# EDGAR Filing Document

**Accession Number:** 0000933691
**File Stem:** 0000933691-26-000201
**Filing Date:** 2026-4
**Character Count:** 24238
**Document Hash:** 457a99539948057184907b9f1affbda6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000933691-26-000201.hdr.sgml**: 20260427

**ACCESSION NUMBER**: 0000933691-26-000201

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260427

**DATE AS OF CHANGE**: 20260427

**EFFECTIVENESS DATE**: 20260427

**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:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-87244
- **FILM NUMBER:** 26896586

**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/CAUSEWAY INTERNATIONAL VALUE SELECT FUND (Series ID: S000001724)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000004631 | JNL/CAUSEWAY INTERNATIONAL VALUE SELECT FUND (A) |  |
| C000067965 | JNL/CAUSEWAY INTERNATIONAL VALUE SELECT FUND (I) |  |

**Summary Prospectus – April 27, 2026**

**JNL/Causeway International Value Select Fund**

**Class A**

**Class I**

Before you invest, you may want to review the Fund's Prospectus, which contains more information about the Fund and its risks. You can find the Fund's Prospectus and other information about the Fund, including the Statement of Additional Information ("SAI") and most recent reports to shareholders, online at https://www.jackson.com/fund-literature.html. You can also get this information at no cost by calling 1-800-644-4565 (Annuity and Life Service Center), 1-800-599-5651 (NY Annuity and Life Service Center), 1-800-777-7779 (for contracts purchased through a bank or financial institution) or 1-888-464-7779 (for NY contracts purchased through a bank or financial institution), or by sending an email request to <u>ProspectusRequest@jackson.com</u>. The current Prospectus and SAI, both dated April 27, 2026, as amended, are incorporated by reference into (which means they legally are a part of) this Summary Prospectus.

**Investment Objective.** The investment objective of the Fund is to seek long-term growth of capital and income through investment primarily in larger capitalization equity securities.

**Expenses.** This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund.

The expenses do not reflect the expenses of the variable insurance contracts or the separate account through which you indirectly invest in the Fund, whichever may be applicable, and the total expenses would be higher if they were included.

You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

**Shareholder Fees<br> (fees paid directly from your investment)**<br> Not Applicable

---

| | |
|:---|:---|
| **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** | **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** |
| | **Class A** |
| Management Fee | 0.51% |
| Distribution and/or Service (12b-1) Fees | 0.30% |
| Other Expenses<sup>1</sup> | 0.15% |
| Total Annual Fund Operating Expenses | 0.96% |

---

<sup>1</sup> "Other Expenses" include an Administrative Fee of 0.15% which is payable to Jackson National Asset Management, LLC ("JNAM" or "Adviser").

---

| | |
|:---|:---|
| **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** | **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** |
| | **Class I** |
| Management Fee | 0.51% |
| Distribution and/or Service (12b-1) Fees | 0.00% |
| Other Expenses<sup>1</sup> | 0.15% |
| Total Annual Fund Operating Expenses | 0.66% |

---

<sup>1</sup> "Other Expenses" include an Administrative Fee of 0.15% which is payable to Jackson National Asset Management, LLC ("JNAM" or "Adviser").

**Expense Example.** This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. Also, this example does not reflect the expenses of the variable insurance contracts or the separate account through which you indirectly invest in the Fund, whichever may be applicable, and the total expenses would be higher if they were included. The table below shows the expenses you would pay on a $10,000 investment, assuming (1) 5% annual return; (2) redemption at the end of each time period; and (3) that the Fund operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

---

| | | | |
|:---|:---|:---|:---|
| **JNL/Causeway International Value Select Fund Class A** | **JNL/Causeway International Value Select Fund Class A** | **JNL/Causeway International Value Select Fund Class A** | **JNL/Causeway International Value Select Fund Class A** |
| 1 year | 3 years | 5 years | 10 years |
| $98 | $306 | $531 | $1178 |

---

---

| | | | |
|:---|:---|:---|:---|
| **JNL/Causeway International Value Select Fund Class I** | **JNL/Causeway International Value Select Fund Class I** | **JNL/Causeway International Value Select Fund Class I** | **JNL/Causeway International Value Select Fund Class I** |
| 1 year | 3 years | 5 years | 10 years |
| $67 | $211 | $368 | $822 |

---

**Portfolio Turnover (% of average value of portfolio).** The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in Annual Fund Operating Expenses or in the Expense Example above, affect the Fund's performance.

---

| | |
|:---|:---|
| **Period** | |
| 1/1/2025 - 12/31/2025 | 45% |

---

**Principal Investment Strategies.** The Fund invests primarily in common stocks of companies in developed countries outside the U.S. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of companies in a number of foreign countries and invests the majority of its total assets in companies that pay dividends or repurchase their shares. The Fund may invest up to 15% of its total assets in companies in emerging (less developed) markets.

