13F-NT LIVE false true false 0001361064 XXXXXXXX 03-31-2015 03-31-2015 BAIN CAPITAL FUND IX L P

JOHN HANCOCK TOWER 200 CLARENDON STREET BOSTON MA 02116

13F NOTICE 028-13938 28-11185 Bain Capital Investors, LLC 28-13942 Bain Capital Partners IX, L.P. Y The report on Form 13F for the period ended March 31, 2015 for Bain Capital Fund IX, L.P. (the "Fund") is being filed by Bain Capital Investors, LLC, the general partner of Bain Capital Partners IX, L.P., which is the general partner of the Fund. Michael D. Ward (617) 516-2000 /s/ Michael D. Ward Boston MA 05-15-2015