UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: September 1, 2021 10:30 A.M.
Form: N-4
CIK: 0001052766
Company Name: MASSACHUSETTS MUTUAL VARIABLE ANNUITY SEPARATE ACCOUNT 4
File Number: 333-255824
REFERENCED SERIES/CLASSES (CONTRACTS)
Series ID
Class/Contract Name
S000007826 MASSACHUSETTS MUTUAL VARIABLE ANNUITY SEPARATE ACCOUNT 4
C000228859 Envision