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Filed Pursuant to Rule 497
Registration No. 333-175160

PROSPECTUS SUPPLEMENT

(To prospectus dated October 21, 2011)

$60,000,000

7.00% Senior Notes due 2019

Triangle Capital Corporation is organized as an internally-managed, non-diversified closed-end management investment company that has elected to be treated as a business development company under the Investment Company Act of 1940. We are offering $60,000,000 in aggregate principal amount of 7.00% senior notes due 2019, which we refer to as the Notes. The Notes will mature on March 15, 2019. We will pay interest on the Notes on March 15, June 15, September 15 and December 15 of each year, beginning June 15, 2012. We may redeem the Notes in whole or in part at any time or from time to time on or after March 15, 2015, at the redemption price of par, plus accrued interest, as discussed under the caption “Summary of Specific Terms of the Notes and the Offering—Optional redemption” and “Description of the Notes—Optional Redemption” in this prospectus supplement. The Notes will be issued in minimum denominations of $25 and integral multiples of $25 in excess thereof.

The Notes will be our direct senior unsecured obligations and rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by Triangle Capital Corporation.

We intend to list the Notes on the New York Stock Exchange and we expect trading to commence thereon within 30 days of the original issue date under the trading symbol “TCC.” The Notes are expected to trade “flat.” This means that purchasers will not pay, and sellers will not receive, any accrued and unpaid interest on the Notes that is not included in the trading price. Currently, there is no public market for the Notes.

Please read this prospectus supplement and the accompanying prospectus before investing and keep them for future reference. This prospectus supplement and the accompanying prospectus contain important information about us that a prospective investor should know before investing in the Notes. We file annual, quarterly and current reports, proxy statements and other information about us with the Securities and Exchange Commission. This information is available free of charge by contacting us at 3700 Glenwood Avenue, Suite 530, Raleigh, North Carolina 27612, or by telephone by calling collect at (919) 719-4770, or on our website at www.tcap.com. The information on our website is not incorporated by reference into this prospectus supplement or the accompanying prospectus. The SEC also maintains a website at www.sec.gov that contains such information.

Investing in the Notes is speculative and involves numerous risks, including the risk associated with the use of leverage. For more information regarding these risks, please see “Risk Factors” beginning on page S-11 of this prospectus supplement and on page 21 of the accompanying prospectus.

Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or determined if either this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

(1) Before deducting expenses payable by us related to this offering, estimated at $300,000.

The public offering price set forth above does not include accrued interest, if any. Interest on the Notes will accrue from March 2, 2012 and must be paid by the purchaser if the Notes are delivered after March 2, 2012.

The underwriters may also purchase up to an additional $9,000,000 total aggregate principal amount of Notes offered hereby, to cover over-allotments, if any, within 30 days of the date of this prospectus supplement. If the underwriters exercise this option in full, the total public offering price will be $69,000,000, the total underwriting discount (sales load) paid by us will be $2,070,000, and total proceeds, before expenses, will be $66,930,000.

THE NOTES ARE NOT DEPOSITS OR OTHER OBLIGATIONS OF A BANK AND ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENT AGENCY.

Delivery of the Notes in book-entry form only through The Depository Trust Company will be made on or about March 2, 2012.

Joint Book-Running Managers

Lead Manager

Baird

Co-Managers

The date of this prospectus supplement is February 28, 2012.

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Prospectus Supplement

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ABOUT THIS PROSPECTUS

This document is in two parts. The first part is the prospectus supplement, which describes the specific terms of the Notes we are offering and certain other matters relating to us. The second part, the accompanying prospectus, gives more general information about the securities which we may offer from time to time, some of which may not apply to the Notes offered by this prospectus supplement.

If information varies between this prospectus supplement and the accompanying prospectus, you should rely only on such information in this prospectus supplement. The information contained or incorporated by reference in this prospectus supplement supersedes any inconsistent information included or incorporated by reference in the accompanying prospectus. In various places in this prospectus supplement and the accompanying prospectus, we refer you to other sections of such documents for additional information by indicating the caption heading of such other sections. The page on which each principal caption included in this prospectus supplement and the accompanying prospectus can be found is listed in the table of contents above. All such cross references in this prospectus supplement are to captions contained in this prospectus supplement and not in the accompanying prospectus, unless otherwise stated.

Unless we have indicated otherwise, all information in this prospectus supplement assumes that the underwriters do not exercise their option to purchase an additional principal amount of Notes from us to cover any over-allotments. Unless we have indicated otherwise, or the context otherwise requires, references in this prospectus supplement to “$” or “dollar” are to the lawful currency of the United States.

YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS. WE HAVE NOT, AND THE UNDERWRITERS HAVE NOT, AUTHORIZED ANY OTHER PERSON TO PROVIDE YOU WITH DIFFERENT OR ADDITIONAL INFORMATION. IF ANYONE PROVIDES YOU WITH DIFFERENT OR ADDITIONAL INFORMATION, YOU SHOULD NOT RELY ON IT. WE ARE NOT, AND THE UNDERWRITERS ARE NOT, MAKING AN OFFER TO SELL THESE SECURITIES IN ANY JURISDICTION WHERE THE OFFER OR SALE IS NOT PERMITTED. YOU SHOULD ASSUME THAT THE INFORMATION APPEARING IN THIS PROSPECTUS SUPPLEMENT, THE ACCOMPANYING PROSPECTUS AND ANY DOCUMENTS INCORPORATED BY REFERENCE IS ACCURATE ONLY AS OF THE RESPECTIVE DATES OF SUCH INFORMATION, REGARDLESS OF THE TIME OF DELIVERY OF THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS OR ANY SALES OF THE SECURITIES. OUR BUSINESS, FINANCIAL CONDITION, RESULTS OF OPERATIONS AND PROSPECTS MAY HAVE CHANGED SINCE THOSE DATES.

