X0306 4 2015-09-28 0 0001496099 New Mountain Finance Corp NMFC 0001260098 HAMWEE ROBERT C/O NEW MOUNTAIN CAPITAL, L.L.C. 787 7TH AVENUE, 48TH FLOOR NEW YORK NY 10019 1 1 0 0 CEO, President and Director Common Stock 2015-09-28 4 P 0 20000 13.5437 A 184592.341 D Common Stock 12000.00 I By Spouse, Dana L. Hamwee Inherited IRA 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/ Robert Hamwee 2015-09-30