# EDGAR Filing Document

**Accession Number:** 0001052766
**File Stem:** 0001133228-25-012437
**Filing Date:** 2025-11
**Character Count:** 5485
**Document Hash:** 35ed39635889a07f9f884b8ae71df859
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-25-012437.hdr.sgml**: 20251117

**ACCESSION NUMBER**: 0001133228-25-012437

**CONFORMED SUBMISSION TYPE**: 497VPU

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251117

**DATE AS OF CHANGE**: 20251117

**EFFECTIVENESS DATE**: 20251117

**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:** 333-202684
- **FILM NUMBER:** 251492103

**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   |
|:---|:---|:---|
| C000156212 | MassMutual Transitions Select II |  |

**Supplement dated November 17, 2025**

**to the Prospectuses, Initial Summary Prospectuses, and Updating Summary Prospectuses each dated April 28, 2025, as supplemented, for:**

**MassMutual Capital Vantage<sup>®</sup>**

**MassMutual Transitions Select<sup>SM</sup> II**

*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.** |

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*This supplement amends certain information in the above-referenced prospectuses:*

**Fund Addition**

Beginning November 17, 2025, the following fund is added to **Appendix A** as an investment option under your Contract:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Fund Type** | **Fund and Adviser/Sub-Adviser** | **Current**<br> **Expenses**<br> **(expenses/**<br> **average assets)** | **Average Annual Total Returns**<br> **(as of 12/31/2024)** | **Average Annual Total Returns**<br> **(as of 12/31/2024)** | **Average Annual Total Returns**<br> **(as of 12/31/2024)** |
| **Fund Type** | **Fund and Adviser/Sub-Adviser** | **Current**<br> **Expenses**<br> **(expenses/**<br> **average assets)** | **1 Year** | **5 Year** | **10 Year** |
| Small/Mid-Cap Growth | MML Invesco Discovery Mid Cap Fund (Service Class I)\*\*<br> ***Adviser:*** MML Investment Advisers, LLC<br> ***Sub-Adviser:*** Invesco Advisers, Inc. | 1.08%<br>|  |  |  |

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*\*\*The expenses are based on estimated amounts for the current fiscal year of the Fund. The Fund has not been in operation for a full calendar year, and therefore has no performance history. Performance history will be available for the Fund after it has been in operation for one calendar year.*

 

*page 1 of 2* PS25_09

**Fund Name Changes and Sub-Adviser Changes**

&nbsp;&nbsp;&nbsp;&nbsp;• Effective November 14, 2025, the following funds were
renamed and the following fund sub-adviser changes occurred:

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| | |
|:---|:---|
| **Current Fund Name** | **New Fund Name** |
| MML International Equity Fund<br>***Adviser:*** MML Investment Advisers, LLC<br> ***Sub-Advisers:*** Massachusetts Financial Services Company and Harris Associates L.P. | MML VIP MFS International Equity Fund<br>***Adviser:*** MML Investment Advisers, LLC<br> ***Sub-Adviser:*** Massachusetts Financial Services Company |
| MML Total Return Bond Fund<br>***Adviser:*** MML Investment Advisers, LLC<br> ***Sub-Adviser:*** Metropolitan West Asset Management, LLC | MML VIP Fidelity Institutional AM<sup>®</sup> Core Plus Bond Fund<br>***Adviser:*** MML Investment Advisers, LLC<br> ***Sub-Adviser:*** FIAM LLC |

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&nbsp;&nbsp;&nbsp;&nbsp;• Effective November 14, 2025, the following funds were
renamed:

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| | |
|:---|:---|
| **Current Fund Name** | **New Fund Name** |
| MML Large Cap Growth Fund | MML VIP Loomis Sayles Large Cap Growth Fund |
| MML Mid Cap Value Fund | MML VIP American Century Mid Cap Value Fund |
| MML Small Cap Equity Fund | MML VIP Invesco Small Cap Equity Fund |
| MML Small Company Value Fund | MML VIP American Century Small Company Value Fund |

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&nbsp;&nbsp;&nbsp;&nbsp;• Effective on or about December 1, 2025, the following fund
will be renamed and the following fund sub-adviser change will occur:

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| | |
|:---|:---|
| **Current Fund Name** | **New Fund Name** |
| Macquarie VIP Asset Strategy Series<br>***Adviser:*** Delaware Management Company<br> ***Sub-Advisers:*** Macquarie Investment Management Austria Kapitalanlage AG, Macquarie Investment Management Europe Limited, and Macquarie Investment Management Global Limited | Nomura VIP Asset Strategy Series<br>***Adviser:*** Delaware Management Company<br> ***Sub-Advisers:*** Nomura Investment Management Austria Kapitalanlage AG and Macquarie Investment Management Global Limited |

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If you have questions about this supplement, or other product questions, you may contact your registered representative, visit us online at www.MassMutual.com/contact-us, or call our Service Center at (866) 645-2362, 7 a.m.**–**7 p.m. Central Time.

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

*page 2 of 2* PS25_09