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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-K

(Mark One)

For the fiscal year ended March 31, 2012

OR

Commission file number 814-00704

GLADSTONE INVESTMENT CORPORATION

(Exact name of registrant as specified in its charter)

(703) 287-5800

(Registrant’s telephone number, including area code)

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

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  ¨    NO  x

Indicate by check if the registrant is not required to file reports pursuant to Section 13 or Section 15 (d) of the Act.    YES  ¨    NO  x

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  x    NO  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted 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 and post such files).    YES  ¨    NO  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this 10-K or any amendment to this Form 10-K.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12 b-2 of the Exchange Act).    YES  ¨    NO  x

The aggregate market value of the voting stock held by non-affiliates of the Registrant on September 30, 2011, based on the closing price on that date of $6.80 on the NASDAQ Global Select Market, was $131,241,547. For the purposes of calculating this amount only, all directors and executive officers of the Registrant have been treated as affiliates. There were 22,080,133 shares of the Registrant’s Common Stock, $0.001 par value, outstanding as of May 21, 2012.

Documents Incorporated by Reference. Portions of the Registrant’s Proxy Statement relating to the Registrant’s 2012 Annual Meeting of Stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K as indicated herein.

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GLADSTONE INVESTMENT CORPORATION

FORM 10-K FOR THE FISCAL YEAR ENDED

MARCH 31, 2012

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FORWARD-LOOKING STATEMENTS

All statements contained herein, other than historical facts, may constitute “forward-looking statements.” These statements may relate to, among other things, future events or our future performance or financial condition. In some cases, you can identify forward-looking statements by terminology such as “may,” “might,” “believe,” “will,” “provided,” “anticipate,” “future,” “could,” “growth,” “plan,” “intend,” “expect,” “should,” “would,” “if,” “seek,” “possible,” “potential,” “likely” or the negative of such terms or comparable terminology. These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others: (1) further adverse changes in the economy and the capital markets; (2) risks associated with negotiation and consummation of pending and future transactions; (3) the loss of one or more of our executive officers, in particular David Gladstone, Terry Lee Brubaker, George Stelljes III or David Dullum; (4) changes in our business strategy; (5) availability, terms and deployment of capital; (6) changes in our industry, interest rates, exchange rates or the general economy; (7) the degree and nature of our competition; and (8) those factors described in the “Risk Factors” section of this Form 10-K. We caution readers not to place undue reliance on any such forward-looking statement. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, after the date of this Form 10-K.

PART I

In this Annual Report on Form 10-K, or Annual Report, the “Company,” “we,” “us,” and “our” refer to Gladstone Investment Corporation and its wholly-owned subsidiaries unless the context otherwise indicates. Dollar amounts are in thousands unless otherwise indicated.

ITEM 1. BUSINESS

Overview

We invest primarily in subordinated loans, mezzanine debt, preferred stock, common stock and warrants to purchase common stock of small and medium-sized companies, generally located in the United States, in connection with buyouts and other recapitalizations. When we invest in buyouts we typically do so with the management teams of the particular companies and with other buyout funds. We also sometimes invest in senior secured loans and, to a much lesser extent, senior and subordinated syndicated loans. Our investment objective is to generate both current income and capital gains through these debt and equity instruments.

We were incorporated under the General Corporation Laws of the State of Delaware on February 18, 2005. On June 22, 2005 we completed an initial public offering and commenced operations. We operate as a closed-end, non-diversified management investment company and have elected to be treated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). For federal income tax purposes, we have elected to be treated as a regulated investment company (“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). In order to continue to qualify as a RIC for federal income tax purposes and obtain favorable RIC tax treatment, we must meet certain requirements, including certain minimum distribution requirements.

We seek to achieve returns through current income generated from senior, subordinated and mezzanine debt, and capital gains from the sale of preferred stock, common stock and warrants to purchase common stock that we purchase in connection with buyouts and recapitalizations of small and mid-sized companies with established management teams. We seek to make investments that generally range between $10 million and $40 million each, although this investment size may vary proportionately as the size of our capital base changes. Typically, our investments mature in no more than seven years and accrue interest at fixed or variable rates with floors in place. We invest as either the lead investor or a co-investor with other buyout funds and the management of the portfolio company, depending on the opportunity. If we are participating in an investment with one or more co-investors, our investment is likely to be smaller than if we were to be investing alone.

We expect that our target portfolio over time will primarily include the following three categories of investments in private companies:

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Investment Concentrations

As of March 31, 2012, we had investments in 17 portfolio companies in 12 states and 11 different industries with an aggregate fair value of $225.7 million, of which SOG Specialty Knives and Tools, LLC (“SOG”), Acme Cryogenics, Inc. (“Acme”), and Venyu Solutions, Inc. (“Venyu”), collectively, comprised approximately $81.7 million, or 36.2%, of our total investment portfolio, at fair value. The following table outlines our investments by security type at March 31, 2012 and 2011:

Investments at fair value consisted of the following industry classifications at March 31, 2012 and 2011:

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The investments, at fair value, were included in the following geographic regions of the U.S. as of March 31, 2012 and 2011:

The geographic region indicates the location of the headquarters for our portfolio companies. A portfolio company may have other business locations in other geographic regions.

Our Investment Adviser and Administrator

Gladstone Management Corporation (our “Adviser”) is our affiliate and investment adviser and is led by a management team which has extensive experience in our line of business. Our Adviser also has an affiliate, Gladstone Administration, LLC (our “Administrator”), which employs our chief financial officer and treasurer, chief compliance officer, internal counsel and their respective staffs. Our Adviser and Administrator also provide investment advisory and administrative services, respectively, to our affiliates, Gladstone Capital Corporation (“Gladstone Capital”), a publicly-traded BDC and RIC; Gladstone Commercial Corporation (“Gladstone Commercial”), a publicly-traded real estate investment trust; Gladstone Land Corporation, a private agricultural real estate company owned by David Gladstone; Gladstone Lending Corporation (“Gladstone Lending”), a private corporation that was formed primarily to invest in first- and second-lien term loans and that has filed a registration statement on Form N-2 with the Securities and Exchange Commission (“SEC”) but has not yet commenced operations; and Gladstone Partners Fund, L.P., a private partnership fund that was formed primarily to co-invest with us and Gladstone Capital but has not yet commenced operations. Each of our directors and executive officers, other than Messrs. Mead and Watson, is also a director or executive officer, or both, of Gladstone Capital and Gladstone Commercial, each of which is also externally managed by our Adviser. Mr. Watson is also an executive officer of Gladstone Capital. In the future, our Adviser and Administrator may provide investment advisory and administrative services, respectively, to other funds, both public and private.

We have been externally managed by our Adviser pursuant to an investment advisory and administrative agreement since our inception. Our Adviser was organized as a corporation under the laws of the State of Delaware on July 2, 2002, and is a registered investment adviser under the Investment Advisers’ Act of 1940, as amended. Our Adviser is headquartered in McLean, Virginia, a suburb of Washington, D.C., and our Adviser also has offices in several other states.

Investment Process

Overview of Investment and Approval Process

To originate investments, our Adviser’s investment professionals use an extensive referral network comprised primarily of private equity sponsors, venture capitalists, leveraged buyout funds, investment bankers, attorneys, accountants, commercial bankers and business brokers. Our Adviser’s investment professionals review information received from these and other sources in search of potential financing opportunities. If a potential opportunity matches our investment objectives, the investment professionals will seek an initial screening of the opportunity with our president, David Dullum, to authorize the submission of an indication of interest (“IOI”) to the prospective portfolio company. If the prospective portfolio company passes this initial screening and the IOI is accepted by the prospective company, the investment professionals will seek approval to issue a letter of intent (“LOI”) from the Adviser’s investment committee, which is composed of David Gladstone (our chairman and chief executive officer), Terry Lee Brubaker (our co-vice chairman, chief operating officer and secretary) and George Stelljes III (our co-vice chairman and chief investment officer), to the prospective company. If this LOI is issued, then Gladstone Securities, LLC (“Gladstone Securities”), a broker-dealer registered with the Financial Industry Regulatory Authority (“FINRA”) and an affiliate of ours, will conduct a thorough due diligence investigation and create a detailed business analysis summarizing the prospective portfolio company’s historical financial statements, industry, competitive position and management team and analyzing its conformity to our general investment criteria. The investment professionals then present this investment profile to our Adviser’s investment committee, which must approve each investment. Further, each investment is available for review by the members of our Board of Directors, a majority of whom are not “interested persons” as defined in Section 2(a)(19) of the 1940 Act.

Prospective Portfolio Company Characteristics

We have identified certain characteristics that we believe are important in identifying and investing in prospective portfolio companies. The criteria listed below provide general guidelines for our investment decisions, although not all of these criteria may be met by each portfolio company.

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Extensive Due Diligence

Our Adviser and Gladstone Securities conducts what we believe are extensive due diligence investigations of our prospective portfolio companies and investment opportunities. Our due diligence investigation of a prospective portfolio company will begin with a review of publicly available information followed by in depth business analysis, including, but not limited to, some or all of the following:

Upon completion of a due diligence investigation and a decision to proceed with an investment in a buyout, recapitalization or other growth plan, our Adviser’s investment professionals who have primary responsibility for the investment present the investment opportunity to our Adviser’s investment committee. The investment committee determines whether to pursue the potential investment. Additional due diligence of a potential investment may be conducted on our behalf by attorneys and independent accountants prior to the closing of the investment, as well as other outside advisers, as appropriate.

We also rely on the long-term relationships that our Adviser’s investment professionals have with venture capitalists, leveraged buyout funds, investment bankers, commercial bankers, private equity sponsors, and business brokers. In addition, the extensive direct experiences of our executive officers and managing directors in the operations of and providing debt and equity capital to small and medium-sized private businesses plays a significant role in our investment evaluation and assessment of risk.

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Investment Structure

Once we have determined that a prospective acquisition, buyout or recapitalization meets our standards and investment criteria, we work with the management of that company and other capital providers to structure the transaction in a way that provides us the greatest opportunity to maximize our return on the investment, while providing appropriate incentives to management of the company. As we described in the Overview section above, the capital classes through which we typically structure a deal may include subordinated and mezzanine debt, senior secured debt and preferred and common equity. Through our risk management process, we seek to limit the downside risk of our investments by:

We expect to hold most of our investments in subordinated debt, mezzanine debt or equity interests until maturity or repayment, but we will sell our investments earlier if a liquidity event takes place, such as the sale or recapitalization of a portfolio company or, in the case of an equity investment in a company, its initial public offering. Occasionally, we may sell some or all of our subordinated debt, mezzanine debt or equity interests in a portfolio company to a third party, such as an existing investor in the portfolio company, through a privately negotiated transaction.

Temporary Investments

Pending investment in our target market of small and medium-sized companies, we invest our otherwise uninvested cash primarily in cash, cash equivalents, government securities or high-quality debt securities maturing in one year or less from the time of investment. We refer to such investments collectively as temporary investments, so that at least 70% of our assets are “qualifying assets” for purposes of certain provisions of the 1940 Act that pertain specifically to BDCs. For information regarding regulations to which we are subject and the definition of “qualifying assets,” see “—Regulation as a BDC.”

Hedging Strategies

Although it has not yet happened, nor do we expect this to happen in the near future, when one of our portfolio companies goes public, we may undertake hedging strategies with regard to any equity interests that we may have in that company. We may mitigate risks associated with the volatility of publicly-traded securities by, for example, selling securities short or writing or buying call or put options. Hedging against a decline in the value of such investments in public companies would not eliminate fluctuations in the values of such investments or prevent losses if the values of such investments decline, but would establish or enhance a hedging strategy to seek to protect our investment in such securities. Therefore, by engaging in hedging transactions, we would seek to moderate the decline in the value of our hedged investments in public companies. However, such hedging transactions would also limit our opportunity to gain from an increase in the value of our investment in the public company. Hedging strategies can pose risks to us and our stockholders; however we believe that such activities are manageable because they will be limited to only a portion of our portfolio.

In October 2011, we, through our wholly-owned subsidiary Gladstone Business Investment, LLC (“Business Investment”), entered into a fourth amended and restated credit agreement providing for a $60.0 million revolving line of credit (the “Credit Facility”) arranged by Branch Banking and Trust Company (“BB&T”). Pursuant to our Credit Facility, we have agreed to enter into interest rate cap agreements, in connection with the borrowings that we make under our Credit Facility. We currently hold one interest rate cap agreement, which is not designated as a hedge for accounting purposes.

Section 12(a)(3) of the 1940 Act prohibits us from effecting a short sale of any security “in contravention of such rules and regulations or orders as the SEC may prescribe as necessary or appropriate in the public interest or for the protection of investors . . .” However, to date, the SEC has not promulgated regulations under this statute, it is possible that such regulations could be promulgated in the future in a way that would require us to change any hedging strategies that we may adopt. In addition, our ability to engage in short sales may be limited by the 1940 Act’s leverage limitations. We will only engage in hedging activities in compliance with applicable laws and regulations.

Competitive Advantages

A large number of entities compete with us and make the types of investments that we seek to make in small and medium-sized privately-owned businesses. Such competitors include private equity funds, leveraged buyout funds, venture capital funds, investment

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banks and other equity and non-equity based investment funds, and other financing sources, including traditional financial services companies such as commercial banks. Many of our competitors are substantially larger than we are and have considerably greater funding sources that are not available to us. In addition, certain of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments, establish more relationships and build their market shares. Furthermore, many of these competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC. However, we believe that we have the following competitive advantages over other providers of financing to small and mid-sized businesses.

Management expertise

David Gladstone, our chairman and chief executive officer, is also the chairman and chief executive officer of our Adviser and its affiliated companies (the “Gladstone Companies”) and has been involved in all aspects of the Gladstone Companies’ investment activities, including serving as a member of our Adviser’s investment committee. David Dullum, our president, has extensive experience in private equity investing in middle market companies. Terry Lee Brubaker, our co-vice chairman, chief operating officer and secretary, has substantial experience in acquisitions and operations of companies. George Stelljes, III, our co-vice chairman and chief investment officer, has extensive experience in leveraged finance. Messrs. Gladstone, Brubaker and Stelljes also have principal management responsibility for our Adviser as its senior executive officers. These three individuals dedicate a significant portion of their time to managing our investment portfolio. Our senior management has extensive experience providing capital to small and mid-sized companies and has worked together at the Gladstone Companies for more than 10 years. In addition, we have access to the resources and expertise of our Adviser’s investment professionals and support staff who possess a broad range of transactional, financial, managerial, and investment skills.

