Vanguard Malvern Funds

07/31/2026 | Press release | Distributed by Public on 07/31/2026 07:00

Prospectus by Investment Company (Form 497)

Vanguard Institutional Intermediate-Term Bond Fund

Vanguard Institutional Short-Term Bond Fund

Supplement Dated July 31, 2026, to the Prospectus Dated January 28, 2026

Effective August 3, 2026, Vanguard Institutional Intermediate-Term Bond Fund will change its benchmark from the Bloomberg U.S. Intermediate Aggregate ex Baa Index to the Bloomberg U.S. Intermediate Aggregate Index.

Additionally, effective August 3, 2026, Vanguard Institutional Short-Term Bond Fund will change its benchmark from the Bloomberg U.S. 1-3 Years Government/Credit ex Baa Index to the Bloomberg U.S. 1-3 Years Government/Credit Index.

© 2026 The Vanguard Group, Inc. All rights reserved.

PSI 472A 072026

Vanguard Marketing Corporation, Distributor.


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