MSC Income Fund (NYSE: MSIF) Q1 2026 NII holds at $0.35

Rhea-AI Filing Summary

MSC Income Fund, Inc. reported first quarter 2026 net investment income of $16.2 million, or $0.35 per share, matching the prior year’s per-share result. Adjusted net investment income was $15.6 million, or $0.34 per share, and adjusted NII before taxes was $16.6 million, or $0.36 per share.

Total investment income rose to $34.1 million, driven by higher interest and fee income, partly offset by lower dividend income. The fund declared total dividends of $0.36 per share and repurchased $16.0 million of common stock below net asset value, contributing about $0.08 per-share NAV accretion.

Net asset value was $719.5 million, or $15.87 per share, with a 7.3% annualized return on equity and a debt-to-equity ratio of 0.90x as of March 31, 2026. Liquidity totaled $210.0 million, and the fund further diversified funding by issuing $150.0 million of 6.34% unsecured notes due May 31, 2029.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Figures

Total investment income: $34.1 million Net investment income: $16.2 million ($0.35/share) Adjusted net investment income: $15.6 million ($0.34/share) +5 more

8 metrics

Total investment income $34.1 million Three months ended March 31, 2026

Net investment income $16.2 million ($0.35/share) Q1 2026 vs $15.7 million in Q1 2025

Adjusted net investment income $15.6 million ($0.34/share) Q1 2026 non‑GAAP ANII

Net asset value per share $15.87 As of March 31, 2026

Total dividends declared $0.36 per share Q1 2026 regular and supplemental dividends

Share repurchases $16.0 million Q1 2026 buybacks below NAV, ~$0.08 NAV accretion

Debt-to-equity ratio 0.90x As of March 31, 2026

Liquidity $210.0 million Cash and unused credit capacity at March 31, 2026

Key Terms

Adjusted net investment income, non-accrual status, debt-to-equity ratio, lower middle market, +2 more

6 terms

Adjusted net investment income financial

"First Quarter 2026 Adjusted Net Investment Income(1) of $0.34 Per Share"

Adjusted net investment income is a measure of the cash a fund or investment vehicle earns from its core investing activities after removing one-time, accounting-only items such as paper gains or losses and unusual expenses. Think of it like a household budget that strips out one-off windfalls or repairs to show the money available for regular spending. Investors use it to judge the sustainability of dividend payments and the underlying earning power separate from short-term accounting swings.

non-accrual status financial

"As of March 31, 2026, investments on non-accrual status comprised 1.1% of the total investment portfolio at fair value"

A loan or credit account is placed in non-accrual status when the lender stops recording expected interest income because the borrower is not making scheduled payments or repayment is doubtful. Think of it like a landlord who stops counting unpaid rent as future income once a tenant stops paying; it signals rising credit problems and potential losses. For investors, non-accrual levels indicate loan quality and can foreshadow write-downs, lower earnings, and increased risk to a lender’s balance sheet.

debt-to-equity ratio financial

"The Fund’s debt-to-equity ratio was 0.90x as of March 31, 2026."

Debt-to-equity ratio shows how much a company relies on borrowed money compared with the owners’ funds; think of it as the amount of debt owed for every dollar of owner’s savings. Investors use it to judge financial risk and flexibility — a higher number means more borrowing and potentially greater interest burden or vulnerability in downturns, while a lower number suggests a more conservative, less risky balance sheet.

lower middle market financial

"Completed $19.4 million in total lower middle market (“LMM”) portfolio follow-on investments"

A segment of privately held companies that are larger than small businesses but smaller than big, publicly traded firms—think a successful neighborhood bakery rather than a national chain. These businesses often have steady revenue and room to grow, making them appealing targets for buyout investors seeking higher returns; they also carry more risk and less liquidity than large-cap stocks, so valuation and operational improvements matter more to investors.

Secured Overnight Financing Rate financial

"with an interest rate of 5.9% based on the applicable Secured Overnight Financing Rate (“SOFR”)"

A secured overnight financing rate (SOFR) is a daily benchmark interest rate that reflects the cost of borrowing cash overnight using U.S. Treasury securities as collateral. Think of it as the market price to “rent” cash for a day with a very safe pledge, similar to paying a short-term rental fee for money backed by government bonds. Investors track SOFR because it underpins pricing for loans, bonds and derivatives, so movements change borrowing costs, interest income and the valuation of interest-rate–linked positions.

capital gains incentive fee financial

"For the first quarter of 2026, the Fund reduced the accrual on the capital gains incentive fee by $0.6 million."

