American Century World Mutual Funds Summary Prospectus and Prospectus Supplement Focused Global Growth Fund
Supplement dated April 12, 2025 n Summary Prospectus and Prospectus dated April 1, 2025

Keith Creveling, CFA, Senior Vice President and Executive Portfolio Manager, has announced his plans to retire. As a result, he will no longer serve as a portfolio manager for the fund effective October 15, 2025. He will remain with the firm through March 31, 2026.

The entries for Keith Creveling are to be deleted, effective October 15, 2025.

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