This supplement provides new and additional information beyond that contained in the Statement of Additional Information (“SAI”). It should be retained and read in conjunction with the SAI.

Effective immediately, the following information supplements the information beginning on page B-59 under the heading Principal Officers in the section titled Management of the Trust:

Director of Product Management (since 2025), Senior Product Manager (2022-2025), MML Advisers; Director of Product Management (since 2025), Senior Product Manager (2022-2025), MassMutual; Senior Fund Administration Supervisor (2020-2022) Massachusetts Financial Services Company; Vice President (since 2025), MassMutual Select Funds (open-end investment company); Vice President (since 2025), MassMutual Premier Funds (open-end investment company); Vice President (since 2025), MassMutual Advantage Funds (open-end investment company); Vice President (since 2025), MML Series Investment Fund (open-end investment company); Vice President (since 2025), MML Series Investment Fund II (open-end investment company).