Increased access to investment opportunities developed through proprietary research capability and an extensive network of contacts

Our Adviser seeks to identify potential investments both through active origination and due diligence and through its dialogue with numerous management teams, members of the financial community and potential corporate partners with whom our Adviser’s investment professionals have long-term relationships. We believe that our Adviser’s investment professionals have developed a broad network of contacts within the investment, commercial banking, private equity and investment management communities, and that their reputation in investment management enables us to identify well-positioned prospective portfolio companies which provide attractive investment opportunities. Additionally, our Adviser expects to generate information from its professionals’ network of accountants, consultants, lawyers and management teams of portfolio companies and other companies.

Disciplined, value-and-income-oriented investment philosophy with a focus on preservation of capital

In making its investment decisions, our Adviser focuses on the risk and reward profile of each prospective portfolio company, seeking to minimize the risk of capital loss without foregoing the potential for capital appreciation. We expect our Adviser to use the same value-and-income-oriented investment philosophy that its professionals use in the management of the other Gladstone Companies and to commit resources to management of downside exposure. Our Adviser’s approach seeks to reduce our risk in investments by using some or all of the following approaches:

Longer investment horizon with attractive, publicly-traded model

Unlike private equity and venture capital funds that are typically organized as finite-life partnerships, we are not subject to standard periodic capital return requirements. The partnership agreements of most private equity and venture capital funds typically provide that such funds may only invest investors’ capital once and must return all capital and realized gains to investors within a finite time period, often 7 to 10 years. These provisions often force private equity and venture capital funds to seek returns on their investments by causing their portfolio companies to pursue mergers, public equity offerings, or other liquidity events more quickly than might otherwise be optimal or desirable, potentially resulting in both a lower overall return to investors or an adverse impact on their portfolio companies. We believe that our flexibility to make investments with a long-term view and without the capital return requirements of traditional private investment vehicles provides us with the opportunity to achieve greater long-term returns on invested capital.

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Flexible transaction structuring

We believe our Adviser’s broad expertise and ability to draw upon many years of experience enables it to identify, assess, and structure investments successfully across all levels of a company’s capital structure and manage potential risk and return at all stages of the economic cycle. We are not subject to many of the regulatory limitations that govern traditional lending institutions, such as banks. As a result, we are flexible in selecting and structuring investments, adjusting investment criteria and transaction structures, and, in some cases, the types of securities in which we invest. We believe that this approach enables our Adviser to identify attractive investment opportunities that will continue to generate current income and capital gain potential throughout the economic cycle, including during turbulent periods in the capital markets. One example of our flexibility is our ability to exchange our publicly-traded stock for the stock of an acquisition target in a tax-free reorganization under the Code. After completing an acquisition in such an exchange, we can restructure the capital of the small company to include senior and subordinated debt.

Leverage

For the purpose of making investments other than temporary investments and to take advantage of favorable interest rates, we may issue senior debt securities up to the maximum amount permitted by the 1940 Act. The 1940 Act currently permits us to issue senior securities representing indebtedness and senior securities that are stock, to which we refer collectively as “Senior Securities,” in amounts such that our asset coverage, as defined in Section 18(h) of the 1940 Act, is at least 200% immediately after each issuance of Senior Securities. We may also incur indebtedness to repurchase our common stock. As a result of incurring indebtedness generally (for example, through our Credit Facility) or issuing senior securities representing indebtedness, we are exposed to the risks of leverage. Although borrowing money for investments increases the potential for gain, it also increases the risk of a loss. A decrease in the value of our investments will have a greater impact on the value of our common stock to the extent that we have borrowed money to make investments. There is a possibility that the costs of borrowing could exceed the income we receive on the investments we make with such borrowed funds.

Our Board of Directors is authorized to provide for the issuance of Senior Securities with such preferences, powers, rights and privileges as it deems appropriate, subject to the requirements of the 1940 Act. See “—Regulation as a BDC—Asset Coverage” for a discussion of our leveraging constraints.

In addition, our ability to pay dividends or distributions (other than dividends payable in our stock) to holders of any class of our capital stock would be restricted if our senior securities representing indebtedness fail to have an asset coverage of at least 200% (measured at the time of declaration of such distribution and accounting for such distribution). The 1940 Act does not apply this limitation to privately arranged debt that is not intended to be publicly distributed, unless this limitation is specifically negotiated by the lender. In addition, our ability to pay dividends or distributions (other than dividends payable in our common stock) to our common stockholders would be restricted if our senior securities that are stock fail to have an asset coverage of at least 200% (measured at the time of declaration of such distribution and accounting for such distribution). If the value of our assets declines, we might be unable to satisfy these asset coverage requirements. To satisfy the 200% asset coverage requirement in the event that we are seeking to pay a distribution, we might either have to (i) liquidate a portion of our loan portfolio to repay a portion of our indebtedness or (ii) issue common stock. This may occur at a time when a sale of a portfolio asset may be disadvantageous, or when we have limited access to capital markets on agreeable terms. In addition, any amounts that we use to service our indebtedness or for offering expenses will not be available for distributions to our stockholders. If we are unable to regain asset coverage through these methods, we may be forced to suspend the payment of such dividends.

Ongoing Management of Investments and Portfolio Company Relationships

Our Adviser’s investment professionals actively oversee each investment by evaluating the portfolio company’s performance and typically working collaboratively with the portfolio company’s management to find and incorporate best resources and practices that help us achieve our expected investment performance.

Monitoring

Our Adviser’s investment professionals monitor the financial performance, trends, and changing risks of each portfolio company on an ongoing basis to determine if each is performing within expectations and to guide the portfolio company’s management in taking the appropriate course of action. Our Adviser employs various methods of evaluating and monitoring the performance of our investments in portfolio companies, which can include the following:

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Relationship Management

Our Adviser’s investment professionals interact with various parties involved with a portfolio company, or investment, by actively engaging with internal and external constituents, including:

Managerial Assistance and Services

As a BDC, we make available significant managerial assistance to our portfolio companies and provide other services to such portfolio companies. Neither we nor our Adviser currently receives fees in connection with the managerial assistance we make available. At times, our Adviser provides other services to certain of our portfolio companies and it receives fees for these other services. 50% of certain of these fees and 100% of others are credited against the base management fee that we would otherwise be required to pay to our Adviser.

Valuation Process

The following is a general description of the steps we take each quarter to determine the value of our investment portfolio. We value our investments in accordance with the requirements of the 1940 Act. We value securities for which market quotations are readily available at their market value. We value all other securities and assets at fair value as determined in good faith by our Board of Directors. In determining the value of our investments, our Adviser has established an investment valuation policy (the “Policy”). The Policy has been approved by our Board of Directors and each quarter the Board of Directors reviews whether our Adviser has applied the Policy consistently and votes whether or not to accept the recommended valuation of our investment portfolio. Due to the uncertainty inherent in the valuation process, such estimates of fair value may differ significantly from the values that would have been obtained had a ready market for the securities existed. Investments for which market quotations are readily available are recorded in our financial statements at such market quotations. With respect to any investments for which market quotations are not readily available or reliable, we perform the following valuation process each quarter:

Our valuation policies, procedures and processes are more fully described under “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies—Investment Valuation.”

Investment Advisory and Management Agreement

We entered into an investment advisory and management agreement with our Adviser (the “Advisory Agreement”), which is controlled by our chairman and chief executive officer. In accordance with the Advisory Agreement, we pay the Adviser fees as compensation for its services, consisting of a base management fee and an incentive fee. On July 12, 2011, our Board of Directors approved the renewal of our Advisory Agreement with our Adviser through August 31, 2012.

Base Management Fee

The base management fee is computed and payable quarterly and is assessed at an annual rate of 2.0% computed on the basis of the value of our average gross assets at the end of the two most recently completed quarters, which are total assets, including investments made with proceeds of borrowings, less any uninvested cash or cash equivalents resulting from

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borrowings. Overall, the base management fee cannot exceed 2.0% of total assets (as reduced by cash and cash equivalents pledged to creditors) during any given fiscal year. In addition, the following three items are potential adjustments to the base management fee calculation.

Our Adviser also services the loans held by our wholly owned subsidiary, Business Investment, in return for which our Adviser receives a 2.0% annual fee based on the monthly aggregate outstanding balance of loans pledged under our Credit Facility. Since we own these loans, all loan servicing fees paid to our Adviser are treated as reductions directly against the 2.0% base management fee under the Advisory Agreement.

Our Board of Directors accepted an unconditional and irrevocable voluntary waiver from the Adviser to reduce the annual 2.0% base management fee on senior syndicated loan participations to 0.5%, to the extent that proceeds resulting from borrowings were used to purchase such syndicated loan participations, for the years ended March 31, 2012 and 2011.

Under the Advisory Agreement, our Adviser has also provided and continues to provide managerial assistance and other services to our portfolio companies and may receive fees for services other than managerial assistance. 50% of certain of these fees and 100% of others are credited against the base management fee that we would otherwise be required to pay to our Adviser.

Incentive Fee

The incentive fee consists of two parts: an income-based incentive fee and a capital gains-based incentive fee. The income-based incentive fee rewards the Adviser if our quarterly net investment income (before giving effect to any incentive fee) exceeds 1.75% of our net assets (the “hurdle rate”). We will pay the Adviser an income incentive fee with respect to our pre-incentive fee net investment income in each calendar quarter as follows:

Quarterly Incentive Fee Based on Net Investment Income

Pre-incentive fee net investment income

(expressed as a percentage of the value of net assets)

Percentage of pre-incentive fee net investment income

allocated to income-related portion of incentive fee

The second part of the incentive fee is a capital gains-based incentive fee that is determined and payable in arrears as of the end of each fiscal year (or upon termination of the Advisory Agreement, as of the termination date), and equals 20% of our realized capital gains as of the end of the fiscal year. In determining the capital gains-based incentive fee payable to our Adviser, we calculate the cumulative aggregate realized capital gains and cumulative aggregate realized capital losses since our inception, and the aggregate unrealized capital depreciation as of the date of the calculation, as applicable, with respect to each of the investments in our portfolio. For this purpose, cumulative aggregate realized capital gains, if any, equals the sum of the differences between the net sales price of each investment, when sold, and the original cost of such investment since our inception. Cumulative aggregate realized capital losses equals the sum of the amounts by which the net sales price of each investment, when sold, is less than the original cost of such investment since our inception. Aggregate unrealized capital depreciation equals the sum of the difference, if negative, between the valuation of each investment as of the applicable calculation date and the original cost of such investment. At the end of the applicable year, the amount of capital gains that serves as the basis for our calculation of the capital gains-based incentive fee equals the cumulative aggregate realized capital

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gains less cumulative aggregate realized capital losses, less aggregate unrealized capital depreciation, with respect to our portfolio of investments. If this number is positive at the end of such year, then the capital gains-based incentive fee for such year equals 20.0% of such amount, less the aggregate amount of any capital gains-based incentive fees paid in respect of our portfolio in all prior years.

Additionally, in accordance with accounting principles generally accepted in the United States (“GAAP”), we did not accrue a capital gains-based incentive fee for the year ended March 31, 2012. This GAAP accrual is calculated using the aggregate cumulative realized capital gains and losses and aggregate cumulative unrealized capital depreciation included in the calculation of the capital gains-based incentive fee plus the aggregate cumulative unrealized capital appreciation. If such amount is positive at the end of a period, then GAAP requires us to record a capital gains-based incentive fee equal to 20% of such amount, less the aggregate amount of actual capital gains-based incentive fees paid in all prior years. If such amount is negative, then there is no accrual for such year. GAAP requires that the capital gains-based incentive fee accrual consider the cumulative aggregate unrealized capital appreciation in the calculation, as a capital gains-based incentive fee would be payable if such unrealized capital appreciation were realized. There can be no assurance that such unrealized capital appreciation will be realized in the future. There was no GAAP accrual for a capital gains-based incentive fee for the years ended March 31, 2011 or 2010, either.

Administration Agreement

We have entered into an administration agreement with our Administrator (the “Administration Agreement”), whereby we pay separately for administrative services. The Administration Agreement provides for payments equal to our allocable portion of our Administrator’s overhead expenses in performing its obligations under the Administration Agreement, including, but not limited to, rent and salaries and benefits expenses of our chief financial officer and treasurer, chief compliance officer, internal counsel and their respective staffs. Our allocable portion of expenses is derived by multiplying our Administrator’s total allocable expenses by the percentage of our total assets at the beginning of the quarter in comparison to the total assets at the beginning of the quarter of all companies managed by the Adviser under similar agreements. On July 12, 2011, the Board of Directors approved the renewal of the Administration Agreement through August 31, 2012.

Material U.S. Federal Income Tax Considerations

RIC Status

To maintain the qualification for treatment as a RIC under Subchapter M of the Code, we must distribute to our stockholders, for each taxable year, at least 90% of our investment company taxable income, which is generally our ordinary income plus short-term capital gains. We refer to this as the annual distribution requirement. We must also meet several additional requirements, including:

In the first quarter of the fiscal year ended March 31, 2010, we sold 29 senior syndicated loans (collectively the, “Syndicated Loan Sales”) that were held in our portfolio of investments at March 31, 2009, to various investors in the syndicated loan market to repay amounts outstanding under our prior line of credit with Deutsche Bank AG (the “Prior Credit Facility”), which matured in April 2009 and was not extended by Deutsche Bank AG. Such sales changed our asset composition in a manner that has affected our ability to meet the 50% threshold requirement of the asset diversification test applicable to RICs under the Code, which we refer to as the 50% threshold.

