JNL Series Trust

04/27/2026 | Press release | Distributed by Public on 04/27/2026 08:12

Summary Prospectus by Investment Company (Form 497K)

Summary Prospectus - April 27, 2026

JNL/T. Rowe Price Value 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 [email protected]. 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 provide long-term capital appreciation by investing in common stocks believed to be undervalued. Income is a secondary objective.

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
(fees paid directly from your investment)

Not Applicable

Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)
Class A
Management Fee 0.45%
Distribution and/or Service (12b-1) Fees 0.30%
Other Expenses1 0.10%
Total Annual Fund Operating Expenses2 0.85%
1 "Other Expenses" include an Administrative Fee of 0.10% which is payable to Jackson National Asset Management, LLC ("JNAM" or "Adviser").
2 Expense information has been restated to reflect current fees.
Annual Fund Operating Expenses
(Expenses that you pay each year as a percentage of the value of your investment)
Class I
Management Fee 0.45%
Distribution and/or Service (12b-1) Fees 0.00%
Other Expenses1 0.10%
Total Annual Fund Operating Expenses2 0.55%
1 "Other Expenses" include an Administrative Fee of 0.10% which is payable to Jackson National Asset Management, LLC ("JNAM" or "Adviser").
2 Expense information has been restated to reflect current fees.

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. The example also assumes that the contractual expense limitation agreement is discontinued after one year. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

JNL/T. Rowe Price Value Fund Class A
1 year 3 years 5 years 10 years
$87 $271 $471 $1,049
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JNL/T. Rowe Price Value Fund Class I
1 year 3 years 5 years 10 years
$56 $176 $307 $689

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 55 %

Principal Investment Strategies. At least 65% of the Fund's total assets are normally invested in common stocks that T. Rowe Price Associates, Inc. ("Sub-Adviser") regards as undervalued. Stock holdings are expected to consist primarily of large-company stocks, but may also include mid-cap and small-cap companies. In taking a value approach to investment selection, the Sub-Adviser's research team seeks to identify companies that appear to be undervalued by various measures and may be temporarily out of favor, but which the Sub-Adviser believes have good prospects for capital appreciation.

The Fund may invest up to 25% of its total assets (excluding reserves) in foreign securities, including securities that are economically tied to emerging markets.

In keeping with the Fund's objective, it may also invest in other securities and use futures, options, swaps, and other derivative-type instruments.

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:

· 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).
· Large-capitalization investing risk - Large-capitalization stocks as a group could fall out of favor with the market, which may cause the Fund to underperform funds that focus on other types of stocks.
· 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.
· 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.
· 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.
· Mid-capitalization and small-capitalization investing risk - The securities of mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies and may be subject to more abrupt or erratic price movements. Securities of such issuers may lack sufficient market liquidity to enable a Fund to effect sales at an advantageous time or without a substantial drop in price. Both mid-capitalization and small-capitalization companies often have narrower markets and more limited managerial and financial resources than larger, more established companies. As a result, their performance can be more volatile and they face greater risk of business failure, which could increase the volatility of a Fund's portfolio. Generally, the smaller the company size, the greater these risks become.
· Investment strategy risk - The Sub-Adviser uses the principal investment strategies and other investment strategies to seek to achieve the Fund's investment objective. Investment decisions made by the Sub-Adviser in accordance with these investment
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strategies may not produce the returns the Sub-Adviser expected, and may cause the Fund's shares to decline in value or may cause the Fund to underperform other funds with similar investment objectives.

· Derivatives risk - Investments in derivatives, which are financial instruments whose value depends on, or is derived from, the value of underlying assets, reference rates, or indices, can be highly volatile and may be subject to transaction costs and certain risks, such as unanticipated changes in securities prices and global currency investment. Derivatives also are subject to leverage risk, liquidity risk, interest rate risk, market risk, counterparty risk, and credit risk. They also involve the risk of mispricing or improper valuation and the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, interest rate or index. Gains or losses from derivatives can be substantially greater than the derivatives' original cost.
· 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.
· Accounting risk - The Fund bases investment selections, in part, on information drawn from the financial statements of issuers. Financial statements may not be accurate, may reflect differing approaches with respect to auditing and reporting standards and may affect the ability of the Fund's investment manager to identify appropriate investment opportunities.


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 m ore closely reflects the market segments in which the Fund invests. Performance results include the effect of expense waiver/reduction arrangements for some or all of the periods shown. If such arrangements had not been in place, performance for those periods would have been lower. 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

Best Quarter (ended 12/31/2020): 18.54%; Worst Quarter (ended 3/31/2020): -25.37%

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Annual Total Returns as of December 31

Class I

Best Quarter (ended 12/31/2020): 18.67%; Worst Quarter (ended 3/31/2020): -25.30%

Average Annual Total Returns as of 12/31/2025
1 year 5 year 10 year
JNL/T. Rowe Price Value Fund (Class A) 12.00 % 10.54 % 10.56 %
Morningstar US Target Market Exposure Index (reflects no deduction for fees, expenses, or taxes) 17.80 % 13.88 % 14.77 %
Morningstar US Large-Mid Cap Broad Value Index (reflects no deduction for fees, expenses, or taxes) 18.83 % 13.38 % 12.50 %
Average Annual Total Returns as of 12/31/2025
1 year 5 year 10 year
JNL/T. Rowe Price Value Fund (Class I) 12.35 % 10.87 % 10.88 %
Morningstar US Target Market Exposure Index (reflects no deduction for fees, expenses, or taxes) 17.80 % 13.88 % 14.77 %
Morningstar US Large-Mid Cap Broad Value Index (reflects no deduction for fees, expenses, or taxes) 18.83 % 13.38 % 12.50 %

Portfolio Management.

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

Sub-Adviser:
T. Rowe Price Associates, Inc. ("T. Rowe Price")

Portfolio Manager:

Name: Joined Fund Management Team In: Title:
Ryan Hedrick, CFA January 2023 Chair of Investment Advisory Committee, T. Rowe Price

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.

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Tax Information

The Fund expects to be treated as a partnership for U.S. federal income tax purposes, and does not expect to make regular distributions (other than in redemption of Fund shares) to shareholders, which generally are the participating insurance companies investing in the Fund through separate accounts of Jackson National or Jackson National NY and mutual funds owned directly or indirectly by such separate accounts. 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.

JNL Series Trust published this content on April 27, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on April 27, 2026 at 14:14 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]