# EDGAR Filing Document

**Accession Number:** 0000723258
**File Stem:** 0001193125-26-290385
**Filing Date:** 2026-6
**Character Count:** 17602
**Document Hash:** 2d1781d782e919c6c97a7fcb088d82ba
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-290385.hdr.sgml**: 20260630

**ACCESSION NUMBER**: 0001193125-26-290385

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260630

**EFFECTIVENESS DATE**: 20260630

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSMUTUAL ASCEND LIFE INSURANCE CO
- **CENTRAL INDEX KEY:** 0000723258
- **STANDARD INDUSTRIAL CLASSIFICATION:** LIFE INSURANCE [6311]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 131935920
- **STATE OF INCORPORATION:** OH
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-276475
- **FILM NUMBER:** 261140318

**BUSINESS ADDRESS:**
- **STREET 1:** 191 ROSA PARKS STREET
- **CITY:** CINCINNATI
- **STATE:** OH
- **ZIP:** 45202
- **BUSINESS PHONE:** 513-361-9462

**MAIL ADDRESS:**
- **STREET 1:** 191 ROSA PARKS STREET
- **CITY:** CINCINNATI
- **STATE:** OH
- **ZIP:** 45202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GREAT AMERICAN LIFE INSURANCE CO
- **DATE OF NAME CHANGE:** 19830712

## Series and Classes Contracts Data

### MASSMUTUAL ASCEND LIFE INSURANCE CO (Series ID: S000090810)

---

|  |  |
|:---|:---|
| Class Name         | Class ID   |
| Index Summit 6 Pro | C000258755 |

---

## Series and Classes Contracts Data

### MASSMUTUAL ASCEND LIFE INSURANCE CO (Series ID: S000090810)

| Class ID   | Class Name         | Ticker Symbol   |
|:---|:---|:---|
| C000258755 | Index Summit 6 Pro |  |

**MassMutual Ascend Life Insurance Company** 

**Index Summit 6 Pro Annuity With Death Benefit Return of Premium** 

**Index Summit 6 Pro Annuity** 

Individual Index-linked Modified Single Premium Deferred Annuities

**Supplement Dated June 30, 2026** 

**To the Prospectuses and Updating Summary Prospectuses Dated May 1, 2026** 

This supplement is intended to update certain information in the prospectuses and updating summary prospectuses for the Index Summit 6 Pro with Death Benefit Return of Premium and the Index Summit 6 Pro index-linked annuities ("Contracts"). All other provisions outlined in your prospectus and updating summary prospectus remain unchanged. Unless otherwise indicated, terms used in this supplement have the same meaning as in your Contract prospectus and updating summary prospectus.

**CONTRACT FEATURES** 

Effective the date of this supplement, the description of the **Performance Lock** feature on Page 11 of the prospectuses is deleted and replaced with the following:

A Performance Lock allows you to lock in the Daily Value Percentage of an eligible Indexed Strategy for the remainder of a Term. You may make a Performance Lock election for any Term or Terms of the S&P 500 Indexed Strategies (excluding the 0% Floor Cap Strategy and the three Trigger Strategies), the First Trust Barclays Edge Indexed Strategies, and the Russell 2000 Indexed Strategies. A Performance Lock election is not available for Contracts issued in Missouri with a Contract Effective Date before May 21, 2025.

**INDEXED STRATEGY VALUE AFTER PERFORMANCE LOCK ELECTION** 

Effective the date of this supplement, the first paragraph under the heading **INDEXED STRATEGY VALUE AFTER PERFORMANCE LOCK ELECTION** on Page 51 of the prospectuses is deleted and replaced with the following:

Performance Lock is an election to lock in the Daily Value Percentage for the remainder of a Term of an Indexed Strategy. You can make a Performance Lock election for each Term of an S&P 500 Strategy (excluding the 0% Floor with Cap Indexed Strategy and the three Trigger Strategies), a First Trust Barclays Edge Strategy, and a Russell 2000 Strategy. A Performance Lock election is not available for Contracts issued in Missouri with a Contract Effective Date before May 21, 2025. Only one Performance Lock election may be made for a given Term of a Strategy.

