X0203 3 2011-05-19 0 0001496099 New Mountain Finance Corp NMFC 0001018327 KLINSKY STEVEN B C/O NEW MOUNTAIN CAPITAL, L.L.C. 787 7TH AVENUE, 48TH FLOOR NEW YORK NY 10019 1 0 1 0 Common Stock 1252964 I See Note Common Membership Units 0 Common Stock 20221938 I See Note New Mountain Guardian Partners, L.P. ("Guardian Partners") directly owns 1,252,964 shares of common stock of New Mountain Finance Corporation. New Mountain Guardian GP, L.L.C. is the general partner of Guardian Partners and New Mountain Guardian Advisers, L.L.C. is the investment adviser to Guardian Partners. The reporting person is the sole owner of New Mountain Guardian GP, L.L.C. and the managing member of New Mountain Guardian Advisers, L.L.C.'s managing member, and may be deemed to beneficially own these shares. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. New Mountain Finance AIV Holdings Corporation ("AIV Holdings") and New Mountain Guardian AIV, L.P. ("Guardian AIV") (indirectly through its wholly-owned subsidiary, AIV Holdings) own 20,221,938 Common Membership Units of New Mountain Finance Holdings, L.L.C. (the "Units"). AIV Holdings is entitled to exchange, at any time, the Units for shares of New Mountain Finance Corporation's common stock on a one-for-one basis. The Units have no expiration date. New Mountain Investments III, L.L.C. is the general partner of Guardian AIV. New Mountain Capital, L.L.C. is the investment adviser to Guardian AIV. The reporting person is the managing member of New Mountain Investments III, L.L.C. and the managing member of New Mountain Capital, L.L.C.'s managing member, and may be deemed to beneficially own the shares for which the Units may be exchanged. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. /s/ Steven B. Klinsky 2011-05-19