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RISK FACTORS

The Notes will be unsecured and therefore will be effectively subordinated to any secured indebtedness we have currently incurred or may incur in the future.

The Notes will not be secured by any of our assets or any of the assets of our subsidiaries. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. We currently do not have any indebtedness outstanding under the Credit Facility. The indebtedness under the Credit Facility is effectively senior to the Notes to the extent of the value of the assets securing such indebtedness.

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

The Notes are obligations exclusively of Triangle and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. A significant portion of the indebtedness required to be consolidated on our balance sheet is held through our SBIC subsidiaries. For example, as of September 30, 2011, Triangle SBIC had issued the statutory maximum of $150.0 million of SBA-guaranteed debentures and Triangle SBIC II had issued the statutory maximum of $75.0 million of SBA-guaranteed debentures. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See “The Company—Recent Developments” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Financing Transactions” in this prospectus supplement for more detail on the SBA-guaranteed debentures.

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

The indenture under which the Notes will be issued will contain limited protection for holders of the Notes.

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

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In addition, the indenture will not require us to offer to purchase the Notes in connection with a change of control or any other event.

Furthermore, the terms of the indenture and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow, or liquidity other than as described under “Description of the Notes—Events of Default.” Any changes, while unlikely, to the financial tests in the 1940 Act could affect the terms of the Notes.

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

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

An active trading market for the Notes may not develop, which could limit the market price of the Notes or your ability to sell them.

The Notes are a new issue of debt securities for which there currently is no trading market. We intend to list the Notes on the NYSE within 30 days of the original issue date under the symbol “TCC.” Although we expect the Notes to be listed on the NYSE, we cannot provide any assurances that an active trading market will develop for the Notes or that you will be able to sell your Notes. If the Notes are traded after their initial issuance, they may trade at a discount from their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, general economic conditions, our financial condition, performance and prospects and other factors. The underwriters have advised us that they intend to make a market in the Notes, but they are not obligated to do so. The underwriters may discontinue any market-making in the Notes at any time at their sole discretion. Accordingly, we cannot assure you that a liquid trading market will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

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

Any default under the agreements governing our indebtedness, including a default under the Credit Facility or other indebtedness to which we may be a party that is not waived by the required lenders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness (including the Credit Facility), we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders under the Credit Facility or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. If our operating performance declines, we may in the future need to seek to obtain waivers from the required lenders under the Credit Facility or other debt that we may incur in the future to avoid being in default. If we breach our covenants under the Credit Facility or other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders. If this occurs, we would be in default under the Credit Facility or other debt, the lenders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facility has, and any future credit facilities will likely have, customary cross-default provisions, if the indebtedness under the Notes, the Credit Facility or under any future credit facility is accelerated, we may be unable to repay or finance the amounts due. See “Description of the Notes.”

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SELECTED CONDENSED CONSOLIDATED FINANCIAL AND OTHER DATA

The selected historical financial and other data below reflects the consolidated operations of Triangle Capital Corporation and its subsidiaries, including Triangle SBIC and Triangle SBIC II. The selected financial data at and for the fiscal years ended December 31, 2006, 2007, 2008, 2009 and 2010 have been derived from our financial statements that have been audited by Ernst & Young LLP, an independent registered public accounting firm. Financial information prior to our initial public offering in 2007 is that of Triangle SBIC, which is Triangle Capital Corporation’s predecessor. Interim financial information for the nine months ended September 30, 2011 is derived from our unaudited financial statements, and in the opinion of management, reflects all adjustments (consisting only of normal recurring adjustments) that are necessary to present fairly the results of such interim periods. Interim results for the nine months ended September 30, 2011 are not necessarily indicative of the results that may be expected for the fiscal year ended December 31, 2011. You should read this selected financial and other data in conjunction with our “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the financial statements and notes thereto included in this prospectus supplement and accompanying prospectus.

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USE OF PROCEEDS

We estimate that the net proceeds we will receive from the sale of the $60,000,000 million aggregate principal amount of Notes in this offering will be approximately $57,900,000 million (or approximately $66,630,000 million if the underwriters fully exercise their over-allotment option), in each case assuming a public offering price of 100.00% of par, after deducting the underwriting discount of $1,800,000 million (or approximately $2,070,000 million if the underwriters fully exercise their over-allotment option) payable by us and estimated offering expenses of approximately $300,000 payable by us.

We intend to use the net proceeds of this offering to invest in lower middle market companies in accordance with our investment objective and strategies and for working capital and general corporate purposes. Pending such use, we will invest the net proceeds of this offering primarily in short-term securities consistent with our BDC election and our election to be taxed as a RIC. See “Regulation — Temporary Investments” in the accompanying prospectus.

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CAPITALIZATION

The following table sets forth our capitalization as of September 30, 2011.

This table should be read in conjunction with our “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our financial statements and notes thereto included in this prospectus supplement and the accompanying prospectus.

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RATIOS OF EARNINGS TO FIXED CHARGES

For the years ended December 31, 2006, 2007, 2008, 2009, and 2010 and the nine months ended September 30, 2011, the ratios of earnings to fixed charges of the Company, computed as set forth below, were as follows:

For purposes of computing the ratios of earnings to fixed charges, earnings represent net increase in net assets resulting from operations plus (or minus) income tax provision (benefit) including excise tax expense plus fixed charges. Fixed charges include interest and credit facility fees and amortization of deferred financing fees.