A capital gains incentive fee is a payment to a fund manager or advisor that is tied specifically to the profits realized when investments are sold for more than they were bought. It matters to investors because it aligns the manager’s pay with producing real, cash profits rather than paper gains; like a chef earning a bonus only when diners rave about a finished meal, it encourages focus on transactions that turn into actual returns and can reduce or increase net investor returns depending on timing and structure.

Earnings Snapshot

Total investment income: $34.1 million

Q1 2026

Total investment income $34.1 million +3% vs Q1 2025

Net investment income $16.2 million ($0.35/share) +3% dollar, flat per share vs Q1 2025

Adjusted net investment income $15.6 million ($0.34/share) -1% dollar, -$0.01/share vs Q1 2025

Net increase in net assets from operations $13.2 million ($0.29/share) -17% dollar, -$0.07/share vs Q1 2025

Net asset value per share $15.87 Slightly above $15.85 at Dec. 31, 2025

Understanding 8-K Material Events →

0001535778false00015357782026-05-072026-05-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________________________________________________

FORM 8-K

__________________________________________________________________________

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) May 7, 2026

__________________________________________________________________________

MSC Income Fund, Inc.

(Exact name of registrant as specified in its charter)

Maryland	814-00939	45-3999996
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1300 Post Oak Boulevard, 8th Floor, Houston, Texas	77056
(Address of principal executive offices)	(Zip Code)

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

Not Applicable

___________________________________________________________________________________

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the

registrant under any of the following provisions:

o	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class		Trading Symbol		Name of each exchange on which registered
Common Stock, par value $0.001 per share		MSIF		New York Stock Exchange NYSE Texas

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act

of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition

period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the

Exchange Act. o

Item 2.02Results of Operations and Financial Condition.

On May 7, 2026, the Registrant issued a press release. A copy of such press release is attached hereto as Exhibit 99.1 and is

incorporated herein by reference.

The information disclosed under this Item 2.02, including Exhibit 99.1 hereto, is being furnished and shall not be deemed

“filed” for purposes of Section 18 of the Securities Exchange Act of 1934 and shall not be deemed incorporated by

reference into any filing made under the Securities Act of 1933, except as expressly set forth by specific reference in such

filing.

Item 9.01Financial Statements and Exhibits.

(d) Exhibits

99.1	Press release dated May 7, 2026
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be

signed on its behalf by the undersigned hereunto duly authorized.

	MSC Income Fund, Inc.
Date: May 7, 2026	By:	/s/ Cory E. Gilbert
		Name:           Cory E. Gilbert
		Title:             Chief Financial Officer

1

Exhibit 99.1

	NEWS RELEASE
	Contacts: MSC Income Fund, Inc. Dwayne L. Hyzak, CEO, dhyzak@mainstcapital.com Cory E. Gilbert, CFO, cgilbert@mainstcapital.com 713-350-6000 Dennard Lascar Investor Relations Ken Dennard / ken@dennardlascar.com Zach Vaughan / zvaughan@dennardlascar.com 713-529-6600

MSC INCOME FUND ANNOUNCES

FIRST QUARTER 2026 RESULTS

First Quarter 2026 Net Investment Income of $0.35 Per Share

First Quarter 2026 Adjusted Net Investment Income(1) of $0.34 Per Share

First Quarter 2026 Adjusted Net Investment Income Before Taxes(2) of $0.36 Per Share

Net Asset Value of $15.87 Per Share

HOUSTON, May 7, 2026 – MSC Income Fund, Inc. (NYSE: MSIF) (“MSC Income” or the “Fund”) is pleased

to announce its financial results for the first quarter ended March 31, 2026.