Failure to meet the 50% threshold alone will not result in our loss of RIC status. In circumstances where the failure to meet the quarterly 50% threshold is the result of fluctuations in the value of assets, including as a result of the sale of assets, we will still be deemed to have satisfied the asset diversification test and, therefore, maintain our RIC status, as long as we have not made any new

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investments, including additional investments in our portfolio companies (such as advances under outstanding lines of credit), since the time that we fell below the 50% threshold. At March 31, 2012, similar to other quarterly measurement dates subsequent to the Syndicated Loan Sales, we satisfied the 50% threshold through the purchase of short-term qualified securities, which was funded primarily through a short-term loan agreement. Subsequent to the March 31, 2012, measurement date, the short-term qualified securities matured, and we repaid the short-term loan, at which time we again fell below the 50% threshold. As of the date of this filing, we remain below the 50% threshold. Thus, while we currently qualify as a RIC despite our current inability to meet the 50% threshold and potential inability to do so in the future, our RIC status will be threatened if we make a new or additional investment before regaining consistent compliance with the 50% threshold. If we make such a new or additional investment and fail to regain compliance with the 50% threshold prior to the next quarterly measurement date following such investment, we will be in non-compliance with the RIC rules and will have thirty days to “cure” our failure of the asset diversification test to avoid our loss of RIC status. Potential cures for failure of the asset diversification test include raising additional equity or debt capital, and changing the composition of our assets, which could include full or partial divestitures of investments, such that we would once again meet or exceed the 50% threshold. In addition, a RIC may be able to cure a failure to meet the asset diversification requirements (i) in certain circumstances by disclosing the assets that cause the RIC to fail to satisfy the diversification test and disposing of those assets within the time provided by law, or (ii) in other circumstances by paying an additional corporate-level tax and by disposing of assets within the time provided by law.

Until the composition of our assets is above the required 50% threshold, we will continue to seek to deploy similar purchases of qualified securities using short-term loans that would allow us to satisfy the 50% threshold, thereby allowing us to make additional investments. There can be no assurance, however, that we will be able to enter into such a transaction on reasonable terms, if at all. We also continue to explore a number of other strategies, including changing the composition of our assets, which could include full or partial divestitures of investments, and raising additional equity or debt capital, such that we would once again regularly meet or exceed the 50% threshold. Our ability to implement any of these strategies will be subject to market conditions and a number of risks and uncertainties that are, in part, beyond our control.

Failure to Qualify as a RIC. If we are unable to qualify for treatment as a RIC and unable to cure a failure to qualify, we will 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 we be required to make such distributions. Distributions would be taxable to our stockholders as dividend income to the extent of our current and accumulated earnings and profits. Subject to certain limitations under the Code, corporate distributees would be eligible for the dividends received deduction. 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 then as a gain realized from the sale or exchange of property. If we fail to meet the RIC requirements for more than two consecutive years and then seek to requalify as a RIC, we would be required to recognize a gain to the extent of any unrealized appreciation on our assets unless we make a special election to pay corporate-level tax on any such unrealized appreciation recognized during the succeeding 10-year period. Absent such special election, any gain we recognized would be deemed distributed to our stockholders as a taxable distribution.

Qualification as a RIC. If we qualify as a RIC and distribute to stockholders each year in a timely manner at least 90% of our investment company taxable income, we will not be subject to federal income tax on the portion of our taxable income and gains we distribute to stockholders. We would, however, be subject to a 4% nondeductible federal excise tax if we do not distribute, actually or on a deemed basis, an amount at least equal to the sum of (1) 98% of our ordinary income for the calendar year, (2) 98.2% of our capital gains in excess of capital losses for the one-year period ending on October 31 of the calendar year and (3) any ordinary income and net capital gains for preceding years that were not distributed during such years. For the calendar years ended December 31, 2011 and 2010, we incurred $30 and $24, respectively, in excise taxes.

The excise tax would apply only to the amount by which the required distributions exceed the amount of income we distribute, actually or on a deemed basis, to stockholders. We will be subject to regular corporate income tax, currently at rates up to 35%, on any undistributed income, including both ordinary income and capital gains. We intend to retain some or all of our capital gains, but to treat the retained amount as a deemed distribution. In that case, among other consequences, we will pay tax on the retained amount, each stockholder will be required to include its share of the deemed distribution in income as if it had been actually distributed to the stockholder and the stockholder will be entitled to claim a credit or refund equal to its allocable share of the tax we pay on the retained capital gain. The amount of the deemed distribution net of such tax will be added to the stockholder’s cost basis for its common stock. Since we expect to pay tax on any retained capital gains at our regular corporate capital gain tax rate, and since that rate is in excess of the maximum rate currently payable by individuals on long-term capital gains, the amount of tax that individual stockholders will be treated as having paid will exceed the tax they owe on the capital gain dividend and such excess may be claimed as a credit or refund against the stockholder’s other tax obligations. A stockholder that is not subject to U.S. federal income tax or tax on long-term capital gains would be required to file a U.S. federal income tax return on the appropriate form in order to claim a refund for the taxes we paid. In order to utilize the deemed distribution approach, we must provide written notice to the stockholders after the close of the relevant tax year. We will also be subject to alternative minimum tax, but any tax preference items would be apportioned between us and our stockholders in the same proportion that distributions, other than capital gain dividends, paid to each stockholder bear to our taxable income determined without regard to the dividends paid deduction.

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If we acquire debt obligations that were originally issued at a discount, which would generally include loans we make that are accompanied by warrants, that bear interest at rates that are not either fixed rates or certain qualified variable rates or that are not unconditionally payable at least annually over the life of the obligation, we will be required to include in taxable income each year a portion of the original issue discount (“OID”) that accrues over the life of the obligation. Such OID will be included in our investment company taxable income even though we receive no cash corresponding to such discount amount. As a result, we may be required to make additional distributions corresponding to such OID amounts in order to satisfy the annual distribution requirement and to continue to qualify as a RIC or to avoid the 4% excise tax. In this event, we may be required to sell temporary investments or other assets to meet the RIC distribution requirements. Through March 31, 2012, we incurred no OID income.

Taxation of Our U.S. Stockholders

Distributions. For any period during which we qualify as a RIC for federal income tax purposes, distributions to our stockholders attributable to our investment company taxable income generally will be taxable as ordinary income to stockholders to the extent of our current or accumulated earnings and profits. We first allocate our earnings and profits to our preferred stockholders and then to our common stockholders based on priority in our capital structure. Any distributions in excess of our earnings and profits will first be treated as a return of capital to the extent of the stockholder’s adjusted basis in his or her shares of common stock and thereafter as gain from the sale of shares of our common stock. Distributions of our long-term capital gains, reported by us as such, will be taxable to stockholders as long-term capital gains regardless of the stockholder’s holding period for its common stock and whether the distributions are paid in cash or invested in additional common stock. Corporate stockholders are generally eligible for the 70% dividends received deduction with respect to ordinary income, but not for capital gains dividends to the extent such amount reported by us does not exceed the dividends received by us from domestic corporations. Any dividend declared by us in October, November or December of any calendar year, payable to stockholders of record on a specified date in such a month and actually paid during January of the following year, will be treated as if it were paid by us and received by the stockholders on December 31 of the previous year. In addition, we may elect to relate a dividend back to the prior taxable year if we (1) declare such dividend prior to the later of the due date for filing our return for that taxable year or the 15^th day of the ninth month following the close of the taxable year, (2) make the election in that return, and (3) distribute the amount in the 12-month period following the close of the taxable year but not later than the first regular dividend payment of the same type following the declaration. Any such election will not alter the general rule that a stockholder will be treated as receiving a dividend in the taxable year in which the distribution is made, subject to the October, November, December rule described above.

If a common stockholder participates in our dividend reinvestment plan, any distributions reinvested under the plan will be taxable to the common stockholder to the same extent, and with the same character, as if the common stockholder had received the distribution in cash. The common stockholder will have an adjusted basis in the additional common shares purchased through the plan equal to the amount of the reinvested distribution. The additional shares will have a new holding period commencing on the day following the day on which the shares are credited to the common stockholder’s account. We do not have a dividend reinvestment plan for our preferred stock shareholders.

Sale of Our Shares. A U.S. stockholder generally will recognize taxable gain or loss if the U.S. stockholder sells or otherwise disposes of his, her or its shares of our stock. Any gain arising from such sale or disposition generally will be treated as long-term capital gain or loss if the U.S. stockholder has held his, her or its shares for more than one year. Otherwise, it will be classified as short-term capital gain or loss. However, any capital loss arising from the sale or disposition of shares of our common stock held for six months or less will be treated as long-term capital loss to the extent of the amount of capital gain dividends received, or undistributed capital gain deemed received, with respect to such shares. Under the tax laws in effect as of the date of this filing, individual U.S. stockholders are subject to a maximum federal income tax rate of 15% on their net capital gain (i.e. the excess of realized net long-term capital gain over realized net short-term capital loss for a taxable year) including any long-term capital gain derived from an investment in our shares. Such rate is lower than the maximum rate on ordinary income currently payable by individuals. Corporate U.S. stockholders currently are subject to federal income tax on net capital gain at the same rates applied to their ordinary income (currently up to a maximum of 35%). Capital losses are subject to limitations on use for both corporate and non-corporate stockholders.

Backup Withholding. We may be required to withhold federal income tax, or backup withholding, currently at a rate of 28%, from all taxable distributions to any non-corporate U.S. stockholder (1) who fails to furnish us with a correct taxpayer identification number or a certificate that such stockholder is exempt from backup withholding, or (2) with respect to whom the Internal Revenue Service (“IRS”) notifies us that such stockholder has failed to properly report certain interest and dividend income to the IRS and to respond to notices to that effect. An individual’s taxpayer identification number is generally his or her social security number. Any amount withheld under backup withholding is allowed as a credit against the U.S. stockholder’s federal income tax liability, provided that proper information is provided to the IRS.

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Regulation as a BDC

We are a closed-end, non-diversified management investment company that has elected to be regulated as a BDC under Section 54 of the 1940 Act. As such, we are subject to regulation 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 and requires that a majority of the directors be persons other than “interested persons,” as 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,” as defined in the 1940 Act.

We intend to conduct our business so as to retain our status as a BDC. A BDC may use capital provided by public stockholders and from other sources to invest in long-term private investments in businesses. A BDC provides stockholders the ability to retain the liquidity of a publicly-traded stock while sharing in the possible benefits, if any, of investing in primarily privately owned companies. In general, 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 qualifying assets, as described in Section 55(a) (1) – (3) of the 1940 Act.

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, other than certain interests in furniture, equipment, real estate, or leasehold improvements (“operating assets”) represent at least 70% of the company’s total assets, exclusive of operating assets. The types of qualifying assets in which we may invest under the 1940 Act include, but are not limited to, the following:

Asset Coverage

Pursuant to Section 61(a)(2) of the 1940 Act, we are permitted, under specified conditions, to issue multiple classes of senior securities representing indebtedness. However, pursuant to Section 18(c) of the 1940 Act, we are permitted to issue only one class of senior securities that is stock. In either case, we may only issue such Senior Securities if such class of Senior Securities, after such issuance, has an asset coverage, as defined in Section 18(h) of the 1940 Act, of at least 200%.

In addition, our ability to pay dividends or distributions (other than dividends payable in our stock) to holders of any class of our capital stock would be restricted if our senior securities representing indebtedness fail to have an asset coverage of at least 200% (measured at the time of declaration of such distribution and accounting for such distribution). The 1940 Act does not apply this limitation to privately arranged debt that is not intended to be publicly distributed, unless this limitation is specifically negotiated by the lender. In addition, our ability to pay dividends or distributions (other than dividends payable in our common stock) to our common stockholders would be restricted if our senior securities that are stock fail to have an asset coverage of at least 200% (measured at the time of declaration of such distribution and accounting for such distribution). If the value of our assets declines, we might be unable to satisfy these asset coverage requirements. To satisfy the 200% asset coverage requirement in the event that we are seeking to pay a distribution, we might either have to (i) liquidate a portion of our loan portfolio to repay a portion of our indebtedness or (ii) issue common stock. This may occur at a time when a sale of a portfolio asset may be disadvantageous, or when we have limited access to capital markets on agreeable terms. In addition, any amounts that we use to service our indebtedness or for offering expenses will not be available for distributions to our stockholders. If we are unable to regain asset coverage through these methods, we may be forced to suspend the payment of such dividends.

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Significant Managerial Assistance

A BDC generally must make available significant managerial assistance to issuers of certain of its portfolio securities that the BDC counts as a qualifying asset for the 70% test described above. Making available significant 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. Significant managerial assistance also includes the exercise of a controlling influence over the management and policies of the portfolio company. However, with respect to certain, but not all such securities, where the BDC purchases 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, or the BDC may exercise such control jointly.

Investment Policies

We seek to achieve a high level of current income and capital gains through investments in debt securities and preferred and common stock that we acquired in connection with buyout and other recapitalizations. The following investment policies, along with these investment objectives, may not be changed without the approval of our Board of Directors:

With the exception of our policy to conduct our business as a BDC, these policies are not fundamental and may be changed without stockholder approval.

Code of Ethics

We and our Adviser have each adopted a code of ethics and business conduct applicable to our officers, directors and all employees of our Adviser and our Administrator that complies with the guidelines set forth in Item 406 of Regulation S-K of the Securities Act of 1933, as amended (the “Securities Act”). As required by the 1940 Act, this code establishes procedures for personal investments, restricts certain transactions by our personnel and requires the reporting of certain transactions and holdings by our personnel. A copy of this code is available for review, free of charge, at our website at www.GladstoneInvestment.com. We intend to provide any required disclosure of any amendments to or waivers of the provisions of this code by posting information regarding any such amendment or waiver to our website within four days of its effectiveness.

Compliance Policies and Procedures

We and our Adviser have adopted and implemented written policies and procedures reasonably designed to prevent violation of the federal securities laws, and our Board of Directors is required to review these compliance policies and procedures annually to assess their adequacy and the effectiveness of their implementation. We have designated a chief compliance officer, John Dellafiora, Jr., who also serves as chief compliance officer for our Adviser.

Staffing

We do not currently have any employees and do not expect to have any employees in the foreseeable future. Currently, services necessary for our business are provided by individuals who are employees of our Adviser or our Administrator pursuant to the terms of the Advisory Agreement and the Administration Agreement, respectively. No employee of our Adviser and our Administrator will dedicate all of his or her time to us. However, we expect that 25-30 full time employees of our Adviser and our Administrator will spend substantial time on our matters during the remainder of calendar year 2012 and all of calendar year 2013. To the extent we acquire more investments, we anticipate that the number of employees of our Adviser and our Administrator who devote time to our matters will increase.

