Form 497K

Summary Prospectus

U.S. Small Cap Equity Fund

March 1, 2025, as supplemented through September 10, 2025

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, Statement of Additional Information (SAI), reports to shareholders and other information about the Fund online at https://connect.rightprospectus.com/russellinvestments. You can also get this information at no cost by calling 1-800-787-7354 or by sending an e-mail to: service@russellinvestments.com. The Fund's Prospectus and SAI, both dated March 1, 2025, as supplemented through September 10, 2025, and the Fund's most recent shareholder report, for the period ended April 30, 2025, are all incorporated by reference into this Summary Prospectus.

Class/Ticker: A/RLACX, C/RLECX, M/RUNTX, R6/RSCRX, S/RLESX, Y/REBYX

Investment Objective (Non-Fundamental)

The Fund seeks to provide long term capital growth.

Fees and Expenses of the Fund

The following tables describe the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund. In addition to the fees and expenses described below, you may also be required to pay brokerage commissions on purchases and sales of Class S Shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Russell Investment Company Funds. In addition, certain Financial Intermediaries (as defined below in the Additional Information section) may impose different sales loads and waivers. More information about these and other discounts is available from your financial professional and in the Front-End Sales Charges and More About Deferred Sales Charges sections and Appendix A: Additional Information About Financial Intermediary-Specific Sales Charge Variations, Waivers and Discounts, beginning on pages 278, 282 and 362, respectively, of the Prospectus, and in the Purchase, Exchange and Redemption of Fund Shares section, beginning on page 34, of the Fund’s Statement of Additional Information. Please see the Expense Notes section of the Fund’s Prospectus for further information regarding expenses of the Fund.

Shareholder Fees (fees paid directly from your investment)

	Class A	Class C, M, R6, S, Y
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.75%	None
Maximum Deferred Sales Charge (Load)*	1.00%	None
Maximum Sales Charge (Load) Imposed on Reinvested Dividends	None	None

The Maximum Deferred Sales Charge (Load) is charged on the lesser of the purchase price of the Shares being redeemed or the net asset value of those Shares at the time of redemption.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)#

	Share Classes
	A	C	M	R6	S	Y
Advisory Fee	0.70%	0.70%	0.70%	0.70%	0.70%	0.70%
Distribution (12b-1) Fees	0.25%	0.75%	None	None	None	None
Other Expenses (including shareholder services fees of 0.25% for Class C Shares and Dividend and Interest Expenses on Short Sales of 0.11%)	0.42%	0.67%	0.42%	0.27%	0.42%	0.22%
Total Annual Fund Operating Expenses	1.37%	2.12%	1.12%	0.97%	1.12%	0.92%
Less Fee Waivers and Expense Reimbursements	0.00%	0.00%	(0.14)%	(0.02)%	(0.04)%	0.00%
Net Annual Fund Operating Expenses	1.37%	2.12%	0.98%	0.95%	1.08%	0.92%

Until February 28, 2026, Russell Investments Fund Services, LLC has contractually agreed to waive 0.14% of its transfer agency fees for Class M Shares, 0.04% of its transfer agency fees for Class S Shares and 0.02% of its transfer agency fees for Class R6 Shares. These waivers may not be terminated during the relevant period except with Board approval.

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.

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes your investment has a 5% return each year and that operating expenses remain the same. The calculation of costs for the one year period takes into account the effect of any current contractual fee waivers and/or reimbursements. The calculation of costs for the remaining periods takes such fee waivers and/or reimbursements into account only for the first year of the periods.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

	Share Classes
	A	C	M	R6	S	Y
1 Year	$706	$215	$100	$97	$110	$94
3 Years	$984	$664	$342	$307	$352	$293
5 Years	$1,282	$1,139	$603	$534	$613	$509
10 Years	$2,127	$2,452	$1,351	$1,188	$1,360	$1,131

Portfolio Turnover

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 and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 76% of the average value of its portfolio.

