# EDGAR Filing Document

**Accession Number:** 0000892538
**File Stem:** 0001193125-26-194848
**Filing Date:** 2026-4
**Character Count:** 37443
**Document Hash:** 5bff15ee26292f3eca11098eb308cff9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-194848.hdr.sgml**: 20260430

**ACCESSION NUMBER**: 0001193125-26-194848

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260430

**DATE AS OF CHANGE**: 20260430

**EFFECTIVENESS DATE**: 20260430

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SUNAMERICA SERIES TRUST
- **CENTRAL INDEX KEY:** 0000892538

**ORGANIZATION NAME:**
- **EIN:** 137002445
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0131
- **LEGAL ENTITY IDENTIFIER:** 549300E40BQMHI2LOX26

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-52742
- **FILM NUMBER:** 26920844

**BUSINESS ADDRESS:**
- **STREET 1:** 5300 MEMORIAL DRIVE
- **STREET 2:** SUITE 1150
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77007
- **BUSINESS PHONE:** 551-235-3560

**MAIL ADDRESS:**
- **STREET 1:** ONE WORLD TRADE CENTER, SUITE J
- **STREET 2:** 49TH FL
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10007

## Series and Classes Contracts Data

### SA Goldman Sachs Multi-Asset Insights Portfolio (Series ID: S000059203)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000193967 | Class 1      |  |
| C000193968 | Class 3      |  |

**Summary Prospectus**

**May 1, 2026**

**SunAmerica Series Trust**

**SA Goldman Sachs Multi-Asset Insights Portfolio**

**(Class 1 and Class 3 Shares)**

SunAmerica Series Trust's [Statutory Prospectus and Statement of Additional Information](https://www.sec.gov/ix?doc=/Archives/edgar/data/0000892538/000119312526182445/d67063d485bpos.htm), each dated May 1, 2026, as amended and supplemented from time to time, and the [most recent shareholder reports](https://www.sec.gov/ix?doc=/Archives/edgar/data/0000892538/000119312526150593/8de95b0a53ad87c.htm) are incorporated into and made part of this Summary Prospectus by reference. The Portfolio is offered only to the separate accounts of certain life insurance companies and to other mutual funds. This Summary Prospectus is not intended for use by other investors.

Before you invest, you may want to review SunAmerica Series Trust's Statutory Prospectus, which contains more information about the Portfolio and its risks. You can find the Statutory Prospectus and the above-incorporated information online at https://venerable.onlineprospectus.net/funds/sast_sst/. You can also get this information at no cost by calling (800) 445-7862 or by sending an e-mail request to fundprospectus@corebridgefinancial.com.

The Securities and Exchange Commission has not approved or disapproved these securities, nor has it determined that this Summary Prospectus is accurate or complete. It is a criminal offense to state otherwise.

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**Investment Goal**

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The Portfolio's investment goal is to seek capital appreciation and income while managing portfolio volatility.

**Fees and Expenses of the Portfolio**

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This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Portfolio. **The table and the example below do not reflect the separate account fees charged in the variable annuity or variable life insurance policy ("Variable Contracts") in which the Portfolio is offered.** If separate account fees were shown, the Portfolio's annual operating expenses would be higher. Please see your Variable Contract prospectus for more details on the separate account fees.

**<u>Annual Portfolio Operating Expenses</u>** (expenses that you pay each year as a percentage of the value of your investment)

---

| | | | | |
|:---|:---|:---|:---|:---|
|  |  | **Class 1** |  | **Class 3** |
| Management Fees |  | 0.70<br> %<br>|  | 0.70<br> %<br>|
| Service (12b-1) Fees |  |  |  | 0.25<br> %<br>|
| Other Expenses |  | 0.44<br> %<br>|  | 0.45<br> %<br>|
| &nbsp;&nbsp;&nbsp; Interest Expenses | 0.02<br> %<br>|  | 0.02<br> %<br>|  |
| &nbsp;&nbsp;&nbsp; Miscellaneous Other Expenses | 0.42<br> %<br>|  | 0.43<br> %<br>|  |
| Acquired Fund Fees and Expenses<sup>1</sup> |  | 0.03<br> %<br>|  | 0.03<br> %<br>|
| &nbsp;&nbsp;&nbsp; Total Annual Portfolio <br> Operating Expenses Before Fee <br> Waivers and/or Expense <br> Reimbursements<sup>1</sup><br>|  | 1.17<br> %<br>|  | 1.43<br> %<br>|
| &nbsp;&nbsp;&nbsp; Fee Waivers and/or Expense <br> Reimbursements<sup>2</sup><br>|  | 0.31<br> %<br>|  | 0.32<br> %<br>|
| &nbsp;&nbsp;&nbsp; Total Annual Portfolio <br> Operating Expenses After Fee <br> Waivers and/or Expense <br> Reimbursements<sup>2</sup><br>|  | 0.86<br> %<br>|  | 1.11<br> %<br>|

