X0508 4 2026-03-05 0 0001496099 New Mountain Finance Corp NMFC 0001018327 KLINSKY STEVEN B C/O NEW MOUNTAIN CAPITAL, L.L.C. 1633 BROADWAY, 48TH FLOOR NEW YORK NY 10019 1 0 1 0 0 Common Stock 116823.91 D Common Stock 2026-03-05 4 P 0 79291 8.10 A 1298444.00 I See Note Common Stock 1020267.00 I See Note Common Stock 11191.00 I See Note Common Stock 11175.00 I See Note Common Stock 11175.00 I See Note Common Stock 11175.00 I See Note Common Stock 2026-03-05 4 P 0 158582 8.10 A 5037524.00 I See Note Common Stock 3457379.00 I See Note Common Stock 855000.00 I See Note Includes shares previously acquired under the New Mountain Finance Corporation dividend reinvestment plan. The Steven B. Klinsky 2008 Long Term Trust directly owns these shares. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. The Steven B. Klinsky Non-GST Exempt Trust directly owns these shares. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Includes (i) 16 shares held directly and (ii) 11,175 shares held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Shares are held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Shares are held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Shares are held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. The Steven B. Klinsky 2024 Revocable Trust ("2024 Trust 1") directly owns these shares. The reporting person disclaims beneficial ownership held by 2024 Trust 1 except to the extent of his pecuniary interest therein. The Steven B. Klinsky 2024 Revocable Trust ("2024 Trust 2") directly owns these shares. The reporting person disclaims beneficial ownership held by 2024 Trust 2 except to the extent of his pecuniary interest therein. The Steven B. Klinsky 2024 Revocable Trust ("2024 Trust 3") directly owns these shares. The reporting person disclaims beneficial ownership held by 2024 Trust 3 except to the extent of his pecuniary interest therein. Steven B. Klinsky 2026-03-06