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PRICE RANGE OF COMMON STOCK AND DISTRIBUTIONS

Aside from the Notes offered by this prospectus supplement, our only class of securities outstanding is our common stock, which is traded on the NYSE under the symbol “TCAP.” Prior to December 28, 2010, our common stock was traded on the Nasdaq Global Market. The following table sets forth, for each fiscal quarter from 2011, the range of high and low sales prices of our common stock as reported on the NYSE, as applicable, the sales price as a percentage of our net asset value, or NAV, and the distributions declared by us for each fiscal quarter. The stock quotations are inter-dealer quotations and do not include mark-ups, mark-downs or commissions and as such do not necessarily represent actual transactions.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The information in this section contains forward-looking statements that involve risks and uncertainties. Please see “Special Note Regarding Forward-Looking Statements” in this prospectus supplement and “Risk Factors” and “Special Note Regarding Forward-Looking Statements” in the accompanying prospectus for a discussion of the uncertainties, risks and assumptions associated with these statements. You should read the following discussion in conjunction with the combined and consolidated financial statements and related notes and other financial information appearing elsewhere in this prospectus supplement and the accompanying prospectus.

The following discussion is designed to provide a better understanding of our unaudited consolidated financial statements for the nine months ended September 30, 2011, including a brief discussion of our business, key factors that impacted our performance and a summary of our operating results. The following discussion should be read in conjunction with the unaudited financial statements and the notes thereto included elsewhere in this prospectus supplement, and the audited financial statements and notes thereto and Management’s Discussion and Analysis of Financial Condition and Results of Operations for the year ended December 31, 2010 contained in the accompanying prospectus. Historical results and percentage relationships among any amounts in the financial statements are not necessarily indicative of trends in operating results for any future periods.

Overview of Our Business

We are a Maryland corporation which has elected to be treated and operates as an internally managed business development company, or BDC, under the Investment Company Act of 1940, or 1940 Act. Our wholly owned subsidiaries, Triangle Mezzanine Fund LLLP, or Triangle SBIC, and Triangle Mezzanine Fund II LP, or Triangle SBIC II, are licensed as small business investment companies, or SBICs, by the United States Small Business Administration, or SBA. In addition, Triangle SBIC has also elected to be treated as a BDC under the 1940 Act. We, Triangle SBIC and Triangle SBIC II invest primarily in debt instruments, equity investments, warrants and other securities of lower middle market privately held companies located in the United States.

Our business is to provide capital to lower middle market companies in the United States. We define lower middle market companies as those with annual revenues between $10.0 and $100.0 million. We focus on investments in companies with a history of generating revenues and positive cash flows, an established market position and a proven management team with a strong operating discipline. Our target portfolio company has annual revenues between $20.0 and $100.0 million and annual earnings before interest, taxes, depreciation and amortization, or EBITDA, between $3.0 and $20.0 million.

We invest primarily in subordinated debt securities secured by second lien security interests in portfolio company assets, coupled with equity interests. On a more limited basis, we also invest in senior debt securities secured by first lien security interests in portfolio companies. Our investments generally range from $5.0 to $20.0 million per portfolio company. In certain situations, we partner with other funds to provide larger financing commitments.

We generate revenues in the form of interest income, primarily from our investments in debt securities, loan origination and other fees and dividend income. Fees generated in connection with our debt investments are recognized over the life of the loan using the effective interest method or, in some cases, recognized as earned. In addition, we generate revenue in the form of capital gains, if any, on warrants or other equity-related securities that we acquire from our portfolio companies. Our debt investments generally have a term of between three and seven years and typically bear interest at fixed rates between 12.0% and 17.0% per annum. Certain of our debt investments have a form of interest, referred to as payment-in-kind, or PIK, interest, that is not paid currently but is instead accrued and added to the loan balance and paid at the end of the term. In our negotiations with potential portfolio companies, we generally seek to minimize PIK interest. Cash interest on our debt investments is generally payable monthly; however, some of our debt investments pay cash interest on a quarterly basis. As of

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both September 30, 2011, and December 31, 2010, the weighted average yield on our outstanding debt investments other than non-accrual debt investments (including PIK interest) was approximately 15.1%. The weighted average yield on all of our outstanding investments (including equity and equity-linked investments but excluding non-accrual debt investments) was approximately 14.0% and 13.7% as of September 30, 2011 and December 31, 2010, respectively. The weighted average yield on all of our outstanding investments (including equity and equity-linked investments and non-accrual debt investments) was approximately 13.6% and 12.9% as of September 30, 2011 and December 31, 2010, respectively.

Triangle SBIC and Triangle SBIC II are eligible to issue debentures to the SBA, which pools these with debentures of other SBICs and sells them in the capital markets at favorable interest rates, in part as a result of the guarantee of payment from the SBA. We invest these funds in portfolio companies. We intend to continue to operate Triangle SBIC and Triangle SBIC II as SBICs, subject to SBA approval, and to utilize the proceeds of the sale of SBA-guaranteed debentures, referred to herein as SBA leverage, to enhance returns to our stockholders.

Portfolio Composition

The total value of our investment portfolio was $464.4 million as of September 30, 2011, as compared to $326.0 million as of December 31, 2010. As of September 30, 2011, we had investments in 60 portfolio companies with an aggregate cost of $457.4 million. As of December 31, 2010, we had investments in 48 portfolio companies with an aggregate cost of $324.0 million. As of both September 30, 2011 and December 31, 2010, none of our portfolio investments represented greater than 10% of the total fair value of our investment portfolio.