---

<sup>1</sup>

The Total Annual Portfolio Operating Expenses Before Fee Waivers and/or Expense Reimbursements do not correlate to the ratio of expenses to average net assets provided in the Financial Highlights table which reflects operating expenses of the Portfolio and do not include Acquired Fund Fees and Expenses.

<sup>2</sup>

Pursuant to an Expense Limitation Agreement, SunAmerica Asset Management, LLC ("SunAmerica") has contractually agreed to waive its fees and/or reimburse expenses to the extent that the Total Annual Portfolio Operating Expenses of Class 1 and Class 3 shares exceed 0.81% and 1.06%, respectively, of the Portfolio's average daily net assets. For purposes of the Expense Limitation Agreement, "Total Annual Portfolio Operating Expenses" shall not include extraordinary expenses (*i.e.*, expenses that are unusual in nature and infrequent in occurrence, such as litigation), or acquired fund fees and expenses, brokerage commissions and other transactional expenses relating to the purchase and sale of portfolio securities, interest, taxes and governmental fees, and other expenses not incurred in the ordinary course of business of SunAmerica Series Trust (the "Trust") on behalf of the Portfolio. Any waivers and/or reimbursements made by SunAmerica with respect to the Portfolio are subject to recoupment from the Portfolio within two years after the occurrence of the waivers and/or reimbursements, provided that the recoupment does not cause the expense ratio of the share class to exceed the lesser of (a) the expense limitation in effect at the time the waivers and/or reimbursements occurred, or (b) the current expense limitation of that share class. This agreement may be modified or discontinued prior to April 30, 2027, only with the approval of the Board of Trustees of the Trust, including a majority of the trustees who are not "interested persons" of the Trust as defined in the Investment

Company Act of 1940, as amended.

***<u>Expense Example</u>***

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio's operating expenses remain the same (except that the Example incorporates any applicable fee waiver and/or expense limitation arrangements for only the first year). The Example does not reflect charges imposed by the

SunAmerica Series Trust

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**SA Goldman Sachs Multi-Asset Insights Portfolio**

Variable Contract. If the separate account fees were reflected, the expenses would be higher. See the Variable Contract prospectus for information on such charges. Although your actual costs may be higher or lower, based on these assumptions and the net expenses shown in the fee table, your costs would be:

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| Class 1 | $88 | &nbsp;&nbsp; $341 | &nbsp;&nbsp; $614 | &nbsp;&nbsp; $1393 |
| Class 3 | 113 | &nbsp;&nbsp; 421 | &nbsp;&nbsp; 751 | &nbsp;&nbsp; 1686 |

---

***<u>Portfolio Turnover</u>*** 

The Portfolio 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 portfolio operating expenses or in the Example, affect the Portfolio's performance.

During the most recent fiscal year, the Portfolio's portfolio turnover rate was 154% of the average value of its portfolio.

**Principal Investment Strategies of the Portfolio**

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The Portfolio seeks to achieve its investment goal through strategically and dynamically allocating its assets to various equity and fixed income asset classes. Under normal market conditions, the Portfolio targets an allocation of approximately 70% of its assets to equity exposure and approximately 30% of its assets to fixed income exposure, although the Portfolio's equity exposure may range from approximately 60%-80% of its net assets and its allocation to fixed income exposure may range from approximately 20%-40% of its net assets.

The equity securities in which the Portfolio intends to invest, or obtain exposure to, include common stock, preferred stock, rights and warrants, and depositary receipts relating to equity securities. The Portfolio may invest in, or obtain exposure to, equity securities of U.S. and non-U.S. issuers of any market capitalization range, including securities of issuers located in emerging markets. The Portfolio's ability to invest in both U.S. and non-U.S. securities allows it to diversify its assets across different geographic regions. The foreign equity securities in which the Portfolio intends to invest, or obtain exposure to, may be denominated in U.S. dollars or foreign currencies and may be currency hedged or unhedged. The Portfolio may also obtain exposure to equity securities by investing in exchange-traded funds ("ETFs").