When investing the Fund's assets, Causeway Capital Management LLC ("Sub-Adviser") follows a value style, performing fundamental research supplemented by quantitative analysis. Beginning with a universe of all publicly listed companies throughout the non-U.S. developed and emerging markets, the Sub-Adviser applies market capitalization and liquidity thresholds to reduce investment candidates to approximately 2,000 equity securities. The Sub-Adviser uses quantitative valuation screens to further narrow the potential investment candidates. The Sub-Adviser then performs fundamental research, which generally includes company-specific research, company visits, and interviews of suppliers, customers, competitors, industry analysts, and experts. The Sub-Adviser also applies a proprietary quantitative risk model to adjust return forecasts based on risk assessments. This process results in risk-adjusted return forecasts for a closely followed group of potential investment candidates. Using a value style means that the Sub-Adviser buys stocks that it believes have lower prices than their true worth. For example, stocks may be "undervalued" because the issuing companies are in industries that are currently out of favor with investors. However, even in those industries, certain companies may have high rates of growth of earnings and be financially sound.

The Sub-Adviser considers whether a company has each of the following value characteristics in purchasing or selling securities for the Fund:

&nbsp;&nbsp;&nbsp;&nbsp;· Low price-to-earnings ratio (stock price divided by earnings per share) relative to the sector;

&nbsp;&nbsp;&nbsp;&nbsp;· High yield (percentage rate of return paid on a stock in dividends and share repurchases) relative to the market;

&nbsp;&nbsp;&nbsp;&nbsp;· Low price-to-book value ratio (stock price divided by book value per share) relative to the market;

&nbsp;&nbsp;&nbsp;&nbsp;· Low price-to-cash flow ratio (stock price divided by net income plus noncash charges per share) relative to the market; and

&nbsp;&nbsp;&nbsp;&nbsp;· Financial strength.

Generally, price-to-earnings and yield are the most important factors.

The Fund generally invests in companies with market capitalizations greater than $5 billion at time of investment, but may invest in companies with any market capitalization. There are no limitations on the minimum amount or maximum amount that the Fund may invest in any particular country.

The Sub-Adviser determines a company's country by referring to: its stock exchange listing; where it is registered, organized or incorporated; where its headquarters are located; its Morningstar country classification; where it derives at least 50% of its revenues or profits from goods produced or sold, investments made, or services performed; or where at least 50% of its assets are located. These categories are designed to identify investments that are tied economically to, and subject to the risks of, investing outside the U.S. The Fund considers a country to be an emerging market if the country is included in the Morningstar Emerging Markets Index.

**Principal Risks of Investing in the Fund.** An investment in the Fund is not guaranteed. As with any mutual fund, the value of the Fund's shares will change, and you could lose money by investing in the Fund. The principal risks associated with investing in the Fund include:

· *Market risk* – Portfolio securities may decline in value due to factors affecting securities markets generally, such as
real or perceived adverse economic, political, or regulatory conditions, inflation, changes in interest or currency rates or adverse investor
sentiment, public health issues, including widespread disease and virus epidemics or pandemics, war, terrorism or natural disasters, among
others. Adverse market conditions may be prolonged and may not have the same impact on all types of securities. The values of securities
may fall due to factors affecting a particular issuer, industry or the securities market as a whole.

· *Foreign securities risk* – Investments in, or exposure to, foreign securities involve risks not typically associated with
U.S. investments. These risks include, among others, adverse fluctuations in foreign currency values, possible imposition of foreign

withholding or other taxes on income payable on the securities, as well as adverse political, social and economic developments, such as political upheaval, acts of terrorism, financial troubles, sanctions or the threat of new or modified sanctions, or natural disasters. Many foreign securities markets, especially those in emerging market countries, are less stable, smaller, less liquid, and less regulated than U.S. securities markets, and the costs of trading in those markets is often higher than in U.S. securities markets. There may also be less publicly available information about issuers of foreign securities compared to issuers of U.S. securities. In addition, the economies of certain foreign markets may not compare favorably with the economy of the United States with respect to issues such as growth of gross national product, reinvestment of capital, resources and balance of payments position.

· *Equity securities risk* – Common and preferred stocks represent equity ownership in a company. Stock markets are volatile,
and equity securities generally have greater price volatility than fixed-income securities. The price of equity or equity-related securities
will fluctuate and can decline and reduce the value of a portfolio investing in equity or equity-related securities. The value of equity
or equity-related securities purchased or held by the Fund could decline if the financial condition of the companies the Fund invests
in decline or if overall market and economic conditions deteriorate. They may also decline due to factors that affect a particular industry
or industries, such as labor shortages or an increase in production costs and competitive conditions within an industry. In addition,
they may decline due to general market conditions that are not specifically related to a company or industry, such as real or perceived
adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates or generally
adverse investor sentiment.

