Vanguard Wellington™ Fund

Supplement Dated March 29, 2021, to the Prospectus and Summary Prospectus Dated March 29, 2021

Important Change to Vanguard Wellington Fund

Effective at the close of business on June 30, 2021, Michael E. Stack will retire from Wellington Management Company LLP and will no longer serve as a portfolio manager for Vanguard Wellington Fund.

Loren L. Moran and Daniel J. Pozen, who currently serve as portfolio managers with Mr. Stack, will remain as portfolio managers of the Fund upon Mr. Stack’s retirement. The Fund’s investment objective, strategies, and policies will remain unchanged.

Vanguard Marketing Corporation, Distributor.PS 21G 032021

Vanguard Wellington™ Fund

Supplement Dated March 29, 2021, to the Statement of Additional Information Dated March 29, 2021

Important Change to Vanguard Wellington Fund

Effective at the close of business on June 30, 2021, Michael E. Stack will retire from Wellington Management Company LLP and will no longer serve as a portfolio manager for Vanguard Wellington Fund.

Loren L. Moran and Daniel J. Pozen, who currently serve as portfolio managers with Mr. Stack, will remain as portfolio managers of the Fund upon Mr. Stack’s retirement. The Fund's investment objective, strategies, and policies will remain unchanged.

Vanguard Marketing Corporation, Distributor.

SAI 21H 032021