MSC INCOME FUND ANNOUNCES 2025 FOURTH QUARTER AND ANNUAL RESULTS

Fourth Quarter 2025 Net Investment Income of $0.28 Per Share

Fourth Quarter 2025 Adjusted Net Investment Income⁽¹⁾ of $0.34 Per Share

Fourth Quarter 2025 Adjusted Net Investment Income Before Taxes⁽²⁾ of $0.37 Per Share

Net Asset Value of $15.85 Per Share

HOUSTON, Feb. 26, 2026 /PRNewswire/ -- MSC Income Fund, Inc. (NYSE: MSIF) ("MSC Income" or the "Fund") is pleased to announce its financial results for the fourth quarter and full year ended December 31, 2025.

Fourth Quarter 2025 Highlights

• Net investment income ("NII") of $13.1 million, or $0.28 per share, including the impact of the capital gains incentive fee⁽³⁾ of $2.8 million, or $0.06 per share, and excise tax and NII related income taxes of $1.3 million, or $0.03 per share
• NII excluding the impact of the capital gains incentive fee,⁽³⁾ or adjusted net investment income ("ANII"),⁽¹⁾ of $15.9 million, or $0.34 per share
• ANII excluding the impact of excise tax and NII related income taxes, or ANII before taxes,⁽²⁾ of $17.2 million, or $0.37 per share
• Total investment income of $34.9 million
• Net increase in net assets resulting from operations of $30.0 million, or $0.64 per share
• Return on equity⁽⁴⁾ of 16.3% on an annualized basis
• Net asset value of $15.85 per share as of December 31, 2025, representing an increase of $0.31 per share, or 2.0%, compared to $15.54 per share as of September 30, 2025
• Declared a regular quarterly dividend of $0.35 per share and a supplemental dividend of $0.01 per share, both payable in the first quarter of 2026, resulting in total dividends declared in the fourth quarter of 2025 of $0.36 per share
• Completed $100.9 million in total private loan portfolio investments, which after aggregate repayments, return of invested equity capital and a decrease in cost basis due to realized losses resulted in a net increase of $57.1 million in the total cost basis of the private loan investment portfolio
• Completed $23.0 million in total lower middle market ("LMM") portfolio follow-on investments, which after aggregate repayments, return of invested equity capital and a decrease in cost basis due to realized losses resulted in a net increase of $14.9 million in the total cost basis of the LMM investment portfolio

Full Year 2025 Highlights

• NII of $61.8 million, or $1.33 per share, including the impact of the capital gains incentive fee⁽³⁾ of $2.8 million, or $0.06 per share, and excise tax and NII related income taxes of $3.8 million, or $0.08 per share
• NII excluding the impact of the capital gains incentive fee,⁽³⁾ or ANII,⁽¹⁾ of $64.5 million, or $1.39 per share
• ANII excluding the impact of excise tax and NII related income taxes, or ANII before taxes,⁽²⁾ of $68.3 million, or $1.47 per share
• Total investment income of $139.2 million
• Net increase in net assets resulting from operations of $88.7 million, or $1.91 per share
• Return on equity⁽⁴⁾ of 12.5%
• Net asset value of $15.85 per share as of December 31, 2025, representing an increase of $0.32 per share, or 2.1%, compared to $15.53 per share as of December 31, 2024
• Declared regular quarterly dividends totaling $1.40 per share and supplemental dividends totaling $0.04 per share, resulting in total dividends declared of $1.44 per share
• Completed $357.1 million in total private loan portfolio investments, which after aggregate repayments and sales of debt investments, return of invested equity capital and a decrease in cost basis due to realized losses resulted in a net increase of $109.6 million in the total cost basis of the private loan investment portfolio
• Completed $53.5 million in total LMM portfolio follow-on investments, which after aggregate repayments, return of invested equity capital and a decrease in cost basis due to realized losses resulted in a net increase of $27.1 million in the total cost basis of the LMM investment portfolio
• Further diversified the Fund's capital structure and enhanced its liquidity position by (i) amending the Corporate Facility to increase total commitments to $245.0 million (from $165.0 million), increase the accordion feature to up to a total of $300.0 million and expand and diversify the lender group to seven participants and (ii) amending the SPV Facility to decrease the interest rate to the applicable Secured Overnight Financing Rate ("SOFR") plus 2.20% (from 3.00%), extend the revolving period through February 2029 and extend the final maturity date to February 2030, with the Corporate Facility and SPV Facility each defined in the Liquidity and Capital Resources section below
• Entered into an amended advisory agreement effective upon the listing of the Fund's common stock on the New York Stock Exchange ("NYSE") in January 2025 (the "MSC Income Listing") to, among other things, (i) reduce the annual base management fee payable by the Fund to 1.5% of its average total assets (with additional future contractual reductions based upon changes to the composition of the Fund's investment portfolio), (ii) reduce to 17.5% the subordinated incentive fee on income payable by the Fund, subject to a 50% / 50% catch-up feature, (iii) reduce to 17.5% and reset the incentive fee on cumulative net realized capital gains payable by the Fund and (iv) establish a cap on the amount of expenses payable by the Fund relating to certain internal administrative services, which varies based on the value of the Fund's total assets

In commenting on the Fund's operating results for the fourth quarter and full year of 2025, Dwayne L. Hyzak, MSC Income's Chief Executive Officer, stated, "We are very pleased with the Fund's performance in the fourth quarter, which resulted in an annualized return on equity of 16.3%, favorable adjusted net investment income per share and a significant net increase in the fair value of the Fund's investments, including the benefits of net realized gains in both the Fund's private loan and lower middle market investments, which resulted in a significant increase in net asset value per share. The Fund also produced favorable investment activity in the fourth quarter which generated meaningful growth of the Fund's investment portfolio."

Mr. Hyzak continued, "After the Fund's positive performance in the first three quarters of 2025, the Fund's strong performance in the fourth quarter resulted in a return on equity of 12.5% for the full year. Based upon the quality of the Fund's existing investment portfolio, combined with the Fund's existing liquidity and expanded regulatory leverage capacity which became effective for the Fund at the end of January 2026, we remain excited about our future expectations for the Fund."

Fourth Quarter 2025 Operating Results

The following table provides a summary of the Fund's operating results for the fourth quarter of 2025:

The $1.5 million increase in total investment income in the fourth quarter of 2025 from the comparable period of the prior year was principally attributable to a $2.6 million increase in dividend income, primarily due to a $2.5 million increase in dividend income from the Fund's LMM portfolio companies. The increase was partially offset by (i) a $0.8 million decrease in interest income, principally attributable to a decrease in interest rates, primarily resulting from decreases in benchmark index rates on floating rate debt investments, and a larger negative impact from investments on non-accrual status, partially offset by higher average levels of income producing investment portfolio debt investments and (ii) a $0.3 million decrease in fee income, principally attributable to a decrease in fee income from the refinancing and prepayment of debt investments. The $1.5 million increase in total investment income in the fourth quarter of 2025 includes the impact of an increase of $1.1 million in certain income considered less consistent or non-recurring, primarily related to increases of (i) $1.2 million in such dividend income and (ii) $0.1 million in such interest income from accelerated prepayment, repricing and other activity related to certain investment portfolio debt investments, partially offset by a $0.3 million decrease in such fee income, in each case when compared to the same period in 2024.

Total expenses, net of waivers, increased by $1.3 million, or 6.7%, to $20.5 million in the fourth quarter of 2025 from $19.2 million for the same period in 2024. This increase was principally attributable to a $2.8 million capital gains incentive fee⁽³⁾ accrued in the fourth quarter of 2025, partially offset by (i) a $1.2 million decrease in interest expense and (ii) a $0.4 million decrease in base management fees. The capital gains incentive fee⁽³⁾ is primarily the result of the significant net fair value appreciation of the Fund's investments recognized during the fourth quarter of 2025. The decrease in interest expense is primarily related to a decreased weighted-average interest rate on the Credit Facilities due to a decrease to the applicable spreads resulting from amendments of the Credit Facilities since the fourth quarter of 2024 and decreases in benchmark index rates.

