X0306 4 2015-12-14 0 0001496099 New Mountain Finance Corp NMFC 0001515176 Stone James C/O NEW MOUNTAIN CAPITAL, L.L.C. 787 7TH AVENUE, 48TH FLOOR NEW YORK NY 10019 0 1 0 0 Section 16 Officer Common Stock 2015-12-14 4 P 0 1680 12.325 A 75977.833 D Common Stock 2015-12-14 4 P 0 320 12.37 A 76297.833 D Common Stock 8317.41 I By Spouse The price reported is the average weighted price. The shares were purchased in multiple transactions. The reporting person undertakes to provide to the SEC, the issuer and any security holder, upon request, full information regarding the number of shares and the prices at which the shares were purchased. /s/ James Stone 2015-12-14