The fixed income securities in which the Portfolio intends to invest, or obtain exposure to, include corporate debt instruments, U.S. government securities, high-yield debt

securities (junk bonds), convertible notes, money market instruments and/or cash or cash equivalents. The Portfolio may also obtain exposure to fixed income securities by investing in ETFs.

The Portfolio may invest in derivatives, such as equity index futures, interest rate futures, interest rate swaps, credit default swaps and forward foreign currency exchange contracts for hedging and non-hedging purposes, as well as to increase the return on its portfolio investments.

The Portfolio will adjust its equity/fixed income exposure +/- 10%, as described above, based on market and macroeconomic views of Goldman Sachs Asset Management L.P. ("GSAM"), the Portfolio's subadviser. GSAM will implement such adjustment by reallocating the Portfolio's investments in equity and fixed income securities and/or by investing in ETFs and/or derivatives.

In managing the Portfolio, GSAM develops a strategic allocation across the various asset classes by budgeting or allocating portfolio risk across a set of asset allocation risk factors, including, but not limited to, market cap, interest rate, emerging markets, credit, equity style, momentum and active risk. The resulting strategic asset allocation is implemented using a range of bottom-up security selection strategies across equity and fixed income asset classes. Within equities, securities are selected using fundamental research and a variety of quantitative techniques primarily based on the following investment themes, including, among others, Fundamental Mispricings, High Quality Business Models, Sentiment Analysis and Market Themes & Trends. Within these models, GSAM may utilize artificial intelligence techniques, such as natural language processing and machine learning, to, among other things, help extract information from various textual or audio datasets. Fundamental Mispricings seeks to identify high-quality businesses trading at a fair price, which the Investment Adviser believes leads to strong performance over the long-run. High Quality Business Models seeks to identify companies that are generating high quality revenues with sustainable business models and aligned management incentives. Sentiment Analysis seeks to identify stocks experiencing improvements in their overall market sentiment. Market Themes and Trends seeks to identify companies positively positioned to benefit from themes and trends in the market and macroeconomic environment. GSAM may make investment decisions that deviate from those generated by its proprietary models, at its discretion. In addition, GSAM may, in its discretion, make changes to its quantitative techniques, or use other quantitative techniques that are based on its proprietary research.

SunAmerica Series Trust

------

**SA Goldman Sachs Multi-Asset Insights Portfolio**

The Portfolio places an emphasis on managing risk relative to its benchmark index, which is comprised of the following: 38.5% S&P 500<sup>®</sup> Index, 3.5% S&P Midcap 400<sup>®</sup> Index, 3.5% Russell 2000<sup>®</sup> Index, 24.5% MSCI EAFE Index (net) and 30% Bloomberg U.S. Government/Credit Index (the "Blended Index"). To manage the Portfolio's risk relative to the Blended Index, GSAM intends to dynamically adjust the Portfolio's risk exposure by making passive index investments through the use of equity and interest rate futures and ETFs, if required by the Portfolio's risk management parameters. These risk management parameters include restrictions designed to limit how far the Portfolio's returns are permitted to deviate from those of the Blended Index. Such restrictions may result in the Portfolio having returns that track the Blended Index more consistently and more closely than would otherwise be the case. These restrictions may prevent a significant deviation from the returns of the Blended Index, but may also limit the Portfolio's ability to outperform the returns of the Blended Index.

The subadviser may engage in frequent and active trading of portfolio securities.

**Principal Risks of Investing in the Portfolio**

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As with any mutual fund, there can be no assurance that the Portfolio's investment goal will be met or that the net return on an investment in the Portfolio will exceed what could have been obtained through other investment or savings vehicles. Shares of the Portfolio are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation. If the value of the assets of the Portfolio goes down, you could lose money.

The following is a summary of the principal risks of investing in the Portfolio.

**Active Trading Risk.** The Portfolio may engage in frequent trading of securities to achieve its investment goal. Active trading may result in high portfolio turnover and correspondingly greater brokerage commissions and other transaction costs, which will be borne directly by the Portfolio and could affect its performance. During periods of increased market volatility, active trading may be more pronounced.

