# EDGAR Filing Document

**Accession Number:** 0000933691
**File Stem:** 0001999371-26-004217
**Filing Date:** 2026-2
**Character Count:** 17967
**Document Hash:** fc7c6a9b0647d350aa8db7c5e64fa4b0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-26-004217.hdr.sgml**: 20260225

**ACCESSION NUMBER**: 0001999371-26-004217

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 18

**FILED AS OF DATE**: 20260225

**DATE AS OF CHANGE**: 20260225

**EFFECTIVENESS DATE**: 20260225

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** JNL SERIES TRUST
- **CENTRAL INDEX KEY:** 0000933691

**ORGANIZATION NAME:**
- **EIN:** 381659835
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-87244
- **FILM NUMBER:** 26676517

**BUSINESS ADDRESS:**
- **STREET 1:** 1 CORPORATE WAY
- **CITY:** LANSING
- **STATE:** MI
- **ZIP:** 48951
- **BUSINESS PHONE:** (517) 367-4336

**MAIL ADDRESS:**
- **STREET 1:** 1 CORPORATE WAY
- **CITY:** LANSING
- **STATE:** MI
- **ZIP:** 48951

## Series and Classes Contracts Data

### JNL/FIDELITY INSTITUTIONAL ASSET MANAGEMENT TOTAL BOND FUND (Series ID: S000001741)

---

|  |  |
|:---|:---|
| Class Name                                                      | Class ID   |
| JNL/FIDELITY INSTITUTIONAL ASSET MANAGEMENT TOTAL BOND FUND (A) | C000004648 |
| JNL/FIDELITY INSTITUTIONAL ASSET MANAGEMENT TOTAL BOND FUND (I) | C000067979 |

---

### JNL/MELLON UTILITIES SECTOR FUND (Series ID: S000040007)

---

|  |  |
|:---|:---|
| Class Name                           | Class ID   |
| JNL/MELLON UTILITIES SECTOR FUND (A) | C000124095 |
| JNL/MELLON UTILITIES SECTOR FUND (I) | C000124096 |

---

### JNL/Mellon Consumers Staples Sector Fund (Series ID: S000058483)

---

|  |  |
|:---|:---|
| Class Name                                   | Class ID   |
| JNL/Mellon Consumers Staples Sector Fund (A) | C000192048 |
| JNL/Mellon Consumers Staples Sector Fund (I) | C000192049 |

---

### JNL/Mellon Materials Sector Fund (Series ID: S000058484)

---

|  |  |
|:---|:---|
| Class Name                           | Class ID   |
| JNL/Mellon Materials Sector Fund (A) | C000192050 |
| JNL/Mellon Materials Sector Fund (I) | C000192051 |

---

### JNL/Mellon Industrials Sector Fund (Series ID: S000058485)

---

|  |  |
|:---|:---|
| Class Name                             | Class ID   |
| JNL/Mellon Industrials Sector Fund (A) | C000192052 |
| JNL/Mellon Industrials Sector Fund (I) | C000192053 |

---

### JNL/Mellon U.S. Stock Market Index Fund (Series ID: S000058496)

---

|  |  |
|:---|:---|
| Class Name                                  | Class ID   |
| JNL/Mellon U.S. Stock Market Index Fund (I) | C000192074 |
| JNL/Mellon U.S. Stock Market Index Fund (A) | C000192075 |

---

### JNL/Mellon Dow Index Fund (Series ID: S000068117)

---

|  |  |
|:---|:---|
| Class Name                    | Class ID   |
| JNL/Mellon Dow Index Fund (I) | C000218192 |
| JNL/Mellon Dow Index Fund (A) | C000218193 |

---

### JNL/Mellon World Index Fund (Series ID: S000068118)

---

|  |  |
|:---|:---|
| Class Name                      | Class ID   |
| JNL/Mellon World Index Fund (I) | C000218194 |
| JNL/Mellon World Index Fund (A) | C000218195 |

---

### JNL/Mellon Nasdaq 100 Index Fund (Series ID: S000068119)

---

|  |  |
|:---|:---|
| Class Name                           | Class ID   |
| JNL/Mellon Nasdaq 100 Index Fund (I) | C000218196 |
| JNL/Mellon Nasdaq 100 Index Fund (A) | C000218197 |

---

### JNL/Mellon Consumer Discretionary Sector Fund (Series ID: S000068122)

---

|  |  |
|:---|:---|
| Class Name                                        | Class ID   |
| JNL/Mellon Consumer Discretionary Sector Fund (A) | C000218202 |
| JNL/Mellon Consumer Discretionary Sector Fund (I) | C000218203 |