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As of May 18, 2012, our Adviser and Administrator collectively had 54 full-time employees. A breakdown of these employees is summarized by functional area in the table below:

Available Information:

Copies of our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments, if any, to those reports filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) are available free of charge through our website at www.gladstoneinvestment.com. A request for any of these reports may also be submitted to us by sending a written request addressed to Investor Relations Manager, Gladstone Investment Corporation, 1521 Westbranch Drive, Suite 200, McLean, VA 22102, or by calling our toll-free investor relations line at 1-866-366-5745. The public may read and copy materials that we file with the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, DC 20549. Information on the operation of the Public Reference Room may be obtained by calling the SEC at 1-800-SEC-0330. The SEC also maintains a website that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC at www.sec.gov.

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ITEM 1A. RISK FACTORS

An investment in our securities involves a number of significant risks and other factors relating to our structure and investment objectives. As a result, we cannot assure you that we will achieve our investment objectives. You should consider carefully the following information before making an investment in our securities.

Risks Related to the Economy

The current state of the economy and the capital markets increases the possibility of adverse effects on our financial position and results of operations. Continued 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. Continued adversity in the capital markets could impact our ability to raise capital and reduce our volume of new investments.

The U.S. is beginning to recover from the recession that largely began in late 2007. While economic conditions generally appear to be improving, we remain cautious about a long-term economic recovery. The recent recession in general, and the disruptions in the capital markets in particular, have impacted our liquidity options and increased the cost of debt and equity capital. We do not know if adverse conditions will again intensify, and we are unable to gauge the full extent to which the disruptions will affect us. The longer these uncertain conditions persist, the greater the probability that these factors could continue to increase our costs of, and significantly limit our access to, debt and equity capital and, thus, have an adverse effect on our operations and financial results. Many of our current portfolio companies and the companies in which we may invest in the future are also susceptible to these unstable economic conditions, which may affect the ability of one or more of our portfolio companies to repay our loans or engage in a liquidity event, such as a sale, recapitalization or initial public offering. These unstable economic conditions could also disproportionately impact some of the industries in which we invest, causing us to be more vulnerable to losses in our portfolio, which could cause the number of non-performing assets to increase and the fair value of our portfolio to decrease. The unstable economic conditions may also decrease the value of collateral securing some of our loans as well as the value of our equity investments, which would decrease our ability to borrow under our line of credit or raise equity capital, thereby further reducing our ability to make new investments.

The unstable economic conditions have affected the availability of credit generally. Our current credit facility limits our distributions to stockholders and, as a result, we decreased our monthly cash distribution rate by 50%, starting in April 2009, in an effort to more closely align our distributions to our net investment income, though we have subsequently increased our distributions by 25% over the past fiscal year. We do not know when market conditions will stabilize, if adverse conditions will intensify or the full extent to which the disruptions will continue to affect us. Also, it is possible that persistent instability of the financial markets could have other unforeseen material effects on our business.

The downgrade of the United States credit rating and the ongoing economic crisis in Europe could negatively impact our liquidity, financial condition and earnings.

Recent U.S. debt ceiling and budget deficit concerns, together with signs of deteriorating sovereign debt conditions in Europe, have increased the possibility of additional credit-rating downgrades and economic slowdowns. Although U.S. lawmakers passed legislation to raise the federal debt ceiling, Standard & Poor’s Ratings Services lowered its long-term sovereign credit rating on the U.S. from “AAA” to “AA+” in August 2011. The impact of this or any further downgrades to the U.S. government’s sovereign credit rating, or its perceived creditworthiness, and the impact of the current crisis in Europe with respect to the ability of certain European Union countries to continue to service their sovereign debt obligations is inherently unpredictable and could adversely affect the U.S. and global financial markets and economic conditions. There can be no assurance that governmental or other measures to aid economic recovery will be effective. These developments, and the government’s credit concerns in general, could cause interest rates and borrowing costs to rise, which may negatively impact our ability to access the debt markets on favorable terms. Continued adverse economic conditions could have a material adverse effect on our business, financial condition and results of operations.

We may experience fluctuations in our quarterly and annual results based on the impact of inflation in the United States.

The majority of our portfolio companies are in industries that are directly impacted by inflation, such as consumer goods and services and manufacturing. Our portfolio companies may not be able to pass on to customers increases in their costs of operations due to inflation, which could greatly affect their operating results, impacting their ability to repay our loans. In addition, any projected future decreases in our portfolio companies’ operating results due to inflation could adversely impact the fair value of those investments. Any decreases in the fair value of our investments could result in future unrealized losses and therefore reduce our net assets resulting from operations.

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Risks Related to Our External Management

We are dependent upon our key management personnel and the key management personnel of our Adviser, particularly David Gladstone, George Stelljes III, Terry Lee Brubaker and David Dullum, and on the continued operations of our Adviser, for our future success.

We have no employees. Our chief executive officer, president and chief investment officer, chief operating officer and chief financial officer and treasurer, and the employees of our Adviser do not spend all of their time managing our activities and our investment portfolio. We are particularly dependent upon David Gladstone, George Stelljes III, Terry Lee Brubaker and David Dullum in this regard. Our executive officers and the employees of our Adviser allocate some, and in some cases a material portion, of their time to businesses and activities that are not related to our business. We have no separate facilities and are completely reliant on our Adviser, which has significant discretion as to the implementation and execution of our business strategies and risk management practices. We are subject to the risk of discontinuation of our Adviser’s operations or termination of the Advisory Agreement and the risk that, upon such event, no suitable replacement will be found. We believe that our success depends to a significant extent upon our Adviser and that discontinuation of its operations could have a material adverse effect on our ability to achieve our investment objectives.

Our incentive fee may induce our Adviser to make certain investments, including speculative investments.

The management compensation structure that has been implemented under the Advisory Agreement may cause our Adviser to invest in high-risk investments or take other risks. In addition to its management fee, our Adviser is entitled under the Advisory Agreement to receive incentive compensation based in part upon our achievement of specified levels of income. In evaluating investments and other management strategies, the opportunity to earn incentive compensation based on net income may lead our Adviser to place undue emphasis on the maximization of net income at the expense of other criteria, such as preservation of capital, maintaining sufficient liquidity, or management of credit risk or market risk, in order to achieve higher incentive compensation. Investments with higher yield potential are generally riskier or more speculative. This could result in increased risk to the value of our investment portfolio.

We may be obligated to pay our Adviser incentive compensation even if we incur a loss.

The Advisory Agreement entitles our Adviser to incentive compensation for each fiscal quarter in an amount equal to a percentage of the excess of our investment income for that quarter (before deducting incentive compensation, net operating losses and certain other items) above a threshold return for that quarter. When calculating our incentive compensation, our pre-incentive fee net investment income excludes realized and unrealized capital losses that we may incur in the fiscal quarter, even if such capital losses result in a net loss on our statement of operations for that quarter. Thus, we may be required to pay our Adviser incentive compensation for a fiscal quarter even if there is a decline in the value of our portfolio or we incur a net loss for that quarter. For additional information on incentive compensation under the Advisory Agreement with our Adviser, see “Business—Investment Advisory and Management Agreement.”

Our Adviser’s failure to identify and invest in securities that meet our investment criteria or perform its responsibilities under the Advisory Agreement may adversely affect our ability for future growth.

Our ability to achieve our investment objectives will depend on our ability to grow, which in turn will depend on our Adviser’s ability to identify and invest in securities that meet our investment criteria. Accomplishing this result on a cost-effective basis will be largely a function of our Adviser’s structuring of the investment process, its ability to provide competent and efficient services to us, and our access to financing on acceptable terms. The senior management team of our Adviser has substantial responsibilities under the Advisory Agreement. In order to grow, our Adviser will need to hire, train supervise and manage new employees successfully. Any failure to manage our future growth effectively could have a material adverse effect on our business, financial condition and results of operations.

There are significant potential conflicts of interest which could impact our investment returns.

Our executive officers and directors, and the officers and directors of our Adviser, serve or may serve as officers, directors or principals of entities that operate in the same or a related line of business as we do or of investment funds managed by our affiliates. Accordingly, they may have obligations to investors in those entities, the fulfillment of which might not be in the best interests of us or our stockholders. For example, Mr. Gladstone, our chairman and chief executive officer, is the chairman and chief executive officer of our Adviser, Gladstone Capital, Gladstone Commercial and Gladstone Land, as well as the sole stockholder of Gladstone Land. In addition, Mr. Brubaker, our co-vice chairman, chief operating officer, secretary and a director, is the vice chairman, chief operating officer, secretary and a director of our Adviser, Gladstone Capital, Gladstone Commercial and Gladstone Land. Mr. Stelljes, our co-vice chairman, chief investment officer and a director, is also the president and chief investment officer of our Adviser, Gladstone Capital, Gladstone Commercial and Gladstone Land. Mr. Dullum, our president and a director, is a director of Gladstone Capital and Gladstone Commercial. Moreover, our Adviser may establish or sponsor other investment vehicles which from time to time may have potentially overlapping investment objectives with those of ours and accordingly may invest in, whether principally or secondarily,

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asset classes similar to those we target. While our Adviser generally has broad authority to make investments on behalf of the investment vehicles that it advises, our Adviser has adopted investment allocation procedures to address these potential conflicts and intends to direct investment opportunities to the Gladstone affiliate with the investment strategy that most closely fits the investment opportunity. Nevertheless, the management of our Adviser may face conflicts in the allocation of investment opportunities to other entities managed by our Adviser. As a result, it is possible that we may not be given the opportunity to participate in certain investments made by other members of the Gladstone Companies or investment funds managed by investment managers affiliated with our Adviser.

In certain circumstances, we may make investments in a portfolio company in which one of our affiliates has or will have an investment, subject to satisfaction of any regulatory restrictions and, where required, to the prior approval of our Board of Directors. As of March 31, 2012, our Board of Directors has approved the following types of co-investment transactions:

Certain of our officers who are also officers of our Adviser may from time to time serve as directors of certain of our portfolio companies. If an officer serves in such capacity with one of our portfolio companies, such officer will owe fiduciary duties to all stockholders of the portfolio company, which duties may from time to time conflict with the interests of our stockholders.

In the course of our investing activities, we will pay management and incentive fees to our Adviser and will reimburse our Administrator for certain expenses it incurs. As a result, investors in our common stock will invest on a “gross” basis and receive distributions on a “net” basis after expenses, resulting in, among other things, a lower rate of return than one might achieve through our investors themselves making direct investments. As a result of this arrangement, there may be times when the management team of our Adviser has interests that differ from those of our stockholders, giving rise to a conflict. In addition, as a BDC, we make available significant managerial assistance to our portfolio companies and may provide other services to such portfolio companies. Although neither we nor our Adviser currently receives fees in connection with managerial assistance, our Adviser may provide other services to our portfolio companies and receive fees for these other services.

Our Adviser is not obligated to provide a waiver of the base management fee, which could negatively impact our earnings and our ability to maintain our current level of distributions to our stockholders.

The Advisory Agreement provides for a base management fee based on our gross assets. Since our 2008 fiscal year, our Board of Directors has accepted on a quarterly basis voluntary, unconditional and irrevocable waivers to reduce the annual 2.0% base management fee on senior syndicated loan participations to 0.5% to the extent that proceeds resulting from borrowings were used to purchase such syndicated loan participations, and any waived fees may not be recouped by our Adviser in the future. However, our Adviser is not required to issue these or other waivers of fees under the Advisory Agreement, and to the extent our investment portfolio grows in the future, we expect these fees will increase. If our Adviser does not issue these waivers in future quarters, it could negatively impact our earnings and may compromise our ability to maintain our current level of distributions to our stockholders, which could have a material adverse impact on our stock price.

Our business model is dependent upon developing and sustaining strong referral relationships with investment bankers, business brokers and other intermediaries.

We are dependent upon informal relationships with investment bankers, business brokers and traditional lending institutions to provide us with deal flow. If we fail to maintain our relationship with such funds or institutions, or if we fail to establish strong referral relationships with other funds, we will not be able to grow our portfolio of investments and fully execute our business plan.

Risks Related to Our External Financing

In addition to regulatory limitations on our ability to raise capital, our line of credit contains various covenants which, if not complied with, could accelerate our repayment obligations under the facility, thereby materially and adversely affecting our liquidity, financial condition, results of operations and ability to pay distributions.

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We will have a continuing need for capital to finance our loans. Our line of credit permits us to fund additional loans and investments as long as we are within the conditions set forth in the credit agreement. Pursuant to the terms of our line of credit, we are subject to certain limitations on the type of loan investments we make, including restrictions on geographic concentrations, sector concentrations, loan size, dividend payout, payment frequency and status, average life and lien property. The credit agreement also requires us to comply with other financial and operational covenants, which require us to, among other things, maintain certain financial ratios, including asset and interest coverage and a minimum net worth and a minimum number of obligors required in the borrowing base of the credit agreement. As of March 31, 2012, we were in compliance with these covenants; however, our continued compliance depends on many factors, some of which are beyond our control.

The minimum net worth covenant contained in the credit agreement requires our net assets to be at least $155.0 million plus 50.0% of all equity and subordinated debt raised after October 26, 2011. Given the continued uncertainty in the capital markets, the cumulative unrealized depreciation in our portfolio may increase in future periods and threaten our ability to comply with the minimum net worth covenant and other covenants under our line of credit. Under our line of credit, we are also required to maintain our status as a BDC under the 1940 Act and as a RIC under the Code. Because of changes in our asset portfolio, due to significant sales of Non-Control/Non-Affiliate investments during fiscal 2010, there is a significant possibility that we may not meet the asset diversification threshold under the Code’s rules applicable to a RIC as of our next quarterly testing date, June 30, 2012. Although this failure alone, in our current situation, will not cause us to lose our RIC status, our status could be jeopardized if we make any new investments, including additional investments in our portfolio companies (such as advances under our outstanding lines of credit). For more information on our current RIC status, see “Material U.S. Federal Income Tax Considerations—RIC Status.” Our failure to satisfy these covenants could result in foreclosure by our lenders, which would accelerate our repayment obligations under the facility and thereby have a material adverse effect on our business, liquidity, financial condition, results of operations and ability to pay distributions to our stockholders.