First Quarter 2026 Highlights

•Net investment income (“NII”) of $16.2 million, or $0.35 per share

•Adjusted net investment income (“ANII”)(1) of $15.6 million, or $0.34 per share

•ANII before taxes(2) of $16.6 million, or $0.36 per share

•Total investment income of $34.1 million

•Net increase in net assets resulting from operations of $13.2 million, or $0.29 per share

•Return on equity(4) of 7.3% on an annualized basis

•Net asset value of $15.87 per share as of March 31, 2026

•Declared a regular quarterly dividend of $0.35 per share and a supplemental dividend of $0.01 per share,

both payable in the second quarter of 2026, resulting in total dividends declared in the first quarter of 2026 of

$0.36 per share

•Repurchased $16.0 million of the Fund’s common stock at prices below net asset value, resulting in an

increase in net asset value per share of approximately $0.08 per share

•Completed $54.8 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 $17.4

million in the total cost basis of the private loan investment portfolio

•Completed $19.4 million in total lower middle market (“LMM”) portfolio follow-on investments, which after

aggregate repayments and return of invested equity capital resulted in a net increase of $15.1 million in the

total cost basis of the LMM investment portfolio

•Previously approved expanded regulatory leverage capacity became effective January 29, 2026, reducing the

Fund’s minimum regulatory asset coverage requirement from 200% to 150%

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•Further diversified the Fund’s capital structure by issuing $150.0 million in aggregate principal amount of

6.34% unsecured notes due May 31, 2029 (the “May 2029 Notes”)

In commenting on the Fund’s operating results for the first quarter of 2026, Dwayne L. Hyzak, MSC Income’s

Chief Executive Officer, stated, “We are pleased with the Fund’s performance in the first quarter, given the

backdrop of significant economic and geopolitical uncertainties. Despite these ongoing uncertainties, we are

seeing an improved lending environment and significant opportunities in our private loan investment strategy,

and we believe the Fund is well positioned to capitalize on and generate attractive returns on those investments.

Based upon the quality of the Fund’s existing investment portfolio, together with the favorable liquidity position

and expanded regulatory leverage capacity which became effective at the end of January 2026 and the current

investment pipeline, we remain excited about our future expectations for the Fund.”

First Quarter 2026 Operating Results

The following table provides a summary of the Fund’s operating results for the first quarter of 2026:

	Three Months Ended March 31,
	2026		2025		Change		Change (%)
	(dollars in thousands, except per share amounts)
Interest income	$ 29,379		$ 27,424		$ 1,955		7 %
Dividend income	3,538		5,142		(1,604)		(31)%
Fee income	1,170		661		509		77 %
Total investment income	$ 34,087		$ 33,227		$ 860		3 %
Net investment income	$ 16,235		$ 15,746		$ 489		3 %
Net investment income per share	$ 0.35		$ 0.35		$ —		— %
Adjusted net investment income (1)	$ 15,597		$ 15,746		$ (149)		(1)%
Adjusted net investment income per share (1)	$ 0.34		$ 0.35		$ (0.01)		(3)%
Adjusted net investment income before taxes (2)	$ 16,603		$ 16,788		$ (185)		(1)%
Adjusted net investment income before taxes per share (2)	$ 0.36		$ 0.38		$ (0.02)		(5)%
Net increase in net assets resulting from operations	$ 13,223		$ 15,875		$ (2,652)		(17)%
Net increase in net assets resulting from operations per share	$ 0.29		$ 0.36		$ (0.07)		(19)%
Return on equity - quarter annualized (4)	7.3 %		9.5 %		(2.2)%		(23)%

The $0.9 million increase in total investment income in the first quarter of 2026 from the comparable period of

the prior year was principally attributable to (i) a $2.0 million increase in interest income, primarily due to

higher average levels of income producing investment portfolio debt investments, partially offset by a decrease

in interest rates, primarily resulting from decreases in benchmark index rates on floating rate investment

portfolio debt investments, and (ii) a $0.5 million increase in fee income, primarily due to an increase in fee

income related to increased investment activity. These increases were partially offset by a $1.6 million decrease

in dividend income, primarily due to a $1.5 million decrease in dividend income from the Fund’s LMM

portfolio companies. The $0.9 million increase in total investment income in the first quarter of 2026 is after the

impact of a decrease of $0.2 million in certain income considered less consistent or non-recurring, primarily

related to decreases of (i) $0.2 million in such dividend income and (ii) $0.2 million in such interest income

from accelerated prepayment, repricing and other activity related to certain investment portfolio debt

3

investments, partially offset by a $0.2 million increase in such fee income, in each case when compared to the

same period in 2025.

