Form 497VPU MASSACHUSETTS MUTUAL

Supplement dated June 30, 2026

to the Prospectus, Initial Summary Prospectus, and Updating Summary Prospectus, dated April 27, 2026,
as supplemented, for:

 

C.M. Life Electrum Select^SM
Issued by C.M. Life Insurance Company

 

and the Prospectus, Initial Summary Prospectus, and Updating Summary Prospectus, dated April 27, 2026, for:

 

Strategic Group Variable Universal Life^® II
Issued by Massachusetts Mutual Life Insurance Company

 

and the Prospectus and Updating Summary Prospectus, dated April 27, 2026, for:

 

MassMutual Electrum^SM
Issued by Massachusetts Mutual Life Insurance Company

 

 

This supplement amends certain information in the above-referenced prospectuses (“Prospectuses”):

 

●	Effective June 15, 2026, Nomura Corporate Research and Asset Management Inc. became a sub-advisor to Nomura VIP Asset Strategy Series.

 

Executive Group Life – Strategic Group Variable Universal Life® and Strategic Group Variable Universal Life® II	(800) 548-0073 8 a.m.–5 p.m. Eastern Time
Institutional Insurance – C.M. Life Electrum SelectSM and MassMutual ElectrumSM	(800) 665-2654 8 a.m.–5 p.m. Eastern Time

 

For more information about the fund, read the fund prospectus. Prospectuses are available on our website at www.MassMutual.com.

 

 

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