Investments, Risks and Performance

Principal Investment Strategies of the Fund

The Fund has a non-fundamental policy to invest, under normal circumstances, at least 80% of the value of its net assets plus borrowings for investment purposes in small capitalization equity securities economically tied to the U.S. The Fund

invests principally in common stocks of small capitalization U.S. companies, some of which are also considered micro capitalization U.S. companies. The Fund defines small capitalization companies as those companies represented by the Russell 2000® Index or with market capitalization within the capitalization range of the Russell 2000® Index. The Fund may employ long-short equity strategies pursuant to which it sells securities short. Equity securities in which the Fund invests include common stocks, preferred stocks, partnership interests and equity-equivalent securities or instruments whose values are based on common stocks, such as futures contracts. In determining if a security is economically tied to the U.S., the Fund generally looks to the “country of risk” of the issuer as determined by a third party such as Bloomberg L.P.

Russell Investment Management, LLC (“RIM”) provides or oversees the provision of all investment advisory and portfolio management services for the Fund. The Fund is advised by RIM and multiple money managers unaffiliated with RIM pursuant to a multi-style (e.g., growth, value, market-oriented, defensive and/or dynamic) and multi-manager approach. RIM may change the Fund's asset allocation at any time, including not allocating Fund assets to one or more money manager strategies. The Fund employs discretionary and non-discretionary money managers. The Fund's discretionary money managers select the individual portfolio instruments for the assets assigned to them. The Fund's non-discretionary money managers provide a model portfolio to RIM representing their investment recommendations, based upon which RIM purchases and sells securities for the Fund. RIM manages Fund assets not allocated to money manager strategies and utilizes quantitative and/or rules-based processes and qualitative analysis to assess Fund characteristics and invest in securities and instruments which provide the desired exposures. RIM may use strategies based on indexes. RIM also manages the portion of Fund assets for which the Fund's non-discretionary money managers provide model portfolios and the Fund's cash balances. The Fund usually, but not always, pursues a strategy to be fully invested by exposing all or a portion of its cash to the performance of appropriate markets by purchasing equity securities and/or derivatives, which typically include index futures contracts.

The Fund may invest in derivative instruments and may use derivatives to take both long and short positions. The Fund may invest a portion of its assets in securities of companies, known as real estate investment trusts (“REITs” ), that own and/or manage properties. The Fund may lend its portfolio securities to earn income. Please refer to the “Investment Objective and Investment Strategies” section in the Fund's Prospectus for further information.

Principal Risks of Investing in the Fund

An investment in the Fund, like any investment, has risks. The value of the Fund fluctuates and you could lose money. The principal risks of investing in the Fund are those associated with:

●

Equity Securities. The value of equity securities will rise and fall in response to the activities of the company that issued them, general market conditions and/or economic conditions. Investments in small and micro capitalization companies may involve greater risks because these companies generally have narrower markets, more limited managerial and financial resources and a less diversified product offering than larger, more established companies. Small and micro capitalization stocks may also be thinly traded, and thus, difficult to buy and sell in the market. Micro capitalization company stocks are also more likely to suffer from significantly diminished market liquidity.

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Global Financial Markets Risk. Global economies and financial markets are becoming increasingly interconnected and conditions (including volatility and instability) and events (including natural disasters, pandemics and epidemics) in one country, region or financial market may adversely impact issuers in a different country, region or financial market. In addition, governmental and quasi-governmental organizations have taken a number of unprecedented actions designed to support the markets. Such events and conditions may adversely affect the value of the Fund’s securities, result in greater market or liquidity risk or cause difficulty valuing the Fund’s portfolio instruments or achieving the Fund’s objective.

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Liquidity Risk. The market for certain investments may become illiquid or less liquid (i.e., there may be a significant reduction in trading activity, including in the number of market participants or transactions, in such investments)

under adverse or volatile market or economic conditions, making those investments difficult to sell. The market price of certain investments may fall dramatically if there is no liquid trading market. For derivatives, this also includes the risk involving liquidity demands that derivatives can create to make payments of margin or settlement payments to counterparties. Such events and conditions may adversely affect the value of the Fund’s investments, result in greater market or liquidity risk or cause difficulty valuing the Fund’s portfolio instruments or achieving the Fund’s objective.