---

### JNL/Mellon Energy Sector Fund (Series ID: S000068123)

---

|  |  |
|:---|:---|
| Class Name                        | Class ID   |
| JNL/Mellon Energy Sector Fund (A) | C000218204 |
| JNL/Mellon Energy Sector Fund (I) | C000218205 |

---

### JNL/Mellon Financial Sector Fund (Series ID: S000068124)

---

|  |  |
|:---|:---|
| Class Name                           | Class ID   |
| JNL/Mellon Financial Sector Fund (I) | C000218206 |
| JNL/Mellon Financial Sector Fund (A) | C000218207 |

---

### JNL/Mellon Information Technology Sector Fund (Series ID: S000068126)

---

|  |  |
|:---|:---|
| Class Name                                        | Class ID   |
| JNL/Mellon Information Technology Sector Fund (A) | C000218210 |
| JNL/Mellon Information Technology Sector Fund (I) | C000218211 |

---

### JNL Mid Cap Index Fund (Series ID: S000071119)

---

|  |  |
|:---|:---|
| Class Name                 | Class ID   |
| JNL Mid Cap Index Fund (I) | C000225785 |

---

### JNL Small Cap Index Fund (Series ID: S000071120)

---

|  |  |
|:---|:---|
| Class Name                   | Class ID   |
| JNL Small Cap Index Fund (I) | C000225786 |

---

### JNL Bond Index Fund (Series ID: S000071121)

---

|  |  |
|:---|:---|
| Class Name              | Class ID   |
| JNL Bond Index Fund (I) | C000225787 |

---

### JNL International Index Fund (Series ID: S000071122)

---

|  |  |
|:---|:---|
| Class Name                       | Class ID   |
| JNL International Index Fund (I) | C000225788 |

---

### JNL Emerging Markets Index Fund (Series ID: S000071123)

---

|  |  |
|:---|:---|
| Class Name                          | Class ID   |
| JNL Emerging Markets Index Fund (I) | C000225789 |

---

## Series and Classes Contracts Data

### JNL/FIDELITY INSTITUTIONAL ASSET MANAGEMENT TOTAL BOND FUND (Series ID: S000001741)

| Class ID   | Class Name                                                      | Ticker Symbol   |
|:---|:---|:---|
| C000004648 | JNL/FIDELITY INSTITUTIONAL ASSET MANAGEMENT TOTAL BOND FUND (A) |  |
| C000067979 | JNL/FIDELITY INSTITUTIONAL ASSET MANAGEMENT TOTAL BOND FUND (I) |  |

### JNL/MELLON UTILITIES SECTOR FUND (Series ID: S000040007)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000124095 | JNL/MELLON UTILITIES SECTOR FUND (A) |  |
| C000124096 | JNL/MELLON UTILITIES SECTOR FUND (I) |  |

### JNL/Mellon Consumers Staples Sector Fund (Series ID: S000058483)

| Class ID   | Class Name                                   | Ticker Symbol   |
|:---|:---|:---|
| C000192048 | JNL/Mellon Consumers Staples Sector Fund (A) |  |
| C000192049 | JNL/Mellon Consumers Staples Sector Fund (I) |  |

### JNL/Mellon Materials Sector Fund (Series ID: S000058484)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000192050 | JNL/Mellon Materials Sector Fund (A) |  |
| C000192051 | JNL/Mellon Materials Sector Fund (I) |  |

### JNL/Mellon Industrials Sector Fund (Series ID: S000058485)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000192052 | JNL/Mellon Industrials Sector Fund (A) |  |
| C000192053 | JNL/Mellon Industrials Sector Fund (I) |  |

### JNL/Mellon U.S. Stock Market Index Fund (Series ID: S000058496)

| Class ID   | Class Name                                  | Ticker Symbol   |
|:---|:---|:---|
| C000192074 | JNL/Mellon U.S. Stock Market Index Fund (I) |  |
| C000192075 | JNL/Mellon U.S. Stock Market Index Fund (A) |  |

### JNL/Mellon Dow Index Fund (Series ID: S000068117)

| Class ID   | Class Name                    | Ticker Symbol   |
|:---|:---|:---|
| C000218192 | JNL/Mellon Dow Index Fund (I) |  |
| C000218193 | JNL/Mellon Dow Index Fund (A) |  |

### JNL/Mellon World Index Fund (Series ID: S000068118)

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000218194 | JNL/Mellon World Index Fund (I) |  |
| C000218195 | JNL/Mellon World Index Fund (A) |  |

### JNL/Mellon Nasdaq 100 Index Fund (Series ID: S000068119)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000218196 | JNL/Mellon Nasdaq 100 Index Fund (I) |  |
| C000218197 | JNL/Mellon Nasdaq 100 Index Fund (A) |  |