In recent years, creditors have significantly curtailed their lending to BDCs, including us. Any inability to renew, extend or replace our line of credit on terms favorable to us, or at all, could adversely impact our liquidity and ability to fund new investments or maintain distributions to our stockholders.

Committed lending under our revolving line of credit was significantly reduced, from $125.0 million to $50.0 million, in 2009. On October 26, 2011, through Business Investment, we entered into a fourth amended and restated credit agreement providing for a $60.0 million revolving Credit Facility, jointly arranged by BB&T and Key Equipment Finance Company, Inc. (“Keybank”), with BB&T as administrative agent and both BB&T and Keybank as committed lenders. Subject to certain terms and conditions, the Credit Facility may be expanded to a total of $175 million through the addition of other committed lenders to the facility. However, if additional lenders are unwilling to join the facility on its terms, we will be unable to expand the facility and thus will continue to have limited availability to finance new investments under our line of credit. The Credit Facility matures on October 25, 2014 (the “Maturity Date”), and, if not renewed or extended by the Maturity Date, all principal and interest will be due and payable on or before October 25, 2015 (one year after the Maturity Date). Between the maturity date and October 25, 2015, our lenders have the right to apply all interest income to amounts outstanding under the Credit Facility. As of May 18, 2012, there were no borrowings outstanding on the Credit Facility and $59.3 million of borrowing capacity under the Credit Facility. There can be no guarantee that we will be able to renew, extend or replace the Credit Facility upon its maturity in 2014 on terms that are favorable to us, if at all. Our ability to expand the Credit Facility, and to obtain replacement financing at the time of its maturity, will be constrained by then-current economic conditions affecting the credit markets. In the event that we are not able to expand the Credit Facility, or to renew, extend or refinance the Credit Facility at the time of its maturity, this could have a material adverse effect on our liquidity and ability to fund new investments, our ability to make distributions to our stockholders and our ability to qualify as a RIC under the Code.

If we are unable to secure replacement financing, we may be forced to sell certain assets on disadvantageous terms, which may result in realized losses, and such realized losses could materially exceed the amount of any unrealized depreciation on these assets as of our most recent balance sheet date, which would have a material adverse effect on our results of operations. In addition to selling assets, or as an alternative, we may issue equity in order to repay amounts outstanding under the line of credit. Based on the recent trading prices of our stock, such an equity offering may have a substantial dilutive impact on our existing stockholders’ interest in our earnings, assets and voting interest in us. If we are able to renew, extend or refinance our Credit Facility prior to maturity, any renewal, extension or refinancing of the Credit Facility will potentially result in significantly higher interest rates and related charges and may impose significant restrictions on the use of borrowed funds to fund investments or maintain distributions to stockholders.

Our business plan is dependent upon external financing, which is constrained by the limitations of the 1940 Act.

Although we completed an offering of 7.125% Series A Cumulative Term Preferred Stock (the “Term Preferred Stock”) in March 2012, there can be no assurance that we will be able to raise capital through issuing equity in the near future. Our business requires a substantial amount of cash to operate and grow. We may acquire such additional capital from the following sources:

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A change in interest rates may adversely affect our profitability and our hedging strategy may expose us to additional risks.

We anticipate using a combination of equity and long-term and short-term borrowings to finance our investment activities. As a result, a portion of our income will depend upon the difference between the rate at which we borrow funds and the rate at which we loan these funds. Higher interest rates on our borrowings will decrease the overall return on our portfolio.

Ultimately, we expect approximately 80% of the loans in our portfolio to be at variable rates determined on the basis of a LIBOR rate and approximately 20% to be at fixed rates. As of March 31, 2012, based on the total principal balance of debt outstanding, our portfolio consisted of approximately 76.7% of loans at variable rates with floors and 23.3% at fixed rates.

We currently hold one interest rate cap agreement. While hedging activities may insulate us against adverse fluctuations in interest rates, they may also limit our ability to participate in the benefits of lower interest rates with respect to the hedged portfolio. Adverse developments resulting from changes in interest rates or any future hedging transactions could have a material adverse effect on our business, financial condition and results of operations. Our ability to receive payments pursuant to an interest rate cap agreement is linked to the ability of the counter-party to that agreement to make the required payments. To the extent that the counter-party to the agreement is unable to pay pursuant to the terms of the agreement, we may lose the hedging protection of the interest rate cap agreement.

Risks Related to Our Investments

We operate in a highly competitive market for investment opportunities.

A large number of entities compete with us and make the types of investments that we seek to make in small and mid-sized companies. We compete with public and private buyout funds, commercial and investment banks, commercial financing companies, and, to the extent they provide an alternative form of financing, hedge funds. 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 funds and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk

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tolerances or different risk assessments, which would allow them to consider a wider variety of investments and establish more relationships than us. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC. The competitive pressures we face could have a material adverse effect on our business, financial condition and results of operations. Also, as a result of this competition, we may not be able to take advantage of attractive investment opportunities from time to time and we can offer no assurance that we will be able to identify and make investments that are consistent with our investment objective. We do not seek to compete based on the interest rates we offer, and we believe that some of our competitors may make loans with interest rates that will be comparable to or lower than the rates we offer. We may lose investment opportunities if we do not match our competitors’ pricing, terms, and structure. However, if we match our competitors’ pricing, terms, and structure, we may experience decreased net interest income and increased risk of credit loss.

Our investments in small and medium-sized portfolio companies are extremely risky and could cause you to lose all or a part of your investment.

Investments in small and medium-sized portfolio companies are subject to a number of significant risks including the following:

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Because the loans we make and equity securities we receive when we make loans are not publicly traded, there is uncertainty regarding the value of our privately held securities that could adversely affect our determination of our net asset value.

Our portfolio investments are, and we expect will continue to be, in the form of securities that are not publicly traded. The fair value of securities and other investments that are not publicly traded may not be readily determinable. Our Board of Directors has established an investment valuation policy and consistently applied valuation procedures used to determine the fair value of these securities quarterly. These procedures for the determination of value of many of our debt securities rely on the opinions of value submitted to us by SPSE or the use of internally developed discounted cash flow (“DCF”) methodologies or indicative bid prices (“IBP”) offered by the respective originating syndication agent’s trading desk, or secondary desk, specifically for our syndicated loans, or internal methodologies based on the total enterprise value (“TEV”) of the issuer used for certain of our equity investments. SPSE will only evaluate the debt portion of our investments for which we specifically request evaluation, and SPSE may decline to make requested evaluations for any reason in its sole discretion. However, to date, SPSE has accepted each of our requests for evaluation.

Our use of these fair value methods is inherently subjective and is based on estimates and assumptions of each security. In the event that we are required to sell a security, we may ultimately sell for an amount materially less than the estimated fair value calculated by SPSE, or utilizing the TEV, IBP or the DCF methodology.

Our procedures also include provisions whereby our Adviser will establish the fair value of any equity securities we may hold where SPSE or third-party agent banks are unable to provide evaluations. The types of factors that may be considered in determining the fair value of our debt and equity securities include some or all of the following:

Because such valuations, particularly valuations of private securities and private companies, are not susceptible to precise determination, may fluctuate over short periods of time, and may be based on estimates, our determinations of fair value may differ from the values that might have actually resulted had a readily available market for these securities been available.

A portion of our assets are, and will continue to be, comprised of equity securities that are valued based on internal assessment using our own valuation methods approved by our Board of Directors, without the input of SPSE or any other third-party evaluator. We believe that our equity valuation methods reflect those regularly used as standards by other professionals in our industry who value equity securities. However, determination of fair value for securities that are not publicly traded, whether or not we use the recommendations of an independent third-party evaluator, necessarily involves the exercise of subjective judgment. Our net asset value could be adversely affected if our determinations regarding the fair value of our investments were materially higher than the values that we ultimately realize upon the disposal of such securities.

The lack of liquidity of our privately held investments may adversely affect our business.

We will generally make investments in private companies whose securities are not traded in any public market. Substantially all of the investments we presently hold and the investments we expect to acquire in the future are, and will be, subject to legal and other restrictions on resale and will otherwise be less liquid than publicly-traded securities. The illiquidity of our investments may make it difficult for us to quickly obtain cash equal to the value at which we record our investments if the need arises. This could cause us to miss important investment opportunities. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may record substantial realized losses upon liquidation. We may also face other restrictions on our ability to liquidate an investment in a portfolio company to the extent that we, our Adviser, or our respective officers, employees or affiliates have material non-public information regarding such portfolio company.

Due to the uncertainty inherent in valuing these securities, our determinations of fair value may differ materially from the values that could be obtained if a ready market for these securities existed. Our net asset value could be materially affected if our determinations regarding the fair value of our investments are materially different from the values that we ultimately realize upon our disposal of such securities.

Our financial results could be negatively affected if a significant portfolio investment fails to perform as expected.

Our total investment in companies may be significant individually or in the aggregate. As a result, if a significant investment in one or more companies fails to perform as expected, our financial results could be more negatively affected and the magnitude of the loss could be more significant than if we had made smaller investments in more companies. Our five largest investments represented 52.9% of the fair value of our total portfolio at March 31, 2012, compared to 58.1% at March 31, 2011. Any disposition of a significant investment in one or more companies may negatively impact our net investment income and limit our ability to pay distributions.

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When we are a debt or minority equity investor in a portfolio company, we may not be in a position to control the entity, and its management may make decisions that could decrease the value of our investment.

We anticipate that some of our investments will continue to be either debt or minority equity investments in our portfolio companies. Therefore, we are and will remain subject to risk that a portfolio company may make business decisions with which we disagree, and the shareholders and management of such company may take risks or otherwise act in ways that do not serve our best interests. As a result, a portfolio company may make decisions that could decrease the value of our portfolio holdings. In addition, we will generally not be in a position to control any portfolio company by investing in its debt securities.

We typically invest in transactions involving acquisitions, buyouts and recapitalizations of companies, which will subject us to the risks associated with change in control transactions.

Our strategy includes making debt and equity investments in companies in connection with acquisitions, buyouts and recapitalizations, which subjects us to the risks associated with change in control transactions. Change in control transactions often present a number of uncertainties. Companies undergoing change in control transactions often face challenges retaining key employees and maintaining relationships with customers and suppliers. While we hope to avoid many of these difficulties by participating in transactions where the management team is retained and by conducting thorough due diligence in advance of our decision to invest, if our portfolio companies experience one or more of these problems, we may not realize the value that we expect in connection with our investments, which would likely harm our operating results and financial condition.

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

We invest in debt securities issued by our portfolio companies. In some cases portfolio companies will be permitted to have other debt that ranks equally with, or senior to, the debt securities in which we invest. By their terms, such debt instruments may provide that the holders thereof are entitled to receive payment of interest and principal on or before the dates on which we are entitled to receive payments in respect of the debt securities 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 in respect of our investment. 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 securities 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 a portfolio company.

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

In addition to risks associated with delays in investing our capital, we are also subject to the risk that investments that we make in our portfolio companies may be repaid prior to maturity. We will first use any proceeds from prepayments to repay any borrowings outstanding on our Credit Facility. In the event that funds remain after repayment of our outstanding borrowings, then we will generally reinvest these proceeds in government securities, pending their future investment in new debt and/or equity securities. These government securities will typically have substantially lower yields than the debt securities being prepaid and we could experience significant delays in reinvesting these amounts. 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 common stock.

Higher taxation of our portfolio companies may impact our quarterly and annual operating results.

The recession’s adverse effect on federal, state and municipality revenues may induce these government entities to raise various taxes to make up for lost revenues. Additional taxation may have an adverse affect on our portfolio companies’ earnings and reduce their ability to repay our loans to them, thus affecting our quarterly and annual operating results.

Our portfolio is concentrated in a limited number of companies and industries, which subjects us to an increased risk of significant loss if any one of these companies does not repay us or if the industries experience downturns.

As of March 31, 2012, we had investments in 17 portfolio companies, of which there were three investments, SOG, Acme and Venyu that comprised approximately $81.7 million or 36.2% of our total investment portfolio, at fair value. A consequence of a limited number of investments is that the aggregate returns we realize may be substantially adversely affected by the unfavorable performance of a small number of such loans or a substantial write-down of any one investment. Beyond our regulatory and income tax diversification requirements, we do not have fixed guidelines for industry concentration and our investments could potentially be

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concentrated in relatively few industries. In addition, while we do not intend to invest 25% or more of our total assets in a particular industry or group of industries at the time of investment, it is possible that as the values of our portfolio companies change, one industry or a group of industries may comprise in excess of 25% of the value of our total assets. As of March 31, 2012, our largest industry concentration was in chemicals, plastics, and rubber, representing 20.7% of our total investments, at fair value. As a result, a downturn in an industry in which we have invested a significant portion of our total assets could have a materially adverse effect on us.

Our investments are typically long term and will require several years to realize liquidation events.

Since we generally make five to seven year term loans and hold our loans and related warrants or other equity positions until the loans mature, you should not expect realization events, if any, to occur over the near term. In addition, we expect that any warrants or other equity positions that we receive when we make loans may require several years to appreciate in value and we cannot give any assurance that such appreciation will occur.

The disposition of our investments may result in contingent liabilities.

Currently, all of our investments involve private securities. In connection with the disposition of an investment in private securities, we may be required to make representations about the business and financial affairs of the underlying portfolio company typical of those made in connection with the sale of a business. We may also be required to indemnify the purchasers of such investment to the extent that any such representations turn out to be inaccurate or with respect to certain potential liabilities. These arrangements may result in contingent liabilities that ultimately yield funding obligations that must be satisfied through our return of certain distributions previously made to us.

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 have structured some of our investments as senior loans, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, including the extent to which we actually provided managerial assistance to that portfolio company, a bankruptcy court might re-characterize our debt investments and subordinate all, or a portion, of our claims to that of other creditors. Holders of debt instruments ranking senior to our investments typically would be entitled to receive payment in full before we receive any distributions. After repaying such senior creditors, such portfolio company may not have any remaining assets to use to repay its obligation to us. We may also be subject to lender liability claims for actions taken by us with respect to a borrower’s business or in instances in which we exercised control over the borrower. It is possible that we could become subject to a lender’s liability claim, including as a result of actions taken in rendering significant managerial assistance.