**Asset Allocation Risk.** The Portfolio's ability to achieve its investment goal depends in part on the subadviser's skill in determining the Portfolio's asset class allocations. Although allocation among different asset classes generally reduces risk, the risk remains that the subadviser may favor an asset class that performs poorly relative to other asset classes.

**Equity Securities Risk.** The Portfolio invests principally in equity securities and is therefore subject to the risk that stock prices will fall and may underperform other asset classes. Individual stock prices fluctuate from day-to-day and may decline significantly.

**Large-Cap Companies Risk.** Large-cap companies tend to be less volatile than companies with smaller market capitalizations. In exchange for this potentially lower risk, the Portfolio's value may not rise as much as the value of portfolios that emphasize smaller companies. Larger, more established companies may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes. Larger companies also may not be able to attain the high growth rate of successful smaller companies, particularly during extended periods of economic expansion.

**Small- and Mid-Cap Companies Risk.** Companies with smaller market capitalizations (particularly under $1 billion depending on the market) tend to be at early stages of development with limited product lines, operating histories, market access for products, financial resources, access to new capital, or depth in management. It may be difficult to obtain reliable information and financial data about these companies. Consequently, the securities of smaller companies may not be as readily marketable and may be subject to more abrupt or erratic market movements than companies with larger capitalizations. Securities of medium-sized companies are also subject to these risks to a lesser extent.

**Foreign Investment Risk.** The Portfolio's investments in the securities of foreign issuers or issuers with significant exposure to foreign markets involve additional risk. Foreign countries in which the Portfolio invests may have markets that are less liquid, less regulated and more volatile than U.S. markets. The value of the Portfolio's investments may decline because of factors affecting the particular issuer as well as foreign markets and issuers generally, such as unfavorable government actions, and political or financial instability and other conditions or events (including, for example, military confrontations, war, terrorism, sanctions, disease/virus, outbreaks and epidemics). Lack of relevant data and reliable public information may also affect the value of these securities. The risks of foreign investments are heightened when investing in issuers in emerging market countries.

**Foreign Currency Risk.** The value of the Portfolio's foreign investments may fluctuate due to changes in currency exchange rates. A decline in the value of foreign currencies relative to the U.S. dollar generally can be

SunAmerica Series Trust

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**SA Goldman Sachs Multi-Asset Insights Portfolio**

expected to depress the value of the Portfolio's non-U.S. dollar-denominated securities.

**Emerging Markets Risk.** Risks associated with investments in emerging markets may include: delays in settling portfolio securities transactions; currency and capital controls; greater sensitivity to interest rate changes; pervasive corruption and crime; exchange rate volatility; inflation, deflation or currency devaluation; violent military or political conflicts; confiscations and other government restrictions by the United States or other governments; and government instability. As a result, investments in emerging market securities tend to be more volatile than investments in developed countries.

**Preferred Stock Risk.** Preferred stockholders' liquidation rights are subordinate to the company's debt holders and creditors. If interest rates rise, the fixed dividend on preferred stocks may be less attractive and the price of preferred stocks may decline. Deferred dividend payments by an issuer of preferred stock could have adverse tax consequences for the Portfolio and may cause the preferred stock to lose substantial value.

**Warrants and Rights Risk.** Warrants and rights can provide a greater potential for profit or loss than an equivalent investment in the underlying security. Warrants and rights have no voting rights, pay no dividends and have no rights with respect to the assets of the issuer other than a purchase option. Prices of warrants and rights do not necessarily move in tandem with the prices of the underlying securities and therefore are highly volatile and speculative investments. Warrants and rights may lack a liquid secondary market for resale.

**Depositary Receipts Risk.** Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. The issuers of unsponsored depositary receipts are not obligated to disclose information that is considered material in the United States. Therefore, there may be less information available regarding the issuers and there may not be a correlation between such information and the market value of the depositary receipts. Certain depositary receipts are not listed on an exchange and therefore are subject to illiquidity risk.

**Bonds Risk.** The value of your investment in the Portfolio may go up or down in response to changes in interest rates or defaults (or even the potential for future defaults) by bond issuers. Fixed income securities may be subject to volatility due to changes in interest rates.

