ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT PENNANTPARK FLOATING RATE CAPITAL LTD.(Exact name of registrant as specified in its charter) 1691 Michigan AvenueMiami Beach,Florida(Address of principal executive offices) (786)297-9500(Registrant’s Telephone Number, Including Area Code) Securities registered pursuant to Section 12(b) of the Act: Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes¨Nox. Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during thepreceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.YesxNo¨. Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes xNo¨. Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerginggrowth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of theExchange Act. 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 revisedfinancial accounting standards provided pursuant to Section 13(a) of the Exchange Act.¨ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control overfinancial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.x If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect thecorrection of an error to previously issued financial statements.¨ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of theregistrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).¨ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes¨Nox. The aggregate market value of common stock held by non-affiliates of the Registrant on March 31, 2025 based on the closing price on that date of $11.19 on The NewYork Stock Exchange was approximately$1,069.5million. For the purposes of calculating the aggregate market value of common stock held by non-affiliates, all directors andexecutive officers of the Registrant have been treated as affiliates. There were99,217,896shares of the Registrant’s common stock outstanding as of November 24, 2025. Documents Incorporated by Reference: Portions of the Registrant’s Proxy Statement relating to the Registrant’s2026Annual Meeting of Stockholders to be filed notlater than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K are incorporated by reference into Part III of this Report. TABLE OF CONTENTS Item 1BusinessItem 1A.Risk FactorsItem 1B.Unresolved Staff CommentsItem 1C.CybersecurityItem 2.PropertiesItem 3.Legal ProceedingsItem 4.Mine Safety Disclosures PART II Item 5.Market For Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity SecuritiesItem 6.Selected Financial DataItem 7.Management’s Discussion and Analysis of Financial Condition and Results of OperationsItem 7A.Quantitative and Qualitative Disclosures About Market RiskItem 8.Consolidated Financial Statements and Supplementary DataItem 9.Changes in and Disagreements with Accountants on Accounting and Financial DisclosureItem 9A.Controls and ProceduresItem 9B.Other InformationItem 9C.Disclosure Regarding Foreign Jurisdiction that Prevent Inspections PART III Item 10.Directors, Executive Officers and Corporate Governance116Item 11.Executive Compensation116Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters116Item 13.Certain Relationships and Related Transactions, and Director Independence116Item 14.Principal Accountant Fees and Services116 PART IV Item 15.Exhibits and Financial Statement SchedulesSignatures PARTI In this annual report on Form 10-K, or the Report, except where the context suggests otherwise, the terms “Company,” “we,” “our” or “us” refer to PennantParkFloating