Total expenses, net of waivers, increased by $0.4 million, or 2.5%, to $16.8 million in the first quarter of 2026

from $16.4 million for the same period in 2025. This increase was principally attributable to (i) a $0.7 million

increase in interest expense, (ii) a $0.3 million increase in base management fees and (iii) a $0.1 million

increase in incentive fee on income, net of waivers, partially offset by a $0.6 million decrease in the ending

accrual for the accrued capital gains incentive fee(3) as of March 31, 2026. The increase in interest expense is

primarily related to an increase in average borrowings outstanding used to fund a portion of the growth of the

Fund’s investment portfolio, partially offset by decreased weighted-average interest rates on the Credit

Facilities due to decreases in benchmark floating index interest rates and a decrease in the applicable interest

rate spread on the SPV Facility resulting from the amendment of the SPV Facility in March 2025 (with the

Credit Facilities and the SPV Facility each defined in the Liquidity and Capital Resources section below). The

increase in base management fees is primarily the result of the Fund’s increased average total assets, partially

offset by the benefit of the lower base management fee percentage for the full quarter in the first quarter of 2026

compared to the benefit for a partial quarter in the first quarter of 2025 as a result of the Fund’s entry into an

amended advisory agreement (the “Amended Advisory Agreement”) with the Adviser (defined below),

effective upon the listing of the Fund’s common stock on the New York Stock Exchange on January 29, 2025

(the “MSC Income Listing”). The increase in incentive fee on income, net of waivers, is the result of (a) an

increase in the gross calculated incentive fee on income of $1.1 million, partially offset by (b) a $1.0 million

voluntary waiver of incentive fee on income by the Adviser. The increase in the gross calculated incentive fee

on income is a result of the Amended Advisory Agreement. The reduction in the capital gains incentive fee

accrual(3) is due to the net fair value depreciation of the Fund’s investments in the first quarter of 2026.

The Fund’s ratio of total non-interest operating expenses, excluding incentive fees, net of waivers, 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 first quarter of 2026, from 1.9% for the first quarter of 2025, primarily due to the

benefit of the lower base management fee percentage in the first quarter of 2026 as discussed above.

The $0.5 million increase in NII in the first quarter of 2026 from the comparable period of the prior year was

principally attributable to an increase in total investment income, partially offset by an increase in total

expenses, net of waivers, each as discussed above. NII on a per share basis was $0.35 per share for the first

quarter of 2026, consistent with the first quarter of 2025.

The $0.1 million, or $0.01 per share, decrease in ANII(1) in the first quarter of 2026 to $15.6 million, or $0.34

per share, from $15.7 million, or $0.35 per share, in the first quarter of 2025 was principally attributable to the

same factors noted above for the change in NII, but excluding the impact of the $0.6 million decrease in the

capital gains incentive fee accrual.

The per share changes in NII and ANII(1) in the first quarter of 2026 from the comparable period of the prior

year include the impact of a 3.2% increase in the weighted-average shares outstanding, primarily due to shares

issued in connection with the MSC Income Listing and shares issued through the dividend reinvestment plan,

partially offset by shares repurchased by the Fund, in each case since the beginning of the comparable period of

the prior year. NII and ANII(1) on a per share basis in the first quarter of 2026 each include a decrease of $0.01

per share resulting from a decrease in investment income considered less consistent or non-recurring in nature

compared to the first quarter of 2025, as discussed above.

The $13.2 million net increase in net assets resulting from operations in the first quarter of 2026 represents a

$2.7 million decrease from the first quarter of 2025. This decrease was primarily the result of (i) a $2.5 million

increase in net tax provision on the net fair value change of the portfolio investments resulting from a net tax

provision of $0.1 million in the first quarter of 2026 compared to a net tax benefit of $2.4 million in the

comparable period of the prior year and (ii) a $0.6 million decrease in the net fair value change of the Fund’s

4

portfolio investments resulting from the net impact of net realized gains/losses and net unrealized appreciation/

depreciation, with the decrease resulting from a net fair value decrease of $2.9 million in the first quarter of

2026 compared to a net fair value decrease of $2.3 million in the comparable period of the prior year, partially

offset by a $0.5 million increase in NII as discussed above. The $2.9 million net fair value decrease in the first

quarter of 2026 was the result of a net realized loss of $0.2 million and net unrealized depreciation (including

the reversal of net fair value depreciation recognized in prior periods due to the net realized loss in the quarter)

of $2.6 million. The $2.3 million net fair value decrease in the first quarter of 2025 was the result of a net

realized loss of $21.1 million, partially offset by net unrealized appreciation of $18.8 million. The $0.2 million

net realized loss from investments for the first quarter of 2026 was primarily the result of $3.7 million of

realized losses on the full exits of two private loan portfolio investments, partially offset by a $3.1 million

realized gain on the full exit of a private loan portfolio investment and a net realized gain on other private loan

portfolio investments.

