Item 1.01. Entry into a Material Definitive Agreement. Amendment to NMFC Credit Facility New Mountain Finance Corporation (the “Company”) previously entered into the Amended and Restated Senior Secured Revolving Credit Agreement, dated as of June 4, 2021 (together with the exhibits and schedules thereto, and as amended from time to the time, the“ Revolving Credit Agreement”), by and among the Company, as the borrower, Goldman Sachs Bank, USA, as the administrative agent and syndication agent, and the lenders party thereto.

Item 1.02 Termination of a Material Definitive Agreement Termination of DB Credit Facility On September 30, 2024, the Company terminated in full the Loan Financing and Servicing Agreement, dated as of December 14, 2018 (as amended from time to time, the “ Loan Financing and Servicing Agreement”, and the credit facility thereunder the “DB Credit Facility”) by and among New Mountain Finance DB, L. L. C., as borrower, the Company, as servicer and as equityholder, Deutsche Bank AG, New York Branch, as the facility agent and as a committed lender (the “Lenders”), U. S. Bank Trust Company, National Association, as the collateral agent, and U. S. Bank National Association, as the collateral custodian. In connection with the termination of the DB Credit Facility, the Company also terminated the security interest over the collateral granted to the Lenders pursuant to the Loan Financing and Servicing Agreement and the other Transaction Documents (as defined in the Loan Financing and Servicing Agreement).

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The disclosure set forth above under Item 1.01 is incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits. d) Exhibits. Exhibit Description Number ───────────────────────────────────────────────────────────────────────────────────────────── 104 Cover Page Interactive Data File (embedded within the Inline XBRL document). SIGNATURE