominal cost equity") that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal
cost equity, Main Street allocates its cost basis in its investment between its debt security and its nominal cost equity at the time of origination based on amounts negotiated
with the particular portfolio company. The allocated amounts are based upon the fair value of the nominal cost equity, which is then used to determine the allocation of cost to
the debt security. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the applicable debt
investment, and accreted into interest income based on the effective interest method over the life of the debt investment. The actual collection of this interest is deferred until the
time of debt principal repayment.

       Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. In the case of a purchase at a discount, Main Street records
the investment at the par value of the debt security net of the discount, and the discount is accreted into interest income based on the effective interest method over the life of the
debt investment. In the case of a purchase at a premium, Main Street records the investment at the par value of the debt security plus the premium, and the premium is amortized
as a reduction to interest income based on the effective interest method over the life of the debt investment.

       To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions,
even though Main Street may not have collected the interest income. For the years ended December 31, 2019, 2018 and 2017, approximately 2.7%, 3.0% and 3.6%,
respectively, of Main Street's total investment income was attributable to interest income from the accretion of discounts associated with debt investments, net of any premium
reduction.

8.    Share-Based Compensation

       Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation — Stock Compensation. Accordingly,
for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value
of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

       Main Street has also adopted Accounting Standards Update ("ASU") 2016-09, Compensation — Stock Compensation: Improvements to Employee Share-Based Payment
Accounting, which requires that all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) be recognized as income tax
expense or benefit in the income statement and not delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. Accordingly, the tax
effects of exercised or vested awards are treated as discrete items in the reporting period in which they occur. Additionally, Main Street has elected to account for forfeitures as
they occur.

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9.    Income Taxes

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its
subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes
on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable
income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-
exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4%
non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are
declared on or prior to the later of (i) the filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close
of the year in which such taxable income was generated.

       The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio
companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-of-income" requirements contained in the RIC tax provisions of the
Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries
are included in Main Street's consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for
income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable
income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The
Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and
liabilities, of the Taxable Subsidiaries are reflected in Main Street's consolidated financial statements.

       The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The
External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio
investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements, and as a result of the tax sharing agreement with
its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on
its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and
liabilities, of the External Investment Manager are reflected in the External Investment Manager's separate financial statements.

       In December 2017, the "Tax Cuts and Jobs Act" legislation was enacted. The Tax Cuts and Jobs Act included significant changes to the U.S. corporate tax system, including
a U.S. federal corporate income tax rate reduction from 35% to 21% and other changes. ASC 740, Income Taxes, requires the effects of changes in tax rates and laws on
deferred tax balances to be recognized in the period in which the legislation was enacted. As such, Main Street has accounted for the tax effects as a result of the enactment of
the Tax Cuts and Jobs Act beginning with the period ended December 31, 2017.

       The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for
temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax

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rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is
more likely than not that some portion or all of the deferred tax asset will not be realized.

       Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses.
Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized. The
Company's stockholders' equity includes an adjustment to classification as a result of permanent book-to-tax differences, which include differences in the book and tax
treatment of income and expenses.

10.  Net Realized Gains or Losses and Net Unrealized Appreciation or Depreciation

       Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment or a financial instrument and the cost basis
of the investment or financial instrument, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period
net of recoveries and realized gains or losses from in-kind redemptions. Net unrealized appreciation or depreciation reflects the net change in the fair value of the Investment
Portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments and financial instruments to realized
gains or losses.

11.  Fair Value of Financial Instruments

       Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of
significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash
equivalents, receivables, payables and other liabilities approximate the fair values of such items due to the short-term nature of these instruments.

       As part of Main Street's acquisition of the majority of the equity interests of MSC II in January 2010 (the "MSC II Acquisition"), Main Street elected the fair value option
under ASC 825, Financial Instruments ("ASC 825"), relating to accounting for debt obligations at their fair value, for the MSC II SBIC debentures acquired as part of the
acquisition accounting related to the MSC II Acquisition and values those obligations as discussed further in Note C. In order to provide for a more consistent basis of
presentation, Main Street has continued to elect the fair value option for SBIC debentures issued by MSC II subsequent to the MSC II Acquisition. When the fair value option is
elected for a given SBIC debenture, the deferred loan costs associated with the debenture are fully expensed in the current period to "Net Unrealized Appreciation
(Depreciation) — SBIC debentures" as part of the fair value adjustment. Interest incurred in connection with SBIC debentures which are valued at fair value is included in
interest expense.

12.  Earnings per Share

       Basic and diluted per share calculations are computed utilizing the weighted-average number of shares of common stock outstanding for the period. In accordance with
ASC 260, Earnings Per Share, the unvested shares of restricted stock awarded pursuant to Main Street's equity compensation plans are participating securities and, therefore,
are included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per
share amounts.

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13.  Recently Issued or Adopted Accounting Standards

       In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under
ASC 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the guidance is that an entity should
recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in
exchange for those goods or services. Under the guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the
performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize
revenue when (or as) the entity satisfies a performance obligation. The guidance significantly enhances comparability of revenue recognition practices across entities, industries,
jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In
March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus
Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with
Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing
arrangements. In May 2016, the FASB issued ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical
Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. In December 2016, the
FASB issued ASU No. 2016-20, Revenue from Contracts with Customers (Topic 606) — Technical Corrections and Improvements, which provided disclosure relief, and
clarified the scope and application of the new revenue standard and related cost guidance. The guidance was effective for the annual reporting period beginning after
December 15, 2017, including interim periods within that reporting period. Substantially all of Main Street's income is outside the scope of ASU 2014-09. For those income
items that are within the scope (primarily fee income), Main Street has similar performance obligations as compared with deliverables and separate units of account previously
identified. As a result, Main Street's timing of its income recognition remains the same and the adoption of the standard did not have a material impact on the consolidated
financial statements.

       In February 2016, the FASB issued ASU 2016-02, Leases, which amended the FASB Accounting Standards Codification and created ASC 842, Leases ("ASC 842"), to
require lessees to recognize on the balance sheet a right-of-use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with
terms greater than 12 months, utilizing a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply.
The guidance in ASC 842 also requires qualitative and quantitative disclosures designed to assess the amount, timing and uncertainty of cash flows arising from leases. Main
Street adopted ASC 842 effective January 1, 2019. Under ASC 842, Main Street evaluates leases to determine if the leases are considered financing or operating leases. Main
Street currently has one operating lease for office space for which it has recorded a right-of-use asset and lease liability for the operating lease obligation. Non-lease components
(maintenance, property tax, insurance and parking) are not included in the lease cost. The lease asset is presented as a single lease cost that is amortized on a straight-line basis
over the life of the lease.

       In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), which is intended to reduce the existing diversity in practice in how certain cash
receipts and cash payments are presented and classified in the statement of cash flows. The guidance was effective for annual periods beginning after December 15, 2017, and
interim periods therein. Main Street adopted ASU 2016-15 effective January 1, 2018. The impact of the adoption of this accounting standard on Main Street's consolidated
financial statements was not material.

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       In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820), which is intended to improve fair value and defined benefit disclosure requirements
by removing disclosures that are not cost beneficial, clarifying disclosures' specific requirements, and adding relevant disclosure requirements. The amendments take effect for
all organizations for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. Main Street elected to early
adopt ASU 2018-13 during the year ended December 31, 2018. No significant changes to the fair value disclosures were necessary in the notes to the consolidated financial
statements in order to comply with ASU 2018-13.

       In August 2018, the SEC adopted rules (the "SEC Release") amending certain disclosure requirements intended to eliminate redundant, duplicative, overlapping, outdated,
or superseded, in light of other SEC disclosure requirements, U.S. GAAP requirements or changes in the information environment. In part, the SEC Release requires an
investment company to present distributable earnings in total on the consolidated balance sheet and consolidated statement of changes in net assets, rather than showing the
three components of distributable earnings as previously shown. Main Street adopted this part of the SEC Release during the year ended December 31, 2018. The impact of the
adoption of these rules on Main Street's consolidated financial statements was not material. Additionally, the SEC Release requires disclosure of changes in net assets within a
registrant's Form 10-Q filing on a quarter-to-date and year-to-date basis for both the current year and prior year comparative periods. Main Street adopted the new requirement
to present changes in net assets in interim financial statements within Form 10-Q filings effective January 1, 2019. The adoption of these rules did not have a material impact on
the consolidated financial statements.

       From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by Main Street as of the specified effective
date. Main Street believes that the impact of recently issued standards and any that are not yet effective will not have a material impact on its consolidated financial statements
upon adoption.

NOTE C — FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES — PORTFOLIO COMPOSITION

       ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value,
and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value.

Fair Value Hierarchy

       In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique into a three-level fair value
hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs
(Level 3).

       Investments recorded on Main Street's balance sheet are categorized based on the inputs to the valuation techniques as follows:

       Level 1 — Investments whose values are based on unadjusted quoted prices for identical assets in an active market that Main Street has the ability to access
(examples include investments in active exchange-traded equity securities and investments in most U.S. government and agency securities).

       Level 2 — Investments whose values are based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly for
substantially the full term of the investment. Level 2 inputs include the following:

•

Quoted prices for similar assets in active markets (for example, investments in restricted stock);

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•

•

•

Quoted prices for identical or similar assets in non-active markets (for example, investments in thinly traded public companies); 

Pricing models whose inputs are observable for substantially the full term of the investment (for example, market interest rate indices); and 

Pricing models whose inputs are derived principally from, or corroborated by, observable market data through correlation or other means for
substantially the full term of the investment.

       Level 3 — Investments whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair
value measurement (for example, investments in illiquid securities issued by privately held companies). These inputs reflect management's own assumptions about the
assumptions a market participant would use in pricing the investment.

       As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is
categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs
that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, unrealized appreciation and depreciation related to such investments categorized within the Level 3
tables below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3).

       As of December 31, 2019 and 2018, all of Main Street's LMM portfolio investments consisted of illiquid securities issued by privately held companies. As a result, the fair
value determination for all of Main Street's LMM portfolio investments primarily consisted of unobservable inputs. As a result, all of Main Street's LMM portfolio investments
were categorized as Level 3 as of December 31, 2019 and 2018

       As of December 31, 2019 and 2018, Main Street's Middle Market portfolio investments consisted primarily of investments in secured and unsecured debt investments and
independently rated debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which
sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street's Middle Market portfolio
investments were categorized as Level 3 as of December 31, 2019 and 2018.

       As of December 31, 2019 and 2018, Main Street's Private Loan portfolio investments primarily consisted of investments in interest-bearing secured debt investments. The
fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to
determine the fair value of these investments and unobservable inputs. As a result, all of Main Street's Private Loan portfolio investments were categorized as Level 3 as of
December 31, 2019 and 2018.

       As of December 31, 2019 and 2018, Main Street's Other Portfolio investments consisted of illiquid securities issued by privately held companies. The fair value
determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street's Other Portfolio investments were categorized as Level 3 as of
December 31, 2019 and 2018.

       The fair value determination of each portfolio investment categorized as Level 3 required one or more of the following unobservable inputs:

•

•

Financial information obtained from each portfolio company, including unaudited statements of operations and balance sheets for the most recent period
available as compared to budgeted numbers; 

Current and projected financial condition of the portfolio company;

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Current and projected ability of the portfolio company to service its debt obligations; 

Type and amount of collateral, if any, underlying the investment; 

Current financial ratios (e.g., fixed charge coverage ratio, interest coverage ratio and net debt/EBITDA ratio) applicable to the investment; 

Current liquidity of the investment and related financial ratios (e.g., current ratio and quick ratio); 

Pending debt or capital restructuring of the portfolio company; 

Projected operating results of the portfolio company; 

Current information regarding any offers to purchase the investment; 

Current ability of the portfolio company to raise any additional financing as needed; 

Changes in the economic environment which may have a material impact on the operating results of the portfolio company; 

Internal occurrences that may have an impact (both positive and negative) on the operating performance of the portfolio company; 

Qualitative assessment of key management; 

Contractual rights, obligations or restrictions associated with the investment; and 

Other factors deemed relevant.

•

•

•

•

•

•

•

•

•

•

•

•

•

       The use of significant unobservable inputs creates uncertainty in the measurement of fair value as of the reporting date. The significant unobservable inputs used in the fair
value measurement of Main Street's LMM equity securities, which are generally valued through an average of the discounted cash flow technique and the market
comparable/enterprise value technique (unless one of these approaches is determined to not be appropriate), are (i) EBITDA multiples and (ii) the weighted-average cost of
capital ("WACC"). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the
contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable
inputs used in the fair value measurement of Main Street's LMM, Middle Market and Private Loan securities are (i) risk adjusted discount rates used in the Yield-to-Maturity
valuation technique (see "Note B.1. — Valuation of the Investment Portfolio") and (ii) the percentage of expected principal recovery. Significant increases (decreases) in any of
these discount rates in isolation would result in a significantly lower (higher) fair value measurement. Significant increases (decreases) in any of these expected principal
recovery percentages in isolation would result in a significantly higher (lower) fair value measurement. However, due to the nature of certain investments, fair value
measurements may be based on other criteria, such as third-party appraisals of collateral and fair values as determined by independent third parties, which are not presented in
the tables below.

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       The following tables provide a summary of the significant unobservable inputs used to fair value Main Street's Level 3 portfolio investments as of December 31, 2019 and
2018:

Type of Investment
Equity investments

  $

Debt investments

Debt investments
Total Level 3

investments            

$

$

$

Fair Value as of
December 31,
2019
(in thousands)

Valuation Technique

Significant
Unobservable Inputs

819,749  Discounted cash flow
   Market comparable /

  WACC
  EBITDA multiple(1)

Enterprise Value

Range(3)

9.6% - 20.3%  
4.9x - 8.5x(2)

1,212,741

Discounted cash flow

Risk adjusted discount factor
  Expected principal recovery

5.9% - 16.5%(2)
1.4% - 100.0%  

percentage

Weighted
Average(3)

  Median(3)

13.6% 
7.2x 

10.4%
99.3% 

14.2% 
6.4x 

10.0%
100.0% 

569,834

Market approach

Third-party quote

28.1 - 101.0

94.7

98.0

2,602,324 

(1)

(2)

EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment. 

Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 4.5x - 15.0x and the range for risk adjusted discount
factor is 4.6% - 38.0%. 

(3)

Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

Type of Investment
Equity investments

  $

Fair Value as of
December 31,
2018
(in thousands)

Valuation Technique

Significant
Unobservable Inputs

767,156  Discounted cash flow
   Market comparable /

  WACC
  EBITDA multiple(1)

Enterprise Value

Range(3)
9.9% - 20.7%
4.7x - 8.0x(2)

Debt investments

  $

1,039,453  Discounted cash flow

Debt investments
Total Level 3

  $

647,300  Market approach

investments            

$

2,453,909 

  Risk adjusted discount factor 
  Expected principal recovery

8.5% - 17.0%(2)
1.5% - 100.0%  

percentage
  Third-party quote

37.5 - 101.0

Weighted
Average(3)

  Median(3)

13.7% 
7.0x 

12.2% 
99.3% 

96.0 

14.3% 
6.0x 

12.0% 
100.0% 

98.3 

(1)

(2)

(3)

EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment. 

Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 3.9x - 15.0x and the range for risk adjusted discount factor is 5.3% - 30.3%.

Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       The following tables provide a summary of changes in fair value of Main Street's Level 3 portfolio investments for the years ended December 31, 2019 and 2018 (amounts
in thousands):

Type of
Investment
Debt
Equity
Equity Warrant

  $
  $
  $
  $

Fair Value
as of
December 31,
2018
1,686,753  $
755,710  $
11,446  $
2,453,909  $

Transfers
Into
Level 3
Hierarchy

Redemptions/
Repayments

New
Investments

Net
Changes
from
Unrealized
to Realized

Net
Unrealized
Appreciation
(Depreciation)

  Other(1)

—  $
—  $
—  $
—  $

(471,923) $
(24,322) $
1,217  $
(495,028) $

595,285  $
46,046  $
316  $
641,647  $

35,204  $
(15,287) $
(1,090) $
18,827  $

(43,969) $ (18,775) $
26,809  $ 20,582  $
129  $ (1,807) $
—  $

(17,031) $

Fair Value
as of
December 31,
2019
1,782,575 
809,538 
10,211 
2,602,324 

(1)

Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the
consolidated statements of cash flows.

Type of
Investment
Debt
Equity
Equity Warrant

  $

  $

Fair Value
as of
December 31,
2017
1,518,297  $
641,493 
11,515 
2,171,305  $

Transfers
Into
Level 3
Hierarchy

Redemptions/
Repayments

New
Investments

Net
Changes
from
Unrealized
to Realized

Net
Unrealized
Appreciation
(Depreciation)

  Other(1)

—  $
— 
— 
—  $

(653,200) $
(48,585)  
(680)  
(702,465) $

837,162  $
114,639 
181 
951,982  $

38,722  $
(33,971)  
(720)  
4,031  $

(45,778) $ (8,450) $
73,684 
1,150 
29,056  $

8,450 
— 
—  $

Fair Value
as of
December 31,
2018
1,686,753 
755,710 
11,446 
2,453,909 

(1)

Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the
consolidated statements of cash flows.

       As of December 31, 2019 and 2018, the fair value determination for the SBIC debentures recorded at fair value primarily consisted of unobservable inputs. As a result, the
SBIC debentures which are recorded at fair value were categorized as Level 3. Main Street determines the fair value of these instruments primarily using a Yield-to-Maturity
approach that analyzes the discounted cash flows of interest and principal for each SBIC debenture recorded at fair value based on estimated market interest rates for debt
instruments of similar structure, terms, and maturity. Main Street's estimate of the expected repayment date of principal for each SBIC debenture recorded at fair value is the
legal maturity date of the instrument. The significant unobservable inputs used in the fair value measurement of Main Street's SBIC debentures recorded at fair value are the
estimated market interest rates used to fair value each debenture using the yield valuation technique described above. Significant increases (decreases) in the estimated market
interest rates in isolation would result in a significantly lower (higher) fair value measurement.

       The following tables provide a summary of the significant unobservable inputs used to fair value Main Street's Level 3 SBIC debentures as of December 31, 2019 and 2018
(amounts in thousands):

Type of Instrument
SBIC debentures

Fair Value
as of
December 31, 2019

Valuation Technique

  $

21,927 

Discounted cash flow  

Significant
Unobservable Inputs
Estimated market interest rates

Range
  3.2% - 3.5%  

Weighted
Average

3.2%

Type of Instrument
SBIC debentures

Fair Value
as of
December 31, 2018

Valuation Technique

  $

44,688 

Discounted cash flow  

Significant
Unobservable Inputs
Estimated market interest rates

Range
5.5% - 5.8%  

Weighted
Average

5.6%

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       The following tables provide a summary of changes for the Level 3 SBIC debentures recorded at fair value for the years ended December 31, 2019 and 2018 (amounts in
thousands):

Type of Instrument
SBIC debentures at fair value

Fair Value
as of
December 31,
2018

  Repayments

Net Realized
Loss

New SBIC
Debentures

Net
Unrealized
(Appreciation)
Depreciation

Fair Value
as of
December 31,
2019

  $

44,688  $

(24,000) $

5,689  $

—  $

(4,450) $

21,927 

Type of Instrument
SBIC debentures at fair value

Fair Value
as of
December 31,
2017

  Repayments

Net Realized
Loss

New SBIC
Debentures

Net
Unrealized
(Appreciation)
Depreciation

Fair Value
as of
December 31,
2018

  $

48,608  $

(4,000) $

1,374  $

—  $

(1,294) $

44,688 

       At December 31, 2019 and 2018, Main Street's investments and SBIC debentures at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes:

At December 31, 2019
LMM portfolio investments
Middle Market portfolio investments
Private Loan portfolio investments
Other Portfolio investments
External Investment Manager
Total investments
SBIC debentures at fair value

At December 31, 2018
LMM portfolio investments
Middle Market portfolio investments
Private Loan portfolio investments
Other Portfolio investments
External Investment Manager
Total investments
SBIC debentures at fair value

Fair Value Measurements
(in thousands)

Quoted Prices in
Active Markets for
Identical Assets
(Level 1)

Significant Other
Observable Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

—  $
— 
— 
— 
— 
—  $
—  $

—  $ 1,206,865 
522,083 
— 
692,117 
— 
106,739 
— 
— 
74,520 
—  $ 2,602,324 
21,927 
—  $

Fair Value
  $ 1,206,865  $

522,083 
692,117 
106,739 
74,520 

  $ 2,602,324  $
21,927  $
  $

Fair Value Measurements
(in thousands)

Quoted Prices in
Active Markets for
Identical Assets
(Level 1)

Significant Other
Observable Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

—  $
— 
— 
— 
— 
—  $
—  $

—  $ 1,195,035 
576,929 
— 
507,892 
— 
108,305 
— 
— 
65,748 
—  $ 2,453,909 
44,688 
—  $

Fair Value
  $ 1,195,035  $

576,929 
507,892 
108,305 
65,748 

  $ 2,453,909  $
44,688  $
  $

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Investment Portfolio Composition

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       Main Street's LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the
United States. Main Street's LMM portfolio companies generally have annual revenues between $10 million and $150 million, and its LMM investments generally range in size
from $5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, can include
either fixed or floating rate terms and generally have a term of between five and seven years from the original investment date. In most LMM portfolio investments, Main
Street receives nominally priced equity warrants and/or makes direct equity investments in connection with a debt investment.

       Main Street's Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held
companies based in the United States that are generally larger in size than the companies included in Main Street's LMM portfolio. Main Street's Middle Market portfolio
companies generally have annual revenues between $150 million and $1.5 billion, and its Middle Market investments generally range in size from $3 million to $20 million.
Main Street's Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a
term of between three and seven years from the original investment date.

       Main Street's private loan ("Private Loan") portfolio investments are primarily debt securities in privately held companies which have been originated through strategic
relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in
size, structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street's Private Loan portfolio debt investments
are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original
investment date.

       Main Street's other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM, Middle Market
and Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, Main Street may incur indirect fees and expenses
in connection with investments managed by third parties, such as investments in other investment companies or private funds. For Other Portfolio investments, Main Street
generally receives distributions related to the assets held by the portfolio company. Those assets are typically expected to be liquidated over a five to ten year period.

       Main Street's external asset management business is conducted through its External Investment Manager. The External Investment Manager earns management fees based
on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. Main Street entered into an
agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS
Income Fund, Inc. ("HMS Income"). Through this agreement, Main Street shares employees with the External Investment Manager, including their related infrastructure,
business relationships, management expertise and capital raising capabilities. Main Street allocates the related expenses to the External Investment Manager pursuant to the
sharing agreement. Main Street's total expenses for the years ended December 31, 2019, 2018 and 2017 are net of expenses allocated to the External Investment Manager of
$6.7 million, $6.8 million and $6.4 million, respectively.

       Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayments
of debt investments or sales of equity interests. Investment income in any given year could also be highly concentrated among several portfolio

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

companies. For the years ended December 31, 2019, 2018 and 2017, Main Street did not record investment income from any single portfolio company in excess of 10% of total
investment income.

