# EDGAR Filing Document

**Accession Number:** 0000943863
**File Stem:** 0001133228-25-013435
**Filing Date:** 2025-12
**Character Count:** 3880
**Document Hash:** cab0736f500d0a0d6172c5d6a0120c10
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-25-013435.hdr.sgml**: 20251215

**ACCESSION NUMBER**: 0001133228-25-013435

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 11

**FILED AS OF DATE**: 20251215

**DATE AS OF CHANGE**: 20251215

**EFFECTIVENESS DATE**: 20251215

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** C M LIFE VARIABLE LIFE SEPARATE ACCOUNT I
- **CENTRAL INDEX KEY:** 0000943863

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

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-274306
- **FILM NUMBER:** 251570389

**BUSINESS ADDRESS:**
- **STREET 1:** 100 BRIGHT MEADOW BOULEVARD
- **CITY:** ENFIELD
- **STATE:** CT
- **ZIP:** 06082
- **BUSINESS PHONE:** (413)788-8411

**MAIL ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111-0001

## Series and Classes Contracts Data

### C M LIFE VARIABLE LIFE SEPARATE ACCOUNT I (Series ID: S000010877)

---

|  |  |
|:---|:---|
| Class Name   | Class ID   |
| Apex VUL (R) | C000246539 |

---

## Series and Classes Contracts Data

### C M LIFE VARIABLE LIFE SEPARATE ACCOUNT I (Series ID: S000010877)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000246539 | Apex VUL (R) |  |

?xml version='1.0' encoding='ASCII'?

**Supplement dated December 15, 2025**

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

**Apex VUL<sup>®</sup>**

*Issued by C.M. Life Insurance Company*

---

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

---

 

*Effective December 15, 2025, this Supplement amends certain information in the above-referenced Prospectuses:*

&nbsp;&nbsp;&nbsp;&nbsp;1. The **Annual Fee** table in the **Ongoing Fees and Expenses** row of the **Important Information You Should Consider About the Policy** section of the Prospectus, Initial Summary Prospectus, and Updating Summary Prospectus is deleted and replaced with the
following:

---

| |
|:---|
| **Annual Fee** |
| Fund options (Fund fees and expenses)0.12%<sup>(1)</sup>1.18%<sup>(1)</sup> |

---

** 

*<sup>(1)</sup> As a percentage of Fund assets.*

 

 

&nbsp;&nbsp;&nbsp;&nbsp;2. The **Annual Fund Operating Expenses** table in the **Fee Tables** section of the Prospectus and the **Additional Information About Fees** section of the Initial Summary Prospectus is deleted and replaced with the following:

---

| |
|:---|
| **Annual Fund Operating Expenses** |
| (expenses are deducted from Fund assets, including management fees, distribution, and/or 12b-1 fees, and other expenses)0.12%<sup>(1)</sup>1.18%<sup>(1)</sup> |

---

** 

*<sup>(1)</sup> The Fund expenses used to prepare this table were provided to us by the Funds. We have not independently verified such information provided to us by Funds that are not affiliated with us.*

 

&nbsp;&nbsp;&nbsp;&nbsp;3. The **Defined Outcome Funds Risk** sub-section of the **Principal Risks** section of the Prospectus is deleted.

 

 

&nbsp;&nbsp;&nbsp;&nbsp;4. The information pertaining to the Vest U.S. Large Cap 10% Buffer Strategies VI Fund (Class Y) in the **Funds Available Under the Policy** table of **Appendix A** of the Prospectus, Initial Summary Prospectus, and Updating Summary Prospectus is deleted.

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 Administrative Office at (800) 272-2216, 8 a.m.**–**8 p.m. Eastern Time.

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