As of September 30, 2011 and December 31, 2010, our investment portfolio consisted of the following investments:

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Investment Activity

During the nine months ended September 30, 2011, we made fourteen new investments totaling approximately $123.6 million, debt investments in ten existing portfolio companies totaling approximately $60.2 million and five equity investments in existing portfolio companies totaling approximately $0.3 million. We had seven portfolio company loans repaid at par totaling approximately $39.8 million, which resulted in realized gains totaling approximately $0.8 million, and received normal principal repayments and partial loan prepayments totaling approximately $6.6 million in the nine months ended September 30, 2011. In addition, we sold two equity investments in portfolio companies for total proceeds of approximately $17.0 million, resulting in realized gains totaling approximately $13.2 million, and recognized a realized loss of approximately $3.0 million on the conversion of a debt investment in a portfolio company to equity.

During the nine months ended September 30, 2010, we made nine new investments totaling approximately $69.7 million, eight additional debt investments in existing portfolio companies totaling approximately $17.8 million and five additional equity investments in existing portfolio companies totaling approximately $0.7 million. In addition, we sold three equity investments in portfolio companies for total proceeds of approximately $5.4 million, resulting in realized gains totaling approximately $4.0 million, and converted a subordinated debt investment in one portfolio company to equity, resulting in a realized loss of approximately $3.0 million. We also sold a convertible note investment in a portfolio company for proceeds of approximately $2.3 million, resulting in a realized gain of approximately $0.9 million. We had nine portfolio company loans repaid at par totaling approximately $43.0 million and received normal principal repayments and partial loan prepayments totaling approximately $3.3 million in the nine months ended September 30, 2010.

Total portfolio investment activity for the nine months ended September 30, 2011 and 2010 was as follows:

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Non-Accrual Assets

As of September 30, 2011, the fair value of our non-accrual assets was approximately $7.3 million, which comprised 1.6% of the total fair value of our portfolio, and the cost of our non-accrual assets was approximately $11.0 million, which comprised 2.4% of the total cost of our portfolio. As of December 31, 2010, the fair value of our non-accrual assets was approximately $9.6 million, which comprised 3.0% of the total fair value of our portfolio, and the cost of our non-accrual assets was approximately $17.4 million, which comprised 5.4% of the total cost of our portfolio. Our non-accrual assets as of September 30, 2011 are as follows:

Gerli and Company

In November 2008, we placed our debt investment in Gerli and Company, or Gerli, on non-accrual status. As a result, under generally accepted accounting principles in the United States, or U.S. GAAP, we no longer recognize interest income on our debt investment in Gerli for financial reporting purposes. During 2008, we recognized an unrealized loss on our debt investment in Gerli of $1.2 million and in the year ended December 31, 2009, we recognized an additional unrealized loss on our debt investment in Gerli of $0.5 million. In the year ended December 31, 2010, we recognized an unrealized gain on our debt investment in Gerli of approximately $0.7 million. During the first quarter of 2011, we restructured our investment in Gerli. As a result of the restructuring, we received a new note from Gerli with a face amount of $3.0 million and a fair value of approximately $2.3 million and preferred stock with a liquidation preference of $0.4 million. Under the terms of the new note, interest on the note is payable only if Gerli meets certain covenants, with which they were not compliant as of September 30, 2011. In the nine months ended September 30, 2011, we recognized an unrealized loss on our new debt investment in Gerli of approximately $0.7 million. As of September 30, 2011, the cost of our new debt investment in Gerli was $3.0 million and the fair value was $2.3 million.

Fire Sprinkler Systems, Inc.

In October 2008, we placed our debt investment in Fire Sprinkler Systems, Inc., or Fire Sprinkler Systems, on non-accrual status. As a result, under U.S. GAAP, we no longer recognize interest income on our debt investment in Fire Sprinkler Systems for financial reporting purposes. During 2008, we recognized an unrealized loss of $1.3 million on our subordinated note investment in Fire Sprinkler Systems. In each of the years ended December 31, 2009 and 2010, we recognized additional unrealized losses on our debt investment in Fire Sprinkler Systems of $0.3 million. In the nine months ended September 30, 2011, we recorded an additional $0.5 million unrealized loss on our debt investment. As of September 30, 2011, the cost of our debt investment in Fire Sprinkler Systems was $2.8 million and the fair value of such investment was $0.4 million.

American De-Rosa Lamparts, LLC and Hallmark Lighting

In 2008, we recognized an unrealized loss of $1.2 million on our subordinated note investment in American De-Rosa Lamparts, LLC and Hallmark Lighting, or collectively, ADL. This unrealized loss reduced the fair value of our investment in ADL to $6.9 million as of December 31, 2008. Through August 31, 2009, we continued to receive interest payments from ADL in accordance with the loan agreement. In September 2009, we received notification from ADL’s senior lender that ADL was blocked from making interest payments to us. As a result, we placed our investment in ADL on non-accrual status and, under U.S. GAAP, we no longer recognize interest income on our investment in ADL for financial reporting purposes. In the year ended December 31, 2009, we recognized an additional unrealized loss on our investment in ADL of $3.2 million and in the first quarter of 2010, we recognized an unrealized gain on our investment in ADL of approximately $0.1 million. In June 2010, we converted approximately $3.0 million of our subordinated debt in ADL to equity as part of a restructuring, resulting in realized loss of approximately $3.0 million. As of September 30, 2011, the cost of our investment in ADL was approximately $5.2 million and the fair value of such investment was approximately $4.6 million.

