Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — GLADSTONE CAPITAL CORP

Accession: 0001193125-26-209037

Filed: 2026-05-06

Period: 2026-05-06

CIK: 0001143513

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — d122338d8k.htm (Primary)

EX-99.1 (d122338dex991.htm)

GRAPHIC (g122338g0506232800540.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: d122338d8k.htm · Sequence: 1

8-K

GLADSTONE CAPITAL CORP false 0001143513 0001143513 2026-05-06 2026-05-06

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 6, 2026

Gladstone Capital Corporation

(Exact Name of Registrant as Specified in Charter)

Maryland

814-00237

54-2040781

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification Number)

1521 Westbranch Drive, Suite 100

McLean, Virginia

22102

(Address of Principal Executive Offices)

(Zip Code)

(703) 287-5800

(Registrant’s telephone number, including area code)

(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:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

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, $0.001 par value per share

GLAD

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company ☐

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. ☐

Item 2.02

Results of Operations and Financial Condition.

On May 6, 2026, Gladstone Capital Corporation issued a press release announcing its financial results for the fiscal quarter ended March 31, 2026. The text of the press release is included as an exhibit to this Current Report on Form 8-K. The information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.

Description

99.1

Press Release of Gladstone Capital Corporation, dated May 6, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

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.

Gladstone Capital Corporation

Date: May 6, 2026

By:

/s/ Nicole Schaltenbrand

Nicole Schaltenbrand

Chief Financial Officer & Treasurer

EX-99.1

EX-99.1

Filename: d122338dex991.htm · Sequence: 2

EX-99.1

Exhibit 99.1

Gladstone Capital Corporation Reports Financial Results for its

Second Quarter Ended March 31, 2026

McLean, VA, May 6, 2026: Gladstone Capital Corporation (Nasdaq: GLAD) (the “Company”) today announced earnings for its second quarter

ended March 31, 2026. Please read the Company’s Quarterly Report on Form 10-Q, filed today with the U.S. Securities and Exchange Commission (the “SEC”), which is available on the

SEC’s website at www.sec.gov and the Investors section of the Company’s website at www.GladstoneCapital.com.

Summary Information (dollars in thousands, except per share data) (unaudited):

For the Quarter Ended:

March 31,

2026

December 31,

2025

Change

%

Change

Total investment income

$

25,992

$

24,511

$

1,481

6.0

%

Total expenses, net of credits

(14,154

)

(13,247

)

(907

)

6.8

Net investment income

11,838

11,264

574

5.1

Net investment income per common share

0.52

0.50

0.02

4.0

Cash distribution per common share

0.45

0.45

0.00

0.0

Net realized gain (loss)

(570

)

296

(866

)

NM

Net unrealized appreciation (depreciation)

4,779

(5,638

)

10,417

NM

Net increase (decrease) in net assets resulting from operations

15,459

5,454

10,005

183.4

Weighted average yield on interest-bearing investments

11.8

%

12.2

%

(0.4

)%

(3.3

)

Total invested

$

43,560

$

99,164

$

(55,604

)

(56.1

)

Total repayments and net proceeds

46,306

52,759

(6,453

)

(12.2

)

As of:

March 31,

2026

December 31,

2025

Change

%

Change

Total investments, at fair value

$

906,844

$

902,912

$

3,932

0.4

%

Fair value, as a percent of cost

98.0

%

97.5

%

0.5

%

0.5

Net asset value per common share

$

21.36

$

21.13

$

0.23

1.1

NM – not meaningful

Second Fiscal Quarter 2026 Highlights:

Portfolio Activity: Invested $34.0 million in three new portfolio companies and $9.6 million in

existing portfolio companies offsetting a large prepayment early in the period.

Net Investment Income: Prepayment fees and equity distributions more than offset lower SOFR rates lifting

net investment income by 5.1%.

Portfolio Appreciation: The operating performance and scale of several equity positions more than offset

any loan market valuation movements contributing to the $0.23 share increase in NAV per share.

-1-

Second Fiscal Quarter 2026 Results:

Total investment income increased by $1.5 million, or 6.0%, for the quarter ended March 31, 2026, compared to the prior quarter ended

December 31, 2025, driven primarily by a $2.2 million increase in other income, quarter over quarter, partially offset by a $0.7 million decrease in interest income, quarter over quarter. The decrease in interest income was driven

mainly by a decrease in the weighted average yield to 11.8% during the quarter ended March 31, 2026, as compared to 12.2% during the quarter ended December 31, 2025 (due primarily to a decrease in average SOFR). This decreasing factor was

offset by an increase in the weighted average principal balance of our interest-bearing investment portfolio to $794.0 million during the quarter ended March 31, 2026, as compared to $772.3 million during the quarter ended

December 31, 2025, an increase of $21.7 million, or 2.8%. Other income increased by $2.2 million, or 354.6%, quarter over quarter primarily due to increases in dividend income and prepayment fee income, quarter over quarter.

Total expenses increased by $0.9 million, or 6.8%, quarter over quarter, primarily due to a $0.8 million increase in the net base management fee,

driven by higher assets used to calculate the base management fee and lower deal origination fees which are credited to the base management fee.