**Credit Risk.** Credit risk applies to most debt securities, but is generally not a factor for obligations backed by the "full faith and credit" of the U.S. Government. The Portfolio

could lose money if the issuer of a debt security is unable or perceived to be unable to pay interest or to repay principal when it becomes due. <br>An issuer with a lower credit rating will be more likely than a higher rated issuer to default or otherwise become unable to honor its financial obligations. Issuers with low credit ratings typically issue junk bonds. In addition to the risk of default, junk bonds may be more volatile, less liquid, more difficult to value and more susceptible to adverse economic conditions or investor perceptions than other bonds.

**Interest Rate Risk.** Fixed income securities may be subject to volatility due to changes in interest rates. The value of fixed-income securities may decline when interest rates go up or increase when interest rates go down. The interest earned on fixed-income securities may decline when interest rates go down or increase when interest rates go up. Duration is a measure of interest rate risk that indicates how price-sensitive a bond is to changes in interest rates. Longer-term and lower coupon bonds tend to be more sensitive to changes in interest rates. For example, a bond with a duration of three years will decrease in value by approximately 3% if interest rates increase by 1%. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility, and could negatively impact the Portfolio's performance. Any future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates.

**U.S. Government Obligations Risk.** U.S. Treasury obligations are backed by the "full faith and credit" of the U.S. Government and generally have negligible credit risk. Securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. Government.

**Junk Bonds Risk.** The Portfolio may invest significantly in junk bonds, which are considered speculative. Junk bonds carry a substantial risk of default or changes in the issuer's creditworthiness, or they may already be in default at the time of purchase.

**Money Market Securities Risk.** This is both a direct and indirect risk of investing in the Portfolio. An investment in the Portfolio is subject to the risk that the value of its investments in high-quality short-term obligations ("money market securities") may be subject to changes in interest rates, changes in the rating of any money market security and in the ability of an issuer to make payments of interest and principal.

SunAmerica Series Trust

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**SA Goldman Sachs Multi-Asset Insights Portfolio**

**ETF Risk.** Most ETFs are investment companies whose shares are purchased and sold on a securities exchange. An investment in an ETF generally presents the same primary risks as an investment in a conventional fund (*i.e.*, one that is not exchange-traded) that has the same investment objectives, strategies and policies. However, ETFs are subject to the following risks that do not apply to conventional mutual funds: (i) the market price of an ETF's shares may trade at a premium or a discount to its net asset value; (ii) an active trading market for an ETF's shares may not develop or be maintained; and (iii) there is no assurance that the requirements of the exchange necessary to maintain the listing of an ETF will continue to be met or remain unchanged. In addition, a passively-managed ETF may fail to accurately track the market segment or index that underlies its investment objective. To the extent that the Portfolio invests in an ETF, the Portfolio will indirectly bear its proportionate share of the management and other expenses that are charged by the ETF in addition to the expenses paid by the Portfolio.

**Derivatives Risk.** A derivative is any financial instrument whose value is based on, and determined by, another security, index, rate or benchmark (*i.e.*, stock options, futures, caps, floors, etc.). To the extent a derivative contract is used to hedge another position in the Portfolio, the Portfolio will be exposed to the risks associated with hedging described below. To the extent an option, futures contract, swap, or other derivative is used to enhance return, rather than as a hedge, the Portfolio will be directly exposed to the risks of the contract. Unfavorable changes in the value of the underlying security, index, rate or benchmark may cause sudden losses. Gains or losses from the Portfolio's use of derivatives may be substantially greater than the amount of the Portfolio's investment. Certain derivatives have the potential for undefined loss. Derivatives are also associated with various other risks, including market risk, leverage risk, hedging risk, counterparty risk, valuation risk, regulatory risk, illiquidity risk and interest rate risk. The primary risks associated with the Portfolio's use of derivatives are market risk, counterparty risk and hedging risk.

**Hedging Risk.** A hedge is an investment made in order to reduce the risk of adverse price movements in a security, by taking an offsetting position in a related security (often a derivative, such as an option, futures contract or a short sale). While hedging strategies can be very useful and inexpensive ways of reducing risk, they are sometimes ineffective due to unexpected changes in the market. Hedging also involves the risk that changes in the value of the related security will not match those of the instruments

being hedged as expected, in which case any losses on the instruments being hedged may not be reduced.

**Counterparty Risk.** Counterparty risk is the risk that a counterparty to a security, loan or derivative held by the Portfolio becomes bankrupt or otherwise fails to perform its obligations due to financial difficulties. The Portfolio may experience significant delays in obtaining any recovery in a bankruptcy or other reorganization proceeding, and there may be no recovery or limited recovery in such circumstances.