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Results of Operations

Comparison of three months ended September 30, 2011 and September 30, 2010

Investment Income

For the three months ended September 30, 2011, total investment income was $16.2 million, a 66% increase from $9.8 million of total investment income for the three months ended September 30, 2010. This increase was primarily attributable to a $6.4 million increase in total loan interest, fee and dividend income (including PIK interest income) due to a net increase in our portfolio investments from September 30, 2010, to September 30, 2011, which includes a decrease in non-recurring fee income of approximately $0.9 million. Non-recurring fee income was approximately $0.1 million for the three months ended September 30, 2011 as compared to $1.0 million for the three months ended September 30, 2010.

Expenses

For the three months ended September 30, 2011, expenses increased by 40% to $5.8 million from $4.2 million for the three months ended September 30, 2010. The increase in expenses was primarily attributable to a $1.1 million increase in general and administrative expenses resulting from an increase in employee headcount, increased salary and incentive compensation costs and increased non-cash compensation expenses. In addition, the increase in expenses was also partially attributable to a $0.8 million increase in interest expense related to higher average balances of SBA-guaranteed debentures outstanding during the three months ended September 30, 2011 than in the comparable period in 2010 partially offset by a $0.3 million decrease in amortization of deferred financing fees associated with the early repayment of certain SBA guaranteed debentures in the third quarter of 2010.

Net Investment Income

As a result of the $6.4 million increase in total investment income and the $1.7 million increase in expenses, net investment income increased by 85% to $10.4 million for the three months ended September 30, 2011 as compared to net investment income of $5.6 million for the three months ended September 30, 2010.

Net Increase/Decrease in Net Assets Resulting From Operations

In the three months ended September 30, 2011, we realized a gain on the sale of one non-control/non-affiliate investment of approximately $1.0 million and a loss on the conversion of debt to equity of one control investment of $3.0 million. In addition, during the three months ended September 30, 2011, we recorded net unrealized appreciation of investments totaling approximately $9.0 million, comprised of unrealized appreciation on 23 investments totaling approximately $9.7 million, unrealized depreciation on 16 investments totaling approximately $2.8 million and net unrealized appreciation reclassification adjustments related to the realized gains and losses noted above totaling $2.2 million.

In the three months ended September 30, 2010, we realized a gain on the sale of one non-control/non-affiliate investment of approximately $0.3 million and a realized gain of $0.9 million on the repayment of a convertible note from another non-control/non-affiliate investment. In addition, during the three months ended September 30, 2010, we recorded net unrealized appreciation of investments totaling approximately $0.4 million, comprised of 1) unrealized appreciation on 15 investments totaling approximately $5.2 million, 2) unrealized depreciation on 14 investments totaling approximately $4.2 million and 3) unrealized depreciation reclassification adjustments totaling approximately $0.6 million related to the two realized gains discussed above.

As a result of these events, our net increase in net assets from operations was $17.5 million for the three months ended September 30, 2011 as compared to a net increase in net assets from operations of $7.2 million for the three months ended September 30, 2010.

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Comparison of nine months ended September 30, 2011 and September 30, 2010

Investment Income

For the nine months ended September 30, 2011, total investment income was $45.1 million, a 76% increase from $25.6 million of total investment income for the nine months ended September 30, 2010. This increase was primarily attributable to a $19.4 million increase in total loan interest, fee and dividend income (including PIK interest income). The increase in total loan interest, fee and dividend income was due to 1) a net increase in our portfolio investments from September 30, 2010, to September 30, 2011, and 2) an increase in non-recurring fee income of approximately $0.8 million. Non-recurring fee income was approximately $2.8 million for the nine months ended September 30, 2011, as compared to approximately $2.0 million for the nine months ended September 30, 2010.

Expenses

For the nine months ended September 30, 2011, expenses increased by 44% to $16.7 million from $11.6 million for the nine months ended September 30, 2010. The increase in expenses was primarily attributable to a $1.8 million increase in interest expense, a $0.1 million increase in amortization of deferred financing fees and a $3.3 million increase in general and administrative expenses. The increase in interest expense is related to higher average balances of SBA-guaranteed debentures outstanding during the nine months ended September 30, 2011 than in the comparable period in 2010. The increase in amortization of deferred financing fees is associated with the early repayment of certain SBA-guaranteed debentures in the first quarter of 2011. The increase in general and administrative costs in the first nine months of 2011 was primarily related to increased salary and incentive compensation costs and increased non-cash compensation expenses driven in part by an overall growth in employees.

Net Investment Income

As a result of the $19.5 million increase in total investment income and the $5.1 million increase in expenses, net investment income for the nine months ended September 30, 2011 was $28.3 million compared to net investment income of $14.0 million during the nine months ended September 30, 2010.

Net Increase/Decrease in Net Assets Resulting From Operations

In the nine months ended September 30, 2011, we realized a gain on the sale of one control investment of approximately $12.2 million, a loss on the disposal of one control investment of $0.1 million and a loss on a debt to equity conversion of one control investment of $3.0 million. In addition, we realized gains on the repayments of two non-control/non-affiliate investments totaling approximately $0.8 million, and a gain on the sale of one non-control/non-affiliate investment of $1.0 million. During the nine months ended September 30, 2011, we recorded net unrealized appreciation of investments totaling approximately $5.0 million, comprised of 1) unrealized appreciation on 27 investments totaling approximately $18.7 million, 2) unrealized depreciation on 17 investments totaling approximately $4.8 million and 3) $8.9 million of net unrealized depreciation reclassification adjustments related to the realized gains and losses noted above.