The following table provides a summary of the total net unrealized depreciation of $2.6 million for the first

quarter of 2026:

	Three Months Ended March 31, 2026
	Private Loan		LMM (a)		Middle Market		Other		Total
	(in millions)
Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains / income) losses recognized during the current period	$ 0.4		$ (0.4)		$ —		$ —		$ —
Net unrealized appreciation (depreciation) relating to portfolio investments	(7.5)		5.4		(0.8)		0.3		(2.6)
Total net unrealized appreciation (depreciation) relating to portfolio investments	$ (7.1)		$ 5.0		$ (0.8)		$ 0.3		$ (2.6)

(a)Includes unrealized appreciation on 27 LMM portfolio investments and unrealized depreciation on 12 LMM

portfolio investments.

Liquidity and Capital Resources

As of March 31, 2026, the Fund had aggregate liquidity of $210.0 million, including (i) $15.6 million in cash

and cash equivalents and (ii) $194.4 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 March 31, 2026 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.

•$267.0 million in outstanding borrowings under the SPV Facility, with an interest rate of 5.9% based on the

applicable Secured Overnight Financing Rate (“SOFR”) effective for the contractual reset date of April 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.

•$83.0 million in outstanding borrowings under the Corporate Facility, with an interest rate of 5.7% based on

the applicable SOFR effective for the contractual reset date of April 1, 2026.

5

•$150.0 million of unsecured notes outstanding that bear interest at a rate of 4.04% per year (the “October

2026 Notes”). The October 2026 Notes mature on October 30, 2026 and may be redeemed in whole or in

part at any time at the Fund’s option subject to certain make-whole provisions.

•$150.0 million of May 2029 Notes outstanding that bear interest at a rate of 6.34% per year. The May 2029

Notes mature on May 31, 2029 and may be redeemed in whole or in part at any time at the Fund’s option

subject to certain make-whole provisions.

•The Fund maintains an investment grade rating from Kroll Bond Rating Agency, LLC (“KBRA”) of BBB-

with a stable outlook.

•The Fund’s net asset value totaled $719.5 million, or $15.87 per share.

•The Fund’s debt-to-equity ratio was 0.90x as of March 31, 2026.

•Effective on January 29, 2026, the Fund’s minimum regulatory asset coverage requirement decreased from

200% to 150%, increasing the Fund’s regulatory leverage capacity.

Investment Portfolio Information as of March 31, 2026(5)

The following table provides a summary of the investments in the Fund’s private loan portfolio and LMM

portfolio as of March 31, 2026:

		March 31, 2026
		Private Loan		LMM (a)
		(dollars in millions)
Number of portfolio companies		80		55
Fair value		$ 823.1		$ 507.6
Cost		$ 843.1		$ 399.7
Debt investments as a % of portfolio (at cost)		93.1 %		71.3 %
Equity investments as a % of portfolio (at cost)		6.9 %		28.7 %
% of debt investments at cost secured by first priority lien		99.5 %		99.9 %
Weighted-average annual effective yield (b)		10.5 %		12.6 %
Average EBITDA (c)		$ 30.6		$ 12.1

(a)The Fund had equity ownership in all of its LMM portfolio companies, and the Fund’s average fully diluted

equity ownership in those portfolio companies was 8%.

(b)The weighted-average annual effective yields were computed using the effective interest rates for all debt

investments as of March 31, 2026, including amortization of deferred debt origination fees and accretion of

original issue discount but excluding fees payable upon repayment of the debt investments and any debt

investments on non-accrual status, and are weighted based upon the principal amount of each applicable

debt investment as of March 31, 2026.

(c)The average EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization) is calculated using

a weighted-average for private loan portfolio companies and a simple average for LMM portfolio

companies. These calculations exclude certain portfolio companies, including four private loan portfolio

companies and three LMM portfolio companies, as EBITDA is not a meaningful valuation metric for the

Fund’s investments in these portfolio companies, and those portfolio companies whose primary purpose is

to own real estate and those portfolio companies whose primary operations have ceased and only residual

value remains.

