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): April 28, 2026

FS KKR Capital Corp.

(Exact name of Registrant as specified in its charter)

Maryland

814-00757

26-1630040

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

3025 JFK Boulevard, OFC 500

Philadelphia, Pennsylvania

19104

(Address of principal executive offices)

(Zip Code)

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

None

(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(s)		Name of each exchange on which registered
Common stock		FSK		New York Stock Exchange

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.

On April 28, 2026, FS KKR Capital Corp. (the “Company”) announced a new date and time for its conference call to discuss the Company’s first quarter 2026 results, which will now be held at 9:00 a.m. on Monday, May 11, 2026. A copy of the press release is furnished as Exhibit 99.1.

The information in this Item 7.01, including Exhibit 99.1, will not be treated as filed for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section. This information will not be incorporated by reference into a filing under the Securities Act of 1933, or into another filing under the Exchange Act, unless that filing expressly refers to specific information in this Form 8-K.

Item 9.01.

Financial Statements and Exhibits.

(d)

Exhibits.

EXHIBIT NUMBER		DESCRIPTION

99.1		Press Release, dated April 28, 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, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	FS KKR Capital Corp.

Date: April 28, 2026	By:	/s/ Stephen Sypherd
		Stephen Sypherd
		General Counsel and Secretary

EXHIBIT INDEX

EXHIBIT NUMBER		DESCRIPTION

99.1		Press Release, dated April 28, 2026.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

Exhibit 99.1

FSK Reschedules Earnings Release and Conference Call for First Quarter 2026

PHILADELPHIA AND NEW YORK – April 28, 2026 – Due to a scheduling conflict, FS KKR Capital Corp. (NYSE: FSK) announced today that it has rescheduled the release of its first quarter 2026 results and accompanying earnings call. FSK will now release its first quarter 2026 results before the opening of trading on the New York Stock Exchange on Monday, May 11, 2026.

FSK will host its first quarter 2026 results conference call via live webcast on Monday, May 11, 2026 at 9:00 a.m. (Eastern Time). All interested parties are welcome to participate and can access the live webcast from the For Investors section of FSK’s website at www.fskkrcapitalcorp.com under Events & Presentations or through the following URL: https://edge.media-server.com/mmc/p/ysenbwyi.

Research analysts who wish to participate in the conference call are requested to register a day in advance or at a minimum 15 minutes before the start of the call using the following URL: https://register-conf.media-server.com/register/BI86a0953ea3aa44758a814b6928917e4c. Upon registration, all telephone participants will receive a confirmation email detailing how to join the conference call, including the dial-in number along with a unique PIN number that can be used to access the call.

An investor presentation of financial information will be available by visiting the For Investors section of FSK’s website, under Events & Presentations before the market open on Monday, May 11, 2026.

A replay of the call will be available beginning shortly after the end of the call by visiting the For Investors section of FSK’s website, under Events & Presentations.

About FS KKR Capital Corp.

FSK is a leading publicly traded business development company (BDC) focused on providing customized credit solutions to private middle market U.S. companies. FSK seeks to invest primarily in the senior secured debt and, to a lesser extent, the subordinated debt of private middle market companies. FSK is advised by FS/KKR Advisor, LLC. For more information, please visit www.fskkrcapitalcorp.com.

About FS/KKR Advisor, LLC

FS/KKR Advisor, LLC (FS/KKR) is a partnership between Future Standard, formerly FS Investments, and KKR Credit that serves as the investment adviser to FSK and other business development companies.

Future Standard is a global alternative asset manager serving institutional and private wealth clients, investing across private equity, credit and real estate. With a 30+ year track record of value creation and over $93 billion in assets under management, we back the business owners and financial sponsors that drive growth and innovation across the middle market, transforming untapped potential into durable value.

KKR Credit is a subsidiary of KKR & Co. Inc., a leading global investment firm that offers alternative asset management as well as capital markets and insurance solutions. KKR aims to generate attractive investment returns by following a patient and disciplined investment approach, employing world-class people, and supporting growth in its portfolio companies and communities. KKR sponsors investment funds that invest in private equity, credit and real assets and has strategic partners that manage hedge funds. KKR’s insurance subsidiaries offer retirement, life and reinsurance products under the management of Global Atlantic Financial Group. References to KKR’s investments may include the activities of its sponsored funds and insurance subsidiaries. For additional information about KKR & Co. Inc. (NYSE: KKR), please visit KKR’s website at www.kkr.com. For additional information about Global Atlantic Financial Group, please visit Global Atlantic Financial Group’s website at www.globalatlantic.com.

Contact Information:

Investor Relations
Caitlin Welch
[email protected]

Future Standard Media Team
Marc Hazelton
[email protected]