Summary Prospectus by Investment Company (Form 497K)

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, reports to shareholders, and other information about the Fund online at http://connect.rightprospectus.com/Morningstar. You may also obtain this information at no cost by calling 877-626-3224 or by sending an email request to [email protected]. The Fund's Prospectus and Statement of Additional Information dated September 1, 2026, are incorporated by reference into this Summary Prospectus.

Investment Objective

The Fund seeks capital preservation.

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. 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.

Example

The example below can help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. This example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The example reflects adjustments made to the Fund's operating expenses due to the fee waivers and/or expense reimbursements shown in the table above for the first year only. The example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover

The Fund will pay transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may mean higher transaction costs and could result in higher taxes if you hold Fund shares in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the example, affect the Fund's performance. For the Fund's fiscal year ended April 30, 2026, the Fund's portfolio turnover rate was 39% of the average value of its portfolio.

Principal Investment Strategies

In seeking capital preservation, the Fund will normally invest at least 80% of its assets in a diversified portfolio of debt securities (commonly referred to as "bonds") of varying maturity, duration, and quality. These debt securities may include U.S. and non-U.S. corporate debt securities, U.S. and non-U.S. government debt securities, and mortgage-backed and asset-backed securities. Under normal conditions, the Fund intends to pursue a defensive strategy of limiting its interest-rate sensitivity by maintaining a portfolio duration of three years or less. Because of events affecting the bond markets and interest rate changes, the duration of the portfolio might not meet the target at all times. The Fund may also invest in investment companies such as ETFs, which could represent a significant percentage of assets. The Fund may invest in securities acquired in a private placement, such as Rule 144A securities.

The Fund invests primarily in short- and intermediate-term investment-grade fixed-income securities. In most market environments, the Fund will not invest more than 20% of assets in fixed-income securities that are rated below investment grade (commonly known as junk bonds), or if unrated, are determined by the Fund's subadviser(s) to be of comparable quality.

In addition, the Fund may invest a significant portion of its assets in collateralized debt obligations (CDOs), including collateralized loan obligations (CLOs). CDOs are types of asset-backed securities. CLOs are ordinarily issued by a trust or other special purpose entity and are typically collateralized by a pool of loans, which may include, among others, domestic and non-U.S. senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans, held by such issuer.

Multimanager Approach-The Fund uses a multimanager approach, meaning the adviser, in its discretion, may manage assets directly by investing in open- and closed-end investment companies, ETFs and individual securities or allocate assets to one or more subadvisers (collectively "Allocation Decisions"). The adviser and each subadviser acts independently from the others and uses its own investment style and process to select securities, within the constraints of the Fund's investment objective, strategies, and restrictions. Morningstar, as the Fund's adviser, is responsible for selecting the investment strategies and making Allocation Decisions, with the goal of maximizing return in the context of pursuing the Fund's investment objective with a prudent level of risk for the strategy. Morningstar may change subadvisers, subject to the oversight of the board of trustees, and sell holdings at any time.

Principal Risks

This Fund is designed to offer a low level of risk, but you can lose money by investing in the Fund. The Fund can also underperform broad markets and other investments. The Fund's principal risks include:

Multimanager and Subadviser Selection Risk-To a significant extent, the Fund's performance depends on Morningstar's skill in selecting subadvisers and each subadviser's skill in selecting securities and executing its strategy. Subadviser strategies may occasionally be out of favor and subadvisers may underperform relative to their peers or benchmarks.

Active Management Risk-The Fund is actively managed with discretion and may underperform market indexes or other mutual funds with similar investment objectives. The Fund's performance depends heavily on Morningstar's skill and judgment in managing assets directly (through open- and closed-end investment companies, ETFs and individual securities) and allocating assets to subadvisers and Morningstar and each subadviser's skill in selecting securities and executing its strategy. The Fund could experience losses if these judgments prove to be incorrect.

Asset Allocation Risk-In an attempt to invest in areas that look most attractive based on market, economic or other conditions, the Fund may favor asset classes or market segments that cause the Fund to underperform its benchmark. Given the wide latitude with which the adviser manages this portfolio, you should expect this Fund to periodically underperform broad markets.

Market Risk-The value of stocks and other securities can be highly volatile and prices may fluctuate widely, which means you should expect a wide range of returns and could lose money, even over a long time period. Various economic, industry, regulatory, political or other factors (such as natural disasters, epidemics and pandemics, war, terrorism, changes in trade regulation or economic sanctions, conflicts, social unrest, recessions, or the threat or occurrence of a government shutdown) may disrupt U.S. and world economies and can dramatically affect markets generally, certain industry sectors, and/or individual companies.

Interest-Rate Risk-The value of fixed-income securities will typically decline when interest rates rise. The Fund may be subject to a greater risk of rising interest rates during low interest rate environments.

Call Risk-During periods of falling interest rates, an issuer may call or repay a higher-yielding fixed income security before its maturity date, forcing the Fund to reinvest in fixed income securities with lower interest rates than the original obligations.

Credit Risk-Issuers of fixed-income securities could default or be downgraded if they fail to make required payments of principal or interest.

High-Yield Risk-High-yield securities and unrated securities of similar credit quality (commonly known as junk bonds) are subject to greater levels of credit, valuation and liquidity risks. High-yield securities are considered speculative with respect to the issuer's continuing ability to make principal and interest payments.

Investment Company/ETF Risk-An investment company, including an open- or closed-end mutual fund or ETF, in which the Fund invests may not achieve its investment objective or execute its investment strategies

effectively, or a large purchase or redemption activity by shareholders might negatively affect the value of the shares. The Fund must also pay its pro rata portion of an investment company's fees and expenses. Shares of ETFs trade on exchanges and may be bought and sold at market value. ETF shares may be thinly traded, making it difficult for the Fund to sell shares at a particular time or an anticipated price. ETF shares may also trade at a premium or discount to the net asset value of the ETF; at times, this premium or discount could be significant.

Mortgage-Related and Other Asset-Backed Securities Risk-Mortgage- and asset-backed securities represent interests in "pools" of mortgages or other assets, including consumer loans or receivables held in trust.

Mortgage- and asset-backed securities are subject to credit and interest rate risks, as well as extension and prepayment risks:

Extension Risk-Rising interest rates tend to extend the duration of mortgage-related securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, if the Fund holds mortgage-related securities, it may exhibit additional volatility.

Prepayment Risk-When interest rates decline, the value of mortgage-related securities with prepayment features may not increase as much as other fixed-income securities because borrowers may pay off their mortgages sooner than expected. In addition, the potential impact of prepayment on the price of asset-backed and mortgage-backed securities may be difficult to predict and result in greater volatility.

These securities also are subject to risk of default on the underlying mortgage or asset, particularly during periods of economic downturn. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities. TBA (or "to be announced") commitments are forward agreements for the purchase or sale of securities, including mortgage-backed securities for a fixed price, with payment and delivery on an agreed upon future settlement date. The specific securities to be delivered are not identified at the trade date. However, delivered securities must meet specified terms, including issuer, rate and mortgage terms.

CDO Risk-In addition to the typical risks associated with fixed-income securities and asset-backed securities, CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the risk that the collateral may default or decline in value or be downgraded, if rated by a nationally recognized statistical rating organization; (iii) the Fund may invest in tranches of CDOs that are subordinate to other tranches; (iv) the structure and complexity of the transaction and the legal documents could lead to disputes among investors regarding the characterization of proceeds; (v) the investment return achieved by the Fund could be significantly different than those predicted by financial models; (vi) the lack of a readily available secondary market for CDOs; (vii) the risk of forced "fire sale" liquidation due to technical defaults such as coverage test failures; and (viii) the CDO's manager may perform poorly. In addition, investments in CDOs may be characterized by the Fund as illiquid investments.

Foreign Securities Risk-Securities of non-U.S. issuers may be less liquid, more volatile, and harder to value than U.S. securities. They may also be subject to political, economic, and regulatory risks, and market instability. Non-U.S. issuers also may not be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable and publicly available financial and other information about such issuers, as compared to U.S. issuers.

U.S. Government Securities Risk-U.S. government obligations have different levels of credit support and, therefore, different degrees of credit risk. The U.S. government does not guarantee the market value of the securities it issues, so those values may fluctuate. Like most fixed-income securities, the prices of government securities typically fall when interest rates increase and rise when interest rates decline. In addition, the payment obligations on certain securities in which the Fund may invest, including securities issued by certain

U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States.

Sovereign Debt Securities Risk-Sovereign debt instruments are subject to the risk that a governmental entity may delay or refuse to pay interest or repay principal on its sovereign debt, due, for example, to cash flow problems, insufficient foreign currency reserves, political considerations, the relative size of the governmental entity's debt position in relation to the economy, or the failure to put in place economic reforms required by the International Monetary Fund or other multilateral agencies.