Portfolio company litigation could result in additional costs and the diversion of management time and resources.

In the course of providing significant managerial assistance to certain of our portfolio companies, our executive officers sometimes serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, such executive officers may be named as defendants in such litigation, which could result in additional costs and the diversion of management time and resources.

We may not realize gains from our equity investments and other yield enhancements.

When we make a subordinated loan, we may receive warrants to purchase stock issued by the borrower or other yield enhancements, such as success fees. Our goal is to ultimately dispose of these equity interests and realize gains upon our disposition of such interests. We expect that, over time, the gains we realize on these warrants and other yield enhancements will offset any losses we experience on loan defaults. However, any warrants we receive may not appreciate in value and, in fact, may decline in value and any other yield enhancements, such as success fees, may not be realized. Accordingly, we may not be able to realize gains from our equity interests or other yield enhancements and any gains we do recognize may not be sufficient to offset losses we experience on our loan portfolio.

During the fiscal year ended March 31, 2012, we recapitalized our investment in Cavert II Holdings Corp (“Cavert”), receiving $8.5 million in proceeds and realizing a gain of $5.5 million, and, during the fiscal year ended March 31, 2011, we achieved realized gains of $23.5 million in aggregate with the sale of A. Stucki Holding Corp. (“A. Stucki”) in June 2010 and Chase II Holding Corp. (“Chase”) in December 2010. These were the first management-supported buyout liquidity events since our inception in 2005. There can be no guarantees that such realized gains can be achieved in future periods and the impact of such sales on our results of operations for the fiscal years 2012 and 2011 should not be relied upon as being indicative of performance in future periods.

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

As a BDC we are required to carry our investments at market value or, if no market value is ascertainable, at fair value as determined in good faith by or under the direction of our Board of Directors. We will record decreases in the market values or fair values of our

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investments as unrealized depreciation. Since our inception, we have, at times, incurred a cumulative net unrealized depreciation of our portfolio. Any unrealized depreciation in our investment portfolio could result in realized losses in the future and ultimately in reductions of our income available for distribution to stockholders in future periods.

Risks Related to Our Regulation and Structure

We currently do not meet the 50% threshold of the asset diversification test applicable to RICs under the Code. If we make any additional investment in the future, including advances under outstanding lines of credit to our portfolio companies, and remain below this threshold as of June 30, 2012, or any subsequent quarter end, we would lose our RIC status unless we are able to cure such failure within 30 days of the quarter end.

In order to maintain RIC status under the Code, in addition to other requirements, as of the close of each quarter of our taxable year, we must meet the asset diversification test, which requires that at least 50% of the value of our assets consist of cash, cash items, U.S. government securities, the securities of other RICs and other securities to the extent such other securities of any one issuer do not represent more than 5% of our total assets or more than 10% of the voting securities of such issuer. As a result of changes in the makeup of our assets during 2009, we fell below the 50% threshold. At March 31, 2012, as with each quarterly measurement since June 30, 2009, we satisfied the 50% threshold through the purchase of short-term qualified securities, which was funded primarily through a short-term loan agreement. Subsequent to the March 31 measurement date, the short-term qualified securities matured, and we repaid the short-term loan, at which time we again fell below the 50% threshold. Until the composition of our assets is above the required 50% threshold, we will continue to seek to deploy similar purchases of qualified securities using short-term loans that would allow us to satisfy the asset diversification test, thereby allowing us to make new or additional investments. There can be no assurance, however, that we will be able to enter into such a transaction on reasonable terms, if at all. Failure to meet this threshold alone does not result in loss of our RIC status in our current situation. In circumstances where the failure to meet the 50% threshold as of a quarterly measurement date is the result of fluctuations in the value of assets, including in our case as a result of the sale of assets, we are still deemed under the rules to have satisfied the asset diversification test and, therefore, maintain our RIC status, as long as we have not made any new investments, including additional investments in our portfolio companies (such as advances under outstanding lines of credit), since the time that we fell below the 50% threshold. Thus, while we currently qualify as a RIC despite our current inability to meet the 50% threshold and potential inability to do so in the future, if we make any new or additional investments before regaining compliance with the asset diversification test, our RIC status will be threatened. Because, in most circumstances, we are contractually required to advance funds on outstanding lines of credit upon the request of our portfolio companies, we may have a limited ability to avoid adding to existing investments in a manner that would cause us to fail the asset diversification test as of June 30, 2012 or as of subsequent quarterly measurement dates.

If we were to make a new or additional investment before regaining compliance with the 50% threshold, and we did not regain compliance prior to the next quarterly measurement date following such investment, we would have thirty days to “cure” our failure to meet the 50% threshold to avoid our loss of RIC status. Potential cures for failure of the asset diversification test include raising additional equity or debt capital as we have done, or changing the composition of our assets, which could include full or partial divestitures of investments, such that we would once again meet or exceed the 50% threshold. Our ability to implement any of these cures would be subject to market conditions and a number of risks and uncertainties that would be, in part, beyond our control. Accordingly, we cannot guarantee you that we would be successful in curing any failure of the asset diversification test, which would subject us to corporate level tax. For additional information about the consequences of failing to satisfy the RIC qualification, see “—We will be subject to corporate level tax if we are unable to satisfy Internal Revenue Code requirements for RIC qualification.”

We will be subject to corporate-level tax if we are unable to satisfy Code requirements for RIC qualification.

To maintain our qualification as a RIC, we must meet income source, asset diversification and annual distribution requirements. The annual distribution requirement is satisfied if we distribute at least 90% of our ordinary income and short-term capital gains to our stockholders on an annual basis. Because we use leverage, we are subject to certain asset coverage ratio requirements under the 1940 Act and could, under certain circumstances, be restricted from making distributions necessary to qualify as a RIC. Warrants we receive with respect to debt investments will create “original issue discount,” which we must recognize as ordinary income, increasing the amounts we are required to distribute to maintain RIC status. Because such warrants will not produce distributable cash for us at the same time as we are required to make distributions in respect of the related original issue discount, we will need to use cash from other sources to satisfy such distribution requirements. The asset diversification requirements must be met at the end of each calendar quarter. If we fail to meet these tests, we may need to quickly dispose of certain investments to prevent the loss of RIC status. Since most of our investments will be illiquid, such dispositions, if even possible, may not be made at prices advantageous to us and, in fact, may result in substantial losses. If we fail to qualify as a RIC for any reason and become fully subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution, and the actual amount distributed. Such a failure would have a material adverse effect on us and our shares. For additional information regarding asset coverage ratio and RIC requirements, see “Business—Material U.S. Federal Income Tax Considerations—RIC Status.”

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From time to time, some of our debt investments may include success fees that would generate payments to us if the business is ultimately sold. Because the satisfaction of these success fees, and the ultimate payment of these fees, is uncertain, we do not recognize them as income until we have received payment. We sought and received approval for a change in accounting method from the IRS related to our tax treatment for success fees. As a result, we, in effect, will continue to account for the recognition of income from the success fees upon receipt, or when the amounts become fixed. Prior to January 1, 2011, we treated the success fee amounts as a capital gain for tax characterization purposes. However, beginning January 1, 2011, the success fee amounts are characterized as ordinary income for tax purposes. The approved change in accounting method does not require us to retroactively change the capital gains treatment of the success fees received prior to January 1, 2011. As a result, we are required to distribute such amounts to our stockholders in order to maintain RIC status for success fees we receive after January 1, 2011.

Changes in laws or regulations governing our operations, or changes in the interpretation thereof, and any failure by us to comply with laws or regulations governing our operations may adversely affect our business.

We and our portfolio companies are subject to regulation by laws at the local, state and federal levels. These laws and regulations, as well as their interpretation, may be changed from time to time. Accordingly, any change in these laws or regulations, or their interpretation, or any failure by us or our portfolio companies to comply with these laws or regulations may adversely affect our business. For additional information regarding the regulations to which we are subject, see “Business—Material U.S. Federal Income Tax Considerations—RIC Status” and “Business—Regulation as a BDC.”

Provisions of the Delaware General Corporation Law and of our certificate of incorporation and bylaws could restrict a change in control and have an adverse impact on the price of our common stock.

We are subject to provisions of the Delaware General Corporation Law that, in general, prohibit any business combination with a beneficial owner of 15% or more of our common stock for three years unless the holder’s acquisition of our stock was either approved in advance by our Board of Directors or ratified by the Board of Directors and stockholders owning two-thirds of our outstanding stock not owned by the acquiring holder. Although we believe these provisions collectively provide for an opportunity to receive higher bids by requiring potential acquirers to negotiate with our Board of Directors, they would apply even if the offer may be considered beneficial by some stockholders.

We have also adopted other measures that may make it difficult for a third party to obtain control of us, including provisions of our certificate of incorporation classifying our Board of Directors in three classes serving staggered three-year terms, and provisions of our certificate of incorporation authorizing our Board of Directors to induce the issuance of additional shares of our stock. These provisions, as well as other provisions of our certificate of incorporation and bylaws, may delay, defer, or prevent a transaction or a change in control that might otherwise be in the best interests of our stockholders.

Risks Related to an Investment in Our Common or Preferred Stock

We may experience fluctuations in our quarterly and annual operating results.

We may experience fluctuations in our quarterly and annual operating results due to a number of factors, including, among others, variations in our investment income, the interest rates payable on the debt securities we acquire, the default rates on such securities, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the level of our expenses, the degree to which we encounter competition in our markets, and general economic conditions, including the impacts of inflation. The majority of our portfolio companies are in industries that are directly impacted by inflation, such as manufacturing and consumer goods and services. Our portfolio companies may not be able to pass on to customers increases in their costs of production which could greatly affect their operating results, impacting their ability to repay our loans. In addition, any projected future decreases in our portfolio companies’ operating results due to inflation could adversely impact the fair value of those investments. Any decreases in the fair value of our investments could result in future realized and unrealized losses and therefore reduce our net assets resulting from operations. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods and may impact the share prices of our common stock and preferred stock.

There is a risk that you may not receive distributions.

Our current intention is to distribute at least 90% of our ordinary income and short-term capital gains to our stockholders on a quarterly basis by paying monthly distributions. We expect to retain net realized long-term capital gains through a “deemed distribution” to supplement our equity capital and support the growth of our portfolio, although our Board of Directors may determine in certain cases to distribute these gains to our common stockholders. In addition, our line of credit restricts the amount of distributions we are permitted to make. We cannot assure you that we will achieve investment results or maintain a tax status that will allow or require any specified level of cash distributions.

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Distributions to our stockholders have included and may in the future include a return of capital.

Our Board of Directors declares monthly distributions based on estimates of taxable income for each fiscal year, which may differ, and in the past have differed, from actual results. Because our distributions are based on estimates of taxable income that may differ from actual results, future distributions payable to our stockholders may also include a return of capital. Moreover, to the extent that we distribute amounts that exceed our accumulated earnings and profits, these distributions constitute a return of capital. A return of capital represents a return of a stockholder’s original investment in shares of our stock and should not be confused with a distribution from earnings and profits. Although return of capital distributions may not be taxable, such distributions may increase an investor’s tax liability for capital gains upon the sale of our shares by reducing the investor’s tax basis for such shares. Such returns of capital reduce our asset base and also adversely impact our ability to raise debt capital as a result of the leverage restrictions under the 1940 Act, which could have a material adverse impact on our ability to make new investments.

The market price of our shares may fluctuate significantly.

The trading prices of our common stock and our preferred stock may fluctuate substantially. Due to the extreme volatility and disruption that have affected the capital and credit markets over the past few years, we have experienced greater than usual stock price volatility.

The market price and marketability of our shares may from time to time be significantly affected by numerous factors, including many over which we have no control and that may not be directly related to us. These factors include, but are not limited to, the following:

Fluctuations in the trading prices of our shares may adversely affect the liquidity of the trading market for our shares and, if we seek to raise capital through future equity financings, our ability to raise such equity capital.

The issuance of subscription rights to our existing stockholders may dilute the ownership and voting powers by existing stockholders in our common stock, dilute the net asset value of their shares and have a material adverse effect on the trading price of our common stock.

In April 2008, we completed an offering of transferable rights to subscribe for additional shares of our common stock, or subscription rights. We raised equity in this manner primarily due to the capital raising constraints applicable to us under the 1940 Act when our stock is trading below its net asset value per share, as it was at the time of the rights offering. In the event that we again issue subscription rights to our existing stockholders, there is a significant possibility that the rights offering will dilute the ownership interest and voting power of stockholders who do not fully exercise their subscription rights. Stockholders who do not fully exercise their subscription rights should expect that they will, upon completion of the rights offering, own a smaller proportional interest in the Company than would otherwise be the case if they fully exercised their subscription rights. In addition, because the subscription price of the rights offering is likely to be less than our most recently determined net asset value per share, our stockholders are likely to experience an immediate dilution of the per share net asset value of their shares as a result of the offer. As a result of these factors, any future rights offerings of our common stock, or our announcement of our intention to conduct a rights offering, could have a material adverse impact on the trading price of our common stock.

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Shares of closed-end investment companies frequently trade at a discount from net asset value.

Shares of closed-end investment companies frequently trade at a discount from net asset value. Since our inception, our common stock has at times traded above net asset value, and at times traded below net asset value. During the past year, our common stock has consistently, and at times significantly, traded below net asset value. Subsequent to March 31, 2012, our stock has traded at discounts of up to 26.4% of our net asset value per share, which was $9.38 as of March 31, 2012. This characteristic of shares of closed-end investment companies is separate and distinct from the risk that our net asset value per share will decline. As with any stock, the price of our shares will fluctuate with market conditions and other factors. If shares are sold, the price received may be more or less than the original investment. Whether investors will realize gains or losses upon the sale of our shares will not depend directly upon our net asset value, but will depend upon the market price of the shares at the time of sale. Since the market price of our shares will be affected by such factors as the relative demand for and supply of the shares in the market, general market and economic conditions and other factors beyond our control, we cannot predict whether the shares will trade at, below or above our net asset value. Under the 1940 Act, we are generally not able to issue additional shares of our common stock at a price below net asset value per share to purchasers other than our existing stockholders through a rights offering without first obtaining the approval of our stockholders and our independent directors. Additionally, at times when our stock is trading below its net asset value per share, our dividend yield may exceed the weighted average returns that we would expect to realize on new investments that would be made with the proceeds from the sale of such stock, making it unlikely that we would determine to issue additional shares in such circumstances. Thus, for as long as our common stock trades below net asset value we will be subject to significant constraints on our ability to raise capital through the issuance of common stock. Additionally, an extended period of time in which we are unable to raise capital may restrict our ability to grow and adversely impact our ability to increase or maintain our distributions.

