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): ~~July~~August 104, 2025

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
7.75% notes due 2028	GLADZ	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 72.~~01.~~02 ~~Regulation~~Results FDof ~~Disclosure~~Operations and Financial Condition.

On ~~July~~August 104, 2025, Gladstone Capital Corporation issued a press release announcing its financial results for the fiscal quarter ended June 30, ~~filed~~2025. ~~herewith~~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, ~~announcing~~is ~~that~~being ~~its~~furnished ~~board~~and shall not be deemed “filed” for purposes of ~~directors~~Section 18 ~~declared~~of ~~monthly~~the ~~cash~~Securities ~~distributions~~Exchange ~~for~~Act ~~its~~of ~~common~~1934, ~~stock~~as ~~and~~amended ~~6.25%~~(the ~~Series~~“Exchange AAct”), ~~Cumulative~~or ~~Redeemable~~incorporated ~~Preferred~~by ~~Stock~~reference ~~for~~in ~~each~~any filing under the Securities Act of ~~July~~1933, ~~August~~as ~~and~~amended, ~~September 2025~~or the Exchange Act, regardless of any general incorporation language in such filing.

The information disclosed under this Item 7.01, including Exhibit 99.1 hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities and 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 9.01.

Financial Statements and Exhibits.

(d) Exhibits.

ExhibitNo.		Description
99.1		Press Release ~~issued~~of by Gladstone Capital Corporation, ondated ~~July~~August 104, 2025.
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: July 10, 2025

/s/ Nicole Schaltenbrand

Date: August 4, 2025

/s/ Nicole Schaltenbrand

Nicole Schaltenbrand

Chief Financial Officer & Treasurer

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