Floating-Rate Notes Risk-Floating-rate notes are subject to credit risk and interest-rate risk. The interest rate of a floating rate instrument may be based on a known lending rate, such as a bank's prime rate, and is reset whenever such rate is adjusted. The interest rate on a variable-rate demand note is reset at specified intervals at a market rate. Some floating- and variable-rate securities may be callable by the issuer, meaning that they can be paid off before their maturity date and the proceeds may be required to be invested in lower yielding securities that reduce the Fund's income.

Private Placements Risk-Securities that are purchased in private placements are subject to restrictions on resale as a matter of contract or under federal securities laws. Because there may be relatively few potential purchasers for these investments, especially under adverse circumstances, the Fund could find it more difficult to sell private placements at an advisable time or attractive price. Additionally, such securities may not be listed on an exchange and may have no active trading market. Accordingly, many private placement securities may be illiquid. At times, it may also be more difficult to determine the fair value of such securities for purposes of computing the Fund's net asset value.

Valuation risk-The amount the Fund actually receives when selling (or otherwise disposing of) an investment may differ from the Fund's recorded valuation of that investment. This discrepancy is more likely for investments that trade infrequently, are valued using fair-value methods or third-party pricing vendors, or are held during periods of market stress or heightened volatility. Consequently, the Fund may realize a larger loss or a smaller gain than anticipated based on its stated valuation. Additionally, the Fund's valuation process could be disrupted by technology failures or errors originating from pricing vendors or other external service providers.

Cybersecurity Risk-The Fund, like all companies, may be susceptible to operational and information security risks. Cybersecurity failures or breaches of the Fund or its service providers or the issuers of securities in which a Fund invests, have the ability to cause disruptions and impact business operations, and the Fund and its shareholders could be negatively impacted as a result.

Performance

The bar chart and performance table that follow provide some indication of the risks of investing in the Fund. The bar chart shows the annual return for the Fund from year to year as of December 31. The table shows how the Fund's average annual returns for periods ended December 31, 2025 (1 year, 5 years and since inception) compare with those of a broad measure of market performance and an additional index. You may obtain the Fund's updated performance information by visiting the website at http://connect.rightprospectus.com/Morningstar or by calling 877-626-3224. As with all mutual funds, the Fund's past performance (before and after taxes) does not predict how the Fund will perform in the future.

Calendar Year Total Return-Institutional

Morningstar Defensive Bond Fund % Total Return

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, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. The figures in Return After Taxes on Distributions and Sale of Fund Shares in the chart above may be higher than other returns for the same period because the calculation assumes that an investor will recognize a potential tax benefit from realizing a capital loss upon the taxable sale (or redemption) of shares.

Fund Management

Morningstar is the investment adviser for the Fund and has overall supervisory responsibility for the general management and investment of the Fund's portfolio. The Fund is managed in a multimanager structure. On

behalf of Morningstar, the following persons have primary responsibility for the Fund and, subject to oversight by the board of trustees, are responsible for selecting and overseeing the subadviser listed below.

Subadviser and Portfolio Manager

Morningstar currently allocates assets to the following subadviser and may adjust this allocation at any time. The portfolio manager listed below is responsible for the day-to-day management of the Fund's portfolio:

Purchase and Sale of Fund Shares

Fund shares are available through investment platforms provided by financial institutions on a stand-alone basis and/or as part of a model portfolio ("Solutions"). Such Solutions include, but are not limited to, investment advisory programs provided by unaffiliated financial advisers, managed account advisory services that certain third party retirement plan sponsors (e.g., employers) and/or retirement plan recordkeepers make available to their retirement plan participants and solutions provided in model portfolio marketplaces. There are no initial or subsequent minimum purchase amounts for the Institutional shares. Orders to sell or "redeem" shares must be placed through the financial institution providing the Solution to you and may trigger a purchase or sale of the Fund's underlying investments. Fund shares may be purchased or redeemed on any day the New York Stock Exchange (NYSE) is open. At any time that an investor in the Fund ceases to be eligible for a Solution, the provider of that Solution may direct the redemption of that investor's Fund shares and no further purchases will be allowed.

See the Purchase and Sale of Fund Shares section on page 127 of the prospectus for more information.

Tax Information

The Fund's distributions generally are taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an IRA, in which case your distributions may be taxed as ordinary income when withdrawn from the tax-advantaged account.