### JNL/Mellon Consumer Discretionary Sector Fund (Series ID: S000068122)

| Class ID   | Class Name                                        | Ticker Symbol   |
|:---|:---|:---|
| C000218202 | JNL/Mellon Consumer Discretionary Sector Fund (A) |  |
| C000218203 | JNL/Mellon Consumer Discretionary Sector Fund (I) |  |

### JNL/Mellon Energy Sector Fund (Series ID: S000068123)

| Class ID   | Class Name                        | Ticker Symbol   |
|:---|:---|:---|
| C000218204 | JNL/Mellon Energy Sector Fund (A) |  |
| C000218205 | JNL/Mellon Energy Sector Fund (I) |  |

### JNL/Mellon Financial Sector Fund (Series ID: S000068124)

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000218206 | JNL/Mellon Financial Sector Fund (I) |  |
| C000218207 | JNL/Mellon Financial Sector Fund (A) |  |

### JNL/Mellon Information Technology Sector Fund (Series ID: S000068126)

| Class ID   | Class Name                                        | Ticker Symbol   |
|:---|:---|:---|
| C000218210 | JNL/Mellon Information Technology Sector Fund (A) |  |
| C000218211 | JNL/Mellon Information Technology Sector Fund (I) |  |

### JNL Mid Cap Index Fund (Series ID: S000071119)

| Class ID   | Class Name                 | Ticker Symbol   |
|:---|:---|:---|
| C000225785 | JNL Mid Cap Index Fund (I) |  |

### JNL Small Cap Index Fund (Series ID: S000071120)

| Class ID   | Class Name                   | Ticker Symbol   |
|:---|:---|:---|
| C000225786 | JNL Small Cap Index Fund (I) |  |

### JNL Bond Index Fund (Series ID: S000071121)

| Class ID   | Class Name              | Ticker Symbol   |
|:---|:---|:---|
| C000225787 | JNL Bond Index Fund (I) |  |

### JNL International Index Fund (Series ID: S000071122)

| Class ID   | Class Name                       | Ticker Symbol   |
|:---|:---|:---|
| C000225788 | JNL International Index Fund (I) |  |

### JNL Emerging Markets Index Fund (Series ID: S000071123)

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000225789 | JNL Emerging Markets Index Fund (I) |  |

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

**Supplement Dated February 25, 2026**

**To The Prospectus Dated April 28, 2025**

**JNL<sup>®</sup> Series Trust**

Please note that the changes below may impact your variable annuity and/or variable life product(s).

Unless otherwise noted, all changes are effective immediately.

*Effective April 27, 2026, all references to the fund listed below will be changed to the new fund name:*

 

---

| | |
|:---|:---|
| &nbsp;&nbsp;**Current Fund Name** | &nbsp;&nbsp;**New Fund Name** |
| &nbsp;&nbsp;JNL/Fidelity Institutional Asset Management<sup>®</sup> Total Bond Fund | &nbsp;&nbsp;JNL/Fidelity Institutional AM<sup>®</sup> Total Bond Fund |

---

*In the section "**Summary Overview of Each Fund**," under "**Principal Investment Strategies**," for the JNL/Mellon U.S. Stock Market Index Fund, JNL/Mellon World Index Fund, JNL/Mellon Industrials Sector Fund, JNL Bond Index Fund, JNL Emerging Markets Index Fund, JNL International Index Fund, JNL Mid Cap Index Fund, and JNL Small Cap Index Fund, after the last paragraph, please add the following:*

Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.

 

*In the section "**Summary Overview of Each Fund**," under "**Principal Risks of Investing in the Fund**," for the JNL/Mellon U.S. Stock Market Index Fund, JNL/Mellon World Index Fund, JNL/Mellon Industrials Sector Fund, JNL Bond Index Fund, JNL Emerging Markets Index Fund, JNL International Index Fund, JNL Mid Cap Index Fund, and JNL Small Cap Index Fund, please replace "Index investing risk" with the following:*

● *Index investing risk* –The Fund's indexing strategy does not attempt to manage volatility, use defensive strategies, or reduce the effects of any long-term periods of poor stock performance. Should the Fund engage in index sampling, the performance of the securities selected will not provide investment performance tracking that of the Index. Fund performance may not exactly correspond with the performance of the relevant index for a number of reasons, including, but not limited to: the timing of purchases and redemptions of the Fund's shares, changes in the composition of the index, and the Fund's expenses. Certain regulatory limitations, such as fund diversification requirements, may limit the ability of the Fund to completely replicate an index. The Fund may at times be invested in a non-diversified manner to the extent that the Index is also invested in a non-diversified manner.