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Active Management. Despite strategies designed to achieve the Fund’s investment objective, the value of investments will change with market conditions, and so will the value of any investment in the Fund and you could lose money. The securities selected for the portfolio may not perform as RIM or the Fund's money managers expect. Additionally, securities selected may cause the Fund to underperform relative to other funds with similar investment objectives and strategies. There is no guarantee that RIM will effectively assess the Fund's portfolio characteristics and it is possible that its judgments regarding the Fund's exposures may prove incorrect. In addition, actions taken to manage Fund exposures, including risk, may be ineffective and/or cause the Fund to underperform.

●

Short Sales Risk. A short sale will result in a loss if the price of the security sold short increases between the date of the short sale and the date on which the borrowed security must be returned. Short sales may give rise to a form of leverage. Leverage tends to exaggerate the effect of any increase or decrease in the value of portfolio securities. Short sales have the potential for unlimited loss.

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Multi-Manager Approach. While the investment styles employed by the money managers are intended to be complementary, they may not in fact be complementary. A multi-manager approach could result in more exposure to certain types of securities and higher portfolio turnover.

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Fundamental Investing Risk. A fundamental investment approach uses research and analysis of a variety of factors to create a forecast of company results, which is used to select securities. The process may result in an evaluation of a security’s value that may be incorrect or, if correct, may not be reflected by the market. Security or instrument selection using a fundamental investment approach may also cause the Fund to underperform other funds with similar investment objectives and investment strategies even in a rising market.

●

Quantitative Investing and Models. Quantitative inputs and models use historical company, economic and/or industry data to evaluate prospective investments or to generate forecasts which could result in incorrect assessments of the specific portfolio characteristics or ineffective adjustments to the Fund’s exposures. Securities selected using quantitative analysis may perform differently than analysis of their historical trends would suggest. Inputs or models may be flawed or not work as anticipated and may cause the Fund to underperform other funds with similar investment objectives and strategies.

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Derivatives. Investments in a derivative instrument could lose more than the initial amount invested. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and thus the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities. The use of derivative instruments involves risks different from, and possibly greater than, the risks associated with investing directly in equity or fixed income securities, currencies or other instruments. Derivatives are generally subject to a number of risks such as leveraging risk, liquidity risk, market risk, credit risk, default risk, counterparty risk (the risk that the other party in an agreement will fail to perform its obligations), management risk, operational risk and legal risk. Certain of these risks do not apply to derivative instruments entered into for hedging or cash equitization, certain cleared derivative instruments, and written options contracts. Derivatives also involve the risk of mispricing or improper valuation and the risk that changes in the value of the derivative instrument may not correlate exactly with the change in the value of the underlying asset, rate or index.

●

Index-Based Investing. Index-based strategies (including index replication which seeks to purchase the securities in an index or a blend of indexes and optimized index sampling which seeks to purchase a sampling of securities using optimization and risk models), which may be used to gain desired Fund exposures, may cause the Fund's returns to be lower than if the Fund employed a fundamental investment approach to security selection with respect to that portion of its portfolio. Additionally, index-based strategies are subject to “tracking error” risk, which is the risk that the performance of the portion of the Fund's portfolio utilizing an index-based strategy will differ from the performance of the index it seeks to track.

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Financial Services Sector Risk. The Fund may be susceptible to adverse economic or regulatory occurrences affecting the financial services sector, including with respect to U.S. and foreign banks, broker-dealers, insurance companies, finance companies (e.g., automobile finance) and related asset-backed securities. These developments may affect the value of the Fund’s investments more than if the Fund were not invested to such a degree in this sector. Companies in the financial services sector may be particularly susceptible to factors such as interest rate, fiscal, regulatory and monetary policy changes.