In the nine months ended September 30, 2010, we realized a gain on the sale of one affiliate investment of approximately $3.5 million, a gain on the sale of two non-control/non-affiliate investments totaling approximately $0.5 million, a realized loss on the partial conversion of one non-control/non-affiliate debt investment to equity of approximately $3.0 million and a realized gain of $0.9 million on the repayment of a convertible note from another non-control/non-affiliate investment. In addition, during the nine months ended September 30, 2010, we recorded net unrealized appreciation of investments totaling approximately $2.4 million, comprised of 1) unrealized appreciation on 17 investments totaling approximately $15.5 million, 2) unrealized depreciation on 17 investments totaling approximately $12.3 million and 3) $0.8 million in net unrealized depreciation reclassification adjustments related to the realized gains and realized loss noted above.

As a result of these events, our net increase in net assets from operations was $44.4 million for the nine months ended September 30, 2011 as compared to a net increase in net assets from operations of $18.2 million during the nine months ended September 30, 2010.

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Liquidity and Capital Resources

We believe that our current cash and cash equivalents on hand, available leverage under our line of credit and our anticipated cash flows from operations will be adequate to meet our cash needs for our daily operations for at least the next twelve months.

In the future, depending on the valuation of Triangle SBIC’s assets and Triangle SBIC II’s assets pursuant to SBA guidelines, Triangle SBIC and Triangle SBIC II may be limited by provisions of the Small Business Investment Act of 1958, as amended, or the Small Business Investment Act, and SBA regulations governing SBICs, from making certain distributions to Triangle Capital Corporation that may be necessary to enable Triangle Capital Corporation to make the minimum required distributions to its stockholders and qualify as a Regulated Investment Company, or RIC.

Cash Flows

For the nine months ended September 30, 2011, we experienced a net increase in cash and cash equivalents in the amount of $30.6 million. During that period, our operating activities used $94.9 million in cash, consisting primarily of new portfolio investments of $184.1 million, partially offset by repayments received from portfolio companies and proceeds from the sale of investments totaling $63.4 million. In addition, financing activities provided $125.5 million of cash, consisting primarily of proceeds from public stock offerings of $128.7 million and borrowings under SBA-guaranteed debentures payable of $31.1 million, offset by cash dividends paid in the amount of $22.8 million, repayments of SBA-guaranteed debentures of $9.5 million and financing fees paid in the amount of $1.3 million. At September 30, 2011, we had $85.4 million of cash and cash equivalents on hand.

For the nine months ended September 30, 2010, we experienced a net increase in cash and cash equivalents in the amount of $18.9 million. During that period, our operating activities used $22.2 million in cash, consisting primarily of new portfolio investments of $88.2 million, partially offset by repayments received from portfolio companies and proceeds from the sale of investments totaling $54.0 million. In addition, financing activities provided $41.1 million of cash, consisting primarily of proceeds from a public stock offering of $41.3 million and borrowings under SBA guaranteed debentures payable of $39.4 million, offset by cash dividends paid in the amount of $15.5 million, repayments of SBA guaranteed debentures of $22.3 million and financing fees paid in the amount of $1.5 million. At September 30, 2010, we had $74.1 million of cash and cash equivalents on hand.

Financing Transactions

Due to Triangle SBIC’s and Triangle SBIC II’s status as licensed SBICs, Triangle SBIC and Triangle SBIC II have the ability to issue debentures guaranteed by the SBA at favorable interest rates. Under the Small Business Investment Act and the SBA rules applicable to SBICs, an SBIC (or group of SBICs under common control) can have outstanding at any time debentures guaranteed by the SBA up to two times (and in certain cases, up to three times) the amount of its regulatory capital, which generally is the amount raised from private investors. The maximum statutory limit on the dollar amount of outstanding debentures guaranteed by the SBA issued by a single SBIC is currently $150.0 million and by a group of SBICs under common control is $225.0 million. Debentures guaranteed by the SBA have a maturity of ten years, with interest payable semi-annually. The principal amount of the debentures is not required to be paid before maturity but may be pre-paid at any time. Debentures issued prior to September 2006, were subject to pre-payment penalties during their first five years. Those pre-payment penalties no longer apply to debentures issued after September 1, 2006.

As of September 30, 2011, Triangle SBIC has issued the maximum $150.0 million of SBA-guaranteed debentures and Triangle SBIC II has issued the maximum $75.0 million in face amount of SBA-guaranteed debentures. In addition to the one-time fee of 1.0% on the total commitment from the SBA, the Company also pays a one-time fee of 2.425% on the amount of each debenture issued (2.0% for SBA LMI debentures). These fees are capitalized as deferred financing costs and are amortized over the term of the debt agreements using the effective interest method. The weighted average interest rate for all SBA-guaranteed debentures as of September 30, 2011 was 4.83%.

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In May 2011, the Company entered into a three-year senior secured credit facility with an initial commitment of $50.0 million (the “Credit Facility”). The purpose of the Credit Facility is to provide additional liquidity in support of future investment and operational activities. The Credit Facility was arranged by BB&T Capital Markets and Fifth Third Bank and has an accordion feature which allows for an increase in the total loan size up to $90.0 million and also contains two one-year extension options, bringing the total potential commitment and funding period to five years from the closing date. The Credit Facility, which is structured to operate like a revolving credit facility, is secured primarily by Triangle Capital Corporation’s assets, excluding the assets of Triangle SBIC and Triangle SBIC II.

Borrowings under the Credit Facility bear interest, subject to the Company’s election, on a per annum basis equal to (i) the applicable base rate plus 1.95% or ii) the applicable LIBOR rate plus 2.95%. The applicable base rate is equal to the greater of i) prime rate, ii) the federal funds rate plus 0.5% or iii) the adjusted one-month LIBOR plus 2.0%. The Company pays unused commitment fees of 0.375% per annum. As of September 30, 2011, the Company did not have any borrowings outstanding under the Credit Facility.