The Fund’s total investment portfolio at fair value consists of approximately 60% private loan, 37% LMM, 2%

middle market and 1% other portfolio investments.

The fair value of the Fund’s LMM portfolio company equity investments was 204% 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

6

1.0 and a median total EBITDA to senior interest expense ratio of 3.0 to 1.0. Including all debt that is junior in

priority to the Fund’s debt position, these median ratios were 2.6 to 1.0 and 2.9 to 1.0, respectively.(5)(6)

As of March 31, 2026, the Fund’s investment portfolio also included:

•Middle market portfolio investments in eight portfolio companies, collectively totaling $23.0 million in fair

value and $40.3 million in cost basis, which comprised 1.7% and 3.1% of the Fund’s investment portfolio at

fair value and cost, respectively; and

•Other portfolio investments in seven entities, spread across four investment managers, collectively totaling

$15.6 million in fair value and $13.4 million in cost basis, which comprised 1.1% and 1.0% of the Fund’s

investment portfolio at fair value and cost, respectively.

As of March 31, 2026, investments on non-accrual status comprised 1.1% of the total investment portfolio at

fair value and 4.2% at cost, and the Fund’s total portfolio investments at fair value were 106% of the related

cost basis.

First Quarter 2026 Financial Results Conference Call / Webcast

MSC Income has scheduled a conference call for Friday, May 8, 2026 at 11:00 a.m. Eastern time to discuss the

first quarter 2026 financial results.(7)

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, May 15, 2026 and may be accessed

by dialing 201-612-7415 and using the passcode 13759639#. 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 Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2026 to be filed

with the U.S. Securities and Exchange Commission (the “SEC”) (www.sec.gov) and MSC Income’s First

Quarter 2026 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.

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ABOUT MSC ADVISER I, LLC

MSC Adviser I, LLC (the “Adviser”) is a wholly-owned subsidiary of Main Street that is registered as an

investment adviser under the Investment Advisers Act of 1940, as amended. The Adviser 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 the Adviser; 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.

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MSC INCOME FUND, INC.

Consolidated Statements of Operations

(in thousands, except shares and per share amounts)

(Unaudited)

	Three Months Ended March 31,
	2026		2025
INVESTMENT INCOME:
Interest, dividend and fee income:
Control investments	$ 1,195		$ 1,442
Affiliate investments	9,247		9,335
Non‑Control/Non‑Affiliate investments	23,645		22,450
Total investment income	34,087		33,227
EXPENSES:
Interest	(8,920)		(8,243)
Base management fee	(5,225)		(4,972)
Incentive fee on income	(3,099)		(2,023)
Incentive fee on capital gains	638		—
General and administrative	(1,039)		(1,027)
Internal administrative services expenses	(186)		(174)
Total expenses before expense waivers	(17,831)		(16,439)
Waiver of incentive fee on income	985		—
Total expenses, net of expense waivers	(16,846)		(16,439)
NET INVESTMENT INCOME BEFORE TAXES	17,241		16,788
Excise tax expense	(50)		(192)
Federal and state income and other tax expenses	(956)		(850)
NET INVESTMENT INCOME	16,235		15,746
NET REALIZED GAIN (LOSS):
Control investments	—		9
Affiliate investments	(1,656)		—
Non‑Control/Non‑Affiliate investments	1,415		(21,075)
Total net realized loss	(241)		(21,066)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Control investments	(4,452)		(833)
Affiliate investments	8,423		2,836
Non‑Control/Non‑Affiliate investments	(6,614)		16,780
Total net unrealized appreciation (depreciation)	(2,643)		18,783
Income tax benefit (provision) on net realized loss and net unrealized appreciation (depreciation)	(128)		2,412
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	$ 13,223		$ 15,875
NET INVESTMENT INCOME BEFORE TAXES PER SHARE—BASIC AND DILUTED	$ 0.37		$ 0.38
NET INVESTMENT INCOME PER SHARE—BASIC AND DILUTED	$ 0.35		$ 0.35
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE —BASIC AND DILUTED	$ 0.29		$ 0.36
WEIGHTED-AVERAGE SHARES OUTSTANDING—BASIC AND DILUTED	46,116,898		44,680,084

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MSC INCOME FUND, INC.

Consolidated Balance Sheets

(in thousands, except per share amounts)

		March 31, 2026		December 31, 2025
		(Unaudited)
ASSETS
Investments at fair value:
Control investments		$ 53,802		$ 58,372
Affiliate investments		426,618		406,771
Non‑Control/Non‑Affiliate investments		888,782		870,244
Total investments		1,369,202		1,335,387
Cash and cash equivalents		15,559		20,635
Interest and dividend receivable		11,942		12,273
Deferred financing costs		3,128		3,190
Prepaids and other assets		10,094		9,546
Total assets		$ 1,409,925		$ 1,381,031
LIABILITIES
Credit Facilities		$ 350,000		$ 453,000
October 2026 Notes		149,826		149,751
May 2029 Notes		149,274		—
Accounts payable and other liabilities		4,408		3,549
Interest payable		7,463		5,946
Dividend payable		16,324		16,772
Base management and incentive fees payable		7,340		8,388
Deferred tax liability, net		5,762		4,966
Total liabilities		690,397		642,372
NET ASSETS
Common stock		45		47
Additional paid‑in capital		765,979		782,007
Total overdistributed earnings		(46,496)		(43,395)
Total net assets		719,528		738,659
Total liabilities and net assets		$ 1,409,925		$ 1,381,031
NET ASSET VALUE PER SHARE		$ 15.87		$ 15.85

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MSC INCOME FUND, INC.

Reconciliation of Adjusted Net Investment Income and Adjusted Net Investment Income Before Taxes

(in thousands, except per share amounts)

(Unaudited)

	Three Months Ended
	March 31,
	2026		2025
Net investment income	$ 16,235		$ 15,746
Incentive fee on capital gains (3)	(638)		—
Adjusted net investment income (1)	15,597		15,746
Excise tax expense	50		192
Federal and state income and other tax expenses	956		850
Adjusted net investment income before taxes (2)	$ 16,603		$ 16,788
Per share amounts:
Net investment income per share -
Basic and diluted	$ 0.35		$ 0.35
Adjusted net investment income per share -
Basic and diluted (1)	$ 0.34		$ 0.35
Adjusted net investment income before taxes per share -
Basic and diluted (2)	$ 0.36		$ 0.38

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MSC INCOME FUND, INC.

Endnotes

(1) ANII is NII as determined in accordance with U.S. Generally Accepted Accounting Principles, or U.S.

GAAP, excluding the impact of the capital gains incentive fee(3). MSC Income believes presenting ANII and

the related per share amount is useful and appropriate supplemental disclosure for analyzing the Fund’s

financial performance since the calculation of the capital gains incentive fee is based on realized gains and

losses and unrealized fair value appreciation and depreciation, none of which are included in NII. However,

ANII is a non-U.S. GAAP measure and should not be considered as a replacement for NII or other earnings

measures presented in accordance with U.S. GAAP and should be reviewed only in connection with such

U.S. GAAP measures in analyzing MSC Income’s financial performance. A reconciliation of NII in

accordance with U.S. GAAP to ANII is detailed in the financial tables included with this press release.

(2) ANII before taxes is NII as determined in accordance with U.S. GAAP, excluding the impact of any tax

expenses included in NII and the capital gains incentive fee(3). MSC Income believes presenting ANII before

taxes and the related per share amount is useful and appropriate supplemental disclosure for analyzing the

Fund’s financial performance since (i) the calculation of the capital gains incentive fee is based on realized

gains and losses and unrealized fair value appreciation and depreciation, none of which are included in NII,

and (ii) tax expenses included in NII may include (a) excise tax expense, which is not solely attributable to

NII, and (b) deferred taxes, which are not payable in the current period. However, ANII before taxes is a

non-U.S. GAAP measure and should not be considered as a replacement for NII, NII before taxes or other

earnings measures presented in accordance with U.S. GAAP and should be reviewed only in connection

with such U.S. GAAP measures in analyzing MSC Income’s financial performance. A reconciliation of NII

in accordance with U.S. GAAP to ANII before taxes is detailed in the financial tables included with this

press release.