**Futures Risk.** Futures are contracts involving the right to receive or the obligation to deliver assets or money depending on the performance of one or more underlying assets, instruments or a market or economic index. A futures contract is an exchange-traded legal contract to buy or sell a standard quantity and quality of a commodity, financial instrument, index, etc. at a specified future date and price. A futures contract is considered a derivative because it derives its value from the price of the underlying commodity, security or financial index. The prices of futures contracts can be volatile and futures contracts may lack liquidity. In addition, there may be imperfect or even negative correlation between the price of a futures contract and the price of the underlying commodity, security or financial index.

**Forward Currency Contracts Risk.** A forward foreign currency contract or "currency forward" is an agreement between parties to exchange a specified amount of currency at a specified future time at a specified rate. Currency forwards are generally used to protect against uncertainty in the level of future exchange rates. Currency forwards do not eliminate fluctuations in the prices of the underlying securities a Portfolio owns or intends to acquire, but they do fix a rate of exchange in advance. Currency forwards limit the risk of loss due to a decline in the value of the hedged currencies, but at the same time they limit any potential gain that might result should the value of the currencies increase. The use of forward contracts involves the risk of mismatching the Portfolio's objective under a forward contract with the value of securities denominated in a particular currency. Such transactions reduce or preclude the opportunity for gain if the value of the currency should move in the direction opposite to the position taken. There is an additional risk to the effect that currency contracts create exposure to currencies in which the Portfolio's securities are not denominated. Unanticipated changes in currency prices may result in poorer overall performance for the Portfolio than if it had not entered into such contracts.

SunAmerica Series Trust

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**SA Goldman Sachs Multi-Asset Insights Portfolio**

**Model Risk**. The subadviser's investment models may not adequately take into account certain factors and may result in the Portfolio having a lower return than if the Portfolio were managed using another model or investment strategy. Models may depend heavily on the accuracy and reliability of historical data that is supplied by third parties or other external sources. When a model or data used in managing the Portfolio contains an error, or is incorrect or incomplete, any investment decision made in reliance on the model or data may not produce the desired results and the Portfolio may realize losses. In addition, the investment models used by the subadviser to evaluate securities or securities markets are based on certain assumptions concerning the interplay of market factors. The markets or the prices of individual securities may be affected by factors not foreseen in developing the models. Models may also use artificial intelligence techniques, such as natural language processing and machine learning, which could be less transparent or interpretable and could produce unexpected results, which can result in losses.

**Issuer Risk.** The value of a security may decline for a number of reasons directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods and services.

**Market Risk.** The Portfolio's share price or the market as a whole can decline for many reasons or be adversely affected by a number of factors, including, without limitation: weakness in the broad market, a particular industry, or specific holdings; adverse social, political, regulatory or economic developments in the United States or abroad; changes in investor psychology; technological disruptions; heavy institutional selling; military confrontations, war, terrorism and other armed conflicts, trade wars and sanctions, disease/virus outbreaks and epidemics; recessions; taxation and international tax treaties; currency, interest rate and price fluctuations; and other conditions or events. In addition, the subadviser's assessment of securities held in the Portfolio may prove incorrect, resulting in losses or poor performance even in a rising market. <br>

**Management Risk.** The Portfolio is subject to management risk because it is an actively-managed investment portfolio. The Portfolio's portfolio managers apply investment techniques and risk analyses in making investment decisions, but there can be no guarantee that these decisions or the individual securities selected by the portfolio managers will produce the desired results.

**Risk of Conflict with Insurance Company Interests - Risk Management.** Managing the Portfolio's risks relative to the Blended Index may reduce the risks and hedging costs assumed by the insurance company that sponsors your Variable Contract. This facilitates the insurance company's ability to provide guaranteed benefits. These guarantees are optional and may not be associated with your Variable Contract. While the interests of the Portfolio's shareholders and the insurance companies providing these guaranteed benefits are generally aligned, the insurance companies may face potential conflicts of interest. In particular, certain aspects of the Portfolio's investment strategy may have the effect of mitigating the financial risks to which the insurance companies are subject as a result of providing those guaranteed benefits and the hedging costs associated with providing such benefits. In addition, the Portfolio's performance may be lower than similar portfolios that do not employ the same risk management constraints.

