497 1 acwmf9116saisupp497e.htm 497 Document

American Century World Mutual Funds, Inc.

Statement of Additional Information Supplement
Supplement dated September 1, 2016 n Statement of Additional Information dated March 29, 2016

Yulin Long, Vice President, Portfolio Manager and Senior Quantitative Analyst, will no longer serve as a portfolio manager of the International Value Fund or the NT International Value Fund as of September 1, 2016. All references to Dr. Long should be removed.

©2016 American Century Proprietary Holdings, Inc. All rights reserved.
CL-SPL-90295   1609