(3) Pursuant to the Amended Advisory Agreement, the incentive fee on capital gains is determined and payable

to the Adviser in arrears, if any, as of the end of each calendar year. This fee equals (a) 17.5% of the Fund’s

incentive fee capital gain, which is calculated as the Fund’s (i) cumulative net realized gains (net of any

related net income tax expense), minus (ii) cumulative unrealized depreciation (net of any related income

tax benefit, and excluding any unrealized appreciation), minus (b) the aggregate amount of any previously

paid capital gains incentive fee, in each case from the MSC Income Listing date through the applicable

calendar year ended. In accordance with U.S. GAAP, at the end of each reporting period, the Fund estimates

the capital gains incentive fee and adjusts the accrual for the fee based upon a hypothetical liquidation of its

investment portfolio at the then current fair value. Therefore, the calculation of the accrual equals (a) the

Fund’s cumulative change in net fair value, including both (i) the cumulative net realized gain/loss and (ii)

the cumulative net unrealized appreciation/depreciation (in both cases, net of any related cumulative net

income tax expense or benefit), minus (b) the aggregate amount of any previously paid capital gains

incentive fee, in each case from the MSC Income Listing date through the applicable period ended.

However, any capital gains incentive fee accrued related to the unrealized appreciation is neither earned nor

payable to the Adviser until such time that it is realized, and assuming at the end of a calendar year such

incentive fee capital gain exists excluding any cumulative unrealized appreciation (in each case, net of any

related net income tax expense or benefits). If the calculation results in an increase in the accrual compared

to the previous quarter, the Fund records an increase to the capital gains incentive fee accrual. If the

calculation results in a decrease to the estimated incentive fee on capital gains when compared to the

previous quarter, the accrual for the incentive fee on capital gains is reduced to the extent of such decrease.

For the first quarter of 2026, the Fund reduced the accrual on the capital gains incentive fee by $0.6 million.

For further discussion, see Note J — Related Party Transactions and Arrangements in the notes to the

consolidated financial statements included in Item 1. Consolidated Financial Statements and Supplementary

Data of the Fund’s Quarterly Report on Form 10-Q to be filed with the SEC on May 8, 2026.

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(4) Return on equity equals the net increase in net assets resulting from operations divided by the average

quarterly total net assets.

(5) Portfolio company financial information has not been independently verified by MSC Income.

(6) These credit statistics exclude portfolio companies on non-accrual status and portfolio companies for which

EBITDA is not a meaningful metric.

(7) No information contained on the Fund’s website or disclosed on the May 8, 2026 conference call, including

the webcast and the archived versions, is incorporated by reference in this press release or any of the Fund’s

filings with the SEC, and you should not consider that information to be part of this press release or any

other such filing.

FAQ

How did MSC Income Fund (MSIF) perform in Q1 2026?

MSC Income Fund generated net investment income of $16.2 million, or $0.35 per share, in Q1 2026. Total investment income reached $34.1 million, and adjusted net investment income was $15.6 million, or $0.34 per share, slightly below the prior-year level.

What was MSC Income Fund’s net asset value at March 31, 2026?

At March 31, 2026, MSC Income Fund reported net asset value of $719.5 million, or $15.87 per share. This compared to $15.85 per share at December 31, 2025, reflecting modest growth supported by net investment income and share repurchases below net asset value.

What dividends did MSC Income Fund declare for the first quarter of 2026?

For the first quarter of 2026, MSC Income Fund declared a regular quarterly dividend of $0.35 per share plus a supplemental dividend of $0.01 per share. These total dividends of $0.36 per share are payable in the second quarter of 2026 to shareholders of record on designated dates.

How much stock did MSC Income Fund repurchase in Q1 2026?

MSC Income Fund repurchased $16.0 million of its common stock in the first quarter of 2026 at prices below net asset value. Management reported that these repurchases increased net asset value per share by approximately $0.08, benefiting remaining shareholders through accretion.

What is MSC Income Fund’s leverage and liquidity position?

As of March 31, 2026, MSC Income Fund’s debt-to-equity ratio was 0.90x. The fund held total liquidity of $210.0 million, consisting of $15.6 million in cash and cash equivalents and $194.4 million of unused capacity under its corporate and SPV revolving credit facilities.

What new debt did MSC Income Fund issue in 2026 and on what terms?

During 2026, MSC Income Fund issued $150.0 million in aggregate principal amount of unsecured notes due May 31, 2029. These May 2029 Notes bear interest at 6.34% per year and are redeemable at the fund’s option, subject to stated make‑whole provisions in the documentation.

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