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.

At our most recent annual meeting, our stockholders approved a proposal designed to allow us to access the capital markets in a way that absent stockholder approval, we are generally unable to due to restrictions applicable to BDCs under the 1940 Act. Specifically, our stockholders approved a proposal that authorizes us to sell shares of our common stock below the then current net asset value per share of our common stock in one or more offerings for a period of one year. At the upcoming annual stockholders meeting scheduled for August 9, 2012, our stockholders will again be asked to vote in favor of renewing this proposal for another year. During the past year, our common stock has consistently, and at times significantly, traded below net asset value. Any decision to sell shares of our common stock below the then current net asset value per share 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. The greater the difference between the sale price and the net asset value per share at the time of the offering, the more significant the dilutive impact would be. 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, if any, cannot be currently predicted. However, if, for example, we sold an additional 10% of our common stock at a 5% discount from net asset value, a stockholder who did not participate in that offering for its proportionate interest would suffer net asset value dilution of up to 0.5% or $5 per $1,000 of net asset value.

If we fail to pay dividends on our Term Preferred Stock for two years, the holders of our Term Preferred Stock will be entitled to elect a majority of our directors.

The terms of our Term Preferred Stock provide for annual dividends in the amount of $1.7813 per share. If such dividends are not paid for a period of two years, the holders of Term Preferred Stock will be entitled to elect a majority of our Board of Directors.

Our Term Preferred Stock magnifies the potential for gains or losses for holders of our common stock and the risks of investing in our common stock in the same way as our borrowings.

Preferred stock, which is another form of leverage, has the same risks to our common stockholders as borrowings because the dividends on any preferred stock we issue must be cumulative. Payment of such dividends and repayment of the liquidation preference of such preferred stock must take preference over any dividends or other payments to our common stockholders, and preferred stockholders are less subject to our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference.

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An investment in Term Preferred Stock with a fixed interest rate bears interest rate risk.

Our Term Preferred Stock pays dividends at a fixed dividend rate of 7.125% per year. Prices of fixed income investments generally vary inversely with changes in market yields. The market yields on securities comparable to the Term Preferred Stock may increase, which would likely result in a decline in the secondary market price of the Term Preferred Stock prior to the term redemption date. This risk may be even more significant in light of the low nature of the currently prevailing market interest rates.

A liquid secondary trading market for our Term Preferred Stock may not develop.

Because we had no prior trading history for exchange-listed preferred stock until our recent offering of Term Preferred Stock, we cannot predict the long-term trading patterns of the Term Preferred Stock, including the effective costs of trading the stock. Although our Term Preferred Stock is listed for trading on the NASDAQ, there is a risk that such shares may be thinly traded, and the market for such shares may be relatively illiquid compared to the market for other types of securities, with the spread between the bid and asked prices considerably greater than the spreads of other securities with comparable terms and features.

The Term Preferred Stock is not rated.

We have not had the Term Preferred Stock rated by any rating agency. Unrated securities usually trade at a discount to similarly rated securities. As a result, there is a risk that the shares of our Term Preferred Stock may trade at a price that is lower than they might otherwise trade if they were rated by a rating agency.

The Term Preferred Stock will bear a risk of early redemption by us.

We may voluntarily redeem some or all of the Term Preferred Stock on or after February 28, 2016, which is one year prior to its mandatory redemption date of February 28, 2017. We also may be forced to redeem some or all of the Term Preferred Stock to meet regulatory requirements and the asset coverage requirements of such shares, and any such redemption may occur at a time that is unfavorable to holders of the Term Preferred Stock. We may have an incentive to redeem the Term Preferred Stock voluntarily before the mandatory redemption date if market conditions allow us to issue other preferred stock or debt securities at a rate that is lower than the fixed dividend rate on the Term Preferred Stock.

Claims of holders of our Term Preferred Stock are subject to a risk of subordination relative to holders of our debt instruments.

Rights of holders of our Term Preferred Stock are subordinated to the rights of holders of our indebtedness. Therefore, dividends, distributions and other payments to holders of Term Preferred Stock in liquidation or otherwise may be subject to prior payments due to the holders of our indebtedness. In addition, under some circumstances the 1940 Act may provide debt holders with voting rights that are superior to the voting rights of holders of the Term Preferred Stock.

Holders of our Term Preferred Stock will be subject to inflation risk.

Inflation is the reduction in the purchasing power of money resulting from the increase in the price of goods and services. Inflation risk is the risk that the inflation-adjusted, or “real,” value of an investment in Term Preferred Stock or the income from that investment will be worth less in the future. As inflation occurs, the real value of the Term Preferred Stock and dividends payable on such shares declines.

Holders of our Term Preferred Stock will bear reinvestment risk.

Given the five-year term and potential for early redemption of the Term Preferred Stock, holders of such shares may face an increased reinvestment risk, which is the risk that the return on an investment purchased with proceeds from the sale or redemption of the Term Preferred Stock may be lower than the return previously obtained from the investment in such shares.

Holders of our Term Preferred Stock will bear dividend risk.

We may be unable to pay dividends on the Term Preferred Stock under some circumstances. The terms of our indebtedness preclude the payment of dividends in respect of equity securities, including the Term Preferred Stock, under certain conditions.

There is a risk of delay in our redemption of our Term Preferred Stock, and we may fail to redeem such securities as required by their terms.

We will generally make investments in private companies whose securities are not traded in any public market. Substantially all of the investments we presently hold and the investments we expect to acquire in the future are, and will be, subject to legal and other restrictions on resale and will otherwise be less liquid than publicly-traded securities. The illiquidity of our investments may make it difficult for us to obtain cash equal to the value at which we record our investments quickly if a need arises. If we are unable to obtain sufficient liquidity prior to the term redemption date, we may be forced to engage in a partial redemption or to delay a required redemption. If such a partial redemption or delay were to occur, the market price of the Term Preferred Stock might be adversely affected.

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Other Risks

We could face losses and potential liability if intrusion, viruses or similar disruptions to our technology jeopardize our confidential information, whether through breach of our network security or otherwise.

Maintaining our network security is of critical importance because our systems store highly confidential financial models and portfolio company information. Although we have implemented, and will continue to implement, security measures, our technology platform is and will continue to be vulnerable to intrusion, computer viruses or similar disruptive problems caused by transmission from unauthorized users. The misappropriation of proprietary information could expose us to a risk of loss or litigation.

Terrorist attacks, acts of war, or national disasters may affect any market for our common stock, impact the businesses in which we invest, and harm our business, operating results, and financial conditions.

Terrorist acts, acts of war, or national disasters have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future terrorist activities, military or security operations, or national 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 and national disasters are generally uninsurable.

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. Our Adviser is the current leaseholder of all properties in which we operate. We occupy these premises pursuant to the Advisory Agreement and Administration Agreement. Our Adviser and Administrator are headquartered in McLean, Virginia, a suburb of Washington, D.C., and our Adviser also has operations in several other states.

ITEM 3. LEGAL PROCEEDINGS

We are not currently subject to any material legal proceedings, nor, to our knowledge, is any material legal proceeding threatened against us.

ITEM 4. MINE SAFETY DISCLOSURES

Not Applicable.

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PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our common stock is traded on the Nasdaq Global Select Market (“NASDAQ”) under the symbol “GAIN” The following table reflects, by quarter, the high and low sales prices per share of our common stock on the NASDAQ, the sales prices as a percentage of net asset value (“NAV”) and quarterly distributions declared per share for each fiscal quarter during the last two fiscal years. Amounts presented for each fiscal quarter of 2012 and 2011 represent the cumulative amount of the distributions declared per share for the months composing such quarter.

As of May 17, 2012, there were approximately 28 record owners of our common stock.

Distributions

We currently intend to distribute in the form of cash distributions a minimum of 90% of our ordinary income and short-term capital gains, if any, on a quarterly basis to our stockholders in the form of monthly distributions. We intend to retain some or all of our long-term capital gains, but to designate the retained amount as a deemed distribution, after giving effect to any prior year realized losses that are carried forward, to supplement our equity capital and support the growth of our portfolio. However, in certain cases our Board of Directors may choose to distribute our net realized long-term capital gains by paying a one-time special distribution. Additionally, our Credit Facility contains a covenant that limits payments of distributions to our aggregate net investment income for each of the twelve month periods ending March 31, 2011, 2012, 2013 and 2014.

Recent Sales of Unregistered Securities and Purchases of Equity Securities

We did not sell any unregistered securities or repurchase any of our securities during the fiscal year ended March 31, 2012.

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ITEM 6. SELECTED FINANCIAL DATA

The following consolidated selected financial data as of and for the fiscal years ended March 31, 2012, 2011, 2010, 2009 and 2008, are derived from our audited consolidated financial statements. The other data included at the bottom of the table is unaudited. The data should be read in conjunction with our consolidated financial statements and notes thereto and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this report.

GLADSTONE INVESTMENT CORPORATION

CONSOLIDATED SELECTED FINANCIAL AND OTHER DATA

(DOLLAR AMOUNTS IN THOUSANDS, EXCEPT PER SHARE AND PER UNIT DATA)

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The following analysis of our financial condition and results of operations should be read in conjunction with our financial statements and the notes thereto contained elsewhere in this Form 10-K. Except per share amounts, dollar amounts are in thousands unless otherwise indicated.

OVERVIEW

General

We were incorporated under the General Corporation Laws of the State of Delaware on February 18, 2005. We were primarily established for the purpose of investing in subordinated loans, mezzanine debt, preferred stock and warrants to purchase common stock of small and medium-sized companies in connection with buyouts and other recapitalizations. We also invest in senior secured loans, common stock and, to a much lesser extent, senior and subordinated syndicated loans. Our investment objective is to generate both current income and capital gains through these debt and equity instruments. We operate as a closed-end, non-diversified management investment company and have elected to be treated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). In addition, for tax purposes, we have elected to be treated as a regulated investment company (“RIC”) under the Internal Revenue Code of 1986, as amended (the “Code”).

We focus on investing in small and medium-sized private U.S. businesses that meet certain criteria, including some but not all of the following: the potential for growth in cash flow, adequate assets for loan collateral, experienced management teams with a significant ownership interest in the borrower, profitable operations based on the borrower’s cash flow, reasonable capitalization of the borrower (usually by leveraged buyout funds or venture capital funds) and the potential to realize appreciation and gain liquidity in our equity position, if any. We anticipate that liquidity in our equity position will be achieved through a merger or acquisition of the borrower, a public offering of the borrower’s stock or by exercising our right to require the borrower to repurchase our warrants, though there can be no assurance that we will always have these rights. We lend to borrowers that need funds to finance growth, restructure their balance sheets or effect a change of control.

Business Environment

While economic conditions generally appear to be improving, we remain cautious about a long-term economic recovery. The recent recession in general, and the disruptions in the capital markets in particular, have impacted our liquidity options and increased the cost of debt and equity capital. Many of our portfolio companies, as well as those that we evaluate for possible investments, are impacted by these economic conditions. If these conditions persist, it may affect their ability to repay our loans or engage in a liquidity event, such as a sale, recapitalization or initial public offering.

Despite the challenges in these uncertain economic times, during the fiscal year ended March 31, 2012, we have been able to complete both a preferred stock public offering and a renewal and increase in borrowing capacity under our line of credit (our “Credit Facility”). In March 2012, we issued 1,600,000 shares of 7.125% Series A Cumulative Term Preferred Stock (our “Term Preferred Stock”) for gross proceeds of $40.0 million. In addition, in October 2012 we entered into a fourth amended and restated credit agreement that increased the commitment amount to $60.0 million, reduced the interest rate and extended the maturity of our Credit Facility until 2014. We discuss each of the foregoing in detail below under “Recent Developments.”

While conditions remain challenging, we are seeing an increase in the number of new investment opportunities consistent with our investing strategy of providing subordinated debt with equity enhancement features and direct equity in support of management and sponsor-led buyouts of small and medium-sized companies. These new investment opportunities translated into four new proprietary debt and equity deals during the year ended March 31, 2012. In April 2011, we invested $16.4 million in Mitchell Rubber Products, Inc. (“Mitchell”), which develops, mixes and molds rubber compounds for specialized applications in the non-tire rubber market. In August 2011, we invested $28.1 million in SOG Specialty Knives and Tools, LLC (“SOG”), which designs and produces specialty knives and tools for the hunting/outdoors, military/law enforcement and industrial markets. In September 2011, we invested $14.1 million in SBS Industries, Inc. (“SBS”), a manufacturer and value-added distributor of special fasteners and threaded screw products. In December 2011, we invested $19.6 million in Channel Technologies Group, LLC (“Channel Technologies”), which designs and manufactures products used in military, commercial and medical applications. Subsequent to our fiscal year end, in May 2012, we invested $9.5 million in Packerland Whey Products, Inc. (“Packerland”), a processor of raw fluid whey, specializing in the production of protein supplements for dairy and beef cattle. Over the past two years, we have invested approximately $123.5 million into seven new proprietary transactions.

The increased investing opportunities in the marketplace also presented opportunities for us to achieve realized gains and other income. In April 2011, we sold our equity investment in and received partial redemption of our preferred stock, while investing new subordinated debt, in Cavert II Holding Corporation (“Cavert”) as part of a recapitalization. The gross cash proceeds to us from the sale of our equity in Cavert were $5.6 million, resulting in a realized gain of $5.5 million. At the same time, we received $2.3 million

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in a partial redemption of our preferred stock, received $0.7 million in preferred dividends and invested $5.7 million in new subordinated debt of Cavert. In fiscal year 2011, we achieved a significant amount of liquidity and realized gains with the sales of A. Stucki Holding Corp. (“A. Stucki”) and Chase II Holding Corp. (“Chase”) for total proceeds of $83.9 million and an aggregate realized gain of $23.5 million. In addition, we recorded $9.1 million of other income, including success fee and dividend income, resulting from these exits.