**INDEXED STRATEGY AVAILABILITY IN CALIFORNIA** 

The following four Combination Strategies are available for Contracts issued in **California** with a Contract Effective Date on or after January 7, 2026, but only for Terms beginning after July 20, 2026:

S&P 500<sup>®</sup> 3-Year 10% Buffer with Upside Participation Rate and Cap Indexed Strategy

S&P 500<sup>®</sup> 3-Year 20% Buffer with Upside Participation Rate and Cap Indexed Strategy

Russell 2000<sup>®</sup> 3-Year 10% Buffer with Upside Participation Rate and Cap Indexed Strategy

Russell 2000<sup>®</sup> 3-Year 20% Buffer with Upside Participation Rate and Cap Indexed Strategy

The following four Combination Strategies are available for Contracts issued in **California** with a Contract Effective Date on or after July 21, 2026:

S&P 500<sup>®</sup> 6-Year 10% Buffer with Upside Participation Rate and Cap Indexed Strategy

S&P 500<sup>®</sup> 6-Year 20% Buffer with Upside Participation Rate and Cap Indexed Strategy

Russell 2000<sup>®</sup> 6-Year 10% Buffer with Upside Participation Rate and Cap Indexed Strategy

Russell 2000<sup>®</sup> 6-Year 20% Buffer with Upside Participation Rate and Cap Indexed Strategy

The following six Indexed Strategies will continue to be available for Contracts issued in **California** with a Contract Effective Date before September 7, 2026:

S&P 500<sup>®</sup> 3-Year 10% Buffer with Upside Participation Rate Indexed Strategy

S&P 500<sup>®</sup> 3-Year 20% Buffer with Upside Participation Rate Indexed Strategy

S&P 500<sup>®</sup> 6-Year 10% Buffer with Upside Participation Rate Indexed Strategy

S&P 500<sup>®</sup> 6-Year 20% Buffer with Upside Participation Rate Indexed Strategy

Russell 2000<sup>®</sup> 6-Year 10% Buffer with Upside Participation Rate Indexed Strategy

Russell 2000<sup>®</sup> 6-Year 20% Buffer with Upside Participation Rate Indexed Strategy

The following two Indexed Strategies will continue to be available for Contracts issued in **California** with a Contract Effective Date on or after May 21, 2025, and before September 7, 2026:

Russell 2000<sup>®</sup> 3-Year 10% Buffer with Upside Participation Rate Indexed Strategy

Russell 2000<sup>®</sup> 3-Year 20% Buffer with Upside Participation Rate Indexed Strategy

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**APPENDIX A: INVESTMENT OPTIONS AVAILABLE UNDER THE CONTRACT** 

Effective as of the date of this supplement, **Appendix A: Investment Options Available Under the Contract** ("Appendix A") in the prospectuses and the updating summary prospectuses is deleted and replaced with the following Appendix A to reflect changes to the footnotes addressing the availability of certain strategies in **California**.

**APPENDIX A: INVESTMENT OPTIONS AVAILABLE UNDER THE CONTRACT** 

The following is a list of Indexed Strategies currently available under the Contract. We may change the features of the Indexed Strategies listed below (including the Index and the current limits on Index gains and losses), offer new Indexed Strategies, and terminate existing Indexed Strategies. We will provide you with written notice before making any changes other than changes to current limits on Index gains. Information about current limits on Index gains is available at <u>www.massmutualascend.com/index-summit-6-pro</u>. For additional information about the features of the Indexed Strategies, please see the "Indexed Strategies" section in the prospectus. The practical availability of investment options at the time of sale may vary depending on the broker-dealer through which the Contract is sold. See Appendix D – Financial Intermediary Variations in the prospectus.

