American Century Target Maturities Trust SAI dated February 1, 2023 American Century International Bond Funds SAI dated March 1, 2023 American Century Variable Portfolios II, Inc. SAI dated May 1, 2023 American Century Investment Trust American Century Government Income Trust SAI dated August 1, 2023 American Century Municipal Trust SAI dated October 1, 2023 American Century Quantitative Equity Funds, Inc. SAI dated November 1, 2023
Supplement dated January 13, 2024

Effective December 31, 2023, Peter F. Pervere and John B. Shoven retired from the Board of Directors/Trustees.

The following entry is added to the Management table in the Statements of Additional Information:

Name (Year of Birth)	Position(s) Held with Funds	Length of Time Served	Principal Occupation(s) During Past 5 Years	Number of American Century Portfolios Overseen by Trustee	Other Directorships Held During Past 5 Years
Independent Trustees (Directors)
John M. Loder (1958)	Trustee/Director	Since 2024	Retired; Lawyer, Ropes & Gray LLP (1984 to 2023)	32	None

The following entry is added to the Qualifications of Trustees/Directors section in the Statements of Additional Information:

John M. Loder: AB in English History and Literature, Harvard University; JD, Harvard Law School; over 35 years serving as counsel to investment companies, their directors, and asset management firms

Effective January 1, 2024, committee membership under the Board Leadership Structure and Standing Board Committees section in each SAI includes:

Audit and Compliance Committee: Jennifer Cabalquinto (chair), Tanya S. Beder, Anne Casscells and John M. Loder

Client Experience Oversight Committee: Jeremy I. Bulow (chair), Jonathan D. Levin and John M. Loder

Corporate Governance Committee: Jonathan D. Levin (chair), Tanya Beder, Jeremy I. Bulow and John M. Loder

Portfolio Committee: Anne Casscells (chair), Tanya S. Beder, Jeremy I. Bulow, Jennifer Cabalquinto, Jonathan D. Levin and John M. Loder

Technology and Risk Committee: Tanya S. Beder (chair), Jennifer Cabalquinto and Anne Casscells

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