 

*In the section "**Summary Overview of Each Fund**," under "**Principal Investment Strategies**," for the JNL/Mellon Dow<sup>SM</sup> Index Fund, JNL/Mellon Nasdaq<sup>®</sup> 100 Index Fund, JNL/Mellon Consumer Discretionary Sector Fund, JNL/Mellon Consumer Staples Sector Fund, JNL/Mellon Energy Sector Fund, JNL/Mellon Financial Sector Fund, JNL/Mellon Information Technology Sector Fund, JNL/Mellon Materials Sector Fund, and JNL/Mellon Utilities Sector Fund, please delete the last paragraph in the entirety and replace with the following:*

 

The Fund is classified as a "non-diversified" fund, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), which means that it may invest more of its assets in fewer issuers than "diversified" mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.

 

 

*In the section "**Additional Information About Each Fund**," under "**Principal Investment Strategies**," for the JNL/Mellon U.S. Stock Market Index Fund, JNL/Mellon World Index Fund, JNL/Mellon Industrials Sector Fund, JNL Bond Index Fund, JNL Emerging Markets Index Fund, JNL International Index Fund, JNL Mid Cap Index Fund, and JNL Small Cap Index Fund, after the last paragraph, please add the following:*

Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.

*In the section "**Additional Information About Each Fund**," under "**Principal Investment Strategies**," for the JNL/Mellon Dow<sup>SM</sup> Index Fund, JNL/Mellon Nasdaq<sup>®</sup> 100 Index Fund, JNL/Mellon Consumer Discretionary Sector Fund, JNL/Mellon Consumer Staples Sector Fund, JNL/Mellon Energy Sector Fund, JNL/Mellon Financial Sector Fund, JNL/Mellon Information Technology Sector Fund, JNL/Mellon Materials Sector Fund, and JNL/Mellon Utilities Sector Fund, please delete the last paragraph in the entirety and replace with the following:*

 

The Fund is classified as a "non-diversified" fund, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), which means that it may invest more of its assets in fewer issuers than "diversified" mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.

 

*This Supplement is dated February 25, 2026.*

**Supplement Dated February 25, 2026**

**To The Statement of Additional Information**

**Dated April 28, 2025**

**JNL<sup>®</sup> Series Trust**

Please note that the changes below may impact your variable annuity and/or variable life product(s).

Unless otherwise noted, all changes are effective immediately.

*Effective April 27, 2026, all references to the fund listed below will be changed to the new fund name:*

 

---

| | |
|:---|:---|
| &nbsp;&nbsp;**Current Fund Name** | &nbsp;&nbsp;**New Fund Name** |
| &nbsp;&nbsp;JNL/Fidelity Institutional Asset Management<sup>®</sup> Total Bond Fund | &nbsp;&nbsp;JNL/Fidelity Institutional AM<sup>®</sup> Total Bond Fund |

---

 

On page 125, in the section, "**Fundamental and Operating Policies**," under "**Fundamental Policies**," please delete the third paragraph in the entirety and replace with the following:

Although the JNL/Mellon Industrials Sector Fund, JNL/Mellon S&P 500 Index Fund, JNL S&P 500 Index Fund, JNL/Mellon U.S. Stock Market Index Fund, JNL/Mellon World Index Fund, JNL/Morningstar SMID Moat Focus Index Fund, JNL Bond Index Fund, JNL Emerging Markets Index Fund, JNL International Index Fund, JNL Mid Cap Fund, and JNL Small Cap Index Fund are diversified, each Fund may, at times, be invested in a non-diversified manner to the extent that its Index is also invested in a non-diversified manner.

On page 125, in the section, "**Fundamental and Operating Policies**," under "**Fundamental Policies**," please delete the fifth paragraph in the entirety and replace with the following:

With respect to the JNL/Mellon Consumer Discretionary Sector Fund, JNL/Mellon Consumer Staples Sector Fund, JNL/Mellon Dow<sup>SM</sup> Index Fund, JNL/Mellon Energy Sector Fund, JNL/Mellon Financial Sector Fund, JNL/Mellon Healthcare Sector Fund, JNL/Mellon Information Technology Sector Fund, JNL/Mellon Nasdaq<sup>®</sup> 100 Index Fund, JNL/Mellon Materials Sector Fund, JNL/Mellon Real Estate Sector Fund, JNL/Mellon Utilities Sector Fund, and JNL/Morningstar U.S. Sustainability Index Fund, each Fund intends to operate as non-diversified but may be diversified in approximately the same proportion as its benchmark index is diversified. For periods of time, the relevant index may become "diversified," as defined under the 1940 Act, solely as a result of changes in the composition of the index (for example, changes in the relative market capitalization or index weighting of one or more securities represented in the index). During those periods, the Fund will retain its non-diversified status.

*This Supplement is dated February 25, 2026.*