**Note: If amounts are removed from an Indexed Strategy before the end of its Term, we will apply a Daily Value Percentage adjustment. This may result in a significant reduction in your Strategy value that could exceed any protection from Index loss that would be in place if you held the Indexed Strategy until the end of the Term. You may not be able to invest in certain Indexed Strategies, as noted below.** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Index** | **Type of Index** | **Term** | **Current Limit on Index Loss (if held<br>until end of Term)** | **Minimum Limit on Index Gain (for the life of<br>the Indexed Strategy)** | **Performance<br>Lock <sup>5</sup>** |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | 0% Floor | 1% Cap | N/A |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | -10% Floor | 1% Cap | Available |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | 10% Buffer | 1% Cap | Available |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | 10% Buffer | 1% Trigger Rate | N/A |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | 10% Buffer | 1% Dual Performance Trigger Rate | N/A |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | 20% Buffer | 1% Cap | Available |
|  S&P 500<sup>®</sup> <sup>1</sup> | Market Index | 1 Year | 20% Buffer | 1% Trigger Rate | N/A |
|  S&P 500<sup>®</sup> | Market Index | 1 Year | 50% Downside Participation Rate | 1% Cap | Available |
|  S&P 500<sup>®</sup> | Market Index | 1 Year | 50% Downside Participation Rate | 5% Upside Participation Rate | Available |
|  S&P 500<sup>®</sup> | Market Index | 2 Years | 50% Downside Participation Rate | 1% Cap | Available |
|  S&P 500<sup>®</sup> | Market Index | 2 Years | 50% Downside Participation Rate | 5% Upside Participation Rate | Available |
|  S&P 500<sup>®</sup> <sup>2</sup> | Market Index | 3 Years | 10% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  S&P 500<sup>®</sup> <sup>2</sup> | Market Index | 3 Years | 20% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  S&P 500<sup>®</sup> <sup>3</sup> | Market Index | 6 Years | 10% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  S&P 500<sup>®</sup> <sup>3</sup> | Market Index | 6 Years | 20% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  iShares MSCI EAFE ETF<sup>1</sup> | ETF | 1 Year | -10% Floor | 1% Cap | N/A |
|  iShares MSCI EAFE ETF | ETF | 1 Year | 50% Downside Participation Rate | 5% Upside Participation Rate | N/A |
|  iShares U.S. Real Estate ETF<sup>1</sup> | ETF | 1 Year | -10% Floor | 1% Cap | N/A |
|  iShares U.S. Real Estate ETF | ETF | 1 Year | 50% Downside Participation Rate | 5% Upside Participation Rate | N/A |
|  SPDR Gold Shares ETF<sup>1</sup> | ETF | 1 Year | -10% Floor | 1% Cap | N/A |
|  First Trust Barclays Edge<sup>1</sup> | Market Index | 1 Year | 10% Buffer | 5% Upside Participation Rate | Available |
|  First Trust Barclays Edge<sup>1</sup> | Market Index | 1 Year | 50% Downside Participation Rate | 5% Upside Participation Rate | Available |
|  Russell 2000<sup>®</sup> <sup>4</sup> | Market Index | 1 Year | 10% Buffer | 1% Cap | Available |
|  Russell 2000<sup>®</sup> <sup>4</sup> | Market Index | 1 Year | 20% Buffer | 1% Cap | Available |
|  Russell 2000<sup>®</sup> <sup>2</sup> | Market Index | 3 Years | 10% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  Russell 2000<sup>®</sup> <sup>2</sup> | Market Index | 3 Years | 20% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  Russell 2000<sup>®</sup> <sup>3</sup> | Market Index | 6 Years | 10% Buffer | 5% Upside Participation Rate & 1% Cap | Available |
|  Russell 2000<sup>®</sup> <sup>3</sup> | Market Index | 6 Years | 20% Buffer | 5% Upside Participation Rate & 1% Cap | Available |

---

<sup>1</sup> These Strategies are not available for Contracts issued in **Missouri** with a Contract Effective Date before May 21, 2025. 

<sup>2</sup> These Strategies are not available for Contracts with a Contract Effective Date before May 21, 2025. For Contracts issued in **California** on or after January 7, 2026, these Strategies are not available for Terms beginning before July 21, 2026. 

<sup>3</sup> These Strategies are not available for Contracts with a Contract Effective Date before January 7, 2026. They are not available for Contracts issued in **California** with a Contract Effective Date before July 21, 2026. 

<sup>4</sup> These Strategies are not available for Contracts with a Contract Effective Date before May 21, 2025. For Contracts issued in **California** on or after May 21, 2025, these Strategies are not available for Terms beginning before January 7, 2026. 

<sup>5</sup> Performance Lock is not available for Contracts issued in **Missouri** with a Contract Effective Date before May 21, 2025. 

