FSK / FS KKR Capital Corp. - SEC申報文件，年度報告，委任書

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): June 1, 2026 FS KKR Capital Corp.

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): June 1, 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

$900,000,000 7.500% Notes due 2031

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-282226 PROSPECTUS SUPPLEMENT To the Prospectus dated September 19, 2024 $900,000,000 7.500% Notes due 2031 We are offering for sale $900,000,000 in aggregate principal amount of 7.500% Notes due 2031, which we refer to as the Notes. The Notes will mature on August 1, 2031. We will pay interest on the Notes semi-annually in arrears on

NINTH AMENDMENT TO LOAN AND SERVICING AGREEMENT (CCT Tokyo Funding LLC)

Exhibit 10.1 EXECUTION VERSION NINTH AMENDMENT TO LOAN AND SERVICING AGREEMENT (CCT Tokyo Funding LLC) THIS NINTH AMENDMENT TO LOAN AND SERVICING AGREEMENT, dated as of June 1, 2026 (this “Amendment”), is entered into by and among CCT TOKYO FUNDING LLC, as the Borrower (the “Borrower”), FS KKR CAPITAL CORP. (as successor in interest to Corporate Capital Trust, Inc.), as the Servicer, the Lender id

Security Type

Calculation of Filing Fee Tables N-2 FS KKR Capital Corp Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt 7.

FS KKR Capital Corp.

  Exhibit 1.1   FS KKR Capital Corp.   $900,000,000 Aggregate Principal Amount 7.500% Notes due 2031   UNDERWRITING AGREEMENT   June 1, 2026   BofA Securities, Inc.  BMO Capital Markets Corp.  J.P. Morgan Securities LLC  KKR Capital Markets LLC  RBC Capital Markets, LLC  SMBC Nikko Securities America, Inc.   As Representatives of the Underwriters named in Schedule A hereto   c/o BofA Securities, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2) FS KKR Capital Corp. (Name of Subject Company

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2) FS KKR Capital Corp. (Name of Subject Company) FS KKR Capital Corp. (Names of Persons Filing Statement) COMMON STOCK, $0.001 PAR VALUE PER SHARE (Title of Class of Securities) 302635 206 (CUSIP N

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): June 1, 2026 FS KKR Capital Corp.

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): June 1, 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

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): June 2, 2026 FS KKR Capital Corp.

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): June 2, 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

FSK Prices Public Offering of $900,000,000 7.500% Unsecured Notes Due 2031

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Prices Public Offering of $900,000,000 7.500% Unsecured Notes Due 2031 PHILADELPHIA, PA and NEW YORK, NY – June 2, 2026 – FS KKR Capital Corp. (NYSE: FSK) announced that it has priced an underwritten public offering of $900,000,000 in aggregate principal amount of its 7.500% unsecured notes due 2031 (the “Notes”). The Notes will mature on August 1, 2031 and m

FS KKR Capital Corp. $900,000,000 7.500% Notes due 2031 PRICING TERM SHEET June 1, 2026

Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated June 1, 2026, Prospectus dated September 19, 2024 (Registration No.

SUBJECT TO COMPLETION, DATED JUNE 1, 2026

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-282226 The information in this preliminary prospectus supplement is not complete and may be changed. An effective registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these sec

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1) FS KKR Capital Corp. (Name of Subject Company

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1) FS KKR Capital Corp. (Name of Subject Company) FS KKR Capital Corp. (Names of Persons Filing Statement) COMMON STOCK, $0.001 PAR VALUE PER SHARE (Title of Class of Securities) 302635 206 (CUSIP N

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 18, 2026 FS KKR Capital Corp.

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 18, 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

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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 10, 2026 FS KKR Capital Corp.

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 10, 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 FS KKR Capital Corp. (Name of Subject Company) FS KKR Capital C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 FS KKR Capital Corp. (Name of Subject Company) FS KKR Capital Corp. (Names of Persons Filing Statement) COMMON STOCK, $0.001 PAR VALUE PER SHARE (Title of Class of Securities) 302635 206 (CUSIP Number of Class of

Execution Version

Execution Version AMENDMENT NO. 1 THIS AMENDMENT NO. 1, dated as of May 8, 2026 (this “Amendment”), to Credit Agreement (capitalized terms used herein and not otherwise defined shall have the meanings given to such terms in the Credit Agreement (as defined below)) is among FS KKR CAPITAL CORP., a Maryland corporation (the “Borrower”), each other Obligor, JPMORGAN CHASE BANK, N.A., as administrativ

FS KKR Capital Corp. Announces First Quarter 2026 Results and Strategic Value Enhancement Actions Declares Second Quarter 2026 Distribution of $0.42 per share

Exhibit 99.1 FS KKR Capital Corp. Announces First Quarter 2026 Results and Strategic Value Enhancement Actions Declares Second Quarter 2026 Distribution of $0.42 per share PHILADELPHIA, PA AND NEW YORK, NY – May 11, 2026 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter ended March 31, 2026 and announced certain strategic value

PURCHASE AGREEMENT

Exhibit 10.1 Execution Version PURCHASE AGREEMENT THIS PURCHASE AGREEMENT (this “Agreement”) is entered into as of May 10, 2026, by and among FS KKR Capital Corp., a Maryland corporation (the “Company”), and KKR Alternative Assets L.P., a Delaware limited partnership (the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Agreement, the Company desires to issue, and the P

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2026 ¨ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2026 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of reg

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 10, 2026 FS KKR Capital Corp.

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 10, 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

ARS

Fellow Stockholder, We hope that this letter finds you well. 2025 was a year characterized by changing investor sentiment across the Private Credit industry. During much of the first seven months of the year, many business development companies (BDCs), including FS KKR Capital Corp. (FSK), traded close to or above their net asset value on a per share basis. During the final five months of the year

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

FSK Reschedules Earnings Release and Conference Call for First Quarter 2026

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

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 Cor

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 Fil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of

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 10, 2026 FS KKR Capital Cor

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 10, 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 Fil

FSK Announces Earnings Release and Conference Call Schedule for First Quarter 2026

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for First Quarter 2026 PHILADELPHIA AND NEW YORK – April 9, 2026 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its first quarter 2026 results after the close of trading on the New York Stock Exchange on Wednesday, May 6, 2026. FSK will host its first quarter 2026 results conference call via live webcast

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 9, 2026 FS KKR Capital Corp

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 9, 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of

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): March 24, 2026 FS KKR Capital Cor

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): March 24, 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 Fil

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): March 5, 2026 FS KKR Capital Corp

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): March 5, 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

DESCRIPTION OF SECURITIES

Exhibit 4.20 DESCRIPTION OF SECURITIES FS KKR Capital Corp. (“we,” “our,” or the “Company”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $0.001 per share (“common stock”). Common Stock, par value $0.001 per share Our charter authorizes us to issue up to 800,000,000 shares of stock, of wh

THIRD AMENDMENT TO LOAN AND SERVICING AGREEMENT (CCT Tokyo Funding LLC)

EXECUTION VERSION THIRD AMENDMENT TO LOAN AND SERVICING AGREEMENT (CCT Tokyo Funding LLC) THIS THIRD AMENDMENT TO LOAN AND SERVICING AGREEMENT, dated as of March 9, 2018 (this “Amendment”), is entered into by and among CCT TOKYO FUNDING LLC, as the Borrower (the “Borrower”), CORPORATE CAPITAL TRUST, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 ¨ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO COMMISSION FILE NUMBER: 814-00757 FS KKR

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): February 25, 2026 FS KKR Capital

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): February 25, 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

Credit Opportunities Partners JV, LLC and Subsidiaries Consolidated Statements of Assets and Liabilities

Credit Opportunities Partners JV, LLC and Subsidiaries Consolidated Financial Statements As of December 31, 2025 and 2024 and for the years ended December 31, 2025, 2024 and 2023 and Independent Auditor’s Report CREDIT OPPORTUNITIES PARTNERS JV, LLC Index December 31, 2025 Page Independent Auditor’s Report 1 Consolidated Financial Statements Consolidated Statements of Assets and Liabilities as of

Subsidiaries of FS KKR Capital Corp.

Exhibit 21.1 Subsidiaries of FS KKR Capital Corp. Name of Subsidiary State of Incorporation or Organization CCT Dublin Funding Designated Activity Company Ireland CCT Holdings II LLC Delaware CCT Tokyo Funding LLC Delaware FCF LLC Delaware FS KKR MM CLO 1 LLC Delaware KKR - FSK CLO 2 LLC Delaware KKR - FSK CLO 3 LLC Delaware FSIC Investments, Inc. Delaware IC Altus Investments, LLC Delaware IC Ame

FS KKR Capital Corp. Announces Fourth Quarter and Full Year 2025 Results Declares First Quarter 2026 Distribution of $0.48 per Share

Exhibit 99.1 FS KKR Capital Corp. Announces Fourth Quarter and Full Year 2025 Results Declares First Quarter 2026 Distribution of $0.48 per Share PHILADELPHIA, PA AND NEW YORK, NY – February 25, 2026 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter and year ended December 31, 2025, and that its board of directors has declared a

Statement On the Prohibition of Insider Trading July 2025

Statement On the Prohibition of Insider Trading July 2025 This Statement on the Prohibition of Insider Trading applies to FS KKR Capital Corp.

FSK Announces Earnings Release and Conference Call Schedule for Fourth Quarter and Full Year 2025

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Fourth Quarter and Full Year 2025 PHILADELPHIA AND NEW YORK – January 21, 2026 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its fourth quarter and full year 2025 results after the close of trading on the New York Stock Exchange on Wednesday, February 25, 2026. FSK will host its fourth quarter and fu

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): January 21, 2026 FS KKR Capital C

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): January 21, 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 F

PORTFOLIO MANAGEMENT AGREEMENT dated as of December 18, 2025 KKR – FSK CLO 3 LLC, FS KKR CAPITAL CORP., Portfolio Manager Table of Contents

Exhibit 10.3 Execution Version PORTFOLIO MANAGEMENT AGREEMENT dated as of December 18, 2025 between KKR – FSK CLO 3 LLC, Issuer and FS KKR CAPITAL CORP., Portfolio Manager Table of Contents Page 1. Definitions 2 2. General Duties of the Portfolio Manager 3 3. Brokerage 7 4. Additional Activities of the Portfolio Manager and its Affiliates 9 5. Conflicts of Interest 11 6. Records 12 7. Obligations

CLASS A-1 CREDIT AGREEMENT dated as of December 18, 2025 KKR - FSK CLO 3 LLC as Borrower, THE VARIOUS FINANCIAL INSTITUTIONS TIME TO TIME PARTY HERETO, as Lenders, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Loan Agent U.S. BANK TRUST COMPANY,

Exhibit 10.4 EXECUTION VERSION CLASS A-1 CREDIT AGREEMENT dated as of December 18, 2025 among KKR - FSK CLO 3 LLC as Borrower, THE VARIOUS FINANCIAL INSTITUTIONS TIME TO TIME PARTY HERETO, as Lenders, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Loan Agent and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Collateral Trustee Table of Contents Page ARTICLE I DEFINITIONS AND INTERPRETATION 1

  LOAN SALE AGREEMENT

Exhibit 10.2   EXECUTION VERSION   LOAN SALE AGREEMENT   by and between   KKR – FSK CLO 3 LLC, as the Purchaser   and   FS KKR CAPITAL CORP., as the Seller   Dated as of December 18, 2025       Table of Contents   Page   ARTICLE I. DEFINITIONS 1       Section 1.1. General 1       Section 1.2. Specific Terms 2       Section 1.3. Other Terms 3       Section 1.4. Computation of Time Periods 4       A

KKR – FSK CLO 3 LLC Issuer U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION Collateral Trustee INDENTURE AND SECURITY AGREEMENT Dated as of December 18, 2025 TABLE OF CONTENTS

Exhibit 10.1 KKR – FSK CLO 3 LLC Issuer U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION Collateral Trustee INDENTURE AND SECURITY AGREEMENT Dated as of December 18, 2025 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 2 Section 1.1. Definitions 2 Section 1.2. Assumptions as to Assets 77 ARTICLE II THE DEBT 82 Section 2.1. Forms Generally 82 Section 2.2. Forms of Notes 83 Section 2.3. Authorized Amount;

CLASS A-1 CREDIT AGREEMENT dated as of December 18, 2025 KKR - FSK CLO 3 LLC as Borrower, THE VARIOUS FINANCIAL INSTITUTIONS TIME TO TIME PARTY HERETO, as Lenders, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Loan Agent U.S. BANK TRUST COMPANY,

Exhibit 10.5 EXECUTION VERSION CLASS A-1 CREDIT AGREEMENT dated as of December 18, 2025 among KKR - FSK CLO 3 LLC as Borrower, THE VARIOUS FINANCIAL INSTITUTIONS TIME TO TIME PARTY HERETO, as Lenders, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Loan Agent and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Collateral Trustee Table of Contents Page ARTICLE I DEFINITIONS AND INTERPRETATION 1

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): December 18, 2025 FS KKR Capital

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): December 18, 2025 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

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): November 13, 2025 FS KKR Capital

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): November 13, 2025 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2025 ¨ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2025 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of

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): November 5, 2025 FS KKR Capital C

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): November 5, 2025 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 F

FOURTH AMENDMENT TO LOAN AND SECURITY AGREEMENT

Execution Version FOURTH AMENDMENT TO LOAN AND SECURITY AGREEMENT THIS FOURTH AMENDMENT TO LOAN AND SECURITY AGREEMENT (this “Amendment”), dated as of September 26, 2025, is entered into by and among: (1)AMBLER FUNDING LLC, a Delaware limited liability company, as the borrower (the “Borrower”); (2)EACH OF THE LENDERS PARTY TO THE AGREEMENT (as defined below; collectively, the “Lenders”); (3)ALLY BANK, as the administrative agent (“Ally Bank” and in such capacity, the “Administrative Agent”); and (4)WELLS FARGO BANK, N.

ARTICLE I

EXECUTION COPY FIRST AMENDMENT TO LOAN AND SERVICING AGREEMENT This FIRST AMENDMENT TO LOAN AND SERVICING AGREEMENT (this “Amendment”), dated as of September 5, 2025, is entered into by and among: (1)CALLOWHILL STREET FUNDING LLC, a Delaware limited liability company, as the borrower (the “Borrower”); (2)FS KKR CAPITAL CORP.

FS KKR Capital Corp. Announces Third Quarter 2025 Results

Exhibit 99.1 FS KKR Capital Corp. Announces Third Quarter 2025 Results PHILADELPHIA, PA AND NEW YORK, NY – November 5, 2025 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter ended September 30, 2025, and that its board of directors previously, on October 8, 2025, declared a fourth quarter 2025 distribution of $0.70 per share. Fi

FSK Announces Earnings Release and Conference Call Schedule for Third Quarter 2025; Declares Fourth Quarter 2025 Distribution of $0.70 per share

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Third Quarter 2025; Declares Fourth Quarter 2025 Distribution of $0.70 per share PHILADELPHIA AND NEW YORK – October 8, 2025 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its third quarter 2025 results after the close of trading on the New York Stock Exchange on Wednesday, November 5, 2025, and that

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): October 8, 2025 FS KKR Capital Co

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): October 8, 2025 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 Fi

FSK Completes Public Offering of $400,000,000 6.125% Unsecured Notes Due 2031

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Completes Public Offering of $400,000,000 6.125% Unsecured Notes Due 2031 PHILADELPHIA, PA and NEW YORK, NY – September 25, 2025 – FS KKR Capital Corp. (NYSE: FSK) today announced that it has completed its previously announced offering of $400,000,000 in aggregate principal amount of its 6.125% unsecured notes due 2031 (the “Notes”). BofA Securities, Inc., BM

FIFTEENTH SUPPLEMENTAL INDENTURE

Exhibit 4.1   Execution Version   FIFTEENTH SUPPLEMENTAL INDENTURE   between   FS KKR CAPITAL CORP.   and   U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION,   as Trustee   Dated as of September 25, 2025     FIFTEENTH SUPPLEMENTAL INDENTURE   THIS FIFTEENTH SUPPLEMENTAL INDENTURE, dated as of September 25, 2025, is between FS KKR Capital Corp., a Maryland corporation (the “Company”), and U.S. Bank Tr

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): September 25, 2025 FS KKR Capital

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): September 25, 2025 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

$400,000,000 6.125% Notes due 2031

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-282226 PROSPECTUS SUPPLEMENT To the Prospectus dated September 19, 2024 $400,000,000 6.125% Notes due 2031 We are offering for sale $400,000,000 in aggregate principal amount of 6.125% Notes due 2031, which we refer to as the Notes. The Notes will mature on January 15, 2031. We will pay interest on the Notes semi-annually in arrears o

Security Type

Calculation of Filing Fee Tables N-2 FS KKR Capital Corp Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt 6.

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): September 18, 2025 FS KKR Capital

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): September 18, 2025 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

FS KKR Capital Corp. $400,000,000 Aggregate Principal Amount 6.125% Notes due 2031 UNDERWRITING AGREEMENT

Exhibit 1.1 Execution Version FS KKR Capital Corp. $400,000,000 Aggregate Principal Amount 6.125% Notes due 2031 UNDERWRITING AGREEMENT September 18, 2025 BofA Securities, Inc. BMO Capital Markets Corp. ING Financial Markets LLC J.P. Morgan Securities LLC KKR Capital Markets LLC SMBC Nikko Securities America, Inc. Truist Securities, Inc. As Representatives of the Underwriters named in Schedule A h

FS KKR Capital Corp. $400,000,000 6.125% Notes due 2031 PRICING TERM SHEET September 18, 2025

Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated September 18, 2025, Prospectus dated September 19, 2024 (Registration No.

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): September 19, 2025 FS KKR Capital

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): September 19, 2025 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

FSK Prices Public Offering of $400,000,000 6.125% Unsecured Notes Due 2031

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Prices Public Offering of $400,000,000 6.125% Unsecured Notes Due 2031 PHILADELPHIA, PA and NEW YORK, NY – September 19, 2025 – FS KKR Capital Corp. (NYSE: FSK) announced that it has priced an underwritten public offering of $400,000,000 in aggregate principal amount of its 6.125% unsecured notes due 2031 (the “Notes”). The Notes will mature on January 15, 20

SUBJECT TO COMPLETION, DATED SEPTEMBER 18, 2025

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-282226 The information in this preliminary prospectus supplement is not complete and may be changed. An effective registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these sec

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): August 15, 2025 FS KKR Capital Co

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): August 15, 2025 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 Fi

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): August 13, 2025 FS KKR Capital Co

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): August 13, 2025 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 Fi

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): August 6, 2025 FS KKR Capital Cor

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): August 6, 2025 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 Fil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2025 ¨ TRANSITION REPORT PURSUANT TO S

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2025 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of regi

FS KKR Capital Corp. Announces Second Quarter 2025 Results Declares Third Quarter 2025 Distribution of $0.70 per share

Exhibit 99.1 FS KKR Capital Corp. Announces Second Quarter 2025 Results Declares Third Quarter 2025 Distribution of $0.70 per share PHILADELPHIA, PA AND NEW YORK, NY – August 6, 2025 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter ended June 30, 2025, and that its board of directors has declared a third quarter 2025 distributi

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 16, 2025 FS KKR CAPITAL CORP

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 16, 2025 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

Third Amended and Restated Senior Secured Revolving Credit Agreement, dated as of July 16, 2025, by and among FS KKR Capital Corp., as borrower, JPM Chase Bank, N.A., as administrative agent, ING Capital LLC, as collateral agent, and the lenders, documentation agents, joint bookrunners, and joint lead arrangers party thereto.

Exhibit 10.1 EXECUTION VERSION THIRD AMENDED AND RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT dated as of July 16, 2025 among FS KKR CAPITAL CORP., as Borrower, The LENDERS Party Hereto and JPMORGAN CHASE BANK, N.A. as Administrative Agent ING CAPITAL LLC, as Collateral Agent $4,700,000,000 ING CAPITAL LLC, as Syndication Agent BANK OF MONTREAL, MUFG BANK, LTD., SUMITOMO MITSUI BANKING CORPO

Financial Statements and Exhibits, Results of Operations and Financial Condition

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 10, 2025 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

FSK Announces Earnings Release and Conference Call Schedule for Second Quarter 2025

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Second Quarter 2025 PHILADELPHIA AND NEW YORK – July 10, 2025 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its second quarter 2025 results after the close of trading on the New York Stock Exchange on Wednesday, August 6, 2025. FSK will host its second quarter 2025 results conference call via live we

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): June 20, 2025 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

Submission of Matters to a Vote of Security Holders

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): June 18, 2025 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

Loan and Servicing Agreement, dated June 2, 2025, by and among Callowhill Street Funding LLC, FS KKR Capital Corp., Canadian Imperial Bank of Commerce, and the financial institutions party thereto.

  Exhibit 10.1   EXECUTION COPY       LOAN AND SERVICING AGREEMENT   among   CALLOWHILL STREET FUNDING LLC, as the Borrower   FS KKR Capital Corp., as the Transferor and the Servicer   CANADIAN IMPERIAL BANK OF COMMERCE, as the Administrative Agent   EACH OF THE LENDERS FROM TIME TO TIME PARTY HERETO, as the Lenders   and   COMPUTERSHARE TRUST COMPANY, N.A., as the Securities Intermediary, the Col

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): June 2, 2025 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of

Regulation FD Disclosure

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 15, 2025 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

Current Report

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 9, 2025 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 N

Up to $750 million Common Stock

Table of Contents PROSPECTUS SUPPLEMENT Filed Pursuant to Rule 424(b)(2) To the Prospectus dated September 19, 2024 File No.

.1 to the Registrant’s Current Report on Form 8-K filed on

Exhibit 1.1   FS KKR Capital Corp.   Up to $750,000,000 Shares of Common Stock (par value $0.001 per share)   EQUITY DISTRIBUTION AGREEMENT   May 9, 2025   [●]   Ladies and Gentlemen:   FS KKR Capital Corp, a Maryland corporation (the “Company”), and FS/KKR Advisor, LLC, a Delaware limited liability company registered as an investment adviser (the “Adviser”), confirm their agreement (this “Agreeme

FS KKR Capital Corp. Announces First Quarter 2025 Results Declares Second Quarter 2025 Distribution of $0.70 per share

Exhibit 99.1 FS KKR Capital Corp. Announces First Quarter 2025 Results Declares Second Quarter 2025 Distribution of $0.70 per share PHILADELPHIA, PA AND NEW YORK, NY – May 7, 2025 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter ended March 31, 2025, and that its board of directors has declared a second quarter 2025 distributio

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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, 2025 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 N

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2025 ¨ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2025 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of reg

ARS

Fellow Stockholder, On behalf of my colleagues at FS Investments and our partners at KKR Credit, I hope this letter finds you well following a year of significant change in the global economy, financial markets, and political landscape.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

FSK Announces Earnings Release and Conference Call Schedule for First Quarter 2025

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for First Quarter 2025 PHILADELPHIA AND NEW YORK – April 10, 2025 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its first quarter 2025 results after the close of trading on the New York Stock Exchange on Wednesday, May 7, 2025. FSK will host its first quarter 2025 results conference call via live webcast

Financial Statements and Exhibits, Results of Operations and Financial Condition

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 10, 2025 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 Fil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of

Portfolio Management Agreement, dated as of March 28, 2025 among KKR – FSK CLO 2 LLC and FS KKR Capital Corp.

Exhibit 10.3 EXECUTION VERSION PORTFOLIO MANAGEMENT AGREEMENT dated as of March 28, 2025 between KKR – FSK CLO 2 LLC, Issuer and FS KKR CAPITAL CORP., Portfolio Manager Table of Contents Page 1. Definitions 2 2. General Duties of the Portfolio Manager 3 3. Brokerage 7 4. Additional Activities of the Portfolio Manager and its Affiliates 9 5. Conflicts of Interest 11 6. Records 12 7. Obligations of

Class A-1W Credit Agreement, dated as of March 28, 2025 among KKR – FSK CLO 2 LLC, the lenders party thereto and U.S. Bank Trust Company, National Association.

Exhibit 10.6 EXECUTION VERSION CLASS A-1W CREDIT AGREEMENT dated as of March 28, 2025 among KKR – FSK CLO 2 LLC as Borrower, the Lenders party hereto, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Loan Agent and as Collateral Trustee TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND INTERPRETATION Section 1.1 Defined Terms 1 Section 1.2 Use of Defined Terms 1 Section 1.3 Interpretation 2 Section

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): March 28, 2025 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 Fil

Class A-IL Credit Agreement, dated as of March 28, 2025 among KKR – FSK CLO 2 LLC, the lenders party thereto and U.S. Bank Trust Company, National Association.

Exhibit 10.4 EXECUTION VERSION CLASS A-1L CREDIT AGREEMENT dated as of March 28, 2025 among KKR - FSK CLO 2 LLC as Borrower, THE VARIOUS FINANCIAL INSTITUTIONS TIME TO TIME PARTY HERETO, as Lenders, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Loan Agent and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Collateral Trustee Table of Contents Page ARTICLE I DEFINITIONS AND INTERPRETATION 1 S

Indenture, dated as of March 28, 2025 by and between KKR – FSK CLO 2 LLC and U.S. Bank Trust Company, National Association.

Exhibit 10.1 EXECUTION VERSION KKR – FSK CLO 2 LLC Issuer U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION Collateral Trustee INDENTURE AND SECURITY AGREEMENT Dated as of March 28, 2025 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 2 Section 1.1. Definitions 2 Section 1.2. Assumptions as to Assets 80 ARTICLE II THE DEBT 85 Section 2.1. Forms Generally 85 Section 2.2. Forms of Notes 85 Section 2.3. Aut

Class A-2L Credit Agreement, dated as of March 28, 2025 among KKR – FSK CLO 2 LLC, the lenders party thereto and U.S. Bank Trust Company, National Association.

Exhibit 10.5 EXECUTION VERSION CLASS A-2L CREDIT AGREEMENT dated as of March 28, 2025 among KKR – FSK CLO 2 LLC, as Borrower, VARIOUS FINANCIAL INSTITUTIONS AND OTHER PERSONS, as Lenders, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Loan Agent and Collateral Trustee Table of Contents Page ARTICLE I DEFINITIONS AND INTERPRETATION 1 Section 1.1 Defined Terms 1 Section 1.2 Use of Defined Terms 1

Loan and Sale Agreement, dated as of March 28, 2025 among KKR – FSK CLO 2 LLC and FS KKR Capital Corp.

Exhibit 10.2 EXECUTION VERSION LOAN SALE AGREEMENT by and between KKR – FSK CLO 2 LLC, as the Purchaser and FS KKR CAPITAL CORP., as the Seller Dated as of March 28, 2025 Table of Contents Page ARTICLE I. DEFINITIONS 1 Section 1.1. General 1 Section 1.2. Specific Terms 2 Section 1.3. Other Terms 3 Section 1.4. Computation of Time Periods 4 ARTICLE II. SALE AND PURCHASE OF THE CONVEYED COLLATERAL 4

Eighth Amendment to the Loan and Servicing Agreement, dated March 27, 2025, by and among Meadowbrook Run LLC, FS KKR Capital Corp., Morgan Stanley Senior Funding, Inc. and Morgan Stanley Bank, N.A.

  Exhibit 10.1   EXECUTION VERSION   WAIVER AND eighTH AMENDMENT TO LOAN AND SERVICING AGREEMENT (this “Amendment”), dated as of March 27, 2025 (the “Amendment Date”), among Meadowbrook Run LLC, a Delaware limited liability company, as the borrower (the “Borrower”), FS KKR Capital Corp., a Maryland corporation, as the servicer (the “Servicer”), Morgan Stanley Bank, N.A., as the lender (the “Lender

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): March 27, 2025 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 Fil

Regulation FD Disclosure

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): February 28, 2025 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

FS KKR Capital Corp. Announces Fourth Quarter and Full Year 2024 Results Declares First Quarter 2025 Distribution of $0.70 per share

Exhibit 99.1 FS KKR Capital Corp. Announces Fourth Quarter and Full Year 2024 Results Declares First Quarter 2025 Distribution of $0.70 per share PHILADELPHIA, PA AND NEW YORK, NY – February 26, 2025 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter and year ended December 31, 2024, and that its board of directors has declared a

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): February 26, 2025 FS KKR Capital

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): February 26, 2025 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

Loan and Servicing Agreement, dated January 22, 2025, by and among Meadowbrook Run LLC, FS KKR Capital Corp., Morgan Stanley Senior Funding, Inc. and Morgan Stanley Bank, N.A.

EXECUTION VERSION SEVENTH AMENDMENT TO LOAN AND SERVICING AGREEMENT (this “Amendment”), dated as of January 22, 2025 (the “Amendment Date”), among Meadowbrook Run LLC, a Delaware limited liability company, as the borrower (the “Borrower”), FS KKR Capital Corp.

Subsidiaries of the Company.

Exhibit 21.1 Subsidiaries of FS KKR Capital Corp. Name of Subsidiary State of Incorporation or Organization CCT Dublin Funding Designated Activity Company Ireland CCT Holdings II LLC Delaware CCT Tokyo Funding LLC Delaware FCF LLC Delaware FS KKR MM CLO 1 LLC Delaware FSIC Investments, Inc. Delaware IC Altus Investments, LLC Delaware IC American Energy Investments, Inc. Delaware IC Arches Investme

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 ¨ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO COMMISSION FILE NUMBER: 814-00757 FS KKR

Audited Consolidated Financial Statements of Credit Opportunities Partners JV, LLC for the year ended December 31, 202

Credit Opportunities Partners JV, LLC and Subsidiaries Consolidated Financial Statements As of December 31, 2024 and 2023 and for the years ended December 31, 2024, 2023 and 2022 and Independent Auditor’s Report CREDIT OPPORTUNITIES PARTNERS JV, LLC Index December 31, 2024 Page Independent Auditor’s Report 1 Consolidated Financial Statements Consolidated Statements of Assets and Liabilities as of

rading Policy

Statement On the Prohibition of Insider Trading July 2024 This Statement on the Prohibition of Insider Trading applies to FS KKR Capital Corp.

Description of Securities.

Exhibit 4.33 DESCRIPTION OF SECURITIES As of December 31, 2024, FS KKR Capital Corp. (“we,” “our,” or the “Company”) had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $0.001 per share (“common stock”). Common Stock, par value $0.001 per share Our charter authorizes us to issue up to 800,000,0

Sixth Amendment to the Loan and Servicing Agreement, dated November 21, 2024, by and among Meadowbrook Run LLC, FS KKR Capital Corp., Morgan Stanley Senior Funding, Inc. and Morgan Stanley Bank, N.A.

EXECUTION VERSION SIXTH AMENDMENT TO LOAN AND SERVICING AGREEMENT (this “Amendment”), dated as of November 21, 2024 (the “Amendment Date”), among Meadowbrook Run LLC, a Delaware limited liability company, as the borrower (the “Borrower”), FS KKR Capital Corp.

Clawback Policy

FS KKR CAPITAL CORP. CLAWBACK POLICY The Board of Directors (the “Board”) of FS KKR Capital Corp., a Maryland corporation (the “Company”), believes that it is in the best interests of the Company and its shareholders to adopt this Clawback Policy (this “Policy”), which provides for the recovery of Incentive-Based Compensation received by Covered Executives, if any, in the event of an Accounting Re

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): February 3, 2025 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 F

FSK Announces Earnings Release and Conference Call Schedule for Fourth Quarter and Full Year 2024

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Fourth Quarter and Full Year 2024 PHILADELPHIA AND NEW YORK – January 23, 2025 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its fourth quarter and full year 2024 results after the close of trading on the New York Stock Exchange on Wednesday, February 26, 2025. FSK will host its fourth quarter and fu

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 23, 2025 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 F

FSK Completes Public Offering of $100 million 6.125% Unsecured Notes Due 2030

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Completes Public Offering of $100 million 6.125% Unsecured Notes Due 2030 PHILADELPHIA, PA and NEW YORK, NY – December 27, 2024 – FS KKR Capital Corp. (NYSE: FSK) today announced that it has completed its previously announced offering of an additional $100 million in aggregate principal amount of its 6.125% notes due 2030 (the “Notes”). The Notes will be a fu

Regulation FD Disclosure

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): December 27, 2024 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

FS KKR Capital Corp. 6.125% Notes due 2030 PRICING TERM SHEET December 20, 2024

Filed pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated December 20, 2024, Prospectus dated September 19, 2024 (Registration No.

Underwriting Agreement, dated December 20, 2024, by and among FS KKR Capital Corp., FS/KKR Advisor, LLC and BofA Securities, Inc., BMO Capital Markets Corp., J.P. Morgan Securities LLC, KKR Capital Markets LLC, SMBC Nikko Securities America, Inc. and Truist Securities, Inc., as representatives of the underwriters named in Schedule A thereto.

EX-1.1 2 d918146dex11.htm EX-1.1 Exhibit 1.1 FS KKR Capital Corp. $100,000,000 Aggregate Principal Amount 6.125% Notes due 2030 UNDERWRITING AGREEMENT December 20, 2024 BofA Securities, Inc. BMO Capital Markets Corp. J.P. Morgan Securities LLC KKR Capital Markets LLC SMBC Nikko Securities America, Inc. Truist Securities, Inc. As Representatives of the Underwriters named in Schedule A hereto c/o Bo

Current Report

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): December 20, 2024 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

Filed Pursuant to Rule 424(b)(2) File No. 333-282226 PROSPECTUS SUPPLEMENT To the Prospectus dated September 19, 2024 $100,000,000 6.125% Notes due 2030 We are offering for sale $100,000,000 in aggregate principal amount of 6.125% Notes due 2030, whi

Filed Pursuant to Rule 424(b)(2) File No. 333-282226 PROSPECTUS SUPPLEMENT To the Prospectus dated September 19, 2024 $100,000,000 6.125% Notes due 2030 We are offering for sale $100,000,000 in aggregate principal amount of 6.125% Notes due 2030, which we refer to as the Notes. The Notes will mature on January 15, 2030. We will pay interest on the Notes semi-annually in arrears on January 15 and J

Calculation of Filing Fee Tables (Form Type) FS KKR Capital Corp. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) FS KKR Capital Corp.

Regulation FD Disclosure

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): December 20, 2024 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

FSK Prices Public Offering of $100 million 6.125% Unsecured Notes Due 2030

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Prices Public Offering of $100 million 6.125% Unsecured Notes Due 2030 PHILADELPHIA, PA and NEW YORK, NY – December 20, 2024 – FS KKR Capital Corp. (NYSE: FSK) announced that it has priced an underwritten public offering of an additional $100 million in aggregate principal amount of its 6.125% notes due 2030 (the “Notes”) pursuant to a reopening of such Notes

SUBJECT TO COMPLETION, DATED DECEMBER 20, 2024

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-282226 The information in this preliminary prospectus supplement is not complete and may be changed. An effective registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these sec

FSK Completes Public Offering of $600 million 6.125% Unsecured Notes Due 2030

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Completes Public Offering of $600 million 6.125% Unsecured Notes Due 2030 PHILADELPHIA, PA and NEW YORK, NY – November 20, 2024 – FS KKR Capital Corp. (NYSE: FSK) today announced that it has completed its previously announced offering of $600 million in aggregate principal amount of its 6.125% unsecured notes due 2030 (the “Notes”). BofA Securities, Inc., BMO

Fourteenth Supplemental Indenture, dated as of November 20, 2024, relating to the 6.125% Notes due 2030, by and between the Company and U.S. Bank Trust Company National Association (as successor-in-interest to U.S. Bank National Association), as trustee.

Exhibit 4.1 EXECUTION VERSION FOURTEENTH SUPPLEMENTAL INDENTURE between FS KKR CAPITAL CORP. and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee Dated as of November 20, 2024 FOURTEENTH SUPPLEMENTAL INDENTURE THIS FOURTEENTH SUPPLEMENTAL INDENTURE, dated as of November 20, 2024, is between FS KKR Capital Corp., a Maryland corporation (the “Company”), and U.S. Bank Trust Company, National

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): November 20, 2024 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

Third Amendment to Loan and Security Agreement and First Amendment to Account Control Agreement, dated as of November 13, 2024, by the Ambler Funding, Ally Bank, as administrative agent and lender, and Wells Fargo Bank, N.A., as collateral administrator, collateral custodian and securities intermediary.

Exhibit 10.1 Execution Version THIRD AMENDMENT TO LOAN AND SECURITY AGREEMENT AND FIRST AMENDMENT TO ACCOUNT CONTROL AGREEMENT THIS THIRD AMENDMENT TO LOAN AND SECURITY AGREEMENT AND FIRST AMENDMENT TO ACCOUNT CONTROL AGREEMENT (this “Amendment”), dated as of November 13, 2024, is entered into by and among: (1)         AMBLER FUNDING LLC, a Delaware limited liability company, as the borrower (the

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): November 13, 2024 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

Filed Pursuant to Rule 424(b)(2) File No. 333-282226 PROSPECTUS SUPPLEMENT To the Prospectus dated September 19, 2024 $600,000,000 6.125% Notes due 2030 We are offering for sale $600,000,000 in aggregate principal amount of 6.125% Notes due 2030, whi

Filed Pursuant to Rule 424(b)(2) File No. 333-282226 PROSPECTUS SUPPLEMENT To the Prospectus dated September 19, 2024 $600,000,000 6.125% Notes due 2030 We are offering for sale $600,000,000 in aggregate principal amount of 6.125% Notes due 2030, which we refer to as the Notes. The Notes will mature on January 15, 2030. We will pay interest on the Notes semi-annually in arrears on January 15 and J

Calculation of Filing Fee Tables (Form Type) FS KKR Capital Corp. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) FS KKR Capital Corp.

Underwriting Agreement, dated November 13, 2024, by and among FS KKR Capital Corp., FS/KKR Advisor, LLC and BofA Securities, Inc., BMO Capital Markets Corp., J.P. Morgan Securities LLC, KKR Capital Markets LLC, SMBC Nikko Securities America, Inc. and Truist Securities, Inc., as representatives of the underwriters named in Schedule A thereto.

Exhibit 1.1 Execution Version FS KKR Capital Corp. $600,000,000 Aggregate Principal Amount 6.125% Notes due 2030 UNDERWRITING AGREEMENT November 13, 2024 BofA Securities, Inc. BMO Capital Markets Corp. J.P. Morgan Securities LLC KKR Capital Markets LLC SMBC Nikko Securities America, Inc. Truist Securities, Inc. As Representatives of the Underwriters named in Schedule A hereto c/o BofA Securities,

Current Report

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): November 13, 2024 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

Regulation FD Disclosure

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): November 13, 2024 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

FSK Prices Public Offering of $600 million 6.125% Unsecured Notes Due 2030

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Prices Public Offering of $600 million 6.125% Unsecured Notes Due 2030 PHILADELPHIA, PA and NEW YORK, NY – November 13, 2024 – FS KKR Capital Corp. (NYSE: FSK) announced that it has priced an underwritten public offering of $600 million in aggregate principal amount of its 6.125% unsecured notes due 2030 (the “Notes”). The Notes will mature on January 15, 203

FS KKR Capital Corp. 6.125% Notes due 2030 PRICING TERM SHEET November 13, 2024

Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated November 13, 2024, Prospectus dated September 19, 2024 (Registration No.

SUBJECT TO COMPLETION, DATED NOVEMBER 13, 2024

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-282226 The information in this preliminary prospectus supplement is not complete and may be changed. An effective registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these sec

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): November 12, 2024 FS KKR Capital

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): November 12, 2024 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

Current Report

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): November 6, 2024 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 F

FS KKR Capital Corp. Announces Third Quarter 2024 Results

Exhibit 99.1 FS KKR Capital Corp. Announces Third Quarter 2024 Results PHILADELPHIA, PA AND NEW YORK, NY – November 6th, 2024 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter ended September 30, 2024, and that its board of directors previously, on October 8, 2024, declared a fourth quarter 2024 distribution of $0.70 per share.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2024 ¨ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2024 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 9, 2024 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 Fi

FSK Announces Earnings Release and Conference Call Schedule for Third Quarter 2024; Declares Fourth Quarter 2024 Distribution of $0.70 per share

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Third Quarter 2024; Declares Fourth Quarter 2024 Distribution of $0.70 per share PHILADELPHIA AND NEW YORK – October 9, 2024 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its third quarter 2024 results after the close of trading on the New York Stock Exchange on Wednesday, November 6, 2024, and that

Consent of Deloitte & Touche LLP*

Exhibit (n)(3) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Registration Statement on Form N-2 of our reports dated February 26, 2024, relating to the financial statements and financial highlights of FS KKR Capital Corp.

Consent of Miles & Stockbridge P.C. (Incorporated by reference to Exhibit (l)(1) hereto.)

Exhibit (l)(1) September 19, 2024 FS KKR Capital Corp. 201 Rouse Boulevard Philadelphia, Pennsylvania 19112 Re: Registration Statement on Form N-2 Ladies and Gentlemen: We have acted as special Maryland counsel to FS KKR Capital Corp., a Maryland corporation (the “Company”) and a business development company under the Investment Company Act of 1940, as amended (the “1940 Act”), in connection with

Consent of Dechert LLP. (Incorporated by reference to Exhibit (l)(2) hereto.)

Exhibit (l)(2) Cira Center 2929 Arch Street Philadelphia, PA 19104-2808 +1 215 994 4000 Main +1 215 994 2222 Fax www.

Consent of RSM US LLP *

Exhibit (n)(4) Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in this Registration Statement on Form N-2 and related Prospectus of FS KKR Capital Corp.

Form T-1 Statement of Eligibility of Trustee.*

Exhibit (d)(6) SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S.

Filing Fees Table*

Exhi bi t (s) EX. FILING FEES Calculation of Filing Fee Tables Form N-2 (Form Type) FS KKR Capital Corp. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Ca

As filed with the Securities and Exchange Commission on September 19, 2024 Securities Act File No. 333 -    UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form N-2 ☒ Registration Statement under the Securities Act of 1933 ☐ P

As filed with the Securities and Exchange Commission on September 19, 2024 Securities Act File No.

Submission of Matters to a Vote of Security Holders

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): August 16, 2024 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 Fi

Regulation FD Disclosure

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): August 12, 2024 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 Fi

Current Report

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): August 6, 2024 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 Fil

Fourth Amendment to Second Amended and Restated Senior Secured Revolving Credit Agreement, dated as of June 26, 2024, by and between the Company and JPMorgan Chase Bank, N.A.

Execution Version AMENDMENT NO. 4 THIS AMENDMENT NO. 4, dated as of June 26, 2024 (the “ Signing Date”) (this “Amendment”), to Credit Agreement (capitalized terms used herein and not otherwise defined shall have the meanings given to such terms in the Credit Agreement (as defined below)) is among FS KKR CAPITAL CORP., a Maryland corporation (the “Borrower”) and JPMORGAN CHASE BANK, N.A., as admini

Thirteenth Amendment to the Loan and Servicing Agreement, dated as of June 27, 2024, by and between Darby Creek LLC and Deutsche Bank AG, New York Branch.

EXECUTION VERSION THIRTEENTH AMENDMENT TO THE LOAN FINANCING AND SERVICING AGREEMENT, dated as of June 27, 2024 (this “Amendment”), among Darby Creek LLC, a Delaware limited liability company (the “Borrower”), Deutsche Bank AG, New York Branch, as facility agent (the “Facility Agent”) and each Lender party hereto (each, a “Lender”, and collectively, the “Lenders”).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2024 ¨ TRANSITION REPORT PURSUANT TO S

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2024 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of regi

FS KKR Capital Corp. Announces Second Quarter 2024 Results Declares Third Quarter 2024 Distribution of $0.70 per share

Exhibit 99.1 FS KKR Capital Corp. Announces Second Quarter 2024 Results Declares Third Quarter 2024 Distribution of $0.70 per share PHILADELPHIA, PA AND NEW YORK, NY – August 6th, 2024 – FS KKR Capital Corp. (NYSE: FSK), or the Company, today announced its financial and operating results for the quarter ended June 30, 2024, and that its board of directors has declared a third quarter 2024 distribu

Financial Statements and Exhibits, Results of Operations and Financial Condition

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 15, 2024 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

FSK Announces Earnings Release and Conference Call Schedule for Second Quarter 2024

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Second Quarter 2024 PHILADELPHIA AND NEW YORK – July [15], 2024 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its second quarter 2024 results after the close of trading on the New York Stock Exchange on Tuesday, August 6, 2024. FSK will host a conference call at 9:00 a.m. (Eastern Time) on Wednesday,

Submission of Matters to a Vote of Security Holders

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): June 21, 2024 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

FSK Completes Public Offering of $600 million 6.875% Unsecured Notes Due 2029

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Completes Public Offering of $600 million 6.875% Unsecured Notes Due 2029 PHILADELPHIA, PA and NEW YORK, NY – FS KKR Capital Corp. (NYSE: FSK) today announced that it has completed its previously announced offering of $600 million in aggregate principal amount of its 6.875% unsecured notes due 2029 (the “Notes”). BofA Securities, Inc., BMO Capital Markets Cor

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): June 6, 2024 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

Thirteenth Supplemental Indenture, dated as of June 6, 2024, relating to the 6.875% Notes due 2029, by and between the Company and U.S. Bank Trust Company National Association (as successor-in-interest to U.S. Bank National Association), as trustee.

Exhibit 4.1 EXECUTION VERSION THIRTEENTH SUPPLEMENTAL INDENTURE between FS KKR CAPITAL CORP. and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee Dated as of June 6, 2024 THIRTEENTH SUPPLEMENTAL INDENTURE THIS THIRTEENTH SUPPLEMENTAL INDENTURE, dated as of June 6, 2024, is between FS KKR Capital Corp., a Maryland corporation (the “Company”), and U.S. Bank Trust Company, National Associati

Filed Pursuant to Rule 424(b)(2) File No. 333-260000 PROSPECTUS SUPPLEMENT To the Prospectus dated October 4, 2021 $600,000,000 6.875% Notes due 2029 We are offering for sale $600,000,000 in aggregate principal amount of 6.875% Notes due 2029, which

Filed Pursuant to Rule 424(b)(2) File No. 333-260000 PROSPECTUS SUPPLEMENT To the Prospectus dated October 4, 2021 $600,000,000 6.875% Notes due 2029 We are offering for sale $600,000,000 in aggregate principal amount of 6.875% Notes due 2029, which we refer to as the Notes. The Notes will mature on August 15, 2029. We will pay interest on the Notes semi-annually in arrears on February 15 and Augu

Calculation of Filing Fee Tables (Form Type) FS KKR Capital Corp. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule A

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) FS KKR Capital Corp.

Current Report

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 30, 2024 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

Underwriting Agreement, dated May 30, 2024, by and among FS KKR Capital Corp., FS/KKR Advisor, LLC and BofA Securities, Inc., BMO Capital Markets Corp., J.P. Morgan Securities LLC, KKR Capital Markets LLC, SMBC Nikko Securities America, Inc. and Truist Securities, Inc., as representatives of the underwriters named in Schedule A thereto.

Exhibit 1.1 FS KKR Capital Corp. $600,000,000 Aggregate Principal Amount 6.875% Notes due 2029 UNDERWRITING AGREEMENT May 30, 2024 BofA Securities, Inc. BMO Capital Markets Corp. J.P. Morgan Securities LLC KKR Capital Markets LLC SMBC Nikko Securities America, Inc. Truist Securities, Inc. As Representatives of the Underwriters named in Schedule A hereto c/o BofA Securities, Inc.   One Bryant Park

FSK Prices Public Offering of $600 million 6.875% Unsecured Notes Due 2029

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Prices Public Offering of $600 million 6.875% Unsecured Notes Due 2029 PHILADELPHIA, PA and NEW YORK, NY – May 31, 2024 – FS KKR Capital Corp. (NYSE: FSK) announced that it has priced an underwritten public offering of $600 million in aggregate principal amount of its 6.875% unsecured notes due 2029 (the “Notes”). The Notes will mature on August 15, 2029 and

Regulation FD Disclosure

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 31, 2024 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

FS KKR Capital Corp. 6.875% Notes due 2029 PRICING TERM SHEET May 30, 2024

Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated May 30, 2024, Prospectus dated October 4, 2021 (Registration No.

SUBJECT TO COMPLETION, DATED MAY 30, 2024

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-260000 The information in this preliminary prospectus supplement is not complete and may be changed. An effective registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these sec

Regulation FD Disclosure

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 14, 2024 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2024 ¨ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2024 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of reg

Current Report

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 8, 2024 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 N

FS KKR Capital Corp. Announces First Quarter 2024 Results Declares Second Quarter 2024 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total Second Quarter

Exhibit 99.1 FS KKR Capital Corp. Announces First Quarter 2024 Results Declares Second Quarter 2024 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total Second Quarter Distribution of $0.75 per share PHILADELPHIA, PA AND NEW YORK, NY – May 8h, 2024 – FS KKR Capital Corp. (NYSE: FSK), or the Company, tod

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

Financial Statements and Exhibits, Results of Operations and Financial Condition

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 16, 2024 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 Fil

FSK Announces Earnings Release and Conference Call Schedule for First Quarter 2024

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for First Quarter 2024 PHILADELPHIA AND NEW YORK – April 16, 2024 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its first quarter 2024 results after the close of trading on the New York Stock Exchange on Wednesday, May 8, 2024. FSK will host a conference call at 9:00 a.m. (Eastern Time) on Thursday, May

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

PRE 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, fo

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): February 28, 2024 FS KKR Capital

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): February 28, 2024 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

Subsidiaries of the Company.

Exhibit 21.1 Subsidiaries of FS KKR Capital Corp. Name of Subsidiary State of Incorporation or Organization CT Dublin Funding Designated Activity Company Ireland CCT Holdings II LLC Delaware CCT Tokyo Funding LLC Delaware FCF LLC Delaware FS KKR MM CLO 1 LLC Delaware FSIC Investments, Inc. Delaware IC Altus Investments, LLC Delaware IC American Energy Investments, Inc. Delaware IC Arches Investmen

Clawback Policy

FS KKR CAPITAL CORP. CLAWBACK POLICY The Board of Directors (the “Board”) of FS KKR Capital Corp., a Maryland corporation (the “Company”), believes that it is in the best interests of the Company and its shareholders to adopt this Clawback Policy (this “Policy”), which provides for the recovery of Incentive-Based Compensation received by Covered Executives, if any, in the event of an Accounting Re

Description of Securities.

Exhibit [4.27] DESCRIPTION OF SECURITIES As of December 31, 2023, FS KKR Capital Corp. (“we,” “our,” or the “Company”) had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $0.001 per share (“common stock”). Common Stock, par value $0.001 per share Our charter authorizes us to issue up to 800,000

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 ¨ TRANSITION REPORT PURSUANT TO SECTI

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO COMMISSION FILE NUMBER: 814-00757 FS KKR

FS KKR Capital Corp. Announces Fourth Quarter and Full Year 2023 Results Declares First Quarter 2024 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total

Exhibit 99.1 FS KKR Capital Corp. Announces Fourth Quarter and Full Year 2023 Results Declares First Quarter 2024 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total First Quarter Distribution of $0.75 per share PHILADELPHIA, PA AND NEW YORK, NY – February 26th, 2024 – FS KKR Capital Corp. (NYSE: FSK),

Audited Consolidated Financial Statements of Credit Opportunities Partners JV, LLC for the year ended December 31, 2023

Credit Opportunities Partners JV, LLC and Subsidiaries Consolidated Financial Statements As of December 31, 2023 and 2022 and for the years then ended and Independent Auditor’s Report CREDIT OPPORTUNITIES PARTNERS JV, LLC Index December 31, 2023 Page Independent Auditor’s Report 1 Consolidated Financial Statements as of December 31, 2023 and 2022 and for the years then ended Consolidated Statement

Current Report

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): February 26, 2024 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

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 24, 2024 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 F

FSK Announces Earnings Release and Conference Call Schedule for Fourth Quarter and Full Year 2023

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Fourth Quarter and Full Year 2023 PHILADELPHIA AND NEW YORK – January 24, 2024 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its fourth quarter and full year 2023 results after the close of trading on the New York Stock Exchange on Monday, February 26, 2024. FSK will host a conference call at 9:00 a.

FSK / FS KKR Capital Corp / KKR Credit Advisors (US) LLC - SC 13D/A Activist Investment

SC 13D/A 1 ef20015135sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* FS KKR Capital Corp. (Name of Issuer) Common stock, $0.001 par value (Title of Class of Securities) 302635206 (CUSIP Number) Noah Greenhill, Esq. KKR Credit Advisors (US) LLC 30 Hudson Yards New York, NY 10001 (21

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): November 21, 2023 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

FSK Completes Public Offering of $400 million 7.875% Unsecured Notes Due 2029

Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Completes Public Offering of $400 million 7.875% Unsecured Notes Due 2029 PHILADELPHIA and NEW YORK, November 21, 2023 – FS KKR Capital Corp. (NYSE: FSK) today announced that it has completed its previously announced offering of $400 million in aggregate principal amount of its 7.875% unsecured notes due 2029 (the “Notes”). BofA Securities, Inc., BMO Capital

Twelfth Supplemental Indenture, dated as of November 21, 2023, relating to the 7.875% Notes due 2029, by and between the Company and U.S. Bank Trust Company, National Association (as successor-in-interest to U.S. Bank National Association), as trustee.

Exhibit 4.1 TWELFTH SUPPLEMENTAL INDENTURE between FS KKR CAPITAL CORP. and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee Dated as of November 21, 2023 TWELFTH SUPPLEMENTAL INDENTURE THIS TWELFTH SUPPLEMENTAL INDENTURE (this “Twelfth Supplemental Indenture”), dated as of November 21, 2023, is between FS KKR Capital Corp., a Maryland corporation (the “Company”), and U.S. Bank Trust Comp

Calculation of Filing Fee Tables (Form Type) FS KKR Capital Corp. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule A

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) FS KKR Capital Corp.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): November 13, 2023 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

Filed Pursuant to Rule 424(b)(2) File No. 333-260000 PROSPECTUS SUPPLEMENT To the Prospectus dated October 4, 2021 $400,000,000 7.875% Notes due 2029 We are offering for sale $400,000,000 in aggregate principal amount of 7.875% Notes due 2029, which

Filed Pursuant to Rule 424(b)(2) File No. 333-260000 PROSPECTUS SUPPLEMENT To the Prospectus dated October 4, 2021 $400,000,000 7.875% Notes due 2029 We are offering for sale $400,000,000 in aggregate principal amount of 7.875% Notes due 2029, which we refer to as the Notes. The Notes will mature on January 15, 2029. We will pay interest on the Notes semi-annually in arrears on January 15 and July

Underwriting Agreement, dated November 13, 2023, by and among FS KKR Capital Corp., FS/KKR Advisor, LLC and BofA Securities, Inc., BMO Capital Markets Corp., J.P. Morgan Securities LLC, KKR Capital Markets LLC, SMBC Nikko Securities America, Inc. and Truist Securities, Inc., as representatives of the underwriters named in Schedule A thereto.

Exhibit 1.1 FS KKR Capital Corp. $400,000,000 Aggregate Principal Amount 7.875% Notes due 2029 UNDERWRITING AGREEMENT November 13, 2023 BofA Securities, Inc. BMO Capital Markets Corp. J.P. Morgan Securities LLC KKR Capital Markets LLC SMBC Nikko Securities America, Inc. Truist Securities, Inc. As Representatives of the Underwriters named in Schedule A hereto c/o BofA Securities, Inc. One Bryant Pa

FSK Prices Public Offering of $400 million 7.875% Unsecured Notes Due 2029

EX-99.1 Exhibit 99.1 FOR IMMEDIATE RELEASE FSK Prices Public Offering of $400 million 7.875% Unsecured Notes Due 2029 PHILADELPHIA and NEW YORK, November 13, 2023 – FS KKR Capital Corp. (NYSE: FSK) announced that it has priced an underwritten public offering of $400 million in aggregate principal amount of its 7.875% unsecured notes due 2029 (the “Notes”). The Notes will mature on January 15, 2029

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): November 13, 2023 FS KKR Capital

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): November 13, 2023 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

FS KKR Capital Corp. 7.875% Notes due 2029 PRICING TERM SHEET November 13, 2023

Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated November 13, 2023, Prospectus dated October 4, 2021 (Registration No.

SUBJECT TO COMPLETION, DATED NOVEMBER 13, 2023

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-260000 The information in this preliminary prospectus supplement is not complete and may be changed. An effective registration statement relating to these securities has been filed with the U.S. Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these sec

Regulation FD Disclosure

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): November 7, 2023 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 F

FS KKR Capital Corp. Announces Third Quarter 2023 Results Declares Fourth Quarter 2023 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total Fourth Quarter

Exhibit 99.1 FS KKR Capital Corp. Announces Third Quarter 2023 Results Declares Fourth Quarter 2023 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total Fourth Quarter Distribution of $0.75 per share; Declares Additional Special Distributions Totaling $0.10 per share to be paid in 2024 PHILADELPHIA, PA

Amendment No. 3, to Second Amended and Restated Senior Secured Revolving Credit Agreement, dated as of October 31, 2023, by and among FS KKR Capital Corp., as borrower, JPMorgan Chase Bank, N.A., as administrative agent, ING Capital LLC, as collateral agent, and the lenders party thereto.

AMENDMENT NO. 3 THIS AMENDMENT NO. 3, dated as of October 31, 2023 (this “Amendment”), to Credit Agreement (capitalized terms used herein and not otherwise defined shall have the meanings given to such terms in the Credit Agreement (as defined below)) is among FS KKR CAPITAL CORP., a Maryland corporation (including as successor by merger of FSK Capital Corp. II, the “Borrower”) and JPMorgan chase

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2023 ¨ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2023 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of

Second Amendment to Loan and Security Agreement, dated as of October 31, 2023, by and among Ambler Funding, as borrower, Ally Bank, as administrative agent and arranger, each of the lenders from time to time party thereto, and Wells Fargo Bank, National Association, as collateral administrator and collateral custodian.

SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT THIS SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT (this “Amendment”), dated as of October 31, 2023, is entered into by and among: a.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): November 6, 2023 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 F

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 10, 2023 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 F

FSK Announces Earnings Release and Conference Call Schedule for Third Quarter 2023

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Third Quarter 2023 PHILADELPHIA AND NEW YORK – October 10, 2023 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its third quarter 2023 results after the close of trading on the New York Stock Exchange on Monday, November 6, 2023. FSK will host a conference call at 9:00 a.m. (Eastern Time) on Tuesday, N

Exhibit F

EX-99.F 2 ef20011994ex99-f.htm EXHIBIT 99.F Exhibit F 10b5-1 SALE PLAN AGREEMENT August 28, 2023 KKR FSK Aggregator (UNLEV) L.P. KKR FSK II Aggregator (UNLEV) L.P. 30 Hudson Yards, Suite 7500 New York, NY 10001 This letter agreement (this “Letter Agreement”) confirms the terms and conditions under which KKR FSK Aggregator (UNLEV) L.P., and KKR FSK II Aggregator (UNLEV) L.P., each a limited partner

FSK / FS KKR Capital Corp / KKR Credit Advisors (US) LLC - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* FS KKR Capital Corp. (Name of Issuer) Common stock, $0.001 par value (Title of Class of Securities) 302635206 (CUSIP Number) Noah Greenhill, Esq. KKR Credit Advisors (US) LLC 30 Hudson Yards New York, NY 10001 (212) 750-8300 (Name, Address and Telephone

Regulation FD Disclosure

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): August 28, 2023 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 Fi

Submission of Matters to a Vote of Security Holders

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): August 22, 2023 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 Fi

Regulation FD Disclosure

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): August 16, 2023 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 Fi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2023 ¨ TRANSITION REPORT PURSUANT TO S

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2023 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of regi

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): August 7, 2023 FS KKR Capital Cor

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): August 7, 2023 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 Fil

(Incorporated by reference to Exhibit 10.3 to the Company's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2023 filed on August 7, 2023).

EXECUTION VERSION FIRST SUPPLEMENTAL INDENTURE dated as of June 28, 2023 among FS KKR MM CLO 1 LLC as Issuer and U.

FS KKR Capital Corp. Announces Second Quarter 2023 Results Declares Third Quarter 2023 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total Third Quarter

EX-99.1 Exhibit 99.1 FS KKR Capital Corp. Announces Second Quarter 2023 Results Declares Third Quarter 2023 Distribution of $0.70 per share, Which When Combined with the Company’s Previously Declared $0.05 per share Special Distribution, Results in a Total Third Quarter Distribution of $0.75 per share PHILADELPHIA, PA AND NEW YORK, NY – August 7th, 2023 – FS KKR Capital Corp. (NYSE: FSK), today an

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 12, 2023 FS KKR Capital Corp

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 12, 2023 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

FSK Announces Earnings Release and Conference Call Schedule for Second Quarter 2023

Exhibit 99.1 FSK Announces Earnings Release and Conference Call Schedule for Second Quarter 2023 PHILADELPHIA AND NEW YORK – July 12, 2023 – FS KKR Capital Corp. (NYSE: FSK) announced today plans to release its second quarter 2023 results after the close of trading on the New York Stock Exchange on Monday, August 7, 2023. FSK will host a conference call at 9:00 a.m. (Eastern Time) on Tuesday, Augu

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): June 30, 2023 FS KKR CAPITAL CORP

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): June 30, 2023 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

Fifth Amendment to the Loan and Servicing Agreement, dated June 30, 2023, by and among Meadowbrook Run LLC, FS KKR Capital Corp., Morgan Stanley Senior Funding, Inc. and Morgan Stanley Bank, N.A.

Exhibit 10.1 EXECUTION VERSION FIFTH AMENDMENT TO LOAN AND SERVICING AGREEMENT (this “Amendment”), dated as of June 30, 2023 (the “Amendment Date”), among Meadowbrook Run LLC, a Delaware limited liability company, as the borrower (the “Borrower”), FS KKR Capital Corp., a Maryland corporation, as the servicer (the “Servicer”), Morgan Stanley Bank, N.A., as the lender (the “Lender”), and Morgan Stan

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): June 23, 2023 FS KKR Capital Corp

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): June 23, 2023 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

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 15, 2023 FS KKR Capital Corp.

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 15, 2023 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

FS KKR Capital Corp. Announces First Quarter 2023 Results Declares Second Quarter 2023 Distribution of $0.70 per share Declares Special Distributions Totaling $0.15 per share to Be Paid in Three Equal Installments of $0.05 per share in Each of the Ne

EX-99.1 Exhibit 99.1 FS KKR Capital Corp. Announces First Quarter 2023 Results Declares Second Quarter 2023 Distribution of $0.70 per share Declares Special Distributions Totaling $0.15 per share to Be Paid in Three Equal Installments of $0.05 per share in Each of the Next Three Quarters PHILADELPHIA, PA AND NEW YORK, NY – May 5, 2023 – FS KKR Capital Corp. (NYSE: FSK), today announced its financi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2023 ¨ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2023 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER: 814-00757 FS KKR Capital Corp. (Exact name of reg

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 5, 2023 FS KKR Capital Corp.

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 5, 2023 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 N

Twelfth Amendment to the Loan Financing and Servicing Agreement and Omnibus Amendment to the Transaction Documents, dated April 27, 2023 by and among Darby Creek LLC, Deutsche Bank AG, New York Branch, and Wells Fargo Bank, National Association.

Exhibit 10.1 EXECUTION VERSION TWELFTH AMENDMENT TO THE LOAN FINANCING AND SERVICING AGREEMENT AND OMNIBUS AMENDMENT TO THE TRANSACTION DOCUMENTS, dated as of April 27, 2023 (this “Amendment”), among Darby Creek LLC, a Delaware limited liability company (the “Borrower”), Deutsche Bank AG, New York Branch, as facility agent (the “Facility Agent”), Wells Fargo Bank, National Association, as collater

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 27, 2023 FS KKR CAPITAL COR

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 27, 2023 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 Fil