Prospectus by Investment Company - Form 497

SUPPLEMENT TO THE PROSPECTUS

Supplement dated September 12, 2024, to the Prospectus dated April 29, 2024.

MFS^® Value Series

Effective December 31, 2024, the following is added to the table in the sub-section entitled "Portfolio Manager(s)" under the main heading entitled "Summary of Key Information":

PortfolioManager	Since	Title
Thomas Crowley	December2024	InvestmentOfficerof MFS

Effective immediately, the following is added after the tables in the sub-sections entitled "Portfolio Manager(s)" under the main headings entitled "Summary of Key Information" and "Management of the Fund":

Nevin Chitkara has announced his intention to retire effective May 1, 2026, and he will no longer be a portfolio manager of the fund as of that date.

Effective December 31, 2024, the following is added to the table in the sub-section entitled "Portfolio Manager(s)" under the main heading entitled "Management of the Fund":

PortfolioManager	Primary Role	Five Year History
Thomas Crowley	Portfolio Manager	Employed in the investment area of MFS since 2007

VLU-SUP-I-091224

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