New Mountain Finance Corporation

Item 5.07 Submission of Matters to a Vote of Security Holders. New Mountain Finance Corporation (“NMFC”) held its 2026 Annual Meeting of Stockholders on May 12, 2026 (the “Annual Meeting”) and submitted two (2) matters to the vote of stockholders. Stockholders of record as of March 13, 2026 (the "Record Date") were entitled to vote at the Annual Meeting. As of the Record Date, there were 98,509,563 shares of common stock outstanding and entitled to vote. A summary of the matters voted upon by the stockholders is set forth below. Election of Directors: Stockholders of NMFC elected three nominees for director, each to serve for a three-year term to expire at the 2029 Annual Meeting of Stockholders based on the following votes: Name FOR WITHHELD BROKER NON-VOTES ─────────────────────────────────────────────────────────────────────────── Rome G. Arnold III 31,775,941 8,216,335 33,707,302 Daniel B. Hébert 38,469,408 1,522,868 33,707,302 Steven B. Klinsky 33,307,243 6,685,033 33,707,302 Ratification of the Appointment of Deloitte & Touche LLP to serve as NMFC’s independent registered public accounting firm for the fiscal year ending December 31, 2026: Stockholders of NMFC ratified the appointment of Deloitte & Touche LLP to serve as NMFC’s independent registered public accounting firm for the fiscal year ending December 31, 2026 based on the following votes: FOR AGAINST ABSTAINED BROKER NON-VOTES ────────────────────────────────────────────────────────────────── 71,984,085 1,201,914 513,579 -0-