------

The following eight additional Indexed Strategies are available for Contracts with a Contract Effective Date before February 21, 2026. For Contracts issued in **California,** they are available for Contracts issued with a Contract Effective Date before September 7, 2026.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Index** | **Type of Index** | **Term** | **Current Limit on Index Loss (if held<br>until end of Term)** | **Minimum Limit on Index Gain (for the life of<br>the Indexed Strategy)** | **Performance<br>Lock <sup>3</sup>** |
| S&P 500<sup>®</sup><sup>1</sup> | Market Index | 3 Years | 10% Buffer | 5% Upside Participation Rate | Available |
| S&P 500<sup>®</sup><sup>1</sup> | Market Index | 3 Years | 20% Buffer | 5% Upside Participation Rate | Available |
| S&P 500<sup>®</sup> | Market Index | 6 Years | 10% Buffer | 5% Upside Participation Rate | Available |
| S&P 500<sup>®</sup><sup>1</sup> | Market Index | 6 Years | 20% Buffer | 5% Upside Participation Rate | Available |
| Russell 2000<sup>®</sup> <sup>2</sup> | Market Index | 3 Years | 10% Buffer | 5% Upside Participation Rate | Available |
| Russell 2000<sup>®</sup> <sup>2</sup> | Market Index | 3 Years | 20% Buffer | 5% Upside Participation Rate | Available |
| Russell 2000<sup>®</sup> <sup>1</sup> | Market Index | 6 Years | 10% Buffer | 5% Upside Participation Rate | Available |
| Russell 2000<sup>®</sup> <sup>1</sup> | Market Index | 6 Years | 20% Buffer | 5% Upside Participation Rate | Available |

---

<sup>1</sup> These Strategies are not available for Contracts issued in **Missouri** with a Contract Effective Date before May 21, 2025. 

<sup>2</sup> These Strategies are not available for Contracts with a Contract Effective Date before May 21, 2025. For Contracts issued in **California** on or after May 21, 2025, these Strategies are not available for Terms beginning before January 7, 2026. 

<sup>3</sup> Performance Lock is not available for Contracts issued in **Missouri** with a Contract Effective Date before May 21, 2025. 

The **S&P 500** is a "price return index," not a "total return index," and therefore does not reflect dividends paid on the securities composing the Index. This will reduce the Index return and cause the Index to underperform a direct investment in the securities composing the Index.

The **iShares MSCI EAFE ETF** deducts fees and costs when calculating Index performance. This will reduce the ETF's return and cause the ETF to underperform a direct investment in the securities composing the ETF.

The **iShares U.S. Real Estate ETF** deducts fees and costs when calculating Index performance. This will reduce the ETF's return and cause the ETF to underperform a direct investment in the securities composing the ETF.

The **SPDR Gold Shares ETF** deducts fees and costs when calculating Index performance. This will reduce the ETF's return and cause the ETF to underperform a direct investment in gold bullion.

The **First Trust Barclays Edge** is an "excess return index" that subtracts a risk-free interest rate from the price and dividend return of the securities. It also deducts fees and costs when calculating Index performance. This will reduce the Index's return and cause the Index to underperform a direct investment in the securities composing the Index.

The **Russell 2000** is a "price return index," not a "total return index," and therefore does not reflect dividends paid on the securities composing the Index. This will reduce the Index return and cause the Index to underperform a direct investment in the securities composing the Index.

**Possible Changes in Indexed Strategies.** 

**The S&P 500 1-Year 50% Downside Participation Rate with Upside Participation Rate Indexed Strategy will always be available. At the end of a Term, we may stop offering any other Indexed Strategy. Consequently, any other Indexed Strategy listed above may not be available after the end of the initial Term. We have the right to replace the Index associated with an Indexed Strategy under certain circumstances.** 

**In the future, we may offer new Indexed Strategies. Any new Buffer Strategy will offer protection against loss at least equal to a 5% Buffer. Any new Floor Strategy will offer protection against loss at least equal to a -20% Floor. Any new Downside Participation Rate Strategy will offer protection against loss at least equal to a 75% Downside Participation Rate.** 

**Positive return factors can change from one Term to the next, subject to the following minimum rates: A Cap will never be lower than 1%, an Upside Participation Rate will never be lower than 5%, and a Trigger Rate will never be lower than 1%. Indexed Strategies that may be available in the future may earn a return that is lower than the return your investments would have earned if they had been invested in the other Indexed Strategies that are currently available. In addition, any reduction in the available number of Indexed Strategies may reduce your opportunity to increase your Contract value.** 

If you have any questions about this supplement, please call 1-800-789-6771 or contact your registered representative.

**Please retain this supplement for future reference.**