●

Real Estate Investment Trusts (“REITs”). REITs may be affected by changes in the value of the underlying properties owned by the REITs and by the quality of tenants’ credit.

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Securities Lending. If a borrower of the Fund's securities fails financially, the Fund’s recovery of the loaned securities may be delayed or the Fund may lose its rights to the collateral, which could result in a loss to the Fund. While securities are on loan, the Fund is subject to a number of risks, including that the borrower may default on the loan and that the collateral could be inadequate in the event of default.

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Counterparty Risk. Counterparty risk is the risk that the other party or parties to an agreement or a participant to a transaction, such as a broker, might default on a contract or fail to perform by failing to pay amounts due or failing to fulfill the obligations of the contract or transaction.

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Non-Discretionary Implementation Risk. With respect to the portion of the Fund that is managed pursuant to model portfolios provided by non-discretionary money managers, it is expected that trades will be effected on a periodic basis and therefore less frequently than would typically be the case if discretionary money managers were employed. Given that values of investments change with market conditions, this could cause the Fund's return to be lower than if the Fund employed discretionary money managers with respect to that portion of its portfolio.

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Impact of Large Redemptions (Including Possible Fund Liquidation). The Fund may be used as an investment by certain funds of funds and in asset allocation programs and may have a large percentage of its Shares owned by such funds or held in such programs. Large redemption activity could result in the Fund incurring additional costs and being forced to sell portfolio securities at a loss to meet redemptions. Large redemptions may also result in increased expense ratios, higher levels of realized capital gains or losses with respect to the Fund’s portfolio securities, higher Fund cash levels, higher brokerage commissions and other transaction costs, among other negative consequences such as reduced liquidity in the Fund’s portfolio. As a result, large redemption activity could adversely affect the Fund’s ability to conduct its investment program which, in turn, could adversely impact the Fund’s performance or may result in the Fund no longer remaining at an economically viable size, in which case the Fund may cease operations.

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Cyber Security and Other Operational Risks. An investment in the Fund, like any fund, can involve operational risks. In addition, other disruptive events may adversely affect the Fund’s ability to conduct business. While the Fund seeks to minimize such risks and events through controls and oversight, including business continuity plans and risk management systems, there may still be events or failures that could cause losses to the Fund. In addition, the Fund may be susceptible to operational risks through breaches in cyber security. A cyber security breach may

cause sensitive information (including relating to personally identifiable information of investors) to be lost, improperly accessed, used or disclosed. The Fund and its shareholders could be negatively impacted by such disruptive events or cyber security incidents.

Please refer to the “Risks” section in the Fund’s Prospectus for further information.

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance

The following bar chart illustrates the risks of investing in the Fund by showing how the performance of the Fund’s Class S Shares varies from year to year over a 10-year period. The returns (both before and after tax) for other Classes of Shares offered by this Prospectus may be lower than the returns shown in the bar chart, depending upon the fees and expenses of those Classes. The highest and lowest returns for a full quarter during the periods shown in the bar chart are set forth next to the bar chart.

The table accompanying the bar chart further illustrates the risks of investing in the Fund by showing how the Fund’s average annual total returns for the periods shown compare with the returns of one or more indexes that measure broad market performance. The first benchmark in the table is the Fund's primary benchmark. The second benchmark in the table is the Fund's secondary benchmark. This benchmark provides a means to compare the Fund's average annual returns to a benchmark that RIM believes is representative of the investment strategies pursued by the Fund. RIM assesses the Fund’s performance relative to its secondary benchmark.

After-tax returns are shown only for one class. The after-tax returns for other classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. If the Fund has realized capital losses, the total return after taxes on distributions and sale of Fund Shares may be higher than the total return before taxes and the total return after taxes on distributions. For more information, see the Performance Notes section in the Fund’s Prospectus.

Past performance, both before-tax and after-tax, is no indication of future results. More current performance information is available at https://russellinvestments.com.