· *Managed portfolio risk* – As an actively managed portfolio, the Fund's portfolio manager(s) make decisions to buy and
sell holdings in the Fund's portfolio. Because of this, the value of the Fund's investments could decline because the financial
condition of an issuer may change (due to such factors as management performance, reduced demand or overall market changes), financial
markets may fluctuate or overall prices may decline, the Sub-Adviser's investment techniques could fail to achieve the Fund's investment
objective or negatively affect the Fund's investment performance, or legislative, regulatory, or tax developments may affect the
investment techniques available to the Sub-Adviser of the Fund. There is no guarantee that the investment objective of the Fund will be
achieved.

· *Company risk* **–** Investments in U.S. and/or foreign-traded equity securities may fluctuate more than the values
of other types of securities in response to changes in a particular company's financial condition.

· *Stock risk –* Stock markets may experience significant short-term volatility and may fall sharply at times. Different
stock markets may behave differently from each other and U.S. stock markets may move in the opposite direction from one or more foreign
stock markets. The prices of individual stocks generally do not all move in the same direction at the same time and a variety of factors
can affect the price of a particular company's stock.

· *Investment style risk* – The returns from a certain investment style may be lower than the returns from the overall stock
market. Value stocks may not increase in price if other investors fail to recognize the company's value or the factors that are
expected to increase the price of the security do not occur. Over market cycles, different investment styles may sometimes outperform
other investment styles (for example, growth investing may outperform value investing).

· *Dividend-paying stock risk* – Dividend-paying stocks may underperform non-dividend paying stocks (and the stock market
as a whole) over any period of time. The prices of dividend-paying stocks may decline as interest rates increase. In addition, issuers
of dividend-paying stocks typically have discretion to defer or stop paying dividends. If the dividend-paying stocks held by an account
reduce or stop paying dividends, the account's ability to generate income may be adversely affected.

· *Currency risk* **–** Investments in foreign currencies, securities that trade in or receive revenues in foreign currencies,
or derivatives that provide exposure to foreign currencies are subject to the risk that those currencies may decline in value or, in the
case of hedging positions, that the currency may decline in value relative to the currency being hedged. Currency exchange rates can be
volatile and may be affected by a number of factors, such as the general economics of a country, the actions (or inaction) of U.S. and
foreign governments or central banks, the imposition of currency controls, and speculation. A decline in the value of a foreign currency
versus the U.S. dollar reduces the value in U.S. dollars of investments denominated in that foreign currency.

· *Emerging markets and less developed countries risk* **–** Emerging market and less developed countries generally are
located in Asia, the Middle East, Eastern Europe, Central and South America and Africa. Investments in, or exposure to, securities that
are tied economically to emerging market and less developed countries are subject to all of the risks of investments in, or exposure to,
foreign securities, generally to a greater extent than in developed markets, among other risks. Investments in securities that are tied
economically to emerging markets involve greater risk from economic and political systems that typically are less developed, and likely
to be less stable, than those in more advanced countries. The Fund also will be subject to the risk of adverse foreign currency rate fluctuations.
Emerging market and less developed countries may also have economies that are predominantly based on only a few industries or dependent
on revenues from particular commodities. The risks of nationalization, expropriation or other confiscation of assets of non-U.S. issuers
is also greater in emerging and less developed countries. As a result of these risks, investments in securities tied economically to emerging
markets tend to be more volatile than investments in securities of developed countries.

· *Quantitative strategy risk* – Securities identified using quantitative analysis can perform differently from the market
as a whole as a result of the factors used in the analysis, the weight placed on those factors, changes in a factor's historical trends,
or for reasons included in the analysis. The factors used in quantitative analysis and the weights placed on those factors may not predict
a

security's value, and the effectiveness of the factors can change over time. These changes may not be reflected in the current quantitative model.

· *Clearance and settlement risk* – Foreign securities markets have different clearance and settlement procedures, and in
certain markets there have been times when settlements have been unable to keep pace with the volume of securities transactions, making
it difficult to conduct such transactions. This risk may be magnified in emerging markets because settlement systems may be less organized,
creating a risk that settlements may be delayed or lost because of failures or defects in such systems.

<br> **Performance.** The performance information shown provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns compared with those of a broad-based securities market index and an additional index that the Adviser believes more closely reflects the market segments in which the Fund invests. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future.

The returns shown in the bar chart and table do not include charges that will be imposed by variable insurance products. If these amounts were reflected, returns would be less than those shown.