**Performance Information**

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The following bar chart illustrates the risks of investing in the Portfolio by showing changes in the Portfolio's performance from calendar year to calendar year and the table compares the Portfolio's average annual returns to those of the S&P 500<sup>®</sup> Index (a broad-based securities market index) and the Blended Index, which is relevant to the Portfolio because it has characteristics similar to the Portfolio's investment strategies. Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown. Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.

**(Class 3 Shares)**

![](g104851sagsmaia_sast.jpg)

SunAmerica Series Trust

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**SA Goldman Sachs Multi-Asset Insights Portfolio**

During the period shown in the bar chart:

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| | | |
|:---|:---|:---|
| Highest Quarterly <br> Return:<br>| June 30, 2020 | 14.11% |
| Lowest Quarterly <br> Return:<br>| March 31, 2020 | -15.15% |
| Year to Date Most <br> Recent Quarter:<br>| March 31, 2026 | -1.50% |

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**Average Annual Total Returns** (For the periods ended December 31, 2025)

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| | | | | |
|:---|:---|:---|:---|:---|
|  | 1<br> Year<br>| 5<br> Years<br>| Since<br> Inception<br>| Inception<br> Date<br>|
| Class 1 Shares | 19.12% | &nbsp;&nbsp; 8.82% | &nbsp;&nbsp; 8.24% | 10/6/2017 |
| Class 3 Shares | 18.82% | &nbsp;&nbsp; 8.55% | &nbsp;&nbsp; 7.97% | 10/6/2017 |
| &nbsp;&nbsp;&nbsp;&nbsp; S&P 500® Index (reflects <br> no deduction for fees, <br> expenses or taxes)<br>| 17.88% | 14.42% | 14.60% |  |
| &nbsp;&nbsp;&nbsp;&nbsp; SA Gldmn Schs Mlt-Asst <br> Insights Blended Index<br>| 17.18% | &nbsp;&nbsp; 8.17% | &nbsp;&nbsp; 8.80% |  |

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**Investment Adviser**

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The Portfolio's investment adviser is SunAmerica.

The Portfolio is subadvised by GSAM.

***<u>Portfolio Managers</u>*** 

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| | |
|:---|:---|
| **Name and Title** | **Portfolio**<br> **Manager of the**<br> **Portfolio Since**<br>|
| &nbsp;&nbsp;&nbsp; Alexandra Wilson-Elizondo<br> Managing Director and Co-CIO<br>| 2022 |
| &nbsp;&nbsp;&nbsp; Siwen Wu<br> Managing Director<br>| 2021 |

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**Purchases and Sales of Portfolio Shares**

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Shares of the Portfolios may only be purchased or redeemed through Variable Contracts offered by the separate accounts of participating life insurance companies and by other portfolios of the Trust and Seasons Series Trust. Shares of a Portfolio may be purchased and redeemed each day the New York Stock

Exchange is open, at the Portfolio's net asset value determined after receipt of a request in good order.

The Portfolios do not have any initial or subsequent investment minimums. However, your insurance company may impose investment or account minimums. Please consult the prospectus (or other offering document) for your Variable Contract which may contain additional information about purchases and redemptions of Portfolio shares.

**Tax Information**

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The Portfolios will not be subject to U.S. federal income tax so long as they qualify as regulated investment companies and distribute their income and gains each year to their shareholders. However, contractholders may be subject to U.S. federal income tax (and a U.S. federal Medicare tax of 3.8% that applies to net investment income, including taxable annuity payments, if applicable) upon withdrawal from a Variable Contract. Contractholders should consult the prospectus (or other offering document) for the Variable Contract for additional information regarding taxation.

**Payments to Broker-Dealers and** <br> **Other Financial Intermediaries**

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The Portfolios are not sold directly to the general public but instead are offered as an underlying investment option for Variable Contracts and to other portfolios of the Trust and Seasons Series Trust. A Portfolio and its related companies may make payments to the sponsoring insurance company (or its affiliates) for distribution and/or other services. These payments may create a conflict of interest as they may be a factor that the insurance company considers in including a Portfolio as an underlying investment option in the Variable Contract. The prospectus (or other offering document) for your Variable Contract may contain additional information about these payments.

SunAmerica Series Trust

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CSP-86704C_382_390.10 (5/26)

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