Class S Calendar Year Total Returns

Average annual total returns for the periods ended December 31, 2024	1 Year	5 Years	10 Years
Return Before Taxes, Class A	2.08%	6.39%	6.66%
Return Before Taxes, Class C	7.50%	6.86%	6.49%
Return Before Taxes, Class M	8.72%	8.08%	7.68%
Return Before Taxes, Class R6	8.77%	8.11%	7.75%
Return Before Taxes, Class Y	8.77%	8.14%	7.77%
Return Before Taxes, Class S	8.64%	7.97%	7.59%
Return After Taxes on Distributions, Class S	5.49%	5.23%	5.10%
Return After Taxes on Distributions and Sale of Fund Shares, Class S	6.99%	5.67%	5.39%
Russell 3000® Index (reflects no deduction for fees, expenses or taxes)	23.81%	13.86%	12.55%
Russell 2000® Index (reflects no deduction for fees, expenses or taxes)	11.54%	7.40%	7.82%

Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell® is a trademark of Frank Russell Company.

Management

Investment Adviser

The Fund's investment adviser is RIM. The Fund's money managers are:

●Ancora Advisors, LLC	●Jacobs Levy Equity Management, Inc.
●Boston Partners Global Investors, Inc.	●Lord, Abbett & Co. LLC
●Calamos Advisors LLC	●Penn Capital Management Company, LLC
●Copeland Capital Management, LLC	●Ranger Investment Management, L.P.
●DePrince, Race & Zollo, Inc.

Although all of the Fund’s money managers are listed above, RIM may not have allocated assets to the strategies employed by one or more of these money managers.

Portfolio Managers

Megan Roach, Senior Director, Co-Head of Equity Portfolio Management, and Nick Haupt, Senior Portfolio Manager, Equity, have primary responsibility for the management of the Fund. Ms. Roach has managed the Fund since March 2015 and Mr. Haupt has managed the Fund since December 2023.

Additional Information

How to Purchase Shares

Shares are only available through a select network of banks (including bank trust departments), registered investment advisers, broker-dealers and other financial services organizations (collectively, “Financial Intermediaries”), unless you are eligible to participate in a Russell Investments employee investment program. Certain Classes of Shares may only be purchased by specified categories of investors and are only offered by certain Financial Intermediaries. There is currently no required minimum initial investment for Class A, Class C, Class M, Class R6 or Class S Shares. For Class Y Shares, there is a $10 million minimum initial investment for each account in each Fund. However, for Class Y Shares there is no required minimum initial investment for specified categories of investors. Each Fund reserves the right to close any account whose balance falls below $500 and to change the categories of investors eligible to purchase its Shares.

For more information about how to purchase Shares, please see Additional Information about How to Purchase Shares in the Funds’ Prospectus.

How to Redeem Shares

Shares may be redeemed through your Financial Intermediary on any business day of the Funds (defined as a day on which the New York Stock Exchange (“NYSE”) is open for regular trading). Redemption requests are processed at the next net asset value per share calculated after a Fund receives an order in proper form as determined by your Financial Intermediary. Redemption requests must normally be received by a Fund or a Fund agent prior to the close of regular trading on the NYSE (normally 4:00 p.m., Eastern Time) on a business day of the Fund, in order to be processed at the net asset value calculated on that day. Because Financial Intermediaries and Fund agents may have earlier redemption order cut off times to allow them to deliver redemption orders to the Fund prior to the Fund’s order transmission cut off time, please ask your Financial Intermediary what the cut off time is. Please contact your Financial Intermediary for instructions on how to place redemption requests.

For more information about how to redeem Shares, please see Additional Information about How to Redeem Shares in the Funds’ Prospectus.

Taxes

Unless you are investing through an IRA, 401(k) or other tax-advantaged retirement account, distributions from a Fund are generally taxable to you as either ordinary income or capital gains.

For more information about these and other tax matters relating to each Fund and its shareholders, please see Additional Information about Taxes in the Funds’ Prospectus.