The A. Stucki, Chase, and Cavert sales were our first management-supported buyout liquidity events, and each was an equity investment success, highlighting our investment strategy of striving to achieve returns through current income from debt investments and capital gains from equity investments. We will strive to utilize the resulting borrowing availability under our Credit Facility to make new investments to potentially increase our net investment income and generate capital gains to enhance our ability to pay dividends to our stockholders.

Due to losses realized during the fiscal year ended March 31, 2010, which occurred in connection with the Syndicated Loan Sales, described below, which were available to offset future realized gains, we were not required to distribute the realized gains from the A. Stucki, Chase and Cavert sales to stockholders during the fiscal years ended March 31, 2012 and 2011. The economic conditions in 2008 and 2009 had affected the general availability of credit, and, as a result, during the quarter ended June 30, 2009, we sold 29 senior syndicated loans that were held in our portfolio of investments at March 31, 2009, to various investors in the syndicated loan market (the “Syndicated Loan Sales”) to repay amounts outstanding under our prior line of credit with Deutsche Bank AG (the “Prior Credit Facility”), which matured in April 2009. These loans, in aggregate, had a cost value of approximately $104.2 million, or 29.9% of the cost of our total investments, and an aggregate fair value of approximately $69.8 million, or 22.2% of the fair value of our total investments, at March 31, 2009. As a result of the settlement of the Syndicated Loan Sales and other exits, at March 31, 2012, we no longer have any syndicated loan investments. Collectively, these sales have changed our asset composition in a manner that has affected our ability to satisfy certain elements of the Code’s rules for maintenance of our RIC status. To maintain our status as a RIC, in addition to other requirements, as of the close of each quarter of our taxable year, we must meet the asset diversification test, which requires that at least 50% of the value of our assets consist of cash, cash items, U.S. government securities or certain other qualified securities (the “50% threshold”). During the quarter ended March 31, 2012, we again fell below the 50% threshold.

Failure to meet the 50% threshold alone will not result in our loss of RIC status. In circumstances where the failure to meet the 50% threshold is the result of fluctuations in the value of assets, including as a result of the sale of assets, we will still be deemed to have satisfied the 50% threshold and, therefore, maintain our RIC status, provided that we have not made any new investments, including additional investments in our existing portfolio companies (such as advances under outstanding lines of credit), since the time that we fell below the 50% threshold. At March 31, 2012, we satisfied the 50% threshold primarily through the purchase of short-term qualified securities, which was funded through a short-term loan agreement. Subsequent to the March 31, 2012 measurement date, the short-term qualified securities matured and we repaid the short-term loan. See “—Recent Developments—Short-Term Loan” for more information regarding this transaction. As of the date of this filing, we remain below the 50% threshold.

Thus, while we currently qualify as a RIC despite our recent inability to meet the 50% threshold and potential inability to do so in the future, if we make any new or additional investments before regaining compliance with the asset diversification test, our RIC status will be threatened. If we make a new or additional investment and fail to regain compliance with the 50% threshold on the next quarterly measurement date following such investment, we will be in non-compliance with the RIC rules and will have thirty days to “cure” our failure to meet the 50% threshold to avoid the loss of our RIC status. Potential cures for failure of the asset diversification test include raising additional equity or debt capital, or changing the composition of our assets, which could include full or partial divestitures of investments, such that we would once again exceed the 50% threshold on a consistent basis.

Until the composition of our assets is above the required 50% threshold on a consistent basis, we will continue to seek to employ similar purchases of qualified securities using short-term loans that would allow us to satisfy the 50% threshold, thereby allowing us to make additional investments. There can be no assurance, however, that we will be able to enter into such a transaction on reasonable terms, if at all. We also continue to explore a number of other strategies, including changing the composition of our assets, which could include full or partial divestitures of investments, and raising additional equity or debt capital, such that we would once again exceed the 50% threshold on a consistent basis. Our ability to implement any of these strategies will be subject to market conditions and a number of risks and uncertainties that are, in part, beyond our control.

Challenges in the current market are intensified for us by certain regulatory limitations under the Code and the 1940 Act, as well as contractual restrictions under the agreement governing our Credit Facility that further constrain our ability to access the capital markets. To maintain our qualification as a RIC, we must satisfy, among other requirements, an annual distribution requirement to pay out at least 90% of our ordinary income and short-term capital gains to our stockholders. Because we are required to distribute our income in this manner, and because the illiquidity of many of our investments makes it difficult for us to finance new investments through the sale of current investments, our ability to make new investments is highly dependent upon external financing. Our external financing sources include the issuance of equity securities, debt securities or other leverage, such as borrowings under our Credit Facility. Our ability to seek external debt financing, to the extent that it is available under current market conditions, is further subject to the asset coverage limitations of the 1940 Act, which require us to have an asset coverage ratio (as defined in Section 18(h) of the 1940 Act), of at least 200% on our Senior Securities.

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Market conditions have also affected the trading price of our common stock and thus our ability to finance new investments through the issuance of equity. On May 18, 2012, the closing market price of our common stock was $6.91, which represented a 26.3% discount to our March 31, 2012, net asset value (“NAV”) per share of $9.38. When our stock trades below NAV, our ability to issue equity is constrained by provisions of the 1940 Act, which generally prohibits the issuance and sale of our common stock at an issuance price below NAV per share without stockholder approval other than through sales to our then-existing stockholders pursuant to a rights offering. At our annual meeting of stockholders held on August 4, 2011, our stockholders approved a proposal which authorizes us to sell shares of our common stock at a price below our then current NAV per share, subject to certain limitations, including that the cumulative number of shares issued and sold pursuant to such authority does not exceed 25% of our then outstanding common stock immediately prior to each such sale, for a period of one year from the date of approval, provided that our Board of Directors makes certain determinations prior to any such sale. This proposal is in effect for one year from the date of stockholder approval. At our next annual stockholders meeting scheduled to take place on August 9, 2012, we will ask our stockholders to vote in favor of this proposal for another year.

The unsteady economic recovery may also continue to decrease the value of collateral securing some of our loans, as well as the value of our equity investments, which has impacted and may continue to impact our ability to borrow under our Credit Facility. Additionally, our Credit Facility contains covenants regarding the maintenance of certain minimum loan concentrations and net worth covenants, which are affected by the decrease in value of our portfolio. Failure to meet these requirements would result in a default which, if we are unable to obtain a waiver from our lenders, would result in the acceleration of our repayment obligations under our Credit Facility. As of March 31, 2012, we were in compliance with all of the Credit Facility’s covenants.

We expect that, given these regulatory and contractual constraints in combination with current market conditions, debt and equity capital may be costly or difficult for us to access in the near term. However, in light of the general stabilization of our portfolio valuations over the past two years and increased investing opportunities that we see in our target markets, as demonstrated by our seven originated investments totaling $123.5 million, we are cautiously optimistic about the long-term prospects for the U.S. economy and will continue our strategy of making conservative investments in businesses that we believe will weather the current economic conditions and that are likely to produce attractive long-term returns for our stockholders. Despite the liquidity that we were able to generate with the A. Stucki, Chase and Cavert transactions, our recent public offering of Term Preferred Stock and the increased commitment on our Credit Facility, a significant amount of this liquidity has been used in our origination activity. Future investment activity may be dependent on our access to capital, which may be limited or challenged and other events beyond our control may still encumber our ability to make new investments in the future.

Investment Highlights

During the fiscal year ended March 31, 2012, we disbursed $76.9 million in new debt and equity investments and extended $14.4 million of investments to existing portfolio companies through revolver draws or additions to term notes. Since our initial public offering in June 2005 through March 31, 2012, we have made 168 investments in 94 companies for a total of approximately $716.5 million, before giving effect to principal repayments on investments and divestitures.

Investment Activity

During our fiscal year ended March 31, 2012, the following significant transactions occurred:

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Refer to Note 15, “Subsequent Events,” in our Consolidated Financial Statements included elsewhere in this Form 10-K for investment activity occurring subsequent to March 31, 2012.

Recent Developments

Renewal of Credit Facility

On October 26, 2011, we entered into a fourth amended and restated credit agreement through Gladstone Business Investment, LLC (“Business Investment”) with Branch Banking and Trust Company (“BB&T”) as administrative agent and BB&T and KeyBank National Association (“Keybank”) as joint lead arrangers, managing agents and committed lenders to renew our Credit Facility. The commitment amount of our revolving line of credit was increased to $60 million, the interest rate was reduced and the maturity was extended. Subject to certain terms and conditions, the Credit Facility may be expanded to a total of $175.0 million through the addition of other committed lenders to the facility. The Credit Facility matures on October 25, 2014, and, if not renewed or extended by the Maturity Date, all principal and interest will be due and payable on or before October 25, 2015 (one year after the Maturity Date). Advances under the Credit Facility will generally bear interest at 30-day LIBOR plus 3.75% per annum, with an unused fee of 0.50% on undrawn amounts. There are two one-year extension options, to be agreed upon by all parties, which may be exercised, subject to compliance with the covenants set forth in the credit agreement, on or before October 26, 2012 and October 26, 2013, as applicable. We incurred fees of $0.7 million in connection with this amendment.

Short-Term Loan

For each quarter end since June 30, 2009 (the “measurement dates”), we satisfied the 50% threshold to maintain our status as a RIC, in part, through the purchase of short-term qualified securities, which were funded primarily through a short-term loan agreement. Subsequent to each of the measurement dates, the short-term qualified securities matured, and we repaid the short-term loan, at which time we again fell below the 50% threshold.

Therefore, similar to previous quarter ends, to maintain our status as a RIC, we purchased $85.0 million of short-term United States Treasury Bills (“T-Bills”) through Jefferies & Company, Inc. (“Jefferies”) on March 28, 2012. As these T-Bills have a maturity of less than three months, we consider them to be cash equivalents and include them in cash and cash equivalents on our accompanying Consolidated Statement of Assets and Liabilities as of March 31, 2012. The T-Bills were purchased on margin using $9.0 million in cash and the proceeds from a $76.0 million short-term loan from Jefferies with an effective annual interest rate of approximately 0.64%. On April 5, 2012, when the T-Bills matured, we repaid the $76.0 million loan from Jefferies and received the $9.0 million margin payment sent to Jefferies to complete the transaction.

Term Preferred Stock Offering

On March 6, 2012, we completed an offering of 1,400,000 shares of Term Preferred Stock, at a public offering price of $25.00 per share under a shelf registration statement on Form N-2 (File No. 333-160720). Net proceeds of the offering, after deducting underwriting discounts and offering expenses borne by us were approximately $33.2 million, a portion of which was used to repay borrowings under our Credit Facility, with the remaining proceeds being held to make additional investments and for general corporate purposes. On March 13, 2012, the underwriters purchased an additional 200,000 shares of our Term Preferred Stock to cover over-allotments, for which we received net proceeds, after deducting underwriting discounts, of $4.8 million. Refer to Note 7—Mandatorily Redeemable Preferred Stock in our Consolidated Financial Statements included elsewhere in this Form 10-K for further discussion of our Term Preferred Stock offering.

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Our Adviser and Administrator

Investment Advisory and Management Agreement

Under the amended and restated investment advisory and management agreement with our Adviser (the “Advisory Agreement”), we pay our Adviser an annual base management fee of 2% of our average gross assets, which is defined as total assets, including investments made with proceeds of borrowings, less any uninvested cash or cash equivalents resulting from borrowings, valued at the end of the two most recently completed quarters and appropriately adjusted for any share issuances or repurchases during the current quarter.

We also pay our Adviser a two-part incentive fee under the Advisory Agreement. The first part of the incentive fee is an income-based incentive fee which rewards our Adviser if our quarterly net investment income (before giving effect to any incentive fee) exceeds 1.75% of our net assets (the “hurdle rate”). The second part of the incentive fee is a capital gains-based incentive fee that is determined and payable in arrears as of the end of each fiscal year (or upon termination of the Advisory Agreement, as of the termination date) and equals 20% of our realized capital gains as of the end of the fiscal year. In determining the capital gains-based incentive fee payable to our Adviser, we will calculate the cumulative aggregate realized capital gains and cumulative aggregate realized capital losses since our inception and the aggregate unrealized capital depreciation as of the date of the calculation, as applicable, with respect to each of the investments in our portfolio. The Adviser has not earned the capital gains-based portion of the incentive fee since our inception.

We pay our direct expenses, including, but not limited to, directors’ fees, legal and accounting fees, stockholder-related expenses and directors and officers insurance under the Advisory Agreement.

Since April 2008, our Board of Directors has accepted from our Adviser unconditional and irrevocable voluntary waivers on a quarterly basis to reduce the annual 2.0% base management fee on senior syndicated loans to 0.5% to the extent that proceeds resulting from borrowings were used to purchase such syndicated loan participations. In addition to the base management and incentive fees under the Advisory Agreement, 50% of certain fees and 100% of others received by the Adviser from our portfolio companies are credited against the investment advisory fee paid to the Adviser.

The Adviser also services our loan portfolio pursuant to a loan servicing agreement with Business Investment in return for a 2.0% annual fee, based on the monthly aggregate outstanding loan balance of the loans pledged under our Credit Facility.

On July 12, 2011, our Board of Directors approved the renewal of the Advisory Agreement with our Adviser through August 31, 2012. We expect that the Board of Directors will approve a further one-year renewal in July 2012.

Administration Agreement

We have entered into an administration agreement with our Administrator (the “Administration Agreement”), whereby we pay separately for administrative services. The Administration Agreement provides for payments equal to our allocable portion of the Administrator’s overhead expenses in performing its obligations under the Administration Agreement, including, but not limited to, rent and salaries and benefits expenses of our chief financial officer and treasurer, chief compliance officer, internal counsel and their respective staffs. Our allocable portion of expenses is generally derived by multiplying our Administrator’s total allocable expenses by the percentage of our total assets at the beginning of the quarter in comparison to the total assets at the beginning of the quarter of all companies managed by the Adviser under similar agreements. On July 12, 2011, our Board of Directors approved the renewal of this Administration Agreement with our Administrator through August 31, 2012. We expect that our Board of Directors will approve a further one-year renewal in July 2012.

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RESULTS OF OPERATIONS

Comparison of the Fiscal Year Ended March 31, 2012, to the Fiscal Year Ended March 31, 2011