Distributions to Stockholders

We have elected to be treated as a regulated investment company, or RIC, under Subchapter M of the Internal Revenue Code of 1986, as amended, or the Code, and intend to make the required distributions to our stockholders as specified therein. In order to qualify as a RIC and to obtain RIC tax benefits, we must meet certain minimum distribution, source-of-income and asset diversification requirements. If such requirements are met, then we are generally required to pay income taxes only on the portion of our taxable income and gains we do not distribute (actually or constructively) and certain built-in gains. We met our minimum distribution requirements for 2007 through 2010 and continually monitor our distribution requirements with the goal of ensuring compliance with the Code.

The minimum distribution requirements applicable to RICs require us to distribute to our stockholders each year at least 90% of our investment company taxable income, or ICTI as defined by the Code. Depending on the level of ICTI earned in a tax year, we may choose to carry forward ICTI in excess of current year distributions into the next tax year and pay a 4% excise tax on such excess. In order to avoid paying federal income tax on any carryover ICTI, any such carryover ICTI must be distributed to stockholders before the end of the next tax year through a dividend declared prior to filing the final tax return related to the year that generated such ICTI.

ICTI generally differs from net investment income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. We may be required to recognize ICTI in certain circumstances in which we do not receive cash. For example, if we hold debt obligations that are treated under applicable tax rules as having original issue discount (such as debt instruments issued with warrants), we must include in ICTI each year a portion of the original issue discount that accrues over the life of the obligation, regardless of whether cash representing such income is received by us in the same taxable year. We may also have to include in ICTI other amounts that we have not yet received in cash, such as 1) PIK interest income and 2) interest income from investments that have been classified as non-accrual for financial reporting purposes. Interest income on non-accrual investments is not recognized for financial reporting purposes, but generally is recognized in ICTI. Because any original issue discount or other amounts accrued will be included in our ICTI for the year of accrual, we may be required to make a distribution to our stockholders in order to satisfy the minimum distribution requirements, even though we will not have received and may not ever receive any corresponding cash amount. ICTI also excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

Current Market Conditions

Beginning in 2008, the debt and equity capital markets in the United States were severely impacted by significant write-offs in the financial services sector relating to subprime mortgages and the re-pricing of credit risk in the broadly syndicated bank loan market, among other factors. These events, along with the deterioration of the housing market, led to an economic recession in the U.S. and abroad. Banks, investment companies and

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others in the financial services industry reported significant write-downs in the fair value of their assets, which led to the failure of a number of banks and investment companies, a number of distressed mergers and acquisitions, the government take-over of the nation’s two largest government-sponsored mortgage companies, the passage of the $700 billion Emergency Economic Stabilization Act of 2008 in October 2008 and the passage of the American Recovery and Reinvestment Act of 2009, or the Stimulus Bill, in February 2009. These events significantly impacted the financial and credit markets and reduced the availability of debt and equity capital for the market as a whole, and for financial firms in particular. Notwithstanding recent gains across both the equity and debt markets, these conditions may reoccur in the future and could then continue for a prolonged period of time. Further, 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 we have been able to secure access to additional liquidity, including our recent public stock offering, increased leverage available through the SBIC program as a result of the Stimulus Bill and our new $50 million credit facility, there is no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

Recent Developments

In October 2011, we invested $9.7 million in subordinated debt and equity of Media Storm, LLC (“Media Storm”). Media Storm plans and executes advertising purchases on behalf of television networks. Under the terms of the investment, Media Storm will pay interest on the subordinated debt at a rate of 14% per annum.

On November 1, 2011, we increased the commitment under our Credit Facility from $50.0 million to $75.0 million.

In November 2011, we invested $8.0 million in subordinated debt and equity of Workforce Software (“Workforce”). Workforce provides software solutions to manage employee time and labor schedules, manage employee absences, create employee schedules and track employee compliance. Under the terms of the investment, Workforce will pay interest on the subordinated debt at a rate of 14% per annum.

In November 2011, we invested $8.2 million in subordinated debt and equity of Trinity Consultants, Inc. (“Trinity”). Trinity is an environmental consulting company that specializes in industrial air quality issues. Under the terms of the investment, Trinity will pay interest on the subordinated debt at a rate of 14.5% per annum.

In December 2011, we invested $12.5 million in subordinated notes of Sheplers, Inc. (“Sheplers”). Sheplers is a retailer of western style footwear, apparel, and accessories. Under the terms of the investment, Sheplers will pay interest on one of the subordinated notes at a rate of 13.2% per annum and will pay interest on a second note at a rate of 17.0% per annum.

As of September 30, 2011, our investment in American De-Rosa Lamparts, LLC and Hallmark Lighting, or collectively, ADL, was on non-accrual status. As a result, under U.S. GAAP, we did not recognize interest income on our investment in ADL for financial reporting purposes. As described further herein under “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Non-Accrual Assets,” ADL began making cash interest payments on our subordinated note beginning in January 2012 and, as a result, is no longer on non-accrual status as of January 31, 2012.

In February 2012, our Board of Directors granted 227,631 restricted shares of our common stock to certain employees. These restricted shares had a total grant date fair value of approximately $4.3 million, which will be expensed on a straight-line basis over each respective award’s vesting period.

In February 2012, we filed a prospectus supplement pursuant to which 3,700,000 shares of common stock were offered for sale at a price to the public of $19.00 per share. In addition, the underwriters involved were granted an over-allotment option to purchase an additional 555,000 shares of our common stock at the same public offering price. Pursuant to this offering, all shares (including the over-allotment option shares) were sold and delivered on February 13, 2012 resulting in net proceeds to us, after underwriting discounts and offering expenses, of approximately $77.1 million.

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In February 2012, we invested $6.3 million in subordinated debt with warrants of Sprint Logistics, a manager of waste transfer station operations. Under the terms of the investment, Sprint Logistics, will pay interest on the subordinated debt at a rate of 15.5% per annum

Critical Accounting Policies and Use of Estimates

The preparation of our unaudited financial statements in accordance with accounting principles generally accepted in the United States requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses for the periods covered by such financial statements. We have identified investment valuation and revenue recognition as our most critical accounting estimates. On an on-going basis, we evaluate our estimates, including those related to the matters described below. These estimates are based on the information that is currently available to us and on various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ materially from those estimates under different assumptions or conditions. A discussion of our critical accounting policies follows.

Investment Valuation

The most significant estimate inherent in the preparation of our financial statements is the valuation of investments and the related amounts of unrealized appreciation and depreciation of investments recorded. We have established and documented processes and methodologies for determining the fair values of portfolio company investments on a recurring (quarterly) basis in accordance with FASB ASC Topic 820, Fair Value Measurements and Disclosures , or ASC Topic 820. ASC Topic 820 defines fair value, establishes a framework for measuring fair value in accordance with U.S. GAAP and expands disclosures about fair value measurements. As discussed below, we have engaged an independent valuation firm to assist us in our valuation process.

ASC Topic 820 clarifies that the exchange price is the price in an orderly transaction between market participants to sell an asset or transfer a liability in the market in which the reporting entity would transact for the asset or liability, that is, the principal or most advantageous market for the asset or liability. The transaction to sell the asset or transfer the liability is a hypothetical transaction at the measurement date, considered from the perspective of a market participant that holds the asset or owes the liability. ASC Topic 820 provides a consistent definition of fair value which focuses on exit price and prioritizes, within a measurement of fair value, the use of market-based inputs over entity-specific inputs. In addition, ASC Topic 820 provides a framework for measuring fair value and establishes a three-level hierarchy for fair value measurements based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels of valuation hierarchy established by ASC Topic 820 are defined as follows:

Level 1 — inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2 — inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3 — inputs to the valuation methodology are unobservable and significant to the fair value measurement.

A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Our investment portfolio is comprised of debt and equity instruments of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not available. Therefore, we value all of our investments at fair value, as determined in good faith by our Board of Directors, using Level 3 inputs, as further described below. Due to the inherent uncertainty in the valuation process, our Board of Directors’ estimate of fair value may differ significantly from the values that would have been used had a ready market for the securities existed, and the differences could be material. In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the valuations currently assigned.

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Debt and equity securities that are not publicly traded and for which a limited market does not exist are valued at fair value as determined in good faith by our Board of Directors. There is no single standard for determining fair value in good faith, as fair value depends upon circumstances of each individual case. In general, fair value is the amount that we might reasonably expect to receive upon the current sale of the security.

We evaluate the investments in portfolio companies using the most recently available portfolio company financial statements and forecasts. We also consult with the portfolio company’s senior management to obtain further updates on the portfolio company’s performance, including information such as industry trends, new product development and other operational issues. Additionally, we consider some or all of the following factors:

In making the good faith determination of the value of debt securities, we start with the cost basis of the security, which includes the amortized original issue discount, and PIK interest, if any. We also use a risk rating system to estimate the probability of default on the debt securities and the probability of loss if there is a default. The risk rating system covers both qualitative and quantitative aspects of the business and the securities held. In valuing debt securities, management utilizes an “income approach” model that considers factors including, but not limited to, (i) the portfolio investment’s current risk rating, (ii) the portfolio company’s current trailing twelve months’, or TTM, results of operations as compared to the portfolio company’s TTM results of operations as of the date the investment was made and the portfolio company’s anticipated results for the next twelve months of operations, (iii) the portfolio company’s current leverage as compared to its leverage as of the date the investment was made, (iv) publicly available information regarding current pricing and credit metrics for similar proposed and executed investment transactions of private companies and (v) when management believes a relevant comparison exists, current pricing and credit metrics for similar proposed and executed investment transactions of publicly traded debt.

In valuing equity securities of private companies, we consider valuation methodologies consistent with industry practice, including but not limited to (i) valuation using a valuation model based on original transaction multiples and the portfolio company’s recent financial performance, (ii) publicly available information regarding

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the valuation of the securities based on recent sales in comparable transactions of private companies and (iii) when management believes there are comparable companies that are publicly traded, a review of these publicly traded companies and the market multiple of their equity securities.

Duff & Phelps, LLC, or Duff & Phelps, an independent valuation firm, provides third party valuation consulting services to us, which consist of certain limited procedures that we identified and requested Duff & Phelps to perform (hereinafter referred to as the “procedures”). We generally request Duff & Phelps to perform the procedures on each portfolio company at least once in every calendar year and for new portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In addition, we generally request Duff & Phelps to perform the procedures on a portfolio company when there has been a significant change in the fair value of the investment. In certain instances, we may determine that it is not cost-effective, and as a result is not in our stockholders’ best interest, to request Duff & Phelps to perform the procedures on one or more portfolio companies. Such instances include, but are not limited to, situations where the fair value of our investment in the portfolio company is determined to be insignificant relative to our total investment portfolio.

The total number of investments and the percentage of our portfolio on which we asked Duff & Phelps to perform such procedures are summarized below by period: