# EDGAR Filing Document

**Accession Number:** 0001052766
**File Stem:** 0001133228-25-010991
**Filing Date:** 2025-10
**Character Count:** 3937
**Document Hash:** 526522d311f7638ea95e3c6b1832597b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-25-010991.hdr.sgml**: 20251017

**ACCESSION NUMBER**: 0001133228-25-010991

**CONFORMED SUBMISSION TYPE**: 497VPU

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251017

**DATE AS OF CHANGE**: 20251017

**EFFECTIVENESS DATE**: 20251017

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSACHUSETTS MUTUAL VARIABLE ANNUITY SEPARATE ACCOUNT 4
- **CENTRAL INDEX KEY:** 0001052766

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497VPU
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-255824
- **FILM NUMBER:** 251400019

**BUSINESS ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **STREET 2:** M243
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111
- **BUSINESS PHONE:** 8605622420

**MAIL ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **STREET 2:** M243
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111

## Series and Classes Contracts Data

### MASSACHUSETTS MUTUAL VARIABLE ANNUITY SEPARATE ACCOUNT 4 (Series ID: S000007826)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000228859 | Envision     |  |

**Supplement dated October 17, 2025**

**to the Prospectus, Initial Summary Prospectus, and Updating Summary Prospectus,** 

**each dated April 28, 2025 (each a "Prospectus"), as supplemented, for:**

**MassMutual Envision<sup>SM</sup>**

*Issued by Massachusetts Mutual Life Insurance Company*

 

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| |
|:---|
| **THIS SUPPLEMENT MUST BE READ IN CONJUNCTION WITH YOUR PROSPECTUS.** |
| **PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.** |

---

This Supplement amends certain information in the above-referenced Prospectuses. Capitalized terms used in this Supplement are defined in your Prospectus unless otherwise defined here.

**Plan of Liquidation of the Vest US Large Cap 10% Buffer Strategies VI Fund<sup>(1)</sup>**

On October 1, 2025, the Board of Trustees of World Funds Trust approved a Plan of Liquidation for the Vest US Large Cap 10% Buffer Strategies VI Fund (the "Fund"). The Fund is expected to liquidate on or about December 15, 2025 (the "Liquidation Date").

 **

***Closure of the Fund to New Investments***

 **

Effective October 24, 2025, the Fund will be closed to new investors.

If you do not have any Contract Value allocated to the Sub-Account investing in the Fund (the "Vest Sub-Account") as of that date, you may not allocate any Purchase Payments to the Vest Sub-Account or make any fund transfers into the Vest Sub-Account.

***Closure of the Fund to Subsequent Investments***

 ****

Effective December 1, 2025, the Fund will be closed to all subsequent investments.

If you have Contract Value allocated to the Vest Sub-Account as of December 1, 2025, you may no longer allocate any Purchase Payments to the Vest Sub-Account or make any fund transfers into the Vest Sub-Account.

 ****

If you use the Vest Sub-Account as part of your Automatic Rebalancing Program or Separate Account Dollar Cost Averaging Program, your program may terminate unless you remove the Vest Sub-Account as an investment choice in that program prior to that date.

Prior to the Liquidation Date, we will provide you with further information about what will happen if you have Contract Value invested in the Vest Sub-Account as of that date.

If you have questions about this supplement, or want to discuss how to reallocate your Contract Value invested in the Vest Sub-Account prior to the Liquidation Date, you may contact your registered representative, visit us online at www.MassMutual.com/contact-us, or call our Customer Service Center at (800) 272-2216, 8 a.m.**–**8 p.m. Eastern Time.

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

(1) This fund is not available for policies issued in New York.

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