The Fund's ratio of total non-interest operating expenses, excluding incentive fees, as a percentage of quarterly average total assets, or the Operating Expenses to Assets Ratio, decreased to 1.8% on an annualized basis for the fourth quarter of 2025, from 2.1% for the fourth quarter of 2024, primarily as a result of the decreased base management fee percentage under the amended advisory agreement effective upon the MSC Income Listing in January 2025.

NII related federal and state income and other tax expenses increased $0.6 million in the fourth quarter of 2025 from the comparable period of the prior year, primarily driven by an increase in taxable NII between the relevant periods.

The $0.4 million decrease in NII in the fourth quarter of 2025 from the comparable period of the prior year was principally attributable to increases in (i) total expenses, net of waivers, and (ii) NII related federal and state income and other tax expenses, partially offset by an increase in total investment income, each as discussed above. NII on a per share basis decreased by $0.06 per share for the fourth quarter of 2025 as compared to the fourth quarter of 2024, to $0.28 per share, reflecting the impact of the $0.06 per share capital gains incentive fee accrual in the fourth quarter of 2025.

The $2.3 million increase in ANII⁽¹⁾ in the fourth quarter of 2025 from the comparable period of the prior year was principally attributable to the same factors noted above for the change in NII, which include (i) an increase in total investment income, (ii) a decrease in interest expense and (iii) a decrease in base management fees, partially offset by an increase in NII related federal and state income and other tax expenses, each as discussed above, but excluding the impact of the capital gains incentive fee accrual in 2025. ANII⁽¹⁾ on a per share basis for the fourth quarter of 2025 was consistent with the fourth quarter of 2024 at $0.34 per share.

The per share changes in NII and ANII⁽¹⁾ in the fourth quarter of 2025 from the comparable period of the prior year include the impact of a 16.6% increase in the weighted-average shares outstanding, primarily due to new shares issued through the MSC Income Listing and the dividend reinvestment plan, partially offset by shares repurchased by the Fund. NII and ANII⁽¹⁾ on a per share basis in the fourth quarter of 2025 each include a net increase of $0.02 per share resulting from an increase in investment income considered less consistent or non-recurring in nature compared to the fourth quarter of 2024, as discussed above.

The $30.0 million net increase in net assets resulting from operations in the fourth quarter of 2025 represents a $9.6 million increase from the fourth quarter of 2024. This increase was primarily the result of a $16.0 million increase in the net fair value change of the Fund's portfolio investments resulting from the net impact of net realized gains/losses and net unrealized appreciation/depreciation, with the increase resulting from a net fair value increase of $17.2 million in the fourth quarter of 2025 compared to a net fair value increase of $1.2 million in the comparable period of the prior year, partially offset by (i) a $6.0 million increase in net tax provision on the net fair value change of the portfolio investments resulting from a net tax provision of $0.3 million in the fourth quarter of 2025 compared to a net tax benefit of $5.7 million in the comparable period of the prior year and (ii) a $0.4 million decrease in NII as discussed above. The $17.2 million net fair value increase in the fourth quarter of 2025 was the result of a net realized gain of $16.6 million and net unrealized appreciation (including the reversal of net fair value appreciation recognized in prior periods due to the net realized gain in the quarter) of $0.5 million. The $1.2 million net fair value increase in the fourth quarter of 2024 was the result of net unrealized appreciation of $9.2 million, partially offset by a net realized loss of $8.0 million. The $16.6 million net realized gain from investments for the fourth quarter of 2025 was primarily the result of (i) $16.1 million of realized gains on the full exits of two private loan portfolio investments and (ii) a $6.0 million realized gain on the full exit of a LMM portfolio investment, partially offset by (i) a $5.2 million realized loss on the restructure of a private loan portfolio investment and (ii) a $0.3 million realized loss on the full exit of a private loan portfolio investment.

The following table provides a summary of the total net unrealized appreciation of $0.5 million for the fourth quarter of 2025:

Liquidity and Capital Resources

As of December 31, 2025, the Fund had aggregate liquidity of $112.0 million, including (i) $20.6 million in cash and cash equivalents and (ii) $91.4 million of aggregate unused capacity under the Fund's corporate revolving credit facility (the "Corporate Facility") and the Fund's special purpose vehicle revolving credit facility (the "SPV Facility" and, together with the Corporate Facility, the "Credit Facilities"), which the Fund maintains to support its investment and operating activities.

Several details regarding the Fund's capital structure as of December 31, 2025 are as follows:

• The SPV Facility included $300.0 million in total commitments plus an accordion feature that allows the Fund to request an increase in the total commitments under the facility to up to $450.0 million.
• $244.0 million in outstanding borrowings under the SPV Facility, with an interest rate of 5.9% based on the applicable SOFR effective for the contractual reset date of January 1, 2026.
• The Corporate Facility included $245.0 million in total commitments from a diversified group of seven participating lenders, plus an accordion feature that allows the Fund to request an increase in the total commitments under the facility to up to $300.0 million.
• $209.0 million in outstanding borrowings under the Corporate Facility, with an interest rate of 5.8% based on the applicable SOFR effective for the contractual reset date of January 1, 2026.
• $150.0 million of unsecured notes outstanding that bear interest at a rate of 4.04% per year (the "Series A Notes"). The Series A Notes mature on October 30, 2026.
• The Fund maintains an investment grade rating from Kroll Bond Rating Agency, LLC of BBB- with a stable outlook. Kroll Bond Rating Agency, LLC reaffirmed its rating in October 2025.
• The Fund's net asset value totaled $738.7 million, or $15.85 per share.
• The Fund's debt-to-equity ratio was 0.82x as of December 31, 2025, below the Fund's targeted leverage range.
• Effective on January 29, 2026, the Fund's minimum regulatory asset coverage requirement decreased from 200% to 150%.

Investment Portfolio Information as of December 31, 2025⁽⁶⁾

The following table provides a summary of the investments in the Fund's private loan portfolio and LMM portfolio as of December 31, 2025:

The Fund's total investment portfolio at fair value consists of approximately 61% private loan, 36% LMM, 2% middle market and 1% other portfolio investments.

The fair value of the Fund's LMM portfolio company equity investments was 201% of the related cost basis of such equity investments, and the Fund's LMM portfolio companies had a median net senior debt (senior interest-bearing debt through the Fund's debt position less cash and cash equivalents) to EBITDA ratio of 2.5 to 1.0 and a median total EBITDA to senior interest expense ratio of 2.9 to 1.0. Including all debt that is junior in priority to the Fund's debt position, these median ratios were 2.7 to 1.0 and 2.8 to 1.0, respectively.⁽⁶⁾⁽⁷⁾

As of December 31, 2025, the Fund's investment portfolio also included:

• Middle market portfolio investments in eight portfolio companies, collectively totaling $23.3 million in fair value and $39.8 million in cost basis, which comprised 1.7% and 3.2% of the Fund's investment portfolio at fair value and cost, respectively; and
• Other portfolio investments in six entities, spread across four investment managers, collectively totaling $15.5 million in fair value and $13.7 million in cost basis, which comprised 1.2% and 1.1% of the Fund's investment portfolio at fair value and cost, respectively.

As of December 31, 2025, investments on non-accrual status comprised 1.0% of the total investment portfolio at fair value and 3.9% at cost, and the Fund's total portfolio investments at fair value were 106% of the related cost basis.

Fourth Quarter and Full Year 2025 Financial Results Conference Call / Webcast

MSC Income has scheduled a conference call for Friday, February 27, 2026 at 11:00 a.m. Eastern time to discuss the fourth quarter and full year 2025 financial results.⁽⁸⁾

You may access the conference call by dialing 412-902-0030 at least 10 minutes prior to the start time. The conference call can also be accessed via a simultaneous webcast by logging into the investor relations section of the Fund's website at https://www.mscincomefund.com.