**Annual Total Returns as of December 31**

**Class A**

![PerformanceBarChartData(2016:0.01, 2017:28.47, 2018:-17.51, 2019:18.97, 2020:5.89, 2021:8.5, 2022:-7.05, 2023:28.35, 2024:4.49, 2025:43.1)](image_001.jpg)

**Best Quarter (ended 12/31/2020):** 26.84%; **Worst Quarter (ended 3/31/2020):** -31.51%

**Annual Total Returns as of December 31**

**Class I**

![PerformanceBarChartData(2016:0.12, 2017:28.84, 2018:-17.26, 2019:19.3, 2020:6.23, 2021:8.76, 2022:-6.74, 2023:28.79, 2024:4.82, 2025:43.44)](image_002.jpg)

**Best Quarter (ended 12/31/2020):** 26.96%; **Worst Quarter (ended 3/31/2020):** -31.50%

---

| | | | |
|:---|:---|:---|:---|
| **Average Annual Total Returns as of 12/31/2025** | | | |
| | **1 year** | **5 year** | **10 year** |
| JNL/Causeway International Value Select Fund (Class A) | 43.10% | 14.12% | 9.96% |
| Morningstar Developed Markets ex-North America Target Market Exposure Index (Net) (reflects no deduction for fees, expenses, or taxes) | 31.61% | 9.00% | 8.27% |
| Morningstar Developed Markets ex-North America Value Target Market Exposure Index (Net) (reflects no deduction for fees, expenses, or taxes) | 41.10% | 13.23% | 8.73% |

---

---

| | | | |
|:---|:---|:---|:---|
| **Average Annual Total Returns as of 12/31/2025** | | | |
| | **1 year** | **5 year** | **10 year** |
| JNL/Causeway International Value Select Fund (Class I) | 43.44% | 14.46% | 10.26% |
| Morningstar Developed Markets ex-North America Target Market Exposure Index (Net) (reflects no deduction for fees, expenses, or taxes) | 31.61% | 9.00% | 8.27% |
| Morningstar Developed Markets ex-North America Value Target Market Exposure Index (Net) (reflects no deduction for fees, expenses, or taxes) | 41.10% | 13.23% | 8.73% |

---

**Portfolio Management.**

**Investment Adviser to the Fund:**<br> Jackson National Asset Management, LLC ("JNAM")

**Sub-Adviser:** <br> Causeway Capital Management LLC ("Causeway")

**Portfolio Managers:**

---

| | | |
|:---|:---|:---|
| **Name:** | **Joined Fund Management Team In:** | **Title:** |
| Sarah Ketterer | September 2015 | Chief Executive Officer, Causeway |
| Harry Hartford | September 2015 | President, Causeway |
| Jonathan Eng | September 2015 | Portfolio Manager, Causeway |
| Conor Muldoon, CFA | September 2015 | Portfolio Manager, Causeway |
| Alessandro Valentini, CFA | September 2015 | Portfolio Manager, Causeway |
| Ellen Lee | September 2015 | Portfolio Manager, Causeway |
| Steven Nguyen, CFA | January 2019 | Portfolio Manager, Causeway |
| Brian Cho | January 2021 | Portfolio Manager, Causeway |

---

**Purchase and Redemption of Fund Shares** 

Only separate accounts of Jackson National Life Insurance Company ("Jackson National") or Jackson National Life Insurance Company of New York ("Jackson National NY") and series, including fund of funds, of registered investment companies in which either or both of those insurance companies invest may purchase shares of the Fund. You may invest indirectly in the Fund through your purchase of a variable annuity or life insurance contract issued by a separate account of Jackson National or Jackson National NY that invests directly, or through a fund of funds, in this Fund. Any minimum initial or subsequent investment requirements and redemption procedures are governed by the applicable separate account through which you invest indirectly.

This Fund serves as an underlying investment by insurance companies, affiliated investment companies, and retirement plans for funding variable annuity and life insurance contracts and retirement plans.

**Tax Information**

The Fund's shareholders are separate accounts of Jackson National or Jackson National NY and mutual funds owned directly or indirectly by such separate accounts. Accordingly, the Fund's dividends and other distributions generally are not taxable to you, the contract owner or plan participant, but no further discussion is included about the U.S. federal income tax consequences to you. You should consult the prospectus of the appropriate separate account or description of the plan for a discussion of the U.S. federal income tax consequences to you of your contract, policy or plan.

**Payments to Broker-Dealers and Financial Intermediaries**

If you invest in the Fund under a variable insurance contract or a plan that offers a variable insurance contract as a plan option through a broker-dealer or other financial intermediary (such as a financial institution), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the

broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's Website for more information.