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 22, 2026

FS Specialty Lending Fund

(Exact name of Registrant as specified in its charter)

Delaware

(State or other jurisdiction

of incorporation)

811-24080

(Commission

File Number)

33-4638504

(I.R.S. Employer

Identification No.)

3025 JFK Boulevard, OFC 500

Philadelphia, Pennsylvania

(Address of principal executive offices)

19104

(Zip Code)

Registrant’s telephone number, including area code: (215) 495-1150

N/A

(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))

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

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 7.01.

Regulation FD Disclosure.

FS Specialty Lending Fund (the “Company”) will make available within the “Investor Relations” section of the Company’s website (https://www.fssl.futurestandard.com/fund-information#investor-relations) a presentation containing financial and operating information after the market close on Friday, May 22, 2026. Except as may be required by federal securities laws, the Company undertakes no duty or obligation to update or revise the information contained in the presentation.

The information furnished in this Item 7.01 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and is not incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”).

FORWARD-LOOKING STATEMENTS

This Current Report on Form 8-K may contain certain forward-looking statements, including statements with regard to future events or the future performance or operation of the Company. Words such as “anticipates,” “believes,” “expects,” “projects” and “future” or similar expressions are intended to identify forward-looking statements. These forward-looking statements are subject to the inherent uncertainties in predicting future results and conditions. Certain factors could cause actual results to differ materially from those projected in these forward-looking statements. Factors that could cause actual results to differ materially include, without limitation, changes in the economy, risks associated with possible disruption in the Company’s operations or the economy generally due to terrorism, geo-political risks, natural disasters or pandemics, future changes in laws or regulations and conditions in the Company’s operating area, and the price at which shares of common stock may trade on the New York Stock Exchange. Some of these factors are enumerated in the filings the Company makes with the Securities and Exchange Commission. The Company undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Item 9.01

Financial Statements and Exhibits

(d)

Exhibits

	Exhibit No.	Description

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

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		FS Specialty Lending Fund

Date:	May 22, 2026	By:	/s/ Stephen S. Sypherd
			Stephen S. Sypherd
			General Counsel

FS Specialty Lending Fund filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits