UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

~~Pursuant~~PURSUANT toTO ~~Section~~ SECTION 13 OR 15(d) ~~of the~~

~~Securities~~OF ~~Exchange~~THE ~~Act~~SECURITIES ofEXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 15 31, 2025

Carlyle Secured Lending, Inc.

(Exact ~~name~~Name of ~~registrant~~Registrant as ~~specified~~Specified in ~~its charter~~Charter)

Maryland

No. 814-00995

80-0789789

~~814-00995~~

~~80-0789789~~

(State or Other Jurisdictionof Incorporation)

(CommissionFile Number)

(IRS EmployerIdentification No.)

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

One Vanderbilt Avenue, Suite 3400

New York

10017

(Address of Principal Executive Offices)

(Zip Code)

(212) 813-4900

One Vanderbilt Avenue, Suite 3400

New York, New York

10017

(Address of Principal Executive offices)

(Zip Code)

(Registrant’s ~~Telephone~~telephone ~~Number~~number, ~~Including~~including ~~Area~~area ~~Code~~code: (212) 813-4900

~~Not~~(Former ~~Applicable~~name or former address, if changed since last report.)

~~(Former~~Check ~~Name~~the orappropriate ~~Former~~box ~~Address,~~below if ~~Changed~~the ~~Since~~Form ~~Last~~8-K ~~Report~~filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2.):

~~Check~~☐ ~~the~~Written ~~appropriate~~communications ~~box~~pursuant ~~below if the Form 8-K filing is intended~~ to ~~simultaneously~~Rule ~~satisfy~~425 ~~the filing obligation of the registrant~~ under ~~any of~~ the ~~following~~Securities ~~provisions~~Act (~~see~~17 ~~General~~CFR ~~Instruction A~~230.~~2. below~~425):

☐ ~~Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐~~ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Title of each class:	Trading Symbol(s)		Name of each exchange on which registered:
Common Stock		CGBD		The Nasdaq Global Select Market
Common stock, $0.01 per share	CGBD		The Nasdaq Global Select Market
8.20% Notes due 2028		CGBDL		The Nasdaq Global Select Market
8.20% notes due 2028	CGBDL		The Nasdaq Global Select Market

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

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01 – Regulation FD Disclosure

On October 1531, 2025, Carlyle Secured Lending, Inc. (the “Company”) issued a press release announcing ~~that~~its itintent ~~will~~to ~~host~~redeem aits ~~conference~~outstanding ~~call at 11:00 a~~8.m.20% ~~(Eastern~~Notes ~~Time)~~due on2028 ~~Wednesday, November 5, 2025 to announce its financial results for~~ (the ~~third~~“2028 ~~quarter ended September 30, 2025~~Notes”). A copy of the press release is attached hereto as Exhibit 99.1.

The information disclosed under this Item 7.01, including Exhibit 99.1 hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of Securities Exchange Act of 1934, and shall not be deemed incorporated by reference into any filing made under the Securities Act 1933, except as expressly set forth by specific reference in such filing.

Item 8.01 Other Events.

On October 31, 2025, the Company announced that it will redeem 100% (or $85,000,000 aggregate principal amount) of the 2028 Notes on December 1, 2025 (the “Redemption Date”). The redemption price for the 2028 Notes will equal 100% of the $85,000,000 aggregate principal amount of the 2028 Notes being redeemed, plus accrued and unpaid interest otherwise payable for the then-current quarterly interest period accrued to, but excluding, the Redemption Date. In connection with the redemption, the 2028 Notes will be delisted from the Nasdaq Global Select Market.

Item 9.01 – Financial Statements and Exhibits

(d) Exhibits:

Exhibit Number	Description	~~Description~~
99.1	Press Release, dated October 31, 2025	~~Press Release, dated October 15, 2025~~
104	Cover Page Interactive Data File (embedded within the Inline XBRL document).	~~Cover Page Interactive Data File (embedded within the Inline XBRL document).~~

~~SIGNATURES~~SIGNATURE

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

CARLYLE SECURED LENDING, INC.

(Registrant)

Dated: October 15, 2025

By:

/s/ Thomas M. Hennigan

Name: Thomas M. Hennigan

Title: Chief Financial Officer


CARLYLE SECURED LENDING, INC.

By:		/s/ Nelson Joseph
Name:		Nelson Joseph
Title:		Chief Accounting Officer

Date: October 31, 2025

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