A telephonic replay of the conference call will be available through Friday, March 6, 2026 and may be accessed by dialing 201-612-7415 and using the passcode 13758250#. An audio archive of the conference call will also be available on the investor relations section of the Fund's website at https://www.mscincomefund.com shortly after the call and will be accessible until the date of MSC Income's earnings release for the next quarter.

For a more detailed discussion of the financial and other information included in this press release, please refer to the MSC Income Annual Report on Form 10-K for the fiscal year ended December 31, 2025 to be filed with the U.S. Securities and Exchange Commission (the "SEC") (www.sec.gov) and MSC Income's Fourth Quarter 2025 Investor Presentation to be posted on the investor relations section of the MSC Income website at https://www.mscincomefund.com.

ABOUT MSC INCOME FUND, INC.

The Fund (www.mscincomefund.com) is a principal investment firm that primarily provides debt capital to private companies owned by or in the process of being acquired by a private equity fund. The Fund's portfolio investments are typically made to support leveraged buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. The Fund seeks to partner with private equity fund sponsors and primarily invests in secured debt investments within its private loan investment strategy. The Fund also maintains a portfolio of customized long-term debt and equity investments in lower middle market companies, and through those investments, the Fund has partnered with entrepreneurs, business owners and management teams in co-investments with Main Street Capital Corporation (NYSE: MAIN) ("Main Street") utilizing the customized "one-stop" debt and equity financing solutions provided in Main Street's lower middle market investment strategy. The Fund's private loan portfolio companies generally have annual revenues between $25 million and $500 million. The Fund's lower middle market portfolio companies generally have annual revenues between $10 million and $150 million.

ABOUT MSC ADVISER I, LLC

MSC Adviser I, LLC ("MSCA") is a wholly-owned subsidiary of Main Street that is registered as an investment adviser under the Investment Advisers Act of 1940, as amended. MSCA serves as the investment adviser and administrator of the Fund in addition to several other advisory clients.

FORWARD-LOOKING STATEMENTS

MSC Income cautions that statements in this press release which are forward–looking and provide other than historical information, including but not limited to MSC Income's ability to successfully source and execute on new portfolio investments and deliver future financial performance and results, are based on current conditions and information available to MSC Income as of the date hereof and include statements regarding MSC Income's goals, beliefs, strategies and future operating results and cash flows. Although its management believes that the expectations reflected in those forward–looking statements are reasonable, MSC Income can give no assurance that those expectations will prove to be correct. Those forward-looking statements are made based on various underlying assumptions and are subject to numerous uncertainties and risks, including, without limitation: MSC Income's continued effectiveness in raising, investing and managing capital; adverse changes in the economy generally or in the industries in which MSC Income's portfolio companies operate; the impacts of macroeconomic factors on MSC Income and its portfolio companies' businesses and operations, liquidity and access to capital, and on the U.S. and global economies, including impacts related to pandemics and other public health crises, global conflicts, risk of recession, tariffs and trade disputes, inflation, supply chain constraints or disruptions and changes in market index interest rates; changes in laws and regulations or business, political and/or regulatory conditions that may adversely impact MSC Income's operations or the operations of its portfolio companies; the operating and financial performance of MSC Income's portfolio companies and their access to capital; retention of key investment personnel by MSCA; competitive factors; and such other factors described under the captions "Cautionary Statement Concerning Forward-Looking Statements" and "Risk Factors" included in MSC Income's filings with the SEC (www.sec.gov). MSC Income undertakes no obligation to update the information contained herein to reflect subsequently occurring events or circumstances, except as required by applicable securities laws and regulations.

Contacts:
MSC Income Fund, Inc.
Dwayne L. Hyzak, CEO, [email protected]  
Cory E. Gilbert, CFO, [email protected]   
713-350-6000

Dennard Lascar Investor Relations
Ken Dennard / [email protected]  
Zach Vaughan / [email protected]  
713-529-6600

SOURCE MSC Income Fund, Inc.