       The following tables provide a summary of Main Street's investments in the LMM, Middle Market and Private Loan portfolios as of December 31, 2019 and 2018 (this
information excludes the Other Portfolio investments and the External Investment Manager which are discussed further below):

Number of portfolio companies
Fair value
Cost
% of portfolio at cost — debt
% of portfolio at cost — equity
% of debt investments at cost secured by first priority lien
Weighted-average annual effective yield(b)
Average EBITDA(c)

LMM(a)

As of December 31, 2019
Middle
Market
(dollars in millions)
69 

Private
Loan

  $ 1,206.9  $
  $ 1,002.2  $

65.9% 
34.1% 
98.1% 
11.8% 

  $

5.1  $

51 
522.1  $
572.3  $

  94.8% 
5.2% 
  91.3% 
8.6% 
85.0  $

65 
692.1 
734.8 
  94.6% 
5.4% 
  95.4% 
9.5% 
57.8 

(a)

(b)

(c)

At December 31, 2019, Main Street had equity ownership in approximately 99% of Main Street's LMM portfolio companies, and the average fully
diluted equity ownership in those portfolio companies was approximately 42%. 

The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2019,
including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt
instruments and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of
Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor. 

The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan
portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, two Middle Market portfolio company
and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's

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investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

Number of portfolio companies
Fair value
Cost
% of portfolio at cost — debt
% of portfolio at cost — equity
% of debt investments at cost secured by first priority lien
Weighted-average annual effective yield(b)
Average EBITDA(c)

LMM(a)

As of December 31, 2018
Middle
Market
(dollars in millions)
69 

Private
Loan

  $ 1,195.0  $
990.9  $
  $
68.7% 
31.3% 
98.5% 
12.3% 

  $

4.7  $

56 
576.9  $
608.8  $

  96.3% 
3.7% 
  87.9% 
9.6% 
99.1  $

59 
507.9 
553.3 
  93.0% 
7.0% 
  92.0% 
  10.4% 
46.1 

(a)

(b)

(c)

At December 31, 2018, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity
ownership in those portfolio companies was approximately 40%. 

The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2018,
including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt
instruments and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of
Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor. 

The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan
portfolios. These calculations exclude certain portfolio companies, including two LMM portfolio companies, one Middle Market portfolio company
and four Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's investments in these portfolio
companies, and those portfolio companies whose primary purpose is to own real estate.

       As of December 31, 2019, Main Street had Other Portfolio investments in eleven companies, collectively totaling approximately $106.7 million in fair value and
approximately $118.4 million in cost basis and which comprised approximately 4.1% of Main Street's Investment Portfolio at fair value. As of December 31, 2018, Main Street
had Other Portfolio investments in eleven companies, collectively totaling approximately $108.3 million in fair value and approximately $116.0 million in cost basis and which
comprised approximately 4.4% of Main Street's Investment Portfolio at fair value.

       As discussed further in Note A.1., Main Street holds an investment in the External Investment Manager, a wholly owned subsidiary that is treated as a portfolio investment.
As of December 31, 2019, there was no cost basis in this investment and the investment had a fair value of approximately $74.5 million, which comprised approximately 2.9%
of Main Street's Investment Portfolio at fair value. As of December 31, 2018, there was no cost basis in this investment and the investment had a fair value of approximately
$65.7 million, which comprised approximately 2.7% of Main Street's Investment Portfolio at fair value.

       The following tables summarize the composition of Main Street's total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan
portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Market portfolio investments and Private Loan portfolio investments, as of December 31, 2019 and 2018 (this information excludes the Other Portfolio investments and the
External Investment Manager).

Cost:
First lien debt
Equity
Second lien debt
Equity warrants
Other

Fair Value:
First lien debt
Equity
Second lien debt
Equity warrants
Other

December 31,
2019

December 31,
2018

78.2% 
17.2% 
3.5% 
0.6% 
0.5% 
100.0% 

77.1% 
16.6% 
5.3% 
0.6% 
0.4% 
100.0% 

December 31,
2019

December 31,
2018

70.1% 
26.0% 
3.0% 
0.4% 
0.5% 
100.0% 

69.0% 
25.5% 
4.6% 
0.5% 
0.4% 
100.0% 

       The following tables summarize the composition of Main Street's total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan
portfolio investments by geographic region of the United States and other countries at cost and fair value as a percentage of the total combined LMM portfolio investments,
Middle Market portfolio investments and Private Loan portfolio investments, as of December 31, 2019 and 2018 (this information excludes the Other Portfolio investments and
the External Investment Manager). The geographic composition is determined by the location of the corporate headquarters of the portfolio company.

Cost:
Southwest
West
Midwest
Northeast
Southeast
Canada
Other Non-United States

December 31,
2019

December 31,
2018

25.0% 
24.6% 
20.6% 
14.8% 
13.2% 
1.2% 
0.6% 
100.0% 

26.7% 
27.2% 
19.4% 
14.3% 
10.0% 
1.4% 
1.0% 
100.0% 

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Fair Value:
Southwest
West
Midwest
Northeast
Southeast
Canada
Other Non-United States

December 31,
2019

December 31,
2018

26.7% 
25.1% 
20.6% 
14.4% 
11.6% 
1.1% 
0.5% 
100.0% 

28.4% 
28.2% 
18.9% 
13.4% 
8.9% 
1.2% 
1.0% 
100.0% 

       Main Street's LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments are in companies conducting business in a variety of
industries. The following tables summarize the composition of Main Street's total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan
portfolio investments by industry at cost and fair value as of

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December 31, 2019 and 2018 (this information excludes the Other Portfolio investments and the External Investment Manager).

Cost:
Machinery
Commercial Services & Supplies
Construction & Engineering
Energy Equipment & Services
Media
Aerospace & Defense
IT Services
Health Care Providers & Services
Internet Software & Services
Diversified Telecommunication Services
Leisure Equipment & Products
Hotels, Restaurants & Leisure
Oil, Gas & Consumable Fuels
Electronic Equipment, Instruments & Components
Specialty Retail
Communications Equipment
Food Products
Professional Services
Software
Computers & Peripherals
Diversified Financial Services
Containers & Packaging
Road & Rail
Building Products
Distributors
Construction Materials
Transportation Infrastructure
Food & Staples Retailing
Chemicals
Internet & Catalog Retail
Other(1)

December 31,
2019

December 31,
2018

7.7% 
6.1% 
5.4% 
5.4% 
5.3% 
4.9% 
4.6% 
4.5% 
4.1% 
3.9% 
3.8% 
3.7% 
3.6% 
3.5% 
3.1% 
3.1% 
3.0% 
2.9% 
2.4% 
2.3% 
1.9% 
1.7% 
1.4% 
1.3% 
1.1% 
1.0% 
1.0% 
1.0% 
1.0% 
0.9% 
4.4% 
100.0% 

6.5% 
4.9% 
7.5% 
6.4% 
6.5% 
3.8% 
3.8% 
2.8% 
4.1% 
4.8% 
3.9% 
3.3% 
3.0% 
3.5% 
4.2% 
2.5% 
3.8% 
2.6% 
2.6% 
2.6% 
0.6% 
1.9% 
1.8% 
1.6% 
1.7% 
1.8% 
0.5% 
0.8% 
0.0% 
1.1% 
5.1% 
100.0% 

(1)

Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market
portfolio investments and Private Loan portfolio investments at each date.

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Fair Value:
Machinery
Construction & Engineering
Commercial Services & Supplies
Energy Equipment & Services
IT Services
Media
Aerospace & Defense
Health Care Providers & Services
Internet Software & Services
Computers & Peripherals
Leisure Equipment & Products
Specialty Retail
Hotels, Restaurants & Leisure
Diversified Telecommunication Services
Oil, Gas & Consumable Fuels
Food Products
Software
Electronic Equipment, Instruments & Components
Communications Equipment
Diversified Consumer Services
Professional Services
Diversified Financial Services
Containers & Packaging
Construction Materials
Road & Rail
Building Products
Distributors
Transportation Infrastructure
Food & Staples Retailing
Other(1)

December 31,
2019

December 31,
2018

9.9% 
5.6% 
5.5% 
4.9% 
4.8% 
4.7% 
4.7% 
4.3% 
3.8% 
3.8% 
3.5% 
3.4% 
3.3% 
3.3% 
3.2% 
2.7% 
2.7% 
2.7% 
2.7% 
2.2% 
2.2% 
2.1% 
1.7% 
1.5% 
1.5% 
1.2% 
1.0% 
1.0% 
1.0% 
5.1% 
100.0% 

8.8% 
7.9% 
4.4% 
5.7% 
3.9% 
5.4% 
3.5% 
2.7% 
3.8% 
3.8% 
3.7% 
4.2% 
3.2% 
4.0% 
2.7% 
3.5% 
2.9% 
2.8% 
2.2% 
2.9% 
2.4% 
0.9% 
1.8% 
2.1% 
1.8% 
1.6% 
1.5% 
0.5% 
0.7% 
4.7% 
100.0% 

(1)

Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market
portfolio investments and Private Loan portfolio investments at each date.

       At December 31, 2019 and 2018, Main Street had no portfolio investment that was greater than 10% of the Investment Portfolio at fair value.

Unconsolidated Significant Subsidiaries

       In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, Main Street must determine which of its unconsolidated controlled portfolio companies, if any, are
considered "significant subsidiaries." In evaluating these unconsolidated controlled portfolio companies, there are three tests utilized to determine if any of Main Street's Control
Investments (as defined in Note A, including those unconsolidated portfolio companies defined as Control Investments in which Main Street does not own greater than 50% of
the voting securities or maintain greater than 50% of the board representation) are considered significant subsidiaries: the

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

investment test, the asset test and the income test. The income test is measured by dividing the absolute value of the combined total of total investment income, net realized gain
(loss) and net unrealized appreciation (depreciation) from each Control Investment for the period being tested by the absolute value of Main Street's pre-tax income for the same
period. Rule 3-09 of Regulation S-X, as interpreted by the SEC, requires Main Street to include separate audited financial statements of an unconsolidated majority-owned
subsidiary (Control Investments in which Main Street owns greater than 50% of the voting securities) in an annual report if any of the three tests exceed 20% of Main Street's
total investments at fair value, total assets or total income, respectively. Rule 4-08(g) of Regulation S-X requires summarized financial information of a Control Investment in
an annual report if any of the three tests exceeds 10% of Main Street's annual total amounts and Rule 10-01(b)(1) of Regulation S-X requires summarized financial information
in a quarterly report if any of the three tests exceeds 20% of Main Street's year-to-date total amounts.

       As of December 31, 2019 and 2018, Main Street had no single investment that represented greater than 10% of its total Investment Portfolio at fair value and no single
investment whose total assets represented greater than 10% of its total assets. After performing the income test for the year ended December 31, 2019 and 2018, Main Street
determined that its income from three of its Control Investments individually generated more than 10% of its total income, primarily due to the unrealized appreciation and
dividend income that was recognized relating to the investments. As such, GJH, GRT and the wholly owned External Investment Manager were each considered significant
subsidiaries at the 10% income level (see further discussion and summarized financial information of the External Investment Manager in Note D). Additionally, after
performing the income test for the year ended December 31, 2017, Main Street determined that its income from one of its Control Investments individually generated more
than 10% of its total income, primarily due to unrealized appreciation that was recognized on the investment. As such, CBT, an unconsolidated portfolio company that was a
Control Investment, but for which Main Street was not the majority owner and did not have rights to maintain greater than 50% of the board representation, was considered a
significant subsidiary at the 10% level as of December 31, 2017.

       The following table shows the summarized financial information for CBT:

As of December 31,
2019
2018
(dollars in thousands)

Balance Sheet Data
Current Assets
Noncurrent Assets
Current Liabilities
Noncurrent Liabilities

Summary of Operations
Total Revenue
Gross Profit
Income from Operations
Net Income

  $

3,581  $

  10,916 
  12,464 
— 

4,025 
  11,372 
  15,103 
— 

Twelve Months Ended
December 31,
2018
(dollars in thousands)

2019

2017

  $ 34,236  $ 39,209  $ 40,802 
  35,837 
  35,160 
9,018 
3,978 
  18,379 
4,868 

  29,788 
1,864 
1,814 

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       The following table shows the summarized financial information for GJH:

Balance Sheet Data
Current Assets
Noncurrent Assets
Current Liabilities
Noncurrent Liabilities

Summary of Operations
Total Revenue
Gross Profit
Income from Operations
Net Income

       The following table shows the summarized financial information for GRT:

Balance Sheet Data
Current Assets
Noncurrent Assets
Current Liabilities
Noncurrent Liabilities

Summary of Operations
Total Revenue
Gross Profit
Income from Operations
Net Income

As of December 31,
2018
2019

  $ 19,936  $ 16,983 
  32,763 
7,711 
  25,239 

  31,945 
8,472 
  24,756 

Twelve Months Ended
December 31,
2018
(dollars in thousands)

2019

2017

  $ 58,863  $ 53,998  $ 42,429 
  17,067 
  21,702 
3,149 
6,478 
(486)
2,648 

  23,430 
7,005 
5,552 

As of December 31,
2019
2018
(dollars in thousands)

  $ 10,256  $
  20,921 
6,713 
  22,412 

8,399 
  24,242 
2,870 
  14,445 

Twelve Months Ended
December 31,
2018
(dollars in thousands)

2019

2017

  $ 39,908  $ 37,821  $ 31,165 
6,737 
2,329 
(103)

  11,064 
6,404 
3,128 

9,526 
4,934 
2,470 

NOTE D — EXTERNAL INVESTMENT MANAGER

       As discussed further in Note A.1., the External Investment Manager provides investment management and other services to External Parties. The External Investment
Manager is accounted for as a portfolio investment of MSCC since the External Investment Manager conducts all of its investment management activities for External Parties.

       During May 2012, Main Street entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS
Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required

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no-action relief from the SEC to allow it to own a registered investment adviser, Main Street assigned the sub-advisory agreement to the External Investment Manager since the
fees received from such arrangement could otherwise have negative consequences on MSCC's ability to meet the source-of-income requirement necessary for it to maintain its
RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned
by HMS Adviser under its advisory agreement with HMS Income. The External Investment Manager agreed to waive the historical incentive fees otherwise earned through
December 31, 2018. During the years ended December 31, 2019, 2018 and 2017, the External Investment Manager earned $13.1 million, $11.6 million and $10.9 million,
respectively, in fee income, which consisted of $11.1 million of base management fees and $2.0 million in incentive fees in 2019 compared to $11.6 million and $10.9 million of
base management fees for the comparable period in 2018 and 2017, respectively, under the sub-advisory agreement with HMS Adviser.

       The investment in the External Investment Manager is accounted for using fair value accounting, with the fair value determined by Main Street and approved, in good faith,
by Main Street's Board of Directors. Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach
(see further discussion in Note B.1.). Any change in fair value of the investment in the External Investment Manager is recognized on Main Street's consolidated statements of
operations in "Net Unrealized Appreciation (Depreciation) — Control investments."

       The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The
External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio
investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements, and as a result of the tax sharing agreement with
its Taxable Subsidiary owner, for financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable
income and, as a result of its activities, may generate income tax expense or benefit. Main Street owns the External Investment Manager through the Taxable Subsidiary to
allow MSCC to continue to comply with the "source-of-income" requirements contained in the RIC tax provisions of the Code. The taxable income, or loss, of the External
Investment Manager may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. As a result of the above described
financial reporting and tax treatment, the External Investment Manager provides for any income tax expense, or benefit, and any tax assets or liabilities in its separate financial
statements.

       Main Street shares employees with the External Investment Manager and allocates costs related to such shared employees to the External Investment Manager generally
based on a combination of the direct time spent, new investment origination activity and assets under management, depending on the nature of the expense. For the years ended
December 31, 2019, 2018 and 2017, Main Street allocated $6.7 million, $6.8 million and $6.4 million of total expenses, respectively, to the External Investment Manager. The
total contribution of the External Investment Manager to Main Street's net investment income consists of the combination of the expenses allocated to the External Investment
Manager and the dividend income received from the External Investment Manager. For the years ended December 31, 2019, 2018 and 2017, the total contribution to Main
Street's net investment income was $11.7 million, $10.6 million and $9.4 million, respectively.

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       Summarized financial information from the separate financial statements of the External Investment Manager as of December 31, 2019 and 2018 and for the years ended
December 31, 2019, 2018 and 2017 is as follows:

Management fee income
Incentive fees

Total revenues

Expenses allocated from MSCC or its subsidiaries:

Salaries, share-based compensation and other personnel costs
Other G&A expenses

Total allocated expenses

Pre-tax income
Tax expense
Net income

2019

Twelve Months Ended
December 31,
2018
(dollars in thousands)
  $ 11,116  $ 11,592  $ 10,946 
— 
  10,946 

— 
  11,592 

1,972 
  13,088 

2017

(4,388)  
(2,284)  
(6,672)  
6,416 
(1,427)  
4,989  $

(4,324)  
(2,444)  
(6,768)  
4,824 
(1,002)  
3,822  $

(3,989)
(2,381)
(6,370)
4,576 
(1,544)
3,032 

  $

Cash
Accounts receivable — HMS Income

Total assets

Accounts payable to MSCC and its subsidiaries
Dividend payable to MSCC and its subsidiaries
Equity

Total liabilities and equity

  $

  $
  $

  $

NOTE E — DEBT

SBIC Debentures

As of
December 31,
2018

As of
December 31,
2019
(dollars in thousands)
—  $

2,708 
2,708  $
1,592  $
1,116 
— 
2,708  $

— 
2,947 
2,947 
1,786 
1,161 
— 
2,947 

       Under existing SBIC regulations, SBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum
amount of $350.0 million. Main Street, through the Funds, has an effective maximum amount of $347.0 million as a result of certain voluntary prepayments of SBIC
debentures under historical commitments from the SBA. SBIC debentures payable were $311.8 million and $345.8 million at December 31, 2019 and 2018, respectively. SBIC
debentures provide for interest to be paid semiannually, with principal due at the applicable 10-year maturity date of each debenture. During the year ended December 31, 2019,
Main Street received a $25.0 million commitment from the SBA in order to issue new SBIC debentures in the future and opportunistically prepaid $34.0 million of existing
SBIC debentures that were scheduled to mature over the next year as part of an effort to manage the maturity dates of the oldest SBIC debentures. As a result of this
prepayment, Main Street recognized a realized loss of $5.7 million due primarily to the previously recognized gain recorded as a result of recording the MSC II

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debentures at fair value on the date of the acquisition of the majority interests of MSC II. The effect of the realized loss is substantially offset by the reversal of all previously
recognized unrealized depreciation due to fair value adjustments since the date of the acquisition. Main Street expects to issue new SBIC debentures under the SBIC program in
the future in an amount up to the regulatory maximum amount for affiliated SBIC funds. The weighted-average annual interest rate on the SBIC debentures was 3.6% and 3.7%
as of December 31, 2019 and 2018, respectively. The first principal maturity due under the existing SBIC debentures is in 2020, and the weighted-average remaining duration as
of December 31, 2019 was approximately 5.1 years. For the years ended December 31, 2019, 2018 and 2017, Main Street recognized interest expense, including the
amortization of upfront leverage and other miscellaneous fees, attributable to the SBIC debentures of $12.7 million, $12.8 million and $10.5 million, respectively. In accordance
with SBIC regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA.

       As of December 31, 2019, the recorded value of the SBIC debentures was $306.2 million which consisted of (i) $21.9 million recorded at fair value, or $0.1 million less
than the $22.0 million par value of the SBIC debentures issued by MSC II, (ii) $139.8 million par value of SBIC debentures outstanding issued by MSMF, with a recorded value
of $138.5 million that was net of unamortized debt issuance costs of $1.3 million and (iii) $150.0 million par value of SBIC debentures issued by MSC III with a recorded value
of $145.7 million that was net of unamortized debt issuance costs of $4.3 million. As of December 31, 2019, if Main Street had adopted the fair value option under ASC 825 for
all of its SBIC debentures, Main Street estimates the fair value of its SBIC debentures would be approximately $310.2 million, or $1.6 million less than the $311.8 million face
value of the SBIC debentures.

       The maturity dates and fixed interest rates for Main Street's SBIC Debentures as of December 31, 2019 and 2018 are summarized in the following table:

Maturity Date
9/1/2019
3/1/2020
9/1/2020
9/1/2020
3/1/2021
3/1/2021
9/1/2021
9/1/2022
3/1/2023
3/1/2024
3/1/2024
3/1/2027
9/1/2027
3/1/2028
9/1/2028
Ending Balance

Fixed
Interest
Rate

December 31,
2019

— 
4.95% 
4.51% 
— 
3.50%  35,000,000 
3.93% 
2,000,000 
4.37%  10,000,000 
4.60%  20,000,000 
3.39%  10,000,000 
2.53% 
5,000,000 
3.16%  16,000,000 
3.95%  39,000,000 
3.55%  24,800,000 
3.52%  40,400,000 
3.19%  34,600,000 
3.41%  43,000,000 
3.55%  32,000,000 
  311,800,000 

December 31,
2018
  16,000,000 
  10,000,000 
  35,000,000 
  10,000,000 
  10,000,000 
  20,000,000 
  10,000,000 
5,000,000 
  16,000,000 
  39,000,000 
  24,800,000 
  40,400,000 
  34,600,000 
  43,000,000 
  32,000,000 
  345,800,000 

Credit Facility

       Main Street maintains the Credit Facility to provide additional liquidity to support its investment and operational activities. The Credit Facility includes total commitments
of $705.0 million from a diversified

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

group of 17 lenders. The Credit Facility matures in September 2023 and contains an accordion feature which allows Main Street to increase the total commitments under the
facility to up to $800.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

       Borrowings under the Credit Facility bear interest, subject to Main Street's election and resetting on a monthly basis on the first of each month, on a per annum basis at a
rate equal to the applicable LIBOR rate (1.8% as of December 31, 2019) plus (i) 1.875% (or the applicable base rate (Prime Rate of 4.75% as of December 31, 2019) plus
0.875%) as long as Main Street meets certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) otherwise.
Main Street pays unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the
assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. The Credit Facility contains certain
affirmative and negative covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base, (ii) maintaining an interest
coverage ratio of at least 2.0 to 1.0, (iii) maintaining an asset coverage ratio (tangible net worth to Credit Facility borrowings) of at least 1.5 to 1.0 and (iv) maintaining a
minimum tangible net worth. The Credit Facility is provided on a revolving basis through its final maturity date in September 2023, and contains two, one-year extension
options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval.

       At December 31, 2019, Main Street had $300.0 million in borrowings outstanding under the Credit Facility. As of December 31, 2019, if Main Street had adopted the fair
value option under ASC 825 for its Credit Facility, Main Street estimates its fair value would approximate its recorded value. Main Street recognized interest expense related to
the Credit Facility, including unused commitment fees and amortization of deferred issuance costs, of $11.0 million, $11.7 million and $10.6 million, respectively, for the years
ended December 31, 2019, 2018 and 2017. As of December 31, 2019, the interest rate on the Credit Facility was 3.6% (based on the LIBOR rate of 1.7% as of the most recent
reset date of December 1, 2019 plus 1.875%). The average interest rate for borrowings under the Credit Facility during the year ended December 31, 2019 was 4.1%. As of
December 31, 2019, Main Street was in compliance with all financial covenants of the Credit Facility.

6.125% Notes

       In April 2013, Main Street issued $92.0 million, including the underwriters' full exercise of their option to purchase additional principal amounts to cover over-allotments,
in aggregate principal amount of 6.125% Notes due 2023 (the "6.125% Notes"). The 6.125% Notes bore interest at a rate of 6.125% per year payable quarterly on January 1,
April 1, July 1 and October 1 of each year. On April 2, 2018, Main Street redeemed the entire principal amount of the issued and outstanding 6.125% Notes, effective April 1,
2018 (the "Redemption Date"), at par value plus the accrued and unpaid interest thereon from January 1, 2018 through, but excluding, the Redemption Date. As part of the
redemption, Main Street recognized a realized loss on extinguishment of debt of $1.5 million in the second quarter of 2018 related to the write-off of the related unamortized
deferred financing costs. Main Street recognized interest expense related to the 6.125% Notes, including amortization of unamortized deferred issuance costs, of $1.5 million
and $5.9 million for the years ended December 31 2018 and 2017, respectively.

4.50% Notes due 2019

       In November 2014, Main Street issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes due 2019") at an issue price of
99.53%. The 4.50% Notes due 2019 bore interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. On December 2, 2019, Main Street
repaid the entire principal amount of the issued and outstanding 4.50% Notes

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

due 2019, effective December 1, 2019 (the "Maturity Date"), at par value plus the accrued and unpaid interest thereon from June 1, 2019 through the Maturity Date. Main
Street recognized interest expense related to the 4.50% Notes due 2019, including amortization of unamortized deferred issuance costs, of $7.9 million for the year ended
December 31, 2019 and $8.6 million for each of the years ended December 31 2018 and 2017.

4.50% Notes due 2022

       In November 2017, Main Street issued $185.0 million in aggregate principal amount of 4.50% unsecured notes due 2022 (the "4.50% Notes due 2022") at an issue price of
99.16%. The 4.50% Notes due 2022 are unsecured obligations and rank pari passu with Main Street's current and future unsecured indebtedness; senior to any of its future
indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022; effectively subordinated to all of its existing and future secured indebtedness, to the extent
of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and
other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2022 mature on December 1, 2022, and may be
redeemed in whole or in part at any time at Main Street's option subject to certain make-whole provisions. The 4.50% Notes due 2022 bear interest at a rate of 4.50% per year
payable semiannually on June 1 and December 1 of each year. The total net proceeds from the 4.50% Notes due 2022, resulting from the issue price and after underwriting
discounts and estimated offering expenses payable, were approximately $182.2 million. Main Street may from time to time repurchase the 4.50% Notes due 2022 in accordance
with the 1940 Act and the rules promulgated thereunder. As of December 31, 2019, the outstanding balance of the 4.50% Notes due 2022 was $185.0 million and the recorded
value of $183.2 million was net of unamortized debt issuance costs of $1.8 million. As of December 31, 2019, if Main Street had adopted the fair value option under ASC 825
for the 4.50% Notes due 2022, Main Street estimates its fair value would be approximately $194.8 million. Main Street recognized interest expense related to the 4.50% Notes
due 2022, including amortization of unamortized deferred issuance costs, of $8.9 million, $9.0 million and $0.9 million for the years ended December 31, 2019, 2018 and 2017,
respectively.

       The indenture governing the 4.50% Notes due 2022 (the "4.50% Notes due 2022 Indenture") contains certain covenants, including covenants requiring Main Street's
compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940
Act, as well as covenants requiring Main Street to provide financial information to the holders of the 4.50% Notes due 2022 and the Trustee if Main Street ceases to be subject
to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes due 2022 Indenture. As of
December 31, 2019, Main Street was in compliance with these covenants.

5.20% Notes

       In April 2019, Main Street issued $250.0 million in aggregate principal amount of 5.20% unsecured notes due 2024 (the "5.20% Notes") at an issue price of 99.125%.
Subsequently, in December 2019, Main Street issued an additional $75.0 million of the 5.20% Notes at an issue price of 105.0%. The 5.20% Notes issued in December 2019
have identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019. The 5.20% Notes are unsecured obligations and rank pari passu with Main
Street's current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 5.20% Notes; effectively subordinated
to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and
structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The
5.20% Notes

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

mature on May 1, 2024, and may be redeemed in whole or in part at any time at Main Street's option subject to certain make-whole provisions. The 5.20% Notes bear interest at
a rate of 5.20% per year payable semiannually on May 1 and November 1 of each year. The total net proceeds from the 5.20% Notes, resulting from the issue price and after
underwriting discounts and estimated offering expenses payable, were approximately $324.1 million. Main Street may from time to time repurchase the 5.20% Notes in
accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2019, the outstanding balance of the 5.20% Notes was $325.0 million and the recorded
value of $324.6 million was net of unamortized debt issuance costs of $0.4 million. As of December 31, 2019, if Main Street had adopted the fair value option under ASC 825
for the 5.20% Notes, Main Street estimates its fair value would be approximately $350.9 million. Main Street recognized interest expense related to the 5.20% Notes, including
amortization of unamortized deferred issuance costs, of $9.7 million for the year ended December 31, 2019.

       The indenture governing the 5.20% Notes (the "5.20% Notes Indenture") contains certain covenants, including covenants requiring Main Street's compliance with
(regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as
covenants requiring Main Street to provide financial information to the holders of the 5.20% Notes and the Trustee if Main Street ceases to be subject to the reporting
requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 5.20% Notes Indenture. As of December 31, 2019, Main
Street was in compliance with these covenants.

Contractual Payment Obligations

       A summary of Main Street's contractual payment obligations for the repayment of outstanding indebtedness at December 31, 2019 is as follows:

SBIC debentures
4.50% Notes due 2022
5.20% Notes due 2024
Credit Facility
Total

2022

2020

2021

  $ 37,000  $ 40,000  $

Total
2023
311,800 
16,000  $
185,000 
— 
325,000 
— 
300,000 
  300,000 
  $ 37,000  $ 40,000  $ 190,000  $ 316,000  $ 388,800  $ 150,000  $ 1,121,800 

2024
63,800  $ 150,000  $

  185,000 
— 
— 

— 
  325,000 
— 

— 
— 
— 

— 
— 
— 

— 
— 
— 

  Thereafter

5,000  $

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Senior Securities

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       Information about Main Street's senior securities is shown in the following table as of December 31 for the years indicated in the table, unless otherwise noted.

Class and Year

SBIC Debentures
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019

Credit Facility
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019

6.125% Notes
2013
2014
2015
2016
2017

4.50% Notes Due 2019
2014
2015
2016
2017
2018

Total Amount
Outstanding
Exclusive of
Treasury
Securities(1)
(dollars in
thousands)

Asset
Coverage
per Unit(2)

Involuntary
Liquidating
Preference
per Unit(3)

Average
Market Value
per Unit(4)

  $

  $

  $

  $

180,000 
220,000 
225,000 
200,200 
225,000 
225,000 
240,000 
295,800 
345,800 
311,800 

39,000 
107,000 
132,000 
237,000 
218,000 
291,000 
343,000 
64,000 
301,000 
300,000 

90,882 
90,823 
90,738 
90,655 
90,655 

175,000 
175,000 
175,000 
175,000 
175,000 

176

2,030 
2,202 
2,763 
2,476 
2,323 
2,368 
2,415 
2,687 
2,455 
2,363 

2,030 
2,202 
2,763 
2,476 
2,323 
2,368 
2,415 
2,687 
2,455 
2,363 

2,476 
2,323 
2,368 
2,415 
2,687 

2,323 
2,368 
2,415 
2,687 
2,455 

— 
— 
— 
— 
— 
— 
— 
— 
— 
— 

— 
— 
— 
— 
— 
— 
— 
— 
— 
— 

—  $
— 
— 
— 
— 

— 
— 
— 
— 
— 

N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 

N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 

24.35 
24.78 
25.40 
25.76 
25.93 

N/A 
N/A 
N/A 
N/A 
N/A 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Class and Year

4.50% Notes Due 2022
2017
2018
2019

5.20% Notes Due 2024
2019

Total Amount
Outstanding
Exclusive of
Treasury
Securities(1)
(dollars in
thousands)

Asset
Coverage
per Unit(2)

Involuntary
Liquidating
Preference
per Unit(3)

Average
Market Value
per Unit(4)

  $

185,000 
185,000 
185,000 

2,687 
2,455 
2,363 

325,000 

2,363 

— 
— 
— 

— 

N/A 
N/A 
N/A 

N/A 

(1)

(2)

(3)

(4)

Total amount of each class of senior securities outstanding at the end of the period presented. 

Asset coverage per unit is the ratio of the carrying value of Main Street's total consolidated assets, less all liabilities and indebtedness not represented
by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar
amounts per $1,000 of indebtedness. 

The amount to which such class of senior security would be entitled upon the involuntary liquidation of the issuer in preference to any security junior to
it. The "—" indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities. 

Average market value per unit for the 6.125% Notes represents the average of the daily closing prices as reported on the NYSE during the period
presented. Average market value per unit for the SBIC debentures, Credit Facility, 4.50% Notes due 2019, 4.50% Notes due 2022 and 5.20% Notes are
not applicable because these are not registered for public trading.

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NOTE F — FINANCIAL HIGHLIGHTS

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Per Share Data:
NAV at the beginning of the period
Net investment income(1)
Net realized gain (loss)(1)(2)
Net unrealized appreciation (depreciation)(1)(2)
Income tax benefit (provision)(1)(2)
Net increase in net assets resulting from operations(1)
Dividends paid from net investment income
Distributions from capital gains

Total dividends paid

Impact of the net change in monthly dividends declared prior to

the end of the period and paid in the subsequent period

Accretive effect of stock offerings (issuing shares above NAV

per share)

Accretive effect of DRIP issuance (issuing shares above NAV

per share)

Other(3)
NAV at the end of the period
Market value at the end of the period
Shares outstanding at the end of the period

  $

2019

24.09  $
2.50 
(0.33)  
(0.09)  
(0.02)  
2.06 
(2.91)  
— 
(2.91)  

Twelve Months Ended December 31,
2017

2018

2016

23.53  $
2.60 
(0.03)  
0.32 
(0.09)  
2.80 
(2.69)  
(0.16)  
(2.85)  

22.10  $
2.39 
0.19 
0.86 
(0.43)  
3.01 
(2.47)  
(0.32)  
(2.79)  

21.24  $
2.23 
0.56 
(0.14)  
0.02 
2.67 
(1.99)  
(0.74)  
(2.73)  

2015

20.85 
2.18 
(0.43)
0.20 
0.18 
2.13 
(2.49)
(0.16)
(2.65)

(0.01)  

(0.01)  

(0.01)  

(0.01)  

(0.01)

0.55 

0.47 

1.07 

0.76 

0.74 

0.12 
0.01 
23.91  $
43.11  $

0.09 
0.06 
24.09  $
33.81  $

0.06 
0.09 
23.53  $
39.73  $

  $
  $

  64,252,937 

  61,264,861 

  58,660,680 

  54,354,857 

0.08 
0.09 
22.10  $
36.77  $

0.12 
0.06 
21.24 
29.08 
  50,413,744 

(1)

(2)

(3)

Based on weighted-average number of common shares outstanding for the period. 

Net realized gains or losses, net unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period. 

Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted-average basic shares
outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date.

NAV at end of period
Average NAV
Average outstanding debt
Ratio of total expenses, including income tax expense, to average

NAV(1)

Ratio of operating expenses to average NAV(2)
Ratio of operating expenses, excluding interest expense, to average

NAV(2)

Ratio of net investment income to average NAV
Portfolio turnover ratio
Total investment return(3)
Total return based on change in NAV(4)

2019

2018

2017
(dollars in thousands)
  $ 1,536,390  $ 1,476,049  $ 1,380,368  $ 1,201,481  $ 1,070,894 
  $ 1,517,615  $ 1,441,163  $ 1,287,639  $ 1,118,567  $ 1,055,313 
759,396 
  $ 1,055,800  $

843,993  $

947,694  $

801,048  $

2015

2016

5.75% 
5.67% 

2.36% 
10.37% 
18.86% 
36.86% 
8.78% 

5.75% 
5.32% 

2.30% 
10.87% 
29.13% 
(8.25)% 
12.19% 

7.37% 
5.47% 

2.63% 
10.51% 
38.18% 
16.02% 
14.20% 

5.48% 
5.59% 

2.58% 
10.35% 
24.63% 
37.36% 
12.97% 

4.63% 
5.45% 

2.41% 
10.15% 
25.37% 
8.49% 
11.11% 

(1)

Total expenses are the sum of operating expenses and net income tax provision/benefit. Net income tax provision/benefit includes the accrual of net
deferred tax provision/benefit relating to the net unrealized appreciation/

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and
may vary significantly from period to period. Main Street is required to include net deferred tax provision/benefit in calculating its total expenses even
though these net deferred taxes are not currently payable/receivable.

(2)

(3)

(4)

Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of
expenses allocated to the External Investment Manager. 

Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day
of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street's dividend reinvestment plan during the
period. The return does not reflect any sales load that may be paid by an investor. 

Total return is based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-
operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value
other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity
incentive plans and other miscellaneous items.

NOTE G — DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME

       During 2019, Main Street paid supplemental dividends of $0.250 per share in June 2019 and $0.240 per share in December 2019, regular monthly dividends of $0.195 per
share for each month of January through March 2019, regular monthly dividends of $0.200 per share for each month of April through June 2019 and regular monthly dividends
of $0.205 per share for each month of July through December 2019, with such dividends totaling $182.8 million, or $2.905 per share. The 2019 regular monthly dividends,
which total $151.6 million, or $2.415 per share, represent a 5.2% increase from the regular monthly dividends paid per share for the year ended 2018. For tax purposes, the
2019 dividends, which included the effects of dividends on an accrual basis, total $2.915 per share and were comprised of (i) ordinary income totaling approximately $2.636 per
share, (ii) qualified dividend income totaling approximately $0.249 per share and (iii) long term capital gain totaling approximately $0.031 per share. As of December 31, 2019,
Main Street estimates that it has generated undistributed taxable income of approximately $42.3 million, or $0.66 per share, that will be carried forward toward distributions to
be paid in 2020. For the years ended December 31, 2018 and 2017, Main Street paid total dividends of approximately $170.9 million, or $2.845 per share, and $157.6 million,
or $2.785 per share, respectively.

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its
subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes
on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable
income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-
exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4%
non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are
declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of
the year in which such taxable income was generated.

       Ordinary dividend distributions from a RIC do not qualify for the 20% maximum tax rate (plus a 3.8% Medicare surtax, if applicable) on dividend income from domestic
corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and
qualified foreign corporations. The tax attributes for distributions will generally

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

include both ordinary income and qualified dividends, but may also include either one or both of capital gains and return of capital. The tax character of distributions paid for
the years ended December 31, 2019, 2018 and 2017 was as follows:

Ordinary income(1)
Qualified dividends
Distributions of long term capital gains
Distributions on tax basis

Twelve Months Ended December 31,
2018
2017
2019
(dollars in thousands)
  $ 166,280  $ 136,934  $ 126,540 
4,656 
27,479 
  $ 183,589  $ 171,724  $ 158,675 

15,451 
1,858 

12,277 
22,513 

(1)

The years ended December 31, 2019, 2018 and 2017 include $1.6 million, $1.4 million and $1.5 million, respectively, that was reported as
compensation for services for tax purposes in accordance with Section 83 of the Code.

       Listed below is a reconciliation of "Net increase in net assets resulting from operations" to taxable income and to total distributions declared to common stockholders for
the years ended December 31, 2019, 2018 and 2017.

Net increase in net assets resulting from operations
Book-tax difference from share-based compensation expense
Net unrealized (appreciation) depreciation
Income tax provision
Pre-tax book (income) loss not consolidated for tax purposes
Book income and tax income differences, including debt origination, structuring fees, dividends,

realized gains and changes in estimates

Estimated taxable income(1)
Taxable income earned in prior year and carried forward for distribution in current year
Taxable income earned prior to period end and carried forward for distribution next period
Dividend payable as of period end and paid in the following period
Total distributions accrued or paid to common stockholders

2017

2019

Year ended December 31,
2018
(estimated, dollars in thousands)
  $ 129,569  $ 168,213  $ 170,622 
(867)
(48,757)
24,471 
2,357 

(354)  
5,754 
1,242 
(30,690)  

(1,430)  
(19,275)  
6,152 
(454)  

65,686 
  171,207 
41,489 
(42,281)  
13,174 

10,844 
  158,670 
42,362 
(53,503)
11,146 
  $ 183,589  $ 171,724  $ 158,675 

17,649 
  170,855 
42,357 
(53,436)  
11,948 

(1)

Main Street's taxable income for each period is an estimate and will not be finally determined until the company files its tax return for each year.
Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be
different than this estimate.

       The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio
companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-of-income" requirements contained in the RIC tax provisions of the
Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries
are

180

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

included in Main Street's consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for
income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable
income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The
Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and
liabilities, of the Taxable Subsidiaries are reflected in Main Street's consolidated financial statements.

       The income tax expense, or benefit, and the related tax assets and liabilities generated by the Taxable Subsidiaries, if any, are reflected in Main Street's consolidated
statement of operations. Main Street's provision for income taxes was comprised of the following for the years ended December 31, 2019, 2018 and 2017 (amounts in
thousands):

Current tax expense (benefit):
Federal
State

Total current tax expense (benefit)

Deferred tax expense (benefit):
Federal
State

Total deferred tax expense (benefit)

Excise tax

Total income tax provision (benefit)

Twelve Months Ended
December 31,
2018

2019

2017

  $

1,019  $ (2,398) $
1,408 
2,427 

1,688 
(710)  

1,865 
1,415 
3,280 

(1,267)  
(1,037)  
(2,304)  
1,119 
1,242  $

  15,248 
3,763 
4,017 
2,070 
  19,265 
5,833 
1,029 
1,926 
6,152  $ 24,471 

  $

       MSCC operates in a manner to maintain its RIC status and to eliminate corporate-level U.S. federal income tax (other than the 4% excise tax) by distributing sufficient
investment company taxable income and long-term capital gains. As a result, MSCC will have an effective tax rate equal to 0% before the excise tax and income taxes incurred
by the Taxable Subsidiaries. As such, a reconciliation of the differences between Main Street's reported income tax expense and its tax expense at the federal statutory rate of
21% is not meaningful.

       As of December 31, 2019, the cost of investments for U.S. federal income tax purposes was $2,330.6 million, with such investments having a gross unrealized appreciation
of $507.6 million and gross unrealized depreciation of $235.8 million.

       Management believes that the realization of the deferred tax assets is more likely than not based on expectations as to future taxable income and scheduled reversals of
temporary differences. Accordingly, Main Street did not record a valuation allowance related to its deferred tax assets at December 31, 2019 and 2018.

181

 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The following table sets forth the significant components of net deferred tax assets and liabilities as of December 31, 2019 and 2018 (amounts in thousands):

Deferred tax assets:
Net operating loss carryforwards
Interest Expense Carryforwards
Capital loss carryforwards
Other

Total deferred tax assets

Deferred tax liabilities:
Net unrealized appreciation of portfolio investments
Net basis differences in portfolio investments

Total deferred tax liabilities

Total deferred tax asset (liabilities), net

Years Ended
December 31,

2019

2018

  $

32,778  $
10,079 
— 
2,041 
44,898 

29,546 
5,199 
2,795 
1,532 
39,072 

(31,851)  
(29,196)  
(61,047)  

(37,137)
(18,961)
(56,098)
  $ (16,149) $ (17,026)

       For the year ended December 31, 2019, for U.S. federal income tax purposes, the Taxable Subsidiaries had no remaining net capital loss carryforwards as they had fully
utilized their capital loss carryover from prior years of $9.9 million. At December 31, 2019, the Taxable Subsidiaries had a net operating loss carryforward from prior years
which, if unused, will expire in various taxable years from 2028 through 2037. Any net operating losses generated in 2018 and future periods are not subject to expiration and
will carryforward indefinitely until utilized. The timing and manner in which Main Street will utilize any loss carryforwards generated before December 31, 2018 may be
limited in the future under the provisions of the Code. Additionally, the Taxable Subsidiaries have interest expense limitation carryforwards which have an indefinite
carryforward. In addition, for the year ended December 31, 2019, for U.S. federal income tax purposes at the RIC level, MSCC had net capital loss carryforwards totaling
approximately $19.7 million available to offset future capital gains, to the extent available and permitted by U.S. federal income tax law. However, as long as MSCC maintains
its RIC status, any capital loss carryforwards at the RIC are not subject to a federal income tax-effect and are not subject to an expiration date.

NOTE H — COMMON STOCK

       Main Street maintains a program with certain selling agents through which it can sell shares of its common stock by means of at-the-market offerings from time to time (the
"ATM Program"). During the year ended December 31, 2019, Main Street sold 2,247,187 shares of its common stock at a weighted-average price of $40.05 per share and
raised $90.0 million of gross proceeds under the ATM Program. Net proceeds were $88.8 million after commissions to the selling agents on shares sold and offering costs. As of
December 31, 2019, 8,359,150 shares remained available for sale under the ATM Program. As of December 31, 2019, sales transactions representing 11,596 shares had not
settled and were not included in shares issued and outstanding on the face of the consolidated balance sheet, but were included in the weighted-average shares outstanding in the
consolidated statements of operations and in the shares used to calculate net asset value per share.

       During the year ended December 31, 2018, Main Street sold 2,060,019 shares of its common stock at a weighted-average price of $38.48 per share and raised $79.3 million
of gross proceeds under the ATM

182

 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Program. Net proceeds were $78.0 million after commissions to the selling agents on shares sold and offering costs.

       During the year ended December 31, 2017, Main Street sold 3,944,972 shares of its common stock at a weighted-average price of $38.72 per share and raised
$152.8 million of gross proceeds under the ATM Program. Net proceeds were $150.9 million after commissions to the selling agents on shares sold and offering costs.

NOTE I — DIVIDEND REINVESTMENT PLAN ("DRIP")

       Main Street's DRIP provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if
Main Street declares a cash dividend, its stockholders who have not "opted out" of the DRIP by the dividend record date will have their cash dividend automatically reinvested
into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of shares of common stock or through open market
purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC's common stock on the valuation
date determined for each dividend by Main Street's Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the
average price of the applicable shares purchased, before any associated brokerage or other costs. Main Street's DRIP is administered by its transfer agent on behalf of Main
Street's record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street's DRIP but may
provide a similar dividend reinvestment plan for their clients.

       For the year ended December 31, 2019, $18.1 million of the total $182.8 million in dividends paid to stockholders represented DRIP participation. During this period, the
DRIP participation requirements were satisfied with the issuance of 441,927 newly issued shares. For the year ended December 31, 2018, $14.9 million of the total
$170.9 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of
394,403 newly issued shares. For the year ended December 31, 2017, $9.2 million of the total $157.6 million in dividends paid to stockholders represented DRIP participation.
During this period, the DRIP participation requirements were satisfied with the issuance of 234,513 newly issued shares. The shares disclosed above relate only to Main Street's
DRIP and exclude any activity related to broker-managed dividend reinvestment plans.

NOTE J — SHARE-BASED COMPENSATION

       Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation — Stock Compensation. Accordingly,
for restricted stock awards, Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value
of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

       Main Street's Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2015 Equity
and Incentive Plan (the "Equity and Incentive Plan"). These shares generally vest over a three-year period from the grant date. The fair value is expensed over the service period,
starting on the grant date. The following table summarizes the restricted stock issuances approved by Main Street's Board of Directors under the Equity and Incentive Plan, net
of

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

shares forfeited, if any, and the remaining shares of restricted stock available for issuance as of December 31, 2019.

Restricted stock authorized under the plan
Less net restricted stock granted during:

Year ended December 31, 2015
Year ended December 31, 2016
Year ended December 31, 2017
Year ended December 31, 2018
Year ended December 31, 2019

Restricted stock available for issuance as of December 31, 2019

  3,000,000 

(900)
(260,514)
(223,812)
(243,779)
(384,049)
  1,886,946 

       As of December 31, 2019, the following table summarizes the restricted stock issued to Main Street's non-employee directors and the remaining shares of restricted stock
available for issuance pursuant to the Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. These shares are granted upon appointment or
election to the board and vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over such service
period.

Restricted stock authorized under the plan
Less net restricted stock granted during:

Year ended December 31, 2015
Year ended December 31, 2016
Year ended December 31, 2017
Year ended December 31, 2018
Year ended December 31, 2019

Restricted stock available for issuance as of December 31, 2019

  300,000 

(6,806)
(6,748)
(5,948)
(6,376)
(6,008)
  268,114 

       For the years ended December 31, 2019, 2018 and 2017, Main Street recognized total share-based compensation expense of $10.1 million, $9.2 million and $10.0 million,
respectively, related to the restricted stock issued to Main Street employees and non-employee directors. As of December 31, 2019, there was $15.8 million of total
unrecognized compensation expense related to Main Street's non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-
average period of approximately 2.1 years as of December 31, 2019.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

NOTE K — COMMITMENTS AND CONTINGENCIES

       As of December 31, 2019, Main Street had the following outstanding commitments (in thousands):

Investments with equity capital commitments that have not yet funded:

Congruent Credit Opportunities Funds
Congruent Credit Opportunities Fund II, LP
Congruent Credit Opportunities Fund III, LP

Encap Energy Fund Investments
EnCap Energy Capital Fund VIII, L.P. 
EnCap Energy Capital Fund IX, L.P. 
EnCap Energy Capital Fund X, L.P. 
EnCap Flatrock Midstream Fund II, L.P. 
EnCap Flatrock Midstream Fund III, L.P. 

EIG Fund Investments

Freeport Fund Investments
Freeport Financial SBIC Fund LP
Freeport First Lien Loan Fund III LP

Brightwood Capital Fund Investments
Brightwood Capital Fund III, LP
Brightwood Capital Fund IV, LP

Harris Preston Fund Investments
HPEP 3, L.P. 

LKCM Headwater Investments I, L.P. 

Dos Rios Partners
Dos Rios Partners, LP
Dos Rios Partners — A, LP

Construction Supply Investments, LLC

Access Media Holdings, LLC

Total equity commitments

185

Amount

  $

  $

  $

  $

8,488 
8,117 
16,605 

220 
308 
1,661 
4,728 
803 
7,720 

  $

4,666 

  $

  $

  $

  $

1,375 
2,544 
3,919 

3,000 
500 
3,500 

  $

2,526 

  $

2,500 

  $

  $

  $

1,594 
506 
2,100 

495 

$

284

  $

44,315 

 
 
 
 
 
  
 
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
  
 
 
  
 
 
 
 
Table of Contents

MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Investments with commitments to fund revolving loans that have not been fully drawn or term loans with

additional commitments not yet funded:

Independent Pet Partners Intermediate Holdings, LLC
SI East, LLC
Hunter Defense Technologies, Inc. 
Fortna, Inc. 
GS HVAM Intermediate, LLC
PaySimple, Inc. 
GRT Rubber Technologies LLC
Arcus Hunting LLC
Echo US Holdings, LLC. 
Centre Technologies Holdings, LLC
Boccella Precast Products LLC
PPL RVs, Inc. 
Lynx FBO Operating LLC
Chamberlin Holding LLC
Direct Marketing Solutions, Inc. 
Trantech Radiator Topco, LLC
Meisler Operating LLC
Chisholm Energy Holdings, LLC
Hawk Ridge Systems, LLC
Gamber-Johnson Holdings, LLC
LL Management, Inc.(Lab Logistics)
NRI Clinical Research, LLC
CompareNetworks Topco, LLC
Analytical Systems Keco, LLC
CTVSH, PLLC
HW Temps LLC
ASC Ortho Management Company, LLC
DTE Enterprises RLOC
Mac Lean-Fogg Company
PT Network, LLC
Invincible Boat Company, LLC. 
TEAM Public Choices, LLC
Wireless Vision Holdings, LLC
HDC/HW Intermediate Holdings

American Nuts, LLC
Dynamic Communities, LLC
NinjaTrader, LLC
Total loan commitments
Total commitments

  $

Amount

12,236 
7,500 
6,460 
4,411 
3,636 
3,318 
3,099 
2,795 
2,586 
2,400 
2,000 
2,000 
1,875 
1,600 
1,600 
1,600 
1,600 
1,429 
1,400 
1,200 
1,182 
1,000 
1,000 
800 
800 
800 
750 
750 
735 
658 
648 
614 
592 
320 
281 

250 
200 
76,125 
  $
  $ 120,440 

       Main Street will fund its unfunded commitments from the same sources it uses to fund its investment commitments that are funded at the time they are made (which are
typically through existing cash and cash equivalents and borrowings under the Credit Facility). Main Street follows a process to manage its liquidity and ensure that it has
available capital to fund its unfunded commitments as necessary. The Company had

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

total unrealized depreciation of $0.3 million on the outstanding unfunded commitments as of December 31, 2019.

       Effective January 1, 2019, ASC 842 required that a lessee evaluate its leases to determine whether they should be classified as operating or financing leases. Main Street
identified one operating lease for its office space. The lease commenced May 15, 2017 and expires January 31, 2028. It contains two five-year extension options for a final
expiration date of January 31, 2038.

       As Main Street classified this lease as an operating lease prior to implementation, ASC 842-10-65-1 indicates that a right-of-use asset and lease liability should be recorded
based on the effective date. Main Street adopted ASC 842 effective January 1, 2019 and recorded a right-of-use asset and a lease liability as of that date. After this date, Main
Street has recorded lease expense on a straight-line basis, consistent with the accounting treatment for lease expense prior to the adoption of ASC 842.

       Total lease expense incurred by Main Street for each of the years ended December 31 2019, 2018 and 2017 was $0.7 million. As of December 31, 2019, the asset related to
the operating lease was $4.8 million and is included in the interest receivable and other assets balance on the consolidated balance sheet. The lease liability was $5.6 million and
is included in the accounts payable and other liabilities balance on the consolidated balance sheet. As of December 31, 2019, the remaining lease term was 8.1 years and the
discount rate was 4.2%.

       The following table shows future minimum payments under Main Street's operating lease as of December 31, 2019 (in thousands):

For the Years Ended December 31,
2020
2021
2022
2023
2024
Thereafter
Total

  Amount
  $

762 
776 
790 
804 
818 
2,611 
  $ 6,561 

       Main Street may, from time to time, be involved in litigation arising out of its operations in the normal course of business or otherwise. Furthermore, third parties may try
to impose liability on Main Street in connection with the activities of its portfolio companies. While the outcome of any current legal proceedings cannot at this time be
predicted with certainty, Main Street does not expect any current matters will materially affect its financial condition or results of operations; however, there can be no
assurance whether any pending legal proceedings will have a material adverse effect on Main Street's financial condition or results of operations in any future reporting period.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

NOTE L — SELECTED QUARTERLY DATA (UNAUDITED)

2019
(dollars in thousands,
except per share amounts)

Qtr. 1

Qtr. 2

Qtr. 3

Qtr. 4

Total investment income
Net investment income
Net increase in net assets resulting from operations
Net investment income per share — basic and diluted
Net increase in net assets resulting from operations per share — basic and diluted

Total investment income
Net investment income
Net increase in net assets resulting from operations
Net investment income per share — basic and diluted
Net increase in net assets resulting from operations per share — basic and diluted

Total investment income
Net investment income
Net increase in net assets resulting from operations
Net investment income per share — basic and diluted
Net increase in net assets resulting from operations per share — basic and diluted

NOTE M — RELATED PARTY TRANSACTIONS

  $ 61,365  $ 61,293  $ 60,068  $ 60,649 
  $ 39,491  $ 39,617  $ 39,012  $ 39,247 
  $ 41,401  $ 38,254  $ 33,902  $ 16,014 
0.62 
0.63  $
  $
0.25 
0.61  $
  $

0.64  $
0.67  $

0.62  $
0.54  $

2018
(dollars in thousands,
except per share amounts)

Qtr. 1

Qtr. 2

Qtr. 3

Qtr. 4

  $ 55,942  $ 59,869  $ 58,263  $ 59,280 
  $ 36,975  $ 39,512  $ 38,075  $ 42,083 
9,505 
  $ 34,517  $ 55,451  $ 68,740  $
0.69 
0.63  $
  $
0.16 
1.13  $
  $

0.63  $
0.59  $

0.66  $
0.93  $

2017
(dollars in thousands,
except per share amounts)

Qtr. 1

Qtr. 2

Qtr. 3

Qtr. 4

  $ 47,889  $ 50,271  $ 51,786  $ 55,795 
  $ 31,166  $ 32,693  $ 34,029  $ 37,483 
  $ 31,450  $ 42,829  $ 34,899  $ 61,444 
0.64 
0.58  $
  $
1.05 
0.76  $
  $

0.57  $
0.57  $

0.60  $
0.61  $

       As discussed further in Note D, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of Main Street's
Investment Portfolio. At December 31, 2019, Main Street had a receivable of approximately $2.7 million due from the External Investment Manager which included
(i) approximately $1.6 million related primarily to operating expenses incurred by MSCC or its subsidiaries as required to support the External Investment Manager's business
and amounts due from the External Investment Manager to Main Street under a tax sharing agreement (see further discussion in Note D) and (ii) approximately $1.1 million of
dividends declared but not paid by the External Investment Manager.

       In November 2015, Main Street's Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015 Deferred
Compensation Plan"). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors
previously adopted by the Board of Directors in June 2013 (the "2013 Deferred Compensation Plan"). Under the 2015 Deferred Compensation Plan, non-employee directors and
certain key

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

employees may defer receipt of some or all of their cash compensation and directors' fees, subject to certain limitations. Individuals participating in the 2015 Deferred
Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct
investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31,
2019, $8.0 million of compensation and directors' fees had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013
Deferred Compensation Plan). Of this amount, $4.2 million was deferred into phantom Main Street stock units, representing 119,064 shares of Main Street's common stock.
Including phantom stock units issued through dividend reinvestment and net of any shares distributed, the phantom stock units outstanding as of December 31, 2019
represented 150,955 shares of Main Street's common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included
as outstanding on the consolidated statements of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but the related
phantom stock units are included in weighted-average shares outstanding with the related dollar amount of the deferral included in total expenses in Main Street's consolidated
statements of operations as earned. The dividend amounts related to additional phantom stock units are included in the statements of changes in net assets as an increase to
dividends to stockholders offset by a corresponding increase to additional paid-in capital.

NOTE N — SUBSEQUENT EVENTS

       During February 2020, Main Street declared regular monthly dividends of $0.205 per share for each month of April, May and June 2020. These regular monthly dividends
equal a total of $0.615 per share for the second quarter of 2020 and represent a 2.5% increase from the dividends declared for the second quarter of 2019. Including the
dividends declared for the second quarter of 2020, Main Street will have paid $28.370 per share in cumulative dividends since its October 2007 initial public offering.

189

 
 Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders
Main Street Capital Corporation

Opinion on financial statement schedule

       We have audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB") the consolidated financial statements of
Main Street Capital Corporation and subsidiaries (the "Company") referred to in our report dated February 28, 2020, which is included in the annual report on Form 10-K. Our
audits of the consolidated financial statements also included the audit of the financial statement schedule (listed in the index appearing under Item 15(2)). In our opinion, this
financial statement schedule, when considered in relation to the consolidated financial statements as a whole, presents fairly, in all material respects, the information set forth
therein.

Basis for opinion

       This financial statement schedule is the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statement
schedule based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with
the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

/s/ GRANT THORNTON LLP

Houston, Texas
February 28, 2020

190

 
 Schedule 12-14

    MAIN STREET CAPITAL CORPORATION 

Consolidated Schedule of Investments in and Advances to Affiliates
December 31, 2019
(dollars in thousands) 

Investment(1)(10)(11)

 Geography 

Amount of
Realized
Gain/(Loss) 

Amount of
Unrealized
Gain/(Loss) 

Amount
of
Interest,
Fees or
Dividends
Credited
to
Income(2) 

December 31,
2018
Fair Value  

Gross
Additions(3) 

Gross
Reductions(4) 

December 31,
2019
Fair Value  

Table of Contents

Company
Majority-owned investments

Café Brazil, LLC
California Splendor

Holdings LLC

Clad-Rex Steel, LLC

 Member Units
 LIBOR Plus 8.00% (Floor 1.00%)

 LIBOR Plus 10.00% (Floor 1.00%)  

 Preferred Member Units

 Preferred Member Units

 LIBOR Plus 9.00% (Floor 1.00%)
 Member Units

 10% Secured Debt

 Member Units

CMS Minerals Investments
CompareNetworks Topco, LLC  LIBOR Plus 11.00% (Floor 1.00%)  

 Member Units

Direct Marketing Solutions, Inc.

 Preferred Member Units

 LIBOR Plus 11.00% (Floor 1.00%)  
 Preferred Stock

Gamber-Johnson Holdings, LLC  LIBOR Plus 6.50% (Floor 2.00%)

 Member Units

GRT Rubber Technologies LLC  LIBOR Plus 7.00%

Guerdon Modular Holdings, Inc.

Harborside Holdings, LLC
IDX Broker, LLC

 Member Units

 16% Secured Debt
 LIBOR Plus 8.50% (Floor 1.00%)

 Preferred Stock

 Common Stock

 Warrants

 Member Units
 11.5% Secured Debt
 Preferred Member Units

Jensen Jewelers of Idaho, LLC  Prime Plus 6.75% (Floor 2.00%)

 Member Units

Kickhaefer Manufacturing

 11.5% Secured Debt

Company, LLC

Lamb Ventures, LLC

 Member Units

 9.0% Secured Debt

 Member Units

 LIBOR Plus 5.75%
 11% Secured Debt

 Preferred Equity

 Member Units

 9.5% Secured Debt

 Member Units

Market Force Information, LLC  8% Secured Debt

MH Corbin Holding LLC

 6% Current / 6% PIK Secured Debt  

 Member Units

 5% Current / 5% PIK Secured Debt  
 Preferred Member Units

 Preferred Member Units

Mid-Columbia Lumber

 10% Secured Debt

Products, LLC

 12% Secured Debt

 Member Units

 9.5% Secured Debt

 Member Units

MSC Adviser I, LLC
Mystic Logistics Holdings, LLC  12% Secured Debt

 Member Units

PPL RVs, Inc.

 Common Stock

 LIBOR Plus 8.75% (Floor 0.50%)
 Common Stock

Principle Environmental, LLC

(d/b.a TruHorizon
Environmental Solutions)
Quality Lease Service, LLC

 13% Secured Debt
 Preferred Member Units
 Warrants
 Zero Coupon Secured Debt
 Member Units

(8)

(9)

(9)

(9)

(9)
(5)

(5)

(5)

(5)
(9)
(9)

(9)
(9)

(9)
(5)

(5)
(8)

(8)
(9)

(9)

(9)

(9)

(9)
(8)
(9)

(9)
(9)

(9)

(5)

(5)

(5)

(5)
(8)

(8)

(8)

(8)

(8)

(8)
(9)

(9)

(9)
(5)

(5)

(5)

(9)

(9)

(9)

(9)

(9)
(8)
(6)

(6)
(8)

(8)
(8)
(8)
(8)
(7)

(7)

 $

— $

(2,340)$

233 $

4,780 $

— $

2,340 $

2,440 

17,176  

21,000  

—  

7,438  

—  

—  

—  

—  
—  

—  

—  

—  
—  
—  

—  
—  

—  
—  

—  
—  

—  
—  

—  

—  

(134) 

—  
—  
—  

—  
—  

—  

—  

—  

—  

—  
—  

—  

—  

—  

—  

—  

(2,363) 
(128) 

(980) 

—  

110  
(359) 
—  

1,035  
110  

5,300  
(57) 

7,950  
(23) 

8,390  
(12,018) 

(1,010) 

—  

—  

—  
(140) 
(46) 

1,520  
22  

3,180  

—  

—  

—  

168  
(2) 

(32) 

—  

6,006  

(2,167) 

—  

(139) 
—  

—  

—  
—  

—  

—  

—  

—  

—  

—  

—  
—  
—  

—  
—  

—  
—  
—  
—  
(741) 

(4) 

(5) 
(92) 

(536) 

(9,762) 
462  

(980) 

370  

(148) 

(255) 

(4,098) 

—  

170  
8,772  
—  

8,200  
(94) 

(450) 
(61) 
300  
310  
891  

—  

(1,490) 

191

1,175  

3,595  

438  

250  
1,367  

269  

115  

—  
41  
1,270  

2  
2,391  

—  
1,980  

3,721  
1,226  

11,152  
424  

9  

—  

—  

—  
—  
1,669  

345  
406  

953  

3,265  

—  

357  

108  
10  

608  

—  

394  

24  

74  
132  

3,103  

—  
1,446  

—  

—  

181  

493  

6  

69  

73  
4,988  
875  

219  
1,463  

—  
935  
2,317  
—  
—  

—  

10,928  

27,755  

9,745  
12,080  

10,610  

1,161  

350  
2,580  
—  

—  
17,848  

14,900  
21,486  

45,460  
9,740  

39,060  
12,002  

—  

—  

—  

—  
9,500  
14,350  

13,520  
3,355  

5,090  

28,775  

12,240  

3,970  

992  
—  

8,339  

400  

7,440  

432  

630  
200  

22,624  

13,100  
11,733  

1,000  

46  

—  
29  

—  

—  

110  
—  
8,924  

3,010  
159  

5,300  
57  

7,950  
5,299  

8,390  
16  

1,010  

—  

134  

—  
200  
46  

1,520  
4,001  

3,180  

71  

—  

—  

168  
402  

—  

—  

4  

—  
2,787  

533  

1,942  
1,557  

—  

—  

4,770  

1,746  

3,880  

3,860  

746  

1,470  
65,748  
7,506  

210  
15,100  

10,380  
7,477  
13,090  
780  
6,450  

3,809  

4  

19  

238  

—  

170  
8,772  
29  

8,200  
41  

—  
61  
300  
310  
891  

6,970  

—  

275  

2,363  
1,328  

980  

24  

—  
680  
636  

—  
2,300  

—  
2,521  

—  
23  

—  
12,018  

1,010  

—  

134  

—  
140  
996  

—  
3,356  

—  

3,864  

—  

31  

—  
402  

400  

7,440  

436  

630  
292  

536  

9,762  
4,400  

980  

—  

148  

255  

4,098  

45  

—  
—  
1,282  

—  
3,023  

450  
1,141  
—  
—  
7,341  

1,490  

7,104 

27,801 

7,163 

7,382 
10,781 

9,630 

1,137 

460 
1,900 
8,288 

3,010 
15,707 

20,200 
19,022 

53,410 
15,016 

47,450 
— 

— 

— 

— 

— 
9,560 
13,400 

15,040 
4,000 

8,270 

24,982 

12,240 

3,939 

1,160 
— 

— 

— 

— 

— 

— 
2,695 

22,621 

5,280 
8,890 

20 

4,770 

1,602 

3,644 

— 

701 

1,640 
74,520 
6,253 

8,410 
12,118 

9,930 
6,397 
13,390 
1,090 
— 

9,289 

3,532  

11,871  

 
 
  
 
 
  
   
   
   
   
   
   
  
  
  
  
 
  
 
    
  
 
  
 
  
 
  
 
 
 
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
Table of Contents

Company
The MPI Group, LLC

Investment(1)(10)(11)

 9% Secured Debt
 Series A Preferred Units

 Warrants

 Member Units

Trantech Radiator Topco, LLC  12% Secured Debt

Vision Interests, Inc.

Ziegler's NYPD, LLC

Other controlled investments

Access Media Holdings, LLC

 Common Stock

 13% Secured Debt
 Series A Preferred Stock

 Common Stock

 6.5% Secured Debt
 12% Secured Debt

 14% Secured Debt

 Warrants

 Preferred Member Units

 10% PIK Secured Debt
 Preferred Member Units(12)

 Member Units

Analytical Systems Keco, LLC

 LIBOR Plus 10.00% (Floor 2.00%)  
 Preferred Member Units

ASC Interests, LLC

ATS Workholding, LLC

Bond-Coat, Inc.

 Warrants

 11% Secured Debt
 Member Units

 5% Secured Debt
 Preferred Member Units

 15% Secured Debt
 Common Stock

Brewer Crane Holdings, LLC

 LIBOR Plus 10.00% (Floor 1.00%)  
 Preferred Member Units

Bridge Capital Solutions

 13% Secured Debt

Corporation

CBT Nuggets, LLC
Centre Technologies

Holdings, LLC

Chamberlin Holding LLC

Charps, LLC

Copper Trail Fund Investments
Datacom, LLC

 Warrants

 13% Secured Debt

 Preferred Member Units

 Member Units
 LIBOR Plus 9.00% (Floor 2.00%)

 Preferred Member Units

 LIBOR Plus 10.00% (Floor 1.00%)  
 Member Units

 Member Units

 11.50% Secured Debt
 15% Secured Debt

 Preferred Member Units

 LP Interests (CTMH, LP)
 8.00% Secured Debt
 10.50% PIK Secured Debt

 Class A Preferred Member Units

 Class B Preferred Member Units

Digital Products Holdings LLC  LIBOR Plus 10.00% (Floor 1.00%)  

Garreco, LLC

 Preferred Member Units

 LIBOR Plus 8.00% (Floor 1.00%,
Ceiling 1.50%)
 Member Units

Gulf Manufacturing, LLC
Gulf Publishing Holdings, LLC  LIBOR Plus 9.50% (Floor 1.00%)

 Member Units

 12.5% Secured Debt

 Member Units

Harris Preston Fund Investments  LP Interests (2717 MH, L.P.)
Harrison Hydra-Gen, Ltd.
KBK Industries, LLC
J&J Services, Inc.

 Common Stock
 Member Units
 11.50% Secured Debt
 Preferred Stock

NAPCO Precast, LLC

NexRev LLC

 LIBOR Plus 8.50%
 Member Units

 11% Secured Debt
 Preferred Member Units

NRI Clinical Research, LLC

 LIBOR Plus 6.50% (Floor 1.50%)
 14% Secured Debt

NRP Jones, LLC

 Warrants

 Member Units

 12% Secured Debt
 Member Units

Amount
of
Interest,
Fees or
Dividends
Credited
to
Income(2) 
267  

Amount of
Realized
Gain/(Loss) 
—  

Amount of
Unrealized
Gain/(Loss) 
342  

 Geography 
(7)

December 31,
2018
Fair Value  
2,582  

Gross
Additions(3) 
342  

Gross
Reductions(4) 
—  

December 31,
2019
Fair Value  
2,924 

(7)

(7)

(7)
(7)

(7)
(9)

(9)

(9)
(8)

(8)

(8)

(8)

(8)

(5)

(5)

(5)
(8)

(8)

(8)
(8)

(8)
(9)

(9)
(8)

(8)
(9)

(9)

(6)

(6)

(6)

(6)
(9)

(8)

(8)
(8)

(8)

(8)
(5)

(5)

(5)
(9)
(8)

(8)

(8)

(8)
(5)

(5)

(8)

(8)
(8)
(8)
(8)

(8)
(8)
(8)
(5)
(7)

(7)
(8)

(8)
(8)

(8)
(9)

(9)

(9)

(9)
(5)

(5)

(8) 

—  

—  
—  

—  
—  

—  

—  
—  

—  

—  

—  

—  

—  

—  

—  
—  

—  

—  
—  

—  
—  

—  
—  

—  
—  

—  

—  

—  

—  

—  
—  

—  

—  
—  

—  

—  
—  

—  

—  
—  
—  

—  

—  

—  
—  

—  

—  

—  
—  
—  
—  

—  
—  
—  
—  
—  

—  
—  

—  
—  

—  
—  

—  

—  

—  
—  

—  

(440) 

—  

(839) 
—  

—  
—  

349  

129  
(2) 

—  

—  

—  

20  

(2,171) 

—  

—  
—  

—  

—  
—  

(80) 
(28) 

—  

—  

137  
981  

68  
271  

—  

—  
72  

67  

402  

—  

—  

50  

—  

—  
448  

—  

—  
201  

—  
364  

(2,787) 
(229) 

(1,070) 
—  

—  

—  
1,853  

—  
1,167  

120  

—  

1,480  

(520) 

(6) 

—  
(10,760) 

—  

—  
125  

5,100  

403  
(83) 

—  

4,650  
—  
(75) 

361  

—  

—  
(1,025) 

(4,327) 

—  

(30) 
(4,260) 
—  
—  

(1,700) 
329  
(100) 
6,860  
—  

—  
(11) 

770  
—  

(1,580) 
—  

(44) 

570  

2,510  
—  

(1,250) 

—  

101  

75  
300  

1,572  

120  
2,474  

1,659  

45  
675  

175  

579  
5  
—  

—  

—  

—  
2,944  

200  

472  

—  
671  
25  
1,619  

—  
—  
247  
1,923  
531  

—  
123  

3,063  
1,956  

195  
11  

971  

—  

32  
776  

323  

440  

—  

2,479  
—  

—  
2,153  

3,740  

280  
1,000  

425  

2,750  

—  

1,249  

8,558  

(284) 

—  
—  

—  

—  
1,622  

1,370  
4,390  

3,726  
11,596  

9,370  
9,467  

4,280  

6,221  

4,020  

1,000  

1,000  
61,610  

8  

—  

—  
10,302  

4,655  
—  

349  

129  
2  

200  

—  

—  

20  

—  

—  

—  
5,245  

3,200  

316  
17  

—  
225  

—  
106  

—  
18  

—  

1,576  

—  

2  

—  
—  

—  

12,136  

—  
20,028  

18,940  

732  
11,888  

—  

2,270  
872  
1,690  

9,786  

—  

—  
25,511  

8,466  

5,099  

2,590  
11,690  
—  
12,594  

4,120  
1,133  
8,070  
8,610  
—  

—  
11,475  

13,990  
17,288  

7,890  
—  

6,685  

660  

2,478  
6,376  

5,960  

5,840  
174  

5,100  

718  
1,695  

2,000  

4,650  
—  
—  

361  

—  

—  
87  

1,035  

18  

—  
—  
320  
28  

—  
2,524  
—  
6,860  
17,430  

7,160  
11  

770  
835  

—  
200  

44  

570  

2,510  
—  

—  

448  

—  

839  
1,200  

—  
125  

—  

—  
2  

—  

—  

—  

—  

2,171  

—  

—  
35  

—  

—  
—  

80  
94  

2,787  
229  

1,070  
496  

—  

—  

520  

6  

—  
10,760  

—  

—  
2,429  

—  

—  
13,583  

—  

—  
—  
75  

5  

—  

—  
7,146  

4,327  

602  

30  
4,260  
40  
129  

1,700  
500  
100  
—  
—  

—  
11,486  

—  
654  

1,580  
200  

748  

—  

—  
—  

1,250  

— 

— 

1,640 
9,102 

4,655 
2,028 

4,089 

409 
1,000 

625 

2,750 

— 

1,269 

6,387 

(284)

— 
5,210 

3,200 

316 
1,639 

1,290 
4,521 

939 
11,473 

8,300 
8,989 

4,280 

7,797 

3,500 

996 

1,000 
50,850 

12,136 

5,840 
17,773 

24,040 

1,450 
— 

2,000 

6,920 
872 
1,615 

10,142 

— 

— 
18,452 

5,174 

4,515 

2,560 
7,430 
280 
12,493 

2,420 
3,157 
7,970 
15,470 
17,430 

7,160 
— 

14,760 
17,469 

6,310 
— 

5,981 

1,230 

4,988 
6,376 

4,710 

 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
 
  
   
   
   
   
   
   
  
  
  
   
   
   
   
   
   
   
 
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
192

Table of Contents

Company
NuStep, LLC

Investment(1)(10)(11)

 12% Secured Debt
 Preferred Member Units

 Common Stock
OMi Holdings, Inc.
Pegasus Research Group, LLC  Member Units
River Aggregates, LLC

 Zero Coupon Secured Debt
 Member Units

 Member Units

 12%, Secured Debt
 12%, Secured Debt

 Preferred Member Units

Tedder Industries, LLC

Other
Amounts related to investments

transferred to or from other 1940
Act classification during the
period

Total Control investments

Amount
of
Interest,
Fees or
Dividends
Credited
to
Income(2) 
2,556  

Amount of
Realized
Gain/(Loss) 
—  

Amount of
Unrealized
Gain/(Loss) 
—  

December 31,
2018
Fair Value  
20,458  

Gross
Additions(3) 
44  

Gross
Reductions(4) 
799  

December 31,
2019
Fair Value  
19,703 

—  
—  
—  
—  

—  

—  
—  

—  

—  

—  
930  
490  
—  

380  

239  
—  

—  

—  

—  
1,920  
—  
—  

—  

—  
69  

2,021  

—  

10,200  
16,020  
7,680  
722  

4,610  

2,930  
480  

16,246  

7,476  

—  
930  
490  
—  

380  

239  
1,200  

26  

660  

—  
—  
—  
—  

—  

—  
1,040  

—  

—  

10,200 
16,950 
8,170 
722 

4,990 

3,169 
640 

16,272 

8,136 

 Geography 
(5)

(5)
(8)
(8)
(8)

(8)

(8)
(9)

(9)

(9)

(187) 
4,797 $

 $

260  
(980)$

(133) 
92,414 $

5,809  
1,004,993 $

—  
219,523 $

—  
185,986 $

— 
1,032,721 

193

 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
 
  
   
   
   
   
   
   
  
  
 
 
  
  
 
 
Table of Contents

Company
Affiliate Investments

AFG Capital Group, LLC

Investment(1)(10)(11)

 Geography 

Amount of
Realized
Gain/(Loss) 

Amount of
Unrealized
Gain/(Loss) 

Amount
of
Interest,
Fee or
Dividends
Credited
to
Income(2) 

December 31,
2018
Fair Value  

Gross
Additions(3) 

Gross
Reductions(4) 

December 31,
2019
Fair Value  

 Warrants
 10% Secured Debt

 Preferred Member Units

American Trailer Rental

 LIBOR Plus 7.25% (Floor 1.00%)

Group LLC

BBB Tank Services, LLC

 Member Units

 LIBOR Plus 11% (Floor 1.00%)
 Preferred Member Units

 Member Units

Boccella Precast Products LLC  LIBOR Plus 12% (Floor 1.00%)

Boss Industries, LLC
Buca C, LLC

CAI Software LLC

Chandler Signs Holdings, LLC

Charlotte Russe, Inc

Condit Exhibits, LLC
Congruent Credit

Opportunities Funds

Copper Trail Fund Investments

Dos Rios Partners

East Teak Fine Hardwoods, Inc.
EIG Fund Investments

Freeport Financial Funds

Fuse, LLC

 Member Units

 Preferred Member Units
 LIBOR Plus 9.25% (Floor 1.00%)
 Preferred Member Units

 11% Secured Debt
 Member Units

 12% Secured Debt
 Class A Units

 8.50% Secured Debt
 Common Stock

 Member Units
 LP Interests (Fund II)
 LP Interests (Fund III)
 LP Interests (Copper Trail Energy
Fund I, LP)
 LP Interests (Dos Rios
Partners, LP)
 LP Interests (Dos Rios Partners —
A, LP)
 Common Stock
 LP Interests (EIG Global Private
Debt fund-A, L.P.)
 LP Interests (Freeport Financial
SBIC Fund LP)
 LP Interests (Freeport First Lien
Loan Fund III LP)
 12% Secured Debt
 Common Stock

Harris Preston Fund Investments  LP Interests (HPEP 3, L.P.)
Hawk Ridge Systems, LLC

 LIBOR Plus 6.00% (Floor 1.00%)
 11.0% Secured Debt

Houston Plating and

Coatings, LLC

I-45 SLF LLC
L.F. Manufacturing
Holdings, LLC

OnAsset Intelligence, Inc.

PCI Holding Company, Inc.

Rocaceia, LLC (Quality Lease
and Rental Holdings, LLC)
Salado Stone Holdings, LLC
SI East, LLC

Slick Innovations, LLC

 Preferred Member Units

 Preferred Member Units

 8% Unsecured Convertible Debt

 Member Units

 Member Units
 Preferred Member Units

 Member Units

 12% PIK Secured Debt
 10% PIK Secured Debt

 Preferred Stock

 Warrants

 12% Current Secured Debt
 Preferred Stock

 Preferred Stock

 12% Secured Debt
 Preferred Member Units
 Class A Preferred Units
 9.50% Current, Secured Debt
 Preferred Member Units

 14% Current, Secured Debt
 Warrants

 Common Stock

UniTek Global Services, Inc.

 LIBOR Plus 6.50% (Floor 1.00%)
 Preferred Stock

 Preferred Stock

 Preferred Stock

 Preferred Stock

 Common Stock

Universal Wellhead Services

Holdings, LLC

 Preferred Member Units
 Member Units

(8)

(8)

(8)

(5)

(5)
(8)

(8)

(8)
(6)

(6)
(5)
(7)

(7)
(6)

(6)
(8)

(8)
(9)

(9)
(9)
(8)
(8)

(9)

(8)

(8)
(7)

(8)

(5)

(5)
(9)

(9)
(8)
(9)

(9)

(9)

(9)

(8)

(8)
(8)

(8)

(8)
(8)

(8)

(8)

(8)
(9)

(9)

(9)
(8)
(8)
(8)
(7)

(7)
(6)

(6)

(6)
(6)

(6)

(6)

(6)

(6)

(6)
(8)
(8)

 $

781 $

—  

—  

—  

—  
—  

—  

—  
—  

—  
3,771  
—  

—  
—  

—  
—  

—  
(7,012) 

—  
1,850  
—  
—  

37  

—  

—  
—  

8  

—  

—  
—  

—  
—  
—  

—  

—  

—  

—  

—  
—  

—  

—  
—  

—  

—  

—  
—  

—  

—  
—  
—  
—  
—  

—  
—  

—  

—  
—  

—  

—  

—  

—  

—  
—  
—  

194

— $

1,040  

1,200  

8,729  

2,760  
865  

18  

60  
475  

1,190  
—  
43  

270  
34  

2,493  
47  

620  
4,003  

—  
—  
—  
—  

—  

—  

—  
—  

283  

379  

799  
1,939  

256  
741  
600  

34  

640  

40  

540  

2,000  
800  

81  

—  
731  

5  

—  

—  
98  

(691)$

—  

1,200  

— $

66  

(40) 

950 $

—  

3,980  

182  

2,655  

20,312  

2,760  
—  

—  

60  
(75) 

1,094  
(3,930) 
(187) 

—  
(34) 

2,493  
(24) 

620  
4,003  

—  
(1,850) 
—  
(195) 

—  
680  

18  

—  
2,187  

236  
611  
2,260  

270  
1,239  

31  
581  

39  
—  

—  
132  
—  
1,447  

5,780  
3,833  

113  

230  
15,724  

5,080  
6,176  
19,038  

4,431  
10,880  

2,717  
4,546  

2,120  
3,930  

—  
1,950  
855  
17,468  

(310) 

583  

4,170  

(122) 

(38) 
(160) 

—  

—  
16  

7,153  

2,271  
560  

—  

137  

505  

—  

5,399  

1,059  
119  

—  
—  
26  

10,980  
—  

—  
1,733  
—  

1,460  

14,300  

379  

(84) 
—  

—  
—  
—  

(34) 

640  

40  

540  

1,884  
(2,020) 

—  

(10) 
—  

—  

—  

—  
—  

2,340  

870  
165  
—  
(470) 
275  

2,200  
—  

109  

380  
22  

(5,240) 

306  

1,080  

—  

(1,420) 
(345) 
(2,330) 

375  

—  

243  

544  
3,204  

11  

—  
731  

5  

—  

—  
1,488  

—  

—  
—  
—  
—  
3,648  

460  
983  

—  

1,048  
260  

511  

339  

53  

629  

—  
195  
—  

7,260  

380  

3,720  

8,330  
15,627  

—  

2,060  
5,743  

53  

—  

—  
11,908  

340  

2,340  

3,480  
250  
—  
1,040  
34,885  

6,000  
6,959  

181  

700  
2,969  

7,413  

1,637  

870  
165  
—  
—  
365  

2,200  
679  

109  

380  
23  

511  

645  

—  

1,889  

3,038  

1,420  
950  
2,330  

629  

—  
195  
—  

950 $

202  

—  

— 

838 

5,180 

1,954  

27,087 

—  
—  

—  

—  
2,955  

—  
6,176  
287  

—  
1,754  

—  
4,593  

—  
7,933  

—  
1,950  
—  
3,553  

8,540 
4,698 

131 

290 
13,244 

6,270 
— 
18,794 

4,701 
9,160 

5,210 
— 

2,740 
— 

— 
— 
855 
13,915 

1,808  

2,362 

120  

38  
160  

68  

—  

2,083  
—  

—  
—  
—  

934  

—  

—  

—  

—  
2,020  

—  

10  
—  

—  

—  

—  
650  

—  

—  
415  
—  
470  
2,287  

—  
1,441  

—  

—  
30  

5,240  

—  

—  

—  

1,420  
345  
2,330  

7,033 

2,233 
400 

720 

5,778 

9,696 
1,939 

256 
2,474 
600 

13,400 

7,900 

420 

4,260 

10,330 
14,407 

81 

2,050 
6,474 

58 

— 

— 
11,356 

2,680 

4,350 
— 
— 
570 
32,963 

8,200 
6,197 

290 

1,080 
2,962 

2,684 

2,282 

1,889 

3,667 

— 
800 
— 

 
 
  
 
 
  
   
   
   
   
   
   
  
  
  
  
 
  
 
    
  
 
  
 
  
 
  
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
Table of Contents

Company
Volusion, LLC

Investment(1)(10)(11)

 11.50% Secured Debt
 8% Unsecured Convertible Debt

 Preferred Member Units

 Warrants

 Geography 
(8)

(8)

(8)

(8)

Amount
of
Interest,
Fee or
Dividends
Credited
to
Income(2) 
3,132  

Amount of
Realized
Gain/(Loss) 
—  

Amount of
Unrealized
Gain/(Loss) 
(810) 

December 31,
2018
Fair Value  
18,407  

Gross
Additions(3) 
1,755  

Gross
Reductions(4) 
810  

December 31,
2019
Fair Value  
19,352 

—  

—  

—  

(118) 

—  

(1,740) 

31  

—  

—  

297  

14,000  

1,890  

112  

—  

—  

118  

—  

1,740  

291 

14,000 

150 

Other
Amounts related to investments

transferred to or from other 1940
Act classification during the
period

Total Affiliate investments

—  
(565)$

(415) 
990 $

1,030  
34,732 $

19,439  
359,890 $

—  
46,680 $

—  
56,844 $

— 
330,287 

 $

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments. 

Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For
investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at
period end is included in "Amounts from investments transferred from other 1940 Act classifications during the period." 

Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more
existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an
existing portfolio company into this category and out of a different category. 

Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities.
Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category
and into a different category. 

Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was
$245,549. This represented 16.0% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $51,101. This represented
3.3% of net assets as of December 31, 2019. 

Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region
was $27,956. This represented 1.8% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $54,935. This represented
3.6% of net assets as of December 31, 2019. 

Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region
was $52,200. This represented 3.4% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $65,058. This represented
4.2% of net assets as of December 31, 2019. 

Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region
was $415,344. This represented 27.0% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $113,930. This
represented 7.4% of net assets as of December 31, 2019. 

Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2019 for control investments located in this region was
$291,672. This represented 19.0% of net assets as of December 31, 2019. The fair value as of December 31, 2019 for affiliate investments located in this region was $45,263. This represented
2.9% of net assets as of December 31, 2019. 

All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities," unless otherwise noted. 

This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the
schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using
significant unobservable inputs. 

(12)

Investment has an unfunded commitment as of December 31, 2019 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments.

195

 
 
 
  
 
  
 
  
 
  
  
 
 
  
   
   
   
   
   
   
  
  
 
 
  
  
 
 
Table of Contents

Company
Majority-owned investments

Café Brazil, LLC
California Splendor

Holdings LLC

Clad-Rex Steel, LLC

CMS Minerals Investments
Direct Marketing Solutions, Inc.

Schedule 12-14

    MAIN STREET CAPITAL CORPORATION
Consolidated Schedule of Investments in and Advances to Affiliates
December 31, 2018
(dollars in thousands) 

Investment(1)(10)(11)

 Geography 

Amount of
Realized
Gain/(Loss) 

Amount of
Unrealized
Gain/(Loss) 

Amount
of
Interest,
Fees or
Dividends
Credited
to
Income(2) 

December 31,
2017
Fair Value  

Gross
Additions(3) 

Gross
Reductions(4) 

December 31,
2018
Fair Value  

 Member Units

LIBOR Plus 8.00% (Floor 1.00%)
 LIBOR Plus 10.00% (Floor 1.00%)  
 Preferred Member Units
 LIBOR Plus 9.50% (Floor 1.00%)
 Member Units
 10% Secured Debt
 Member Units
 Member Units
 LIBOR Plus 11.00% (Floor 1.00%)  
 Preferred Stock

Gamber-Johnson Holdings, LLC  LIBOR Plus 7.50% (Floor 2.00%)

GRT Rubber Technologies LLC  LIBOR Plus 7.00%

 Member Units

 Member Units
 Member Units

Harborside Holdings, LLC
Harris Preston Fund Investments  LP Interests (2717 MH, L.P.)
Hydratec, Inc.
IDX Broker, LLC

 Common Stock
 11.5% Secured Debt
 Preferred Member Units

Jensen Jewelers of Idaho, LLC  Prime Plus 6.75% (Floor 2.00%)

Lamb Ventures, LLC

Mid-Columbia Lumber

Products, LLC

 Member Units
 11% Secured Debt
 Preferred Equity
 Member Units
 9.5% Secured Debt
 Member Units

10% Secured Debt
 12% Secured Debt
 Member Units
 9.5% Secured Debt
 Member Units
 Member Units

MSC Adviser I, LLC
Mystic Logistics Holdings, LLC  12% Secured Debt

NexRev LLC

NRP Jones, LLC

PPL RVs, Inc.

Principle Environmental, LLC

(d/b.a TruHorizon
Environmental Solutions)

Quality Lease Service, LLC

Tedder Industries, LLC

The MPI Group, LLC

Uvalco Supply, LLC

Vision Interests, Inc.

Ziegler's NYPD, LLC

 Common Stock
 11% Secured Debt
 Preferred Member Units
 12% Secured Debt
 Member Units
 LIBOR Plus 7.00% (Floor 0.50%)
 Common Stock

13% Secured Debt
 Preferred Member Units
 Warrants
 Zero Coupon Secured Debt
 Member Units
 12%, Secured Debt
 12%, Secured Debt

 Member Units
 9% Secured Debt
 Series A Preferred Units
 Warrants
 Member Units
 9% Secured Debt
 Member Units
 13% Secured Debt
 Series A Preferred Stock
 Common Stock
 6.5% Secured Debt
 12% Secured Debt
 14% Secured Debt
 Warrants

(8)

(9)

(9)

(9)
(5)

(5)

(5)

(5)
(9)
(9)

(9)
(5)

(5)
(8)

(8)
(8)
(8)
(9)
(9)

(9)
(9)

(9)
(8)

(8)

(8)

(8)

(8)

(9)

(9)

(9)

(9)

(9)
(8)
(6)

(6)
(8)

(8)
(5)

(5)
(8)

(8)

(8)

(8)

(8)
(7)

(7)
(9)
(9)

(9)
(7)

(7)

(7)

(7)
(8)

(8)
(9)

(9)

(9)
(8)

(8)

(8)

(8)

 $

— $

(120)$

291 $

4,900 $

— $

120 $

4,780 

—  

—  

—  
—  

—  

—  

—  
—  
—  

—  
—  

—  
—  

—  
—  
—  
7,922  
—  

—  
—  

—  
—  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  

—  
—  

—  
—  

—  
—  

—  

—  

—  

—  
—  

—  
—  
—  

—  
—  

—  

—  

—  
—  

301  
—  

—  

—  
—  

—  

—  

—  

—  

—  

(1,030) 
(33) 

1,110  

—  

70  
921  
—  

6,500  
(57) 

22,090  
(30) 

17,090  
—  
93  
(7,905) 
(47) 

1,860  
(20) 

(10) 
(18) 

—  

650  

—  

110  

—  

—  

1,689  

—  

180  
23,980  
—  

(6,610) 
—  

1,010  
—  

2,710  
(35) 

(2,060) 

(51) 

1,600  

130  
(500) 

(2,303) 
—  
—  

—  
171  

440  

—  

90  
—  

(301) 
—  

740  

280  
2  

—  

—  

—  

1,025  

2,990  

178  
1,517  

500  

117  

—  
117  
2,502  

—  
2,579  

1,797  
1,199  

2,876  
—  
—  
332  
1,765  

276  
450  

250  
976  

—  

—  

42  

53  

182  

491  

6  

74  

57  
3,822  
969  

—  
1,829  

60  
776  

—  
1,487  

3  

1,037  

1,482  

—  
—  

—  
20  
1,010  

—  
268  

—  

—  

190  
7  

898  
364  

—  

—  
68  

47  

390  

—  

—  

—  

—  
13,280  

9,500  

1,183  

280  
2,392  
—  

—  
23,400  

23,370  
11,603  

21,970  
9,400  
536  
15,000  
15,250  

11,660  
3,955  

5,100  
9,942  

400  

6,790  

432  

520  

1,390  

3,863  

1,575  

791  

1,290  
41,768  
7,696  

6,820  
—  

—  
6,376  

3,250  
16,100  

12,440  

7,477  

11,490  

650  
6,950  

4,938  
—  
—  

—  
2,410  

—  

—  

2,389  
348  

3,880  
2,797  

3,000  

—  
996  

300  

2,750  

—  

21,128  

27,755  

12,500  
33  

1,110  

—  

70  
921  
18,631  

14,900  
57  

22,090  
30  

17,090  
100  
597  
—  
47  

1,860  
20  

—  
218  

—  

650  

—  

110  

356  

17  

2,285  

—  

180  
23,980  
42  

—  
17,288  

7,890  
—  

2,710  
35  

—  

51  

1,600  

130  
—  

1,174  
480  
16,246  

7,476  
172  

440  

—  

90  
—  

—  
17  

740  

280  
4  

125  

—  

—  

10,200  

—  

2,755  
1,233  

—  

22  

—  
733  
783  

—  
1,971  

—  
1,893  

—  
—  
—  
15,000  
947  

—  
620  

10  
1,821  

—  

—  

—  

—  

—  

—  

—  

45  

—  
—  
232  

6,610  
—  

—  
—  

—  
1,035  

2,060  

51  

—  

—  
500  

2,303  
—  
—  

—  
—  

—  

—  

—  
348  

3,880  
661  

—  

—  
—  

—  

—  

—  

10,928 

27,755 

9,745 
12,080 

10,610 

1,161 

350 
2,580 
17,848 

14,900 
21,486 

45,460 
9,740 

39,060 
9,500 
1,133 
— 
14,350 

13,520 
3,355 

5,090 
8,339 

400 

7,440 

432 

630 

1,746 

3,880 

3,860 

746 

1,470 
65,748 
7,506 

210 
17,288 

7,890 
6,376 

5,960 
15,100 

10,380 

7,477 

13,090 

780 
6,450 

3,809 
480 
16,246 

7,476 
2,582 

440 

— 

2,479 
— 

— 
2,153 

3,740 

280 
1,000 

425 

2,750 

— 

 
 
  
 
 
  
   
   
   
   
   
   
  
  
  
  
 
  
 
    
  
 
  
 
  
 
  
 
 
 
 
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 Preferred Member Units

(8)

—  

(1,970) 

—  

3,220  

—  

1,971  

1,249 

196

 
  
  
  
  
 
  
 
    
  
 
  
 
  
 
  
 
 
Table of Contents

Company
Other controlled investments

Access Media Holdings, LLC

ASC Interests, LLC

ATS Workholding, LLC

Bond-Coat, Inc.

Brewer Crane Holdings, LLC

CBT Nuggets, LLC
Chamberlin Holding LLC

Charps, LLC

Copper Trail Fund Investments

Datacom, LLC

Investment(1)(10)(11)

 Geography 

Amount of
Realized
Gain/(Loss) 

Amount of
Unrealized
Gain/(Loss) 

Amount
of
Interest,
Fees or
Dividends
Credited
to
Income(2) 

December 31,
2017
Fair Value  

Gross
Additions(3) 

Gross
Reductions(4) 

December 31,
2018
Fair Value  

 10% PIK Secured Debt
 Preferred Member Units (12)
 Member Units
 11% Secured Debt
 Member Units
 5% Secured Debt
 Preferred Member Units
 12% Secured Debt
 Common Stock
 LIBOR Plus 10.00% (Floor 1.00%)  
 Preferred Member Units
 Member Units
 LIBOR Plus 10.00% (Floor 1.00%)  
 Member Units
 Member Units
 LIBOR Plus 7.00% (Floor 1.00%)
 12% Secured Debt
 Preferred Member Units
 LP Interests (CTMH, LP)
 LP Interests (Copper Trail Energy
Fund I, LP)
 8% Secured Debt
 10.50% PIK Secured Debt
 Class A Preferred Member Units
 Class B Preferred Member Units

 Preferred Member Units
 LIBOR Plus 8.00% (Floor 1.00%,
Ceiling 1.50%)
 Member Units
 13% Secured Debt
 Preferred Stock
 Common Stock
 Warrants
 Member Units

Digital Products Holdings LLC  LIBOR Plus 10.00% (Floor 1.00%)  

Garreco, LLC

Guerdon Modular Holdings, Inc.

Gulf Manufacturing, LLC
Gulf Publishing Holdings, LLC  LIBOR Plus 9.50% (Floor 1.00%)

Harrison Hydra-Gen, Ltd.
HW Temps LLC

KBK Industries, LLC

Kickhaefer Manufacturing

Company, LLC

 12.5% Secured Debt
 Member Units
 Common Stock
 LIBOR Plus 13.00% (Floor 1.00%)  
 Preferred Member Units
 10% Secured Debt
 12.5% Secured Debt
 Member Units

11.5% Secured Debt
 11.5% Secured Debt
 Member Units
 9.0% Secured Debt
 Member Units

Marine Shelters Holdings, LLC  12% PIK Secured Debt
 Preferred Member Units

Market Force Information, LLC  LIBOR Plus 7.00% (Floor 1.00%)

NAPCO Precast, LLC

MH Corbin Holding LLC

NRI Clinical Research, LLC

LIBOR Plus 11.00% (Floor 1.00%)
 Member Units
 10% Current/3% PIK Secured Debt  
 Preferred Member Units
 LIBOR Plus 8.50%
 Member Units
 14% Secured Debt
 Warrants
 Member Units
 12% Secured Debt
 Preferred Member Units
OMi Holdings, Inc.
 Common Stock
Pegasus Research Group, LLC  Member Units
River Aggregates, LLC

NuStep, LLC

 Zero Coupon Secured Debt
 Member Units
 Member Units

SoftTouch Medical Holdings LLC LIBOR Plus 9.00% (Floor 1.00%)

 Member Units

Other

(5)

(5)

(5)
(8)

(8)
(9)

(9)
(8)

(8)
(9)

(9)
(9)
(8)

(8)

(8)
(5)

(5)

(5)
(9)

(9)
(8)

(8)

(8)

(8)
(5)

(5)

(8)

(8)
(9)

(9)

(9)

(9)
(8)
(8)

(8)

(8)
(8)
(6)

(6)
(5)

(5)

(5)

(5)

(5)

(5)

(5)

(5)
(8)

(8)
(9)
(9)

(9)
(5)

(5)
(8)

(8)
(9)

(9)

(9)
(5)

(5)
(8)
(8)
(8)

(8)

(8)
(7)

(7)

17,150  

—  

—  

1,233  

8,592  

1,517  

—  

—  

—  
—  

—  
—  

—  
—  

—  
—  

—  
—  
—  

—  

—  
—  

—  

—  
—  

—  
—  

—  

—  

—  
—  

—  

—  

—  
—  

—  

—  

—  
—  
—  

—  

—  
—  
—  

—  
—  

—  

—  

—  

—  

—  

—  

—  
(3,361) 

(5,352) 
—  
—  

—  
—  

—  
—  

—  
—  

—  

—  
—  

—  
—  
—  
—  

—  

—  
—  

(8,592) 

(1,517) 

—  
—  

(160) 
(117) 

—  
229  

—  
—  

—  
(27,950) 
—  

25  

—  

—  
199  

—  
334  

—  
1,482  

—  
1,274  

117  
11,395  
2,645  

7,500  

2,349  

—  
45  

—  
1,795  

1,530  
3,249  

3,726  
11,596  

9,370  
—  

—  
89,560  
—  

—  

—  
—  

—  
—  

83  

1,620  
—  

675  
(110) 

(1,493) 

(843) 

—  
—  

—  

—  

650  
(570) 

—  

—  

—  
1,630  
—  

—  

(720) 
4,490  
—  

2  
(3) 

(33) 

4,190  

—  

—  

—  

—  

—  
3,078  

5,352  
—  
—  

(1,600) 
(387) 

(5,000) 
(25) 

2,320  
140  

160  

(22) 
—  

—  
1,910  
(2,630) 
(28) 

—  

370  
(30) 

2,034  

18,225  

250  
22  

57  
33  

330  

—  

—  
2,713  

150  

642  

—  
1,312  

—  

—  

—  
1,227  
11  

1,634  

—  
180  
1,431  

170  
9  

546  

842  

33  

1,125  

—  

63  

—  
—  

—  
26  
3,121  

—  
1,187  

140  
1,277  

1,862  
982  

—  

—  
2,550  

—  
1,608  
—  
43  

—  

—  
119  

865  

650  
—  

2,500  
1,575  

11,110  

730  

—  
—  

—  

5,443  

1,940  
10,632  

—  

—  

—  
10,060  
80  

12,703  

4,840  
3,580  
9,918  

3,940  
375  

5,900  

4,420  

—  

—  

—  

—  

—  
—  

—  
—  
23,143  

14,700  
12,526  

6,000  
11,475  

11,670  
4,265  

500  

2,500  
20,420  

10,200  
14,110  
10,310  
707  

4,610  

2,559  
7,140  

10,089  

5,171  

(5,159) 

—  
—  

—  
1,258  

—  
—  

—  
9,839  

4,280  
—  
21,425  

18,940  

732  
1,600  

163  

1,620  
872  

1,944  
225  

169  

113  

—  
26,171  

8,800  

18  

650  
2,340  

—  

—  

—  
1,630  
160  

25  

—  
4,490  
20  

2  
3  

33  

4,190  

1,045  

27,730  

12,240  

3,970  

992  
3,361  

5,352  
680  
41  

—  
119  

—  
25  

2,320  
3,035  

160  

152  
38  

—  
1,910  
—  
43  

—  

371  
30  

—  

—  
173  

160  
117  

—  
—  

—  
372  

—  
27,950  
1,397  

—  

—  
1,600  

6,500  

—  
—  

274  
110  

1,493  

843  

—  
660  

334  

362  

—  
970  

—  

—  

—  
—  
240  

134  

720  
—  
—  

—  
378  

5,933  

—  

—  

—  

—  

—  

—  
3,361  

5,352  
480  
560  

1,600  
912  

5,000  
25  

—  
615  

—  

174  
—  

—  
—  
2,630  
28  

—  

—  
7,170  

10,089  

8,558 

(284)

— 
1,622 

1,370 
4,390 

3,726 
11,596 

9,370 
9,467 

4,280 
61,610 
20,028 

18,940 

732 
— 

11,888 

2,270 
872 

4,170 
1,690 

9,786 

— 

— 
25,511 

8,466 

5,099 

2,590 
12,002 

— 

— 

— 
11,690 
— 

12,594 

4,120 
8,070 
9,938 

3,942 
— 

— 

8,610 

1,045 

27,730 

12,240 

3,970 

992 
— 

— 
200 
22,624 

13,100 
11,733 

1,000 
11,475 

13,990 
6,685 

660 

2,478 
20,458 

10,200 
16,020 
7,680 
722 

4,610 

2,930 
— 

— 

 
 
  
 
 
  
   
   
   
   
   
   
  
  
  
  
 
  
 
    
  
 
  
 
  
 
  
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
 
  
   
   
   
   
   
   
  
Amounts related to investments

transferred to or from other 1940
Act classification during the
period

Total Control investments

—  
4,681 $

—  
37,826 $

25  
85,853 $

(10,632) 
750,706 $

—  
400,284 $

—  
156,629 $

— 
1,004,993 

 $

197

 
 
 
 
  
  
 
 
Table of Contents

Company
Affiliate Investments

AFG Capital Group, LLC

Barfly Ventures, LLC

BBB Tank Services, LLC

Investment(1)(10)(11)

 Geography 

Amount of
Realized
Gain/(Loss) 

Amount of
Unrealized
Gain/(Loss) 

Amount
of
Interest,
Fee or
Dividends
Credited
to
Income(2) 

December 31,
2017
Fair Value  

Gross
Additions(3) 

Gross
Reductions(4) 

December 31,
2018
Fair Value  

 $

— $

90 $

— $

 Warrants
 Preferred Member Units
 12% Secured Debt
 Options
 Warrants
 LIBOR Plus 10% (Floor 1.00%)
 LIBOR Plus 11% (Floor 1.00%)
 Preferred Member Units
 Member Units

Boccella Precast Products LLC  LIBOR Plus 10% (Floor 1.00%)

Boss Industries, LLC
Bridge Capital Solutions

Corporation

Buca C, LLC

CAI Software LLC

 Member Units
 Preferred Member Units

13% Secured Debt
 Warrants
 13% Secured Debt
 Preferred Member Units
 LIBOR Plus 9.25% (Floor 1.00%)
 Preferred Member Units
 12% Secured Debt
 Member Units

Chandler Signs Holdings, LLC  12% Secured Debt/1.00% PIK

Charlotte Russe, Inc

Condit Exhibits, LLC
Congruent Credit Opportunities

Funds

Dos Rios Partners

East Teak Fine Hardwoods, Inc.
EIG Fund Investments

Freeport Financial Funds

 Class A Units
 8.50% Secured Debt
 Common Stock
 Member Units

LP Interests (Fund II)
 LP Interests (Fund III)
 LP Interests (Dos Rios Partners, LP)  
 LP Interests (Dos Rios Partners —
A, LP)
 Common Stock
 LP Interests (EIG Global Private
Debt fund-A, L.P.)
 LP Interests (Freeport Financial
SBIC Fund LP)
 LP Interests (Freeport First Lien
Loan Fund III LP)

Gault Financial, LLC (RMB

Capital, LLC)

8% Secured Debt
 Warrants

Harris Preston Fund Investments  LP Interests (HPEP 3, L.P.)
Hawk Ridge Systems, LLC

 10.5% Secured Debt
 Preferred Member Units
 Preferred Member Units

Houston Plating and

Coatings, LLC

I-45 SLF LLC
L.F. Manufacturing
Holdings, LLC

Meisler Operating LLC

OnAsset Intelligence, Inc.

OPI International Ltd.
PCI Holding Company, Inc.

Rocaceia, LLC (Quality Lease
and Rental Holdings, LLC)

Salado Stone Holdings, LLC
SI East, LLC

Slick Innovations, LLC

Tin Roof Acquisition Company

8% Unsecured Convertible Debt
 Member Units
 Member Units

Member Units
 LIBOR Plus 8.50% (Floor 1.00%)
 Member Units

 12% PIK Secured Debt
 10% PIK Secured Debt
 Preferred Stock
 Warrants
 Common Stock
 12% Current/3% PIK Secured Debt  
 Preferred Stock
 Preferred Stock

12% Secured Debt
 Preferred Member Units
 Class A Preferred Units
 10.25% Current, Secured Debt
 Preferred Member Units
 14.00% Current, Secured Debt
 Warrants
 Member Units
 12% Secured Debt
 Class C Preferred Stock

(8)

(8)
(5)

(5)

(5)
(8)

(8)

(8)

(8)
(6)

(6)
(5)

(6)

(6)

(6)

(6)
(7)

(7)
(6)

(6)
(8)

(8)
(9)

(9)
(9)

(8)

(8)
(8)

(8)
(7)

(8)

(5)

(5)

(7)

(7)
(8)
(9)

(9)

(9)

(8)

(8)
(8)

(8)
(5)

(5)

(8)

(8)

(8)

(8)
(8)
(9)

(9)

(9)

(8)

(8)
(8)
(7)

(7)
(6)

(6)

(6)
(7)

(7)

390  
(164) 

(190) 

(110) 
—  

—  

—  

(270) 
43  

1,640  
2,080  

—  

500  

(2) 

—  
—  

5  
94  

(610) 
(8) 

(530) 
4,663  

(3,141) 
—  

(140) 

(254) 
138  

430  
(70) 

—  

40  
1,177  

210  

—  
83  

693  

—  

—  
1,964  

635  
849  

1,351  

—  

134  

108  
2,286  

254  
726  

20  
604  

60  
630  

—  
123  

—  

2,017  
—  

—  
35  

64  

860 $

3,590  
8,715  

920  

520  
778  

3,876  

—  

500  
16,400  

3,440  
3,930  

5,884  

3,520  

1,000  

1,000  
20,193  

4,172  
4,083  

3,230  
4,500  

2,650  
7,807  

—  
1,950  

1,515  

18,632  
7,165  

1,889  
630  

1,055  

90 $

390  
1,467  

210  

—  
434  

—  

113  

—  
2,164  

1,640  
2,246  

337  

500  

2  

—  
45  

259  
7,797  

97  
54  

—  
16,659  

3,141  
—  

—  

4,014  
138  

430  
—  

479  

—  

— $

—  
164  

190  

110  
1,212  

43  

—  

270  
2,840  

—  
—  

—  

—  

2  

—  
1,200  

—  
1,000  

610  
8  

530  
20,536  

3,141  
—  

660  

5,178  
150  

48  
70  

950 

3,980 
10,018 

940 

410 
— 

3,833 

113 

230 
15,724 

5,080 
6,176 

6,221 

4,020 

1,000 

1,000 
19,038 

4,431 
10,880 

2,717 
4,546 

2,120 
3,930 

— 
1,950 

855 

17,468 
7,153 

2,271 
560 

1,029  

505 

215  

5,399 

(215) 

102  

5,614  

(123) 

902  

8,506  

2,597  

123  

10,980 

950  

400  
—  
(26) 

3,460  

180  

520  

2,133  
(1,214) 

60  
—  

735  

—  

—  

—  

—  
1,371  
—  

(550) 

870  

—  

—  
(750) 
—  

—  
—  

—  

—  
—  

—  

815  

—  
—  
1,561  

352  

—  

243  

289  
2,945  

—  
2,228  

—  

649  

5  

—  

—  
—  
2,105  

—  

—  

—  

—  
23  
1,471  

—  
463  

—  

—  
841  

152  

11,532  

—  
943  
14,300  

3,800  

200  

3,200  

6,140  
16,841  

2,000  
16,633  

3,390  

5,094  

48  

—  

—  
—  
12,593  

890  

2,610  

250  

—  
1,790  
—  

—  
—  

—  

—  
12,722  

3,027  

950  

400  
790  
26  

3,460  

180  

520  

2,190  
—  

60  
3,999  

2,390  

649  

5  

—  

—  
1,371  
615  

—  

870  

—  

—  
—  
36,501  

6,000  
6,959  

181  

700  
561  

152  

12,482  

400  
—  
26  

—  

—  

—  

—  
1,214  

—  
320  

—  

—  

—  

—  

—  
1,371  
1,300  

550  

—  

—  

—  
750  
1,616  

—  
—  

—  

—  
13,283  

3,179  

— 

— 
1,733 
14,300 

7,260 

380 

3,720 

8,330 
15,627 

2,060 
20,312 

5,780 

5,743 

53 

— 

— 
— 
11,908 

340 

3,480 

250 

— 
1,040 
34,885 

6,000 
6,959 

181 

700 
— 

— 

—  
—  

—  

—  
—  

—  

—  

—  
—  

—  
—  

—  

—  

—  

—  
—  

—  
—  

—  
—  

—  
—  

—  
—  

—  

—  
—  

—  
—  

—  

—  

—  

(33) 

(400) 
—  
—  

—  

—  

—  

—  
—  

—  
—  

—  

—  

—  

—  

—  
(1,371) 
—  

—  

—  

—  

—  
—  
—  

—  
—  

—  

—  
—  

—  

198

 
 
  
 
 
  
   
   
   
   
   
   
  
  
  
  
 
  
 
    
  
 
  
 
  
 
  
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
  
 
  
 
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
Table of Contents

Company
UniTek Global Services, Inc.

Universal Wellhead Services

Holdings, LLC

Investment(1)(10)(11)

 LIBOR Plus 5.50% (Floor 1.00%)
 LIBOR Plus 8.50% (Floor 1.00%)
 LIBOR Plus 7.50% (Floor
1.00%)/1.00% PIK
 15% PIK Unsecured Debt
 Preferred Stock
 Preferred Stock
 Preferred Stock
 Common Stock

Preferred Member Units
 Member Units

Valley Healthcare Group, LLC  LIBOR Plus 10.50% (Floor 0.50%)  

 Preferred Member Units
 11.5% Secured Debt
 8% Unsecured Convertible Debt
 Preferred Member Units
 Warrants

Volusion, LLC

Other
Amounts related to investments

transferred to or from other 1940
Act classification during the
period

Total Affiliate investments

Amount
of
Interest,
Fee or
Dividends
Credited
to
Income(2) 
127  

Amount of
Realized
Gain/(Loss) 
—  

Amount of
Unrealized
Gain/(Loss) 
(6) 

 Geography 
(6)

December 31,
2017
Fair Value  
—  

Gross
Additions(3) 
2,975  

Gross
Reductions(4) 
6  

December 31,
2018
Fair Value  
2,969 

(6)

(6)

(6)

(6)

(6)

(6)

(6)

(8)

(8)
(8)

(8)
(8)

(8)

(8)

(8)

—  

—  

—  

—  

—  

—  

—  

—  

—  

41  

—  

8  

399  

(1,069) 

—  

—  
—  

1,898  
—  

—  

—  

—  

—  

420  
—  

—  
—  

—  

—  

(190) 

819  

7  

122  

1,038  

121  

580  

—  

120  

—  
1,400  

58  
2,818  

15  

1  

—  

8,535  

137  

865  

7,320  

—  

2,850  

2,490  

830  

1,910  
11,685  

1,600  
15,200  

—  

14,000  

2,080  

6  

—  

87  

1,080  

1,852  

587  

—  

120  

420  
81  

—  
3,207  

297  

—  

—  

8,541  

137  

952  

987  

215  

399  

1,070  

—  

—  
11,766  

1,600  
—  

—  

—  

190  

— 

— 

— 

7,413 

1,637 

3,038 

1,420 

950 

2,330 
— 

— 
18,407 

297 

14,000 

1,890 

(473) 
20 $

473  
12,062 $

365  
36,800 $

2,825  
338,854 $

—  
125,544 $

—  
101,683 $

— 
359,890 

 $

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments. 

Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred
between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in "Amounts from
investments transferred from other 1940 Act classifications during the period." 

Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or
more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and
out of a different category. 

Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also
include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category. 

Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $257,870. This
represented 17.5% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $60,015. This represented 4.1% of net assets as of December 31,
2018. 

Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $21,596. This
represented 1.5% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $70,959. This represented 4.8% of net assets as of December 31, 2018.

Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $15,760. This
represented 1.1% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $64,914. This represented 4.4% of net assets as of December 31, 2018.

Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $401,355. This
represented 27.2% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $120,454. This represented 8.2% of net assets as of December 31,
2018. 

Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2018 for control investments located in this region was $308,412. This
represented 20.9% of net assets as of December 31, 2018. The fair value as of December 31, 2018 for affiliate investments located in this region was $43,548. This represented 3.0% of net assets as of December 31,
2018. 

All of the Company's portfolio investments are generally subject to restrictions on resale as "restricted securities," unless otherwise noted. 

This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments
including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs. 

(12)

Investment has an unfunded commitment as of December 31, 2018 (see Note K). The fair value of the investment includes the impact of the fair value of any unfunded commitments.

199

 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
  
 
 
  
   
   
   
   
   
   
  
 
 
 
 
  
  
 
 
Table of Contents

    Item 9.    Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 

       Not applicable.

    Item 9A.    Controls and Procedures 

       (a)  Evaluation of Disclosure Controls and Procedures.    As of the end of the period covered by this annual report on Form 10-K, we carried out an evaluation, under the
supervision and with the participation of our management, including our Chief Executive Officer, President, Chief Financial Officer, Chief Compliance Officer and Chief
Accounting Officer, of our disclosure controls and procedures (as defined in Rule 13a-15 of the Exchange Act). Based on that evaluation, our Chief Executive Officer,
President, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer have concluded that our current disclosure controls and procedures are effective in
timely alerting them of material information relating to us that is required to be disclosed in the reports we file or submit under the Exchange Act.

       (b)  Management's Report on Internal Control Over Financial Reporting.    The management of Main Street Capital Corporation and its subsidiaries (the Company) is
responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision
and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Company conducted an evaluation of the effectiveness of the
Company's internal control over financial reporting based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring
Organizations of the Treadway Commission (COSO). Based on the Company's evaluation under the framework in Internal Control — Integrated Framework, management
concluded that the Company's internal control over financial reporting was effective as of December 31, 2019. Grant Thornton LLP, the Company's independent registered
public accounting firm, has issued an attestation report on the effectiveness of the Company's internal control over financial reporting as of December 31, 2019, as stated in its
report which is included herein.

       (c)  Attestation Report of the Registered Public Accounting Firm.    Our independent registered public accounting firm, Grant Thornton LLP, has issued an attestation report
on the effectiveness of our internal control over financial reporting, which is set forth above under the heading "Reports of Independent Registered Public Accounting Firm" in
Item 8.

       (d)  Changes in Internal Control over Financial Reporting.    There have been no changes in our internal control over financial reporting that occurred during the fiscal
quarter ended December 31, 2019 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

    Item 9B.    Other Information 

Director Departures and Reduction in Size of Board

       On February 24, 2020, each of Messrs. Michael Appling, Jr. and Joseph E. Canon informed our Board of Directors that he will be resigning from the Board at the end of
his current term and, therefore, will not stand for re-election at our 2020 annual meeting of stockholders. Messrs. Appling and Canon have each provided over twelve years of
exceptional service to the Board, dating back to the Company's initial public offering in 2007. Neither director's resignation was the result of any disagreement with
management or the Board. The Board has accepted the resignations and passed a resolution reducing the number of directors that constitutes the full Board from eleven to nine
directors, effective as of the date of our 2020 annual meeting of stockholders.

Officer Appointment

       On February 25, 2020, our Board appointed Lance A. Parker to serve as our Vice President, Chief Accounting Officer and Assistant Treasurer effective as of March 1,
2020.

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       Mr. Parker, age 49, a certified public accountant, previously served as our Vice President and Corporate Controller since June 2019. Prior to joining us, Mr. Parker worked
at Group 1 Automotive, Inc. (NYSE: GPI), an automotive retailer, as the Vice President and Corporate Controller from November 2006 to May 2019, and also held the position
of Director of Corporate Compliance from August 2004 to November 2006. From 1993 to 2003, Mr. Parker served as an auditor, with increasing degrees of responsibility, for
both Arthur Andersen LLP and KPMG LLP before leaving his career in public accounting to pursue a position as the Controller for a private advertising and printing company.

       There is no arrangement or understanding between Mr. Parker and any other persons pursuant to which he is being appointed as our Vice President, Chief Accounting
Officer and Assistant Treasurer. There are no current or proposed transactions between us and Mr. Parker or his immediate family members that would require disclosure under
Item 404(a) of Regulation S-K promulgated by the SEC.

       In connection with the promotion of Mr. Parker, our Board has reassigned Mr. Shannon D. Martin from his current role as our Vice President, Chief Accounting Officer
and Assistant Treasurer to a position as our Vice President — Valuations, effective as of March 1, 2020.

Fees and Expenses

       The following table is being provided to update, as of December 31, 2019, certain information in the Company's registration statement on Form N-2 (File No. 231146) filed
with the SEC on April 30, 2019. The information is intended to assist you in understanding the costs and expenses that an investor in the Company will bear directly or
indirectly. We caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this
Annual Report on Form 10-K contains a reference to fees or expenses paid by "you," "us" or "Main Street," or that "we" will pay fees or expenses, stockholders will indirectly
bear such fees or expenses as investors in us.

Stockholder Transaction Expenses:
Sales load (as a percentage of offering price)
Offering expenses (as a percentage of offering price)
Dividend reinvestment and direct stock purchase plan expenses
Total stockholder transaction expenses (as a percentage of offering price)
Annual Expenses of the Company (as a percentage of net assets attributable to common stock):
Operating expenses
Interest payments on borrowed funds
Income tax expense
Acquired fund fees and expenses
Total annual expenses

 —%(1)
 —%(2)
 —%(3)
 —%(4)

  2.76%(5)
  3.40%(6)
  0.08%(7)
  0.45%(8)
  6.69% 

(1)

(2)

(3)

(4)

(5)

In the event that our securities are sold to or through underwriters, a corresponding prospectus or prospectus supplement will disclose the
applicable sales load. 

In the event that we conduct an offering of our securities, a corresponding prospectus or prospectus supplement will disclose the estimated
offering expenses. 

The expenses of administering our dividend reinvestment and direct stock purchase plan are included in operating expenses. 

Total stockholder transaction expenses may include sales load and will be disclosed in a future prospectus or prospectus supplement, if any. 

Operating expenses in this table represent our estimated expenses.

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Example

(6)

(7)

(8)

Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as
adjusted for projected increases (but not decreases) in debt levels over the next twelve months. 

Income tax expense relates to the accrual of (a) deferred tax provision (benefit) primarily related to loss carryforwards, timing differences in
net unrealized appreciation or depreciation and other temporary book-tax differences from our portfolio investments held in Taxable
Subsidiaries and (b) excise, state and other taxes. Deferred taxes are non-cash in nature and may vary significantly from period to period. We
are required to include deferred taxes in calculating our annual expenses even though deferred taxes are not currently payable or receivable.
Due to the variable nature of deferred tax expense, which can be a large portion of the income tax expense, and the difficulty in providing an
estimate for future periods, this income tax expense estimate is based upon the actual amount of income tax expense for the year ended
December 31, 2019. 

Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and
private funds.

       The following example demonstrates the projected dollar amount of total cumulative expenses that would be incurred over various periods with respect to a hypothetical
investment in our common stock. In calculating the following expense amounts, we have assumed we would have no additional leverage and that our annual operating expenses
would remain at the levels set forth in the table above.

You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return   $

66  $

196  $

321  $

615 

1 Year

3 Years

5 Years

10 Years

       The example and the expenses in the table above should not be considered a representation of our future expenses, and actual expenses may be greater or less
than those shown. While the example assumes, as required by the SEC, a 5.0% annual return, our performance will vary and may result in a return greater or less than 5.0%. In
addition, while the example assumes reinvestment of all dividends at net asset value, participants in our dividend reinvestment plan will receive a number of shares of our
common stock, determined by dividing the total dollar amount of the dividend payable to a participant by (i) the market price per share of our common stock at the close of
trading on a valuation date determined by our Board of Directors for each dividend in the event that we use newly issued shares to satisfy the share requirements of the dividend
reinvestment plan or (ii) the average purchase price of all shares of common stock purchased by the plan administrator in the event that shares are purchased in the open market
to satisfy the share requirements of the dividend reinvestment plan, which may be at, above or below net asset value. See the description in "Item 5. Market for Registrant's
Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities — Common Stock, Holders and Distributions" for additional information regarding our
dividend reinvestment plan.

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    Item 10.    Directors, Executive Officers and Corporate Governance 

PART III 

       The information required by this Item will be contained in the definitive proxy statement relating to our 2020 annual meeting of stockholders (the "Proxy Statement") under
the headings "Election of Directors," "Corporate Governance" and "Executive Officers" to be filed with the Securities and Exchange Commission on or prior to April 30, 2020,
and is incorporated herein by reference.

       We have adopted a code of business conduct and ethics that applies to directors, officers and employees of Main Street. This code of ethics is published on our Web site at
www.mainstcapital.com. We intend to disclose any substantive amendments to, or waivers from, this code of conduct within four business days of the waiver or amendment
through a Web site posting.

    Item 11.    Executive Compensation 

       The information required by this Item will be contained in the Proxy Statement under the headings "Compensation of Executive Officers," "Compensation of Directors,"
"Compensation Discussion and Analysis," "Compensation Committee Interlocks and Insider Participation" and "Compensation Committee Report," to be filed with the
Securities and Exchange Commission on or prior to April 30, 2020, and is incorporated herein by reference.

    Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 

       The following table provides information regarding our equity compensation plans as of December 31, 2019:

Plan Category
Equity compensation plans approved by

security holders(1)

Equity compensation plans not approved by

security holders(2)
Total

  $

  $

Number of Securities to be
Issued Upon Exercise of
Outstanding Options,
Warrants and Rights

Weighted-Average Exercise
Price of Outstanding
Options, Warrants and
Rights

Number of Securities
Remaining Available for
Future Issuance Under
Equity Compensation Plans
(Excluding Securities
Reflected in Column)

—  $

150,955 
150,955  $

—  $

— 
—  $

2,155,060 

— 
2,155,060 

(1)

(2)

Consists of our Main Street Capital Corporation 2015 Equity and Incentive Plan and our Main Street Capital Corporation 2015 Non-Employee
Director Restricted Stock Plan. As of December 31, 2019, we had issued 1,162,572 shares of restricted stock pursuant to these plans, of which
559,891 had vested and 17,326 shares were forfeited. Pursuant to each of these plans, if any award issued thereunder shall for any reason expire or
otherwise terminate or be forfeited, in whole or in part, the shares of stock not acquired under such award shall revert to and again become
available for issuance under such plan. For more information regarding these plans, see "Note J — Share-Based Compensation" in the notes to the
consolidated financial statements. 

Consists of our 2015 Deferred Compensation Plan. For more information regarding this plan, see "Note M — Related Party Transactions" in the
notes to the consolidated financial statements.

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       The other information required by this Item will be contained in the Proxy Statement under the heading "Security Ownership of Certain Beneficial Owners and
Management," to be filed with the Securities and Exchange Commission on or prior to April 30, 2020, and is incorporated herein by reference.

    Item 13.    Certain Relationships and Related Transactions, and Director Independence 

       The information required by this Item will be contained in the Proxy Statement under the headings "Certain Relationships and Related Party Transactions" and "Corporate
Governance," to be filed with the Securities and Exchange Commission on or prior to April 30, 2020, and is incorporated herein by reference.

    Item 14.    Principal Accountant Fees and Services 

       The information required by this Item will be contained in the Proxy Statement under the heading "Ratification of Appointment of Independent Registered Public
Accounting Firm for Year Ending December 31, 2019," to be filed with the Securities and Exchange Commission on or prior to April 30, 2020, and is incorporated herein by
reference.

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Table of Contents

  Item 15.    Exhibits and Consolidated Financial Statement Schedules 

       The following documents are filed or incorporated by reference as part of this Annual Report:

1.    Consolidated Financial Statements

PART IV 

Reports of Independent Registered Public Accounting Firm
Consolidated Balance Sheets as of December 31, 2019 and 2018
Consolidated Statements of Operations for the Years Ended December 31, 2019, 2018 and 2017
Consolidated Statements of Changes in Net Assets for the Years Ended December 31, 2019, 2018 and 2017
Consolidated Statements of Cash Flows for the Years Ended December 31, 2019, 2018 and 2017
Consolidated Schedules of Investments as of December 31, 2019 and 2018
Notes to Consolidated Financial Statements

2.    Consolidated Financial Statement Schedule

Report of Independent Registered Public Accounting Firm
Schedule of Investments in and Advances to Affiliates for the Years Ended December 31, 2019 and 2018

3.    Exhibits

       Listed below are the exhibits which are filed as part of this report (according to the number assigned to them in Item 601 of Regulation S-K):

78 
81 
82 
83 
84 
85 
  143 

  190 
  191 

Exhibit
Number

    3.1*

  Articles of Amendment and Restatement of Main Street Capital Corporation (previously filed as Exhibit (a) to Main Street
Capital Corporation's Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007
(Reg. No. 333-142879))

Description

    3.2*

  Amended and Restated Bylaws of Main Street Capital Corporation (previously filed as Exhibit 3.1 to Main Street Capital

Corporation's Current Report on Form 8-K filed on March 6, 2013 (File No. 1-33723))

    4.1*

  Form of Common Stock Certificate (previously filed as Exhibit (d) to Main Street Capital Corporation's Pre-Effective
Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))

    4.2*

  Dividend Reinvestment and Direct Stock Purchase Plan, effective May 10, 2019 (previously filed as Exhibit 99.1 to Main Street

Capital Corporation's Current Report on Form 8-K filed on May 10, 2019 (File No. 1-33723))

    4.3*

  Main Street Mezzanine Fund, LP SBIC debentures guaranteed by the SBA (previously filed as Exhibit (f)(1) to Main Street

Capital Corporation's Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 (Reg.
No. 333-142879))

    4.4*

  Main Street Capital II, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Main Street Capital Corporation's Pre-
Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 for a substantially identical copy
of the form of debentures)

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Table of Contents

Exhibit
Number

    4.5*

  Main Street Capital III, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Main Street Capital Corporation's Pre-
Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 for a substantially identical copy
of the form of debentures)

Description

    4.6*

  Form of Indenture between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A.

(previously filed as Exhibit (d)(6) to Main Street Capital Corporation's Post-Effective Amendment No. 2 to the Registration
Statement on Form N-2 filed on March 28, 2013 (Reg. No. 333-183555))

    4.7*

  Form of Third Supplemental Indenture relating to the 4.50% Notes due 2022, between Main Street Capital Corporation and The
Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(12) to Main Street Capital Corporation's Post-
Effective Amendment No. 14 to the Registration Statement on Form N-2 filed on November 17, 2017 (Reg. No. 333-203147))

    4.8*

  Form of 4.50% Notes due 2022 (incorporated by reference to Exhibit 4.7)

    4.9*

  Form of Fourth Supplemental Indenture relating to the 5.20% Notes due 2024, between Main Street Capital Corporation and

The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(11) to Main Street Capital Corporation's
Post-Effective Amendment No. 7 to the Registration Statement on Form N-2 filed on April 18, 2019 (Reg. No. 333-223483))

  4.10*

  Form of 5.20% Notes due 2024 (incorporated by reference to Exhibit 4.9)

  4.11

  Description of Main Street Capital Corporation's securities registered pursuant to Section 12 of the Securities Exchange Act of

1934

  10.1*

  Third Amended and Restated Credit Agreement dated June 5, 2018 (previously filed as Exhibit 10.1 to Main Street Capital

Corporation's Current Report on Form 8-K filed on June 6, 2018 (File No. 1-33723))

  10.2*

  Third Amended and Restated General Security Agreement dated June 5, 2018 (previously filed as Exhibit 10.2 to Main Street

Capital Corporation's Current Report on Form 8-K filed on June 6, 2018 (File No. 1-33723))

  10.3*

  Third Amended and Restated Equity Pledge Agreement dated June 5, 2018 (previously filed as Exhibit 10.3 to Main Street

Capital Corporation's Current Report on Form 8-K filed on June 6, 2018 (File No. 1-33723))

  10.4*

  Amended and Restated Custodial Agreement dated September 20, 2010 (previously filed as Exhibit 10.3 to Main Street Capital

Corporation's Current Report on Form 8-K filed September 21, 2010 (File No. 1-33723))

  10.5*

  Third Amendment to Amended and Restated Credit Agreement and First Amendment to Amended and Restated Custodial

Agreement dated November 21, 2011 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on
Form 8-K filed November 22, 2011 (File No. 1-33723))

  10.6*

  Supplement Agreement dated July 19, 2018 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current

Report on Form 8-K filed on July 20, 2018 (File No. 1-33723))

  10.7*

  Supplement Agreement dated November 15, 2018 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current

Report on Form 8-K filed on November 15, 2018 (File No. 1-33723))

  10.8*†   Main Street Capital Corporation 2015 Equity and Incentive Plan (previously filed as Exhibit 4.4 to Main Street Capital

Corporation's Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

  10.9*†   Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan (previously filed as Exhibit 4.5 to Main
Street Capital Corporation's Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

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Table of Contents

Exhibit
Number

Description

  10.10*†   Form of Restricted Stock Agreement for Executive Officers — Main Street Capital Corporation 2015 Equity and Incentive Plan

(previously filed as Exhibit 4.6 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on May 5, 2015
(Reg. No. 333-203893))

  10.11*†   Form of Restricted Stock Agreement for Non-Employee Directors — Main Street Capital Corporation 2015 Non-Employee

Director Restricted Stock Plan (previously filed as Exhibit 4.7 to Main Street Capital Corporation's Registration Statement on
Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

  10.12*   Custodian Agreement (previously filed as Exhibit (j) to Main Street Capital Corporation's Pre-Effective Amendment No. 3 to the

Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))

  10.13*†   Form of Confidentiality and Non-Compete Agreement by and between Main Street Capital Corporation and Vincent D. Foster

(previously filed as Exhibit (k)(12) to Main Street Capital Corporation's Pre-Effective Amendment No. 3 to the Registration
Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))

  10.14*†   Form of Indemnification Agreement by and between Main Street Capital Corporation and each executive officer and director
(previously filed as Exhibit (k)(13) to Main Street Capital Corporation's Pre-Effective Amendment No. 3 to the Registration
Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))

  10.15*  

Investment Sub-Advisory Agreement dated May 31, 2012 by and among HMS Adviser, LP, Main Street Capital Partners,  LLC,
Main Street Capital Corporation and HMS Income Fund, Inc. (previously filed as Exhibit (g)(2) to HMS Income Fund, Inc.'s
Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on May 31, 2012 (Reg. No. 333-178548))

  10.16*   Assignment and Assumption of Investment Sub-Advisory Agreement dated December 31, 2013 by and among MSC Adviser I,

 LLC, HMS Adviser, LP, Main Street Capital Partners, LLC, Main Street Capital Corporation and HMS Income Fund, Inc.
(previously filed as Exhibit 10.14 to Main Street Capital Corporation's Annual Report on Form 10-K for the year ended
December 31, 2013 filed on February 28, 2014 (File No. 1-33723))

  10.17*†   Main Street Capital Corporation Deferred Compensation Plan Adoption Agreement and Plan Document (previously filed as

Exhibit 4.1 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on December 18, 2015 (File No. 333-
208643))

  10.18*   Form of Equity Distribution Agreement dated May 16, 2019 (previously filed as Exhibit 1.1 to Main Street Capital Corporation's

Current Report on Form 8-K filed on May 16, 2019 (File No. 1-33723))

  14.1*

  Code of Business Conduct and Ethics (previously filed as Exhibit 14.1 to Main Street Capital Corporation's Quarterly Report on

Form 10-Q for the quarter ended September 30, 2019 filed on November 8, 2019 (File No. 1-33723))

  21.1

  List of Subsidiaries

  23.1

  Consent of Grant Thornton LLP, independent registered public accounting firm

  31.1

  Rule 13a-14(a)/15d-14(a) certification of Chief Executive Officer

  31.2

  Rule 13a-14(a)/15d-14(a) certification of Chief Financial Officer

  32.1

  Section 1350 certification of Chief Executive Officer

  32.2

  Section 1350 certification of Chief Financial Officer

*

†

Exhibit previously filed with the Securities and Exchange Commission, as indicated, and incorporated herein by reference. 

Management contract or compensatory plan or arrangement.

207

 
 
       Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

SIGNATURES 

  MAIN STREET CAPITAL CORPORATION

  By:   /s/ DWAYNE L. HYZAK

Dwayne L. Hyzak
Chief Executive Officer and Director

Date: February 28, 2020

       Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the
capacities and on the dates indicated.

Signature

Title

Date

/s/ DWAYNE L. HYZAK

Dwayne L. Hyzak

Chief Executive Officer and Director
(principal executive officer)

February 28, 2020

/s/ VINCENT D. FOSTER

Executive Chairman of the Board of Directors

February 28, 2020

Vincent D. Foster

/s/ BRENT D. SMITH

Brent D. Smith

/s/ SHANNON D. MARTIN

Shannon D. Martin

/s/ JOSEPH E. CANON

Joseph E. Canon

Chief Financial Officer and Treasurer
(principal financial officer)

February 28, 2020

Vice President, Chief Accounting Officer
(principal accounting officer)

February 28, 2020

Director

February 28, 2020

/s/ MICHAEL APPLING JR.

Director

February 28, 2020

Michael Appling Jr.

/s/ ARTHUR L. FRENCH

Arthur L. French

/s/ J. KEVIN GRIFFIN

J. Kevin Griffin

/s/ JOHN E. JACKSON

John E. Jackson

/s/ BRIAN E. LANE

Brian E. Lane

Director

February 28, 2020

Director

February 28, 2020

Director

February 28, 2020

Director

February 28, 2020

/s/ STEVEN B. SOLCHER

Director

February 28, 2020

Steven B. Solcher

208

 
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Signature

/s/ VALERIE L. BANNER

Valerie L. Banner

/s/ KAY MATTHEWS

Kay Matthews

Title

Director

Date

February 28, 2020

Director

February 28, 2020

209

 
 
 
 
 
 
 
 
 
 
 
 
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    DESCRIPTION OF MAIN STREET CAPITAL CORPORATION'S
SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE
SECURITIES EXCHANGE ACT OF 1934 

Exhibit 4.11 

       As of December 31, 2019, Main Street Capital Corporation ("we," "our," or "us") has one class of securities registered under Section 12 of the Securities Exchange Act of
1934, as amended: our common stock.

DESCRIPTION OF COMMON STOCK 

       The following description is based on relevant portions of the Maryland General Corporation Law and on our articles of incorporation and bylaws. This description is
qualified in its entirety by, and should be read in conjunction with, relevant portions of the Maryland General Corporation Law and our articles of incorporation and bylaws.

       Under the terms of our articles of incorporation, our authorized capital stock consists of 150,000,000 shares of common stock, par value $0.01 per share. Set forth below is
a chart describing the classes of our common stock outstanding as of December 31, 2019:

(1)

Title of Class
Common Stock

(2)

Amount
Authorized
  150,000,000 

(3)
Amount Held
by us or for
Our Account

(4)
Amount Outstanding
Exclusive of Amount
Under Column 3

— 

64,241,341 

       Under our articles of incorporation, our Board of Directors is authorized to classify and reclassify any unissued shares of stock into other classes or series of stock, and to
cause the issuance of such shares, without obtaining stockholder approval. In addition, as permitted by the Maryland General Corporation Law, but subject to the Investment
Company Act of 1940, as amended (the "1940 Act"), our articles of incorporation provide that the Board of Directors, without any action by our stockholders, may amend the
articles of incorporation from time to time to increase or decrease the aggregate number of shares of stock or the number of shares of stock of any class or series that we have
authority to issue. Under Maryland law, our stockholders generally are not personally liable for our debts or obligations.

       All shares of our common stock have equal voting rights and rights to earnings, assets and distributions, except as described below. When shares are issued, upon payment
therefor, they will be duly authorized, validly issued, fully paid and nonassessable. Distributions may be paid to the holders of our common stock if, as and when authorized by
our Board of Directors and declared by us out of assets legally available therefore. Shares of our common stock have no conversion, exchange, preemptive or redemption rights.
In the event of our liquidation, dissolution or winding up, each share of our common stock would be entitled to share ratably in all of our assets that are legally available for
distribution after we pay all debts and other liabilities and subject to any preferential rights of holders of our preferred stock, if any preferred stock is outstanding at such time.
Each share of our common stock is entitled to one vote on all matters submitted to a vote of stockholders, including the election of directors. Except as provided with respect to
any other class or series of stock, the holders of our common stock will possess exclusive voting power. There is no cumulative voting in the election of directors, which means
that holders of a majority of the outstanding shares of common stock will elect all of our directors, and holders of less than a majority of such shares will be unable to elect any
director.

Limitation on Liability of Directors and Officers; Indemnification and Advance of Expenses

       Maryland law permits a Maryland corporation to include in its articles of incorporation a provision limiting the liability of its directors and officers to the corporation and
its stockholders for money damages

1

 
    
    
 
 
 
 
 
 
 
 
 
 
 
except for liability resulting from (a) actual receipt of an improper benefit or profit in money, property or services or (b) active and deliberate dishonesty established by a final
judgment as being material to the cause of action. Our articles of incorporation contain such a provision that eliminates directors' and officers' liability to the maximum extent
permitted by Maryland law, subject to the requirements of the 1940 Act.

       Our articles of incorporation require us, to the maximum extent permitted by Maryland law and subject to the requirements of the 1940 Act, to indemnify any present or
former director or officer or any individual who, while a director or officer and at our request, serves or has served another corporation, real estate investment trust, partnership,
joint venture, trust, employee benefit plan or other enterprise as a director, officer, partner or trustee, from and against any claim or liability to which such person may become
subject or which such person may incur by reason of his or her service in any such capacity, except with respect to any matter as to which such person shall have been finally
adjudicated in any proceeding to be liable to us or our stockholders by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in
the conduct of such person's office.

       Our bylaws obligate us, to the maximum extent permitted by Maryland law and subject to the requirements of the 1940 Act, to indemnify any present or former director or
officer or any individual who, while a director or officer and at our request, serves or has served another corporation, real estate investment trust, partnership, joint venture,
trust, employee benefit plan or other enterprise as a director, officer, partner or trustee and who is made a party to a proceeding by reason of his or her service in any such
capacity from and against any claim or liability to which that person may become subject or which that person may incur by reason of his or her service in any such capacity,
except with respect to any matter as to which such person shall have been finally adjudicated in any proceeding not to have acted in good faith in the reasonable belief that his or
her action was in our best interest or to be liable to us or our stockholders by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties
involved in the conduct of such person's office. Our bylaws also require that, to the maximum extent permitted by Maryland law, we may pay certain expenses incurred by any
such indemnified person in advance of the final disposition of a proceeding.

       Maryland law requires a corporation (unless its articles of incorporation provide otherwise, which our articles of incorporation do not) to indemnify a director or officer
who has been successful in the defense of any proceeding to which he or she is made, or threatened to be made, a party by reason of his or her service in that capacity. Maryland
law permits a corporation to indemnify its present and former directors and officers, among others, against judgments, penalties, fines, settlements and reasonable expenses
actually incurred by them in connection with any proceeding to which they may be made, or threatened to be made, a party by reason of his or her service in those or other
capacities unless it is established that (a) the act or omission of the director or officer was material to the matter giving rise to the proceeding and (1) was committed in bad faith
or (2) was the result of active and deliberate dishonesty, (b) the director or officer actually received an improper personal benefit in money, property or services or (c) in the case
of any criminal proceeding, the director or officer had reasonable cause to believe that the act or omission was unlawful. However, under Maryland law, a Maryland corporation
may not indemnify for an adverse judgment in a suit by or in the right of the corporation or for a judgment of liability on the basis that a personal benefit was improperly
received, unless in either case a court orders indemnification, and then only for expenses. In addition, Maryland law permits a corporation to advance reasonable expenses to a
director or officer upon the corporation's receipt of (a) a written affirmation by the director or officer of his or her good faith belief that he or she has met the standard of
conduct necessary for indemnification by the corporation and (b) a written undertaking by him or her or on his or her behalf to repay the amount paid or reimbursed by the
corporation if it is ultimately determined that the standard of conduct was not met.

       In addition, we have entered into Indemnity Agreements with our directors and executive officers. The Indemnity Agreements generally provide that we will, to the extent
specified in the agreements and to the fullest extent permitted by the 1940 Act and Maryland law as in effect on the day the agreement is executed, indemnify and advance
expenses to each indemnitee that is, or is threatened to be made, a party to or a witness in any civil, criminal or administrative proceeding. We will indemnify the indemnitee
against all

2

 
expenses, judgments, fines, penalties and amounts paid in settlement actually and reasonably incurred in connection with any such proceeding unless it is established that (i) the
act or omission of the indemnitee was material to the matter giving rise to the proceeding and (a) was committed in bad faith or (b) was the result of active and deliberate
dishonesty, (ii) the indemnitee actually received an improper personal benefit, or (iii) in the case of a criminal proceeding, the indemnitee had reasonable cause to believe his or
her conduct was unlawful. Additionally, for so long as we are subject to the 1940 Act, no advancement of expenses will be made until (i) the indemnitee provides a security for
his or her undertaking, (ii) we are insured against losses arising by reason of any lawful advances, or (iii) the majority of a quorum of our disinterested directors, or independent
counsel in a written opinion, determines based on a review of readily available facts that there is reason to believe that the indemnitee ultimately will be found entitled to
indemnification. The Indemnity Agreements also provide that if the indemnification rights provided for therein are unavailable for any reason, we will pay, in the first instance,
the entire amount incurred by the indemnitee in connection with any covered proceeding and waive and relinquish any right of contribution we may have against the indemnitee.
The rights provided by the Indemnity Agreements are in addition to any other rights to indemnification or advancement of expenses to which the indemnitee may be entitled
under applicable law, our articles of incorporation, our bylaws, any agreement, a vote of stockholders or a resolution of directors, or otherwise. No amendment or repeal of the
Indemnity Agreements will limit or restrict any right of the indemnitee in respect of any action taken or omitted by the indemnitee prior to such amendment or repeal. The
Indemnity Agreements will terminate upon the later of (i) ten years after the date the indemnitee has ceased to serve as our director or officer, or (ii) one year after the final
termination of any proceeding for which the indemnitee is granted rights of indemnification or advancement of expenses or which is brought by the indemnitee. The above
description of the Indemnity Agreements is subject to, and is qualified in its entirety by reference to, all the provisions of the form of Indemnity Agreement. We have also
entered into agreements similar to the form of Indemnity Agreement with certain of our non-officer and non-director employees and agents serving as officers, managers,
directors and in other similar roles of certain of our subsidiaries and portfolio companies at our request.

       We have obtained primary and excess insurance policies insuring our directors and officers against certain liabilities they may incur in their capacity as directors and
officers. Under such policies, the insurer, on our behalf, may also pay amounts for which we have granted indemnification to the directors or officers.

Provisions of the Maryland General Corporation Law and Our Articles of Incorporation and Bylaws

       The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that could make it more difficult for a potential acquiror to acquire
us by means of a tender offer, proxy contest or otherwise. These provisions are expected to discourage certain coercive takeover practices and inadequate takeover bids and to
encourage persons seeking to acquire control of us to negotiate first with our Board of Directors. We believe that the benefits of these provisions outweigh the potential
disadvantages of discouraging any such acquisition proposals because, among other things, the negotiation of such proposals may improve their terms.

Election of Directors

       Our bylaws provide that in uncontested elections, directors are elected by a majority of the votes cast in the election of directors, such that a nominee for director will be
elected to the Board of Directors if the votes cast for such nominee's election exceed the votes cast against such nominee's election. In a contested election (i.e., the number of
nominees exceeds the number of directors to be elected), directors would be elected by a plurality of the votes cast in such election. Pursuant to our corporate governance
guidelines, incumbent directors must agree to tender their resignation if they fail to receive the required number of votes for re-election in a case where a majority voting
standard is applied, and in such event the Nominating and Corporate Governance Committee of our Board of Directors will act on an expedited basis to determine whether to
accept the director's resignation and will submit such recommendation for prompt consideration by the Board of Directors. These procedures are described in more detail in our
Corporate Governance and Stock

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Ownership Guidelines, which are available at http://mainstcapital.com under "Corporate Governance — Governance Docs" in the "Investors" section of our website. Pursuant to
our articles of incorporation and bylaws, our Board of Directors may amend the bylaws to alter the vote required to elect directors.

Number of Directors; Vacancies; Removal

       Our articles of incorporation provide that the number of directors will be set only by the Board of Directors in accordance with our bylaws. Our bylaws provide that a
majority of our entire Board of Directors may at any time increase or decrease the number of directors. However, unless the bylaws are amended, the number of directors may
never be less than one or more than twelve. We have elected to be subject to the provision of Subtitle 8 of Title 3 of the Maryland General Corporation Law regarding the filling
of vacancies on the Board of Directors. Accordingly, at such time, except as may be provided by the Board of Directors in setting the terms of any class or series of preferred
stock, any and all vacancies on the Board of Directors may be filled only by the affirmative vote of a majority of the remaining directors in office, even if the remaining
directors do not constitute a quorum, and any director elected to fill a vacancy shall serve for the remainder of the full term of the directorship in which the vacancy occurred
and until a successor is elected and qualifies, subject to any applicable requirements of the 1940 Act. Our stockholders may remove a director, with or without cause, by the
affirmative vote of a majority of all the votes entitled to be cast generally in the election of directors.

Action by Stockholders

       Under the Maryland General Corporation Law, stockholder action may be taken only at an annual or special meeting of stockholders or by unanimous consent in lieu of a
meeting (unless the articles of incorporation provide for stockholder action by less than unanimous written consent, which our articles of incorporation do not). These
provisions, combined with the requirements of our bylaws regarding the calling of a stockholder-requested special meeting of stockholders discussed below, may have the effect
of delaying consideration of a stockholder proposal until the next annual meeting.

Advance Notice Provisions for Stockholder Nominations and Stockholder Proposals

       Our bylaws provide that with respect to an annual meeting of stockholders, nominations of persons for election to the Board of Directors and the proposal of business to be
considered by stockholders may be made only (1) pursuant to our notice of the meeting, (2) by the Board of Directors or (3) by a stockholder who is entitled to vote at the
meeting and who has complied with the advance notice procedures of the bylaws. With respect to special meetings of stockholders, only the business specified in our notice of
the meeting may be brought before the meeting. Nominations of persons for election to the Board of Directors at a special meeting may be made only (1) pursuant to our notice
of the meeting, (2) by the Board of Directors or (3) provided that the Board of Directors has determined that directors will be elected at the meeting, by a stockholder who is
entitled to vote at the meeting and who has complied with the advance notice provisions of the bylaws.

       The purpose of requiring stockholders to give us advance notice of nominations and other business is to afford our Board of Directors a meaningful opportunity to consider
the qualifications of the proposed nominees and the advisability of any other proposed business and, to the extent deemed necessary or desirable by our Board of Directors, to
inform stockholders and make recommendations about such qualifications or business, as well as to provide a more orderly procedure for conducting meetings of stockholders.
Although our bylaws do not give our Board of Directors any power to disapprove stockholder nominations for the election of directors or proposals recommending certain
action, they may have the effect of precluding a contest for the election of directors or the consideration of stockholder proposals if proper procedures are not followed and of
discouraging or deterring a third party from conducting a solicitation of proxies to elect its own slate of directors or to approve its own proposal without regard to whether
consideration of such nominees or proposals might be harmful or beneficial to us and our stockholders.

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Calling of Special Meeting of Stockholders

       Our bylaws provide that special meetings of stockholders may be called by our Board of Directors and certain of our officers. Additionally, our bylaws provide that, subject
to the satisfaction of certain procedural and informational requirements by the stockholders requesting the meeting, a special meeting of stockholders shall be called by our
secretary upon the written request of stockholders entitled to cast not less than a majority of all of the votes entitled to be cast at such meeting.

Approval of Extraordinary Corporate Action; Amendment of Articles of Incorporation and Bylaws

       Under Maryland law, a Maryland corporation generally cannot dissolve, amend its articles of incorporation, merge, sell all or substantially all of its assets, engage in a
share exchange or engage in similar transactions outside the ordinary course of business, unless approved by the affirmative vote of stockholders entitled to cast at least two-
thirds of the votes entitled to be cast on the matter. However, a Maryland corporation may provide in its articles of incorporation for approval of these matters by a lesser
percentage, but not less than a majority of all of the votes entitled to be cast on the matter. Our articles of incorporation generally provide for approval of amendments to our
articles of incorporation and extraordinary transactions by the stockholders entitled to cast at least a majority of the votes entitled to be cast on the matter. Our articles of
incorporation also provide that certain amendments and any proposal for our conversion, whether by merger or otherwise, from a closed-end company to an open-end company
or any proposal for our liquidation or dissolution requires the approval of the stockholders entitled to cast at least 75.0% of the votes entitled to be cast on such matter. However,
if such amendment or proposal is approved by at least 75.0% of our continuing directors (in addition to approval by our Board of Directors), such amendment or proposal may
be approved by the stockholders entitled to cast a majority of the votes entitled to be cast on such a matter. The "continuing directors" are defined in our articles of incorporation
as our current directors, as well as those directors whose nomination for election by the stockholders or whose election by the directors to fill vacancies is approved by a
majority of the continuing directors then on the Board of Directors.

       Currently, our articles of incorporation and bylaws provide that the Board of Directors will have the exclusive power to make, alter, amend or repeal any provision of our
bylaws. We are seeking stockholder approval at our 2020 annual meeting of stockholders to approve an amendment to our articles of incorporation to allow our stockholders to
amend our bylaws by the affirmative vote of a majority of all votes entitled to be cast on the matter. If the amendment to our articles of incorporation is approved by our
stockholders, we expect that our Board of Directors will similarly amend our bylaws.

No Appraisal Rights

       Except with respect to appraisal rights that may arise in connection with the Maryland Control Share Acquisition Act, or Control Share Act, discussed below, as permitted
by the Maryland General Corporation Law, our articles of incorporation provide that stockholders will not be entitled to exercise appraisal rights.

Control Share Acquisitions

       The Control Share Act provides that control shares of a Maryland corporation acquired in a control share acquisition have no voting rights except to the extent approved by
a vote of at least two-thirds of the votes entitled to be cast on the matter. Shares owned by the acquiror, by officers or by directors who are employees of the corporation are
excluded from shares entitled to vote on the matter. Control shares are voting shares of stock which, if aggregated with all other shares of stock owned by the acquiror or in
respect of which the acquiror is able to exercise or direct the exercise of voting power (except solely by virtue of a revocable proxy), would entitle the acquiror to exercise
voting power in electing directors within one of the following ranges of voting power:

•

•

one-tenth or more but less than one-third; 

one-third or more but less than a majority; or

5

 
•

a majority or more of all voting power.

       The requisite stockholder approval must be obtained each time an acquiror crosses one of the thresholds of voting power set forth above. Control shares do not include
shares the acquiring person is then entitled to vote as a result of having previously obtained stockholder approval. A control share acquisition means the acquisition of issued
and outstanding control shares, subject to certain exceptions.

       A person who has made or proposes to make a control share acquisition may compel the board of directors of the corporation to call a special meeting of stockholders to be
held within 50 days of demand to consider the voting rights of the shares. The right to compel the calling of a special meeting is subject to the satisfaction of certain conditions,
including an undertaking to pay the expenses of the meeting. If no request for a meeting is made, the corporation may itself present the question at any stockholders meeting.

       If voting rights are not approved at the meeting or if the acquiring person does not deliver an acquiring person statement as required by the statute, then the corporation may
repurchase for fair value any or all of the control shares, except those for which voting rights have previously been approved. The right of the corporation to repurchase control
shares is subject to certain conditions and limitations. Fair value is determined, without regard to the absence of voting rights for the control shares, as of the date of the last
control share acquisition by the acquiror or of any meeting of stockholders at which the voting rights of the shares are considered and not approved. If voting rights for control
shares are approved at a stockholders meeting and the acquiror becomes entitled to vote a majority of the shares entitled to vote, all other stockholders may exercise appraisal
rights. The fair value of the shares as determined for purposes of appraisal rights may not be less than the highest price per share paid by the acquiror in the control share
acquisition.

       The Control Share Act does not apply (a) to shares acquired in a merger, consolidation or share exchange if the corporation is a party to the transaction or (b) to acquisitions
approved or exempted by the articles of incorporation or bylaws of the corporation.

       We are not currently subject to the Control Share Act since our bylaws contain a provision exempting from the Control Share Act any and all acquisitions by any person of
our shares of stock. There can be no assurance that such provision will not be otherwise amended or eliminated at any time in the future. It is our understanding that it is the
view of the SEC staff that amending our bylaws to subject us to the Control Share Act is inconsistent with 1940 Act Section 18(i), made applicable to business development
companies by Section 61 thereunder.

       However, we will amend our bylaws to be subject to the Control Share Act only if the Board of Directors determines that it would be in our best interests and if the staff of
the SEC permits us to do so after we determine that our being subject to the Control Share Act does not conflict with the 1940 Act.

Business Combinations

       Under the Maryland Business Combination Act, or the Business Combination Act, "business combinations" between a Maryland corporation and an interested stockholder
or an affiliate of an interested stockholder are prohibited for five years after the most recent date on which the interested stockholder becomes an interested stockholder. These
business combinations include a merger, consolidation, share exchange or, in circumstances specified in the statute, an asset transfer or issuance or reclassification of equity
securities. An interested stockholder is defined as:

•

•

any person who, directly or indirectly, beneficially owns 10.0% or more of the voting power of the corporation's outstanding voting stock; or 

an affiliate or associate of the corporation who, at any time within the two-year period prior to the date in question, was the beneficial owner, directly or
indirectly, of 10.0% or more of the voting power of the then outstanding voting stock of the corporation.

6

 
       A person is not an interested stockholder under this statute if the board of directors approved in advance the transaction by which such stockholder otherwise would have
become an interested stockholder. However, in approving a transaction, the board of directors may provide that its approval is subject to compliance, at or after the time of
approval, with any terms and conditions determined by the board.

       After the five-year prohibition, any business combination between the Maryland corporation and an interested stockholder generally must be recommended by the board of
directors of the corporation and approved by the affirmative vote of at least:

•

•

80.0% of the votes entitled to be cast by holders of outstanding shares of voting stock of the corporation; and 

two-thirds of the votes entitled to be cast by holders of voting stock of the corporation other than shares held by the interested stockholder with whom or with
whose affiliate the business combination is to be effected or held by an affiliate or associate of the interested stockholder.

       These super-majority vote requirements do not apply if the corporation's common stockholders receive a minimum price, as defined under Maryland law, for their shares in
the form of cash or other consideration in the same form as previously paid by the interested stockholder for its shares.

       The statute permits various exemptions from its provisions, including business combinations that are exempted by the board of directors before the time that the interested
stockholder becomes an interested stockholder. Our Board of Directors has adopted a resolution exempting any business combination between us and any other person from the
provisions of the Business Combination Act, provided that the business combination is first approved by the Board of Directors, including a majority of the directors who are
not interested persons as defined in the 1940 Act. This resolution, however, may be altered or repealed in whole or in part at any time. If these resolutions are repealed, or the
Board of Directors does not otherwise approve a business combination, the statute may discourage others from trying to acquire control of us and increase the difficulty of
consummating any offer.

Conflict with 1940 Act

       Our bylaws provide that, if and to the extent that any provision of the Maryland General Corporation Law, or any provision of our articles of incorporation or bylaws
conflicts with any provision of the 1940 Act, the applicable provision of the 1940 Act will control.

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QuickLinks

Exhibit 4.11

DESCRIPTION OF MAIN STREET CAPITAL CORPORATION'S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT
OF 1934
DESCRIPTION OF COMMON STOCK

Exhibit 21.1 

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       Main Street Capital Partners, LLC, a Delaware limited liability company

       Main Street Mezzanine Management, LLC, a Delaware limited liability company

    LIST OF SUBSIDIARIES 

       Main Street Equity Interests, Inc., a Delaware corporation

       Main Street Mezzanine Fund, LP, a Delaware limited partnership

       Main Street Capital II GP, LLC, a Delaware limited liability company

       Main Street Capital II, LP, a Delaware limited partnership

       Main Street Capital III GP, LLC, a Delaware limited liability company

       Main Street Capital III, LP, a Delaware limited partnership

       Main Street CA Lending, LLC, a Delaware limited liability company

       MS Equity Holdings, Inc., a Delaware corporation

       MS International Holdings, Inc., a Delaware corporation

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Exhibit 21.1

LIST OF SUBSIDIARIES

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    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

       We have issued our reports dated February 28, 2020, with respect to the consolidated financial statements, financial highlights, financial statement schedule and internal
control over financial reporting included in the Annual Report of Main Street Capital Corporation on Form 10-K for the year ended December 31, 2019. We consent to the
incorporation by reference of said reports in the Registration Statements of Main Street Capital Corporation on Form N-2 (File No. 333-231146) and Form S-8 (File Nos. 333-
203893 and 333-208643).

Exhibit 23.1 

/s/ GRANT THORNTON LLP

Houston, Texas
February 28, 2020

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Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

QuickLinks -- Click here to rapidly navigate through this document

    CERTIFICATION PURSUANT TO
RULE 13a-14(a) and 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS AMENDED 

Exhibit 31.1 

       I, Dwayne L. Hyzak, certify that:

       1.    I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2019 of Main Street Capital Corporation (the "registrant");

       2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in
light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

       3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition,
results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

       4.    The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

       a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that
material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period
in which this report is being prepared;

       b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally
accepted accounting principles;

       c)    Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the
disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

       d)    Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the
registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control
over financial reporting; and

       5.    The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's
auditors and the Audit Committee of the registrant's Board of Directors (or persons performing the equivalent functions):

       a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to
adversely affect the registrant's ability to record, process, summarize and report financial information; and

       b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial
reporting.

Date: February 28, 2020

  By:

/s/ DWAYNE L. HYZAK

Dwayne L. Hyzak
Chief Executive Officer

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QuickLinks

Exhibit 31.1

CERTIFICATION PURSUANT TO RULE 13a-14(a) and 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

QuickLinks -- Click here to rapidly navigate through this document

    CERTIFICATION PURSUANT TO
RULE 13a-14(a) and 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS AMENDED 

Exhibit 31.2 

       I, Brent D. Smith, certify that:

       1.    I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2019 of Main Street Capital Corporation (the "registrant");

       2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in
light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

       3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition,
results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

       4.    The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

       a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that
material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period
in which this report is being prepared;

       b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally
accepted accounting principles;

       c)    Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the
disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

       d)    Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the
registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control
over financial reporting; and

       5.    The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's
auditors and the Audit Committee of the registrant's Board of Directors (or persons performing the equivalent functions):

       a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to
adversely affect the registrant's ability to record, process, summarize and report financial information; and

       b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial
reporting.

Date: February 28, 2020

  By:

/s/ BRENT D. SMITH

Brent D. Smith
Chief Financial Officer

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QuickLinks

Exhibit 31.2

CERTIFICATION PURSUANT TO RULE 13a-14(a) and 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

QuickLinks -- Click here to rapidly navigate through this document

    CERTIFICATION PURSUANT TO
SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

Exhibit 32.1 

       In connection with the accompanying Annual Report of Main Street Capital Corporation (the "Company") on Form 10-K for the year ended December 31, 2019 (the
"Report"), I, Dwayne L. Hyzak, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002,
that:

       (1)   The Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

       (2)   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 28, 2020

  By:

/s/ DWAYNE L. HYZAK

Dwayne L. Hyzak
Chief Executive Officer

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QuickLinks

Exhibit 32.1

CERTIFICATION PURSUANT TO SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE, AS ADOPTED PURSUANT TO SECTION 906 OF THE
SARBANES-OXLEY ACT OF 2002

QuickLinks -- Click here to rapidly navigate through this document

    CERTIFICATION PURSUANT TO
SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

Exhibit 32.2 

       In connection with the accompanying Annual Report of Main Street Capital Corporation (the "Company") on Form 10-K for the year ended December 31, 2019 (the
"Report"), I, Brent D. Smith, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002,
that:

       (1)   The Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

       (2)   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 28, 2020

  By:

/s/ BRENT D. SMITH

Brent D. Smith
Chief Financial Officer

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QuickLinks

Exhibit 32.2

CERTIFICATION PURSUANT TO SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE, AS ADOPTED PURSUANT TO SECTION 906 OF THE
SARBANES-OXLEY ACT OF 2002