Net

investment income for the quarter ended March 31, 2026 was $11.8 million, or $0.52 per share.

The net increase in net assets resulting

from operations was $15.5 million, or $0.68 per share, for the quarter ended March 31, 2026, compared to $5.5 million, or $0.24 per share, for the quarter ended December 31, 2025. The current quarter increase in net assets

resulting from operations was primarily driven by $11.8 million of net investment income and $4.8 million of net unrealized appreciation, partially offset by $0.6 million of net realized loss recognized during the quarter.

Subsequent Events: Subsequent to March 31, 2026, the following significant events occurred:

Portfolio Activity:

In April 2026, we invested $12.7 million in OneSource HoldCo LLC (“OneSource”) through secured

first lien debt and common equity. We also extended OneSource a $2.0 million line of credit commitment, of which $1.0 million was funded at close.

In April 2026, we invested $32.5 million in SWECO Worldwide, Inc. (“SWECO”) through secured

first lien debt and common equity. We also extended SWECO a $6.0 million line of credit commitment, which was unfunded at close.

Distributions and Dividends Declared:

In April 2026, our Board of Directors declared the following distributions to common and preferred stockholders:

Record Date

Payment Date

Distribution per

Common Share

April 24, 2026

April 30, 2026

$

0.15

May 20, 2026

May 29, 2026

0.15

June 23, 2026

June 30, 2026

0.15

Total for the Quarter

$

0.45

Record Date

Payment Date

Distribution per

Series A Preferred

Stock

April 27, 2026

May 5, 2026

$

0.130208

May 27, 2026

June 5, 2026

0.130208

June 25, 2026

July 2, 2026

0.130208

Total for the Quarter

$

0.390624

-2-

Comments from Gladstone Capital’s CEO and President, Bob Marcotte: “The strength of our

performance this quarter emanated from our lower middle market focus which supported the timely recycling of our invested capital while generating prepayment fees, as well as delivering equity distributions and appreciation from the organic growth

and maturity of our modest equity exposure. Based on the current outlook for floating rates and prevailing spreads, we feel well positioned to sustain our distributions and deliver strong economic returns for our shareholders over the balance of

2026.”

Conference Call for Stockholders: The Company will hold its earnings release conference call on Thursday, May 7, 2026, at 8:30

a.m. Eastern Time. Please call (866) 424-3437 to enter the conference call. An operator will monitor the call and set a queue for any questions. A replay of the conference call will be available through

May 14, 2026. To hear the replay, please dial (877) 660-6853 and use playback conference number 13759085. The replay of the conference call will be available beginning approximately one hour after the

call concludes. The live audio broadcast of the Company’s quarterly conference call will also be available online at www.GladstoneCapital.com. The event will be archived and available for replay on the investors section of the

Company’s website.

About Gladstone Capital Corporation: Gladstone Capital Corporation is a publicly-traded business development

company that invests in debt and equity securities, consisting primarily of secured first and second lien term loans to lower middle market businesses in the United States. Information on the business activities of Gladstone Capital and the other

publicly-traded Gladstone funds can be found at www.GladstoneCompanies.com.

To obtain a paper copy of the Company’s most recent Form 10-Q, please contact the Company at 1521 Westbranch Drive, Suite 100, McLean, VA 22102, ATTN: Investor Relations. The financial information above is not comprehensive and is without notes, so readers should obtain

and carefully review the Company’s Form 10-Q for the quarter ended March 31, 2026, including the notes to the consolidated financial statements contained therein.

Investor Relations Inquiries: Please visit www.gladstonecompanies.com or (703) 287-5893.

Forward-looking Statements:

The statements in

this press release about future growth and shareholder returns are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of

1934, as amended. These forward-looking statements inherently involve certain risks and uncertainties in predicting future results and conditions. Although these statements are based on our current plans that are believed to be reasonable as of

the date of this press release, a number of factors could cause actual results and conditions to differ materially from these forward-looking statements, including those factors described from time to time in our filings with the U.S. Securities and

Exchange Commission. The Company undertakes no obligation to publicly release the result of any revisions to these forward-looking statements that may be made to reflect any future events or otherwise, except as required by law.

-3-

GRAPHIC

GRAPHIC

Filename: g122338g0506232800540.jpg · Sequence: 6

Binary file (6369 bytes)

Download g122338g0506232800540.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

Document and Entity Information

May 06, 2026

Cover [Abstract]

Entity Registrant Name

GLADSTONE CAPITAL CORP

Amendment Flag

false

Entity Central Index Key

0001143513

Document Type

8-K

Document Period End Date

May 06, 2026

Entity Incorporation State Country Code

MD

Entity File Number

814-00237

Entity Tax Identification Number

54-2040781

Entity Address, Address Line One

1521 Westbranch Drive

Entity Address, Address Line Two

Suite 100

Entity Address, City or Town

McLean

Entity Address, State or Province

VA

Entity Address, Postal Zip Code

22102

City Area Code

(703)

Local Phone Number

287-5800

Written Communications

false

Soliciting Material

false

Pre Commencement Tender Offer

false

Pre Commencement Issuer Tender Offer

false

Security 12b Title

Common Stock, $0.001 par value per share

Trading Symbol

GLAD

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

false

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration