North Square McKee Bond Fund

TICKER: Class R6: NMKBX, Class I: NMKYX

Summary Prospectus

September 28, 2026

Before you invest, you may want to review the North Square McKee Bond Fund’s (the “Fund”) 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 https://northsquareinvest.com/fund-etf-literature-and-morningstar-ratings/. You may also obtain this information at no cost by calling 1-855-551-5521 or by e-mail at info@northsquareinvest.com. The Fund’s Prospectus and Statement of Additional Information, both dated September 28, 2026, are incorporated by reference into this Summary Prospectus.

Investment Objective

The investment objective of the North Square McKee Bond Fund (the “Fund”) is to maximize total return and generate consistent outperformance of the Fund’s benchmark, the Bloomberg US Aggregate Bond Index (the “Bloomberg Index”), with a high quality and highly liquid, well diversified portfolio through opportunistic, risk-controlled management.

Fees and Expenses of the Fund

This table describes 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

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 that your investment has a 5% return each year and that the Fund’s operating expenses remain the same (taking into account the contractual fee waiver until September 30, 2027). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 225% of the average value of its portfolio.

Principal Investment Strategies

In seeking to achieve the Fund’s investment objective, the Adviser has selected CSM Advisors, LLC (“CSM” or the “Sub-Adviser”), an affiliate of, and under common control with, the Adviser, to serve as the Fund’s sub-adviser and allocates the Fund’s assets to the Sub-Adviser. The Adviser retains the ability to manage all or a portion of the Fund’s assets directly.

The Fund invests, under normal market conditions, at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in fixed and floating rate investment-grade securities. The Sub-Adviser seeks to construct a portfolio of high quality, highly liquid securities that it believes can provide an above-market yield and total return, with an emphasis on managing credit risk to help protect principal, by diversifying across multiple sectors and security types that it believes offers the best risk/return profile over the long-term – including U.S. Treasury and U.S. Government Agency securities (including Treasury Inflation-Protected Securities), investment-grade corporate bonds (primarily rated A or better), and government agency and other investment-grade mortgage- and asset-backed securities. The Fund focuses on investments in fixed maturity and callable U.S. Government Agency securities and high-quality corporate bonds (primarily A or better), agency mortgages and other investment grade securitized holdings, seeking to minimize the potential for loss of principal due to credit risk. The Sub-Adviser believes that these securities offer favorable yields relative to specific market risks. The Sub-Adviser typically diversifies among multiple security types that it believes provide the best risk/return profile over the long term. These securities include, among others, U.S. Treasury Inflation-Protected Securities, certificates of deposit, zero coupon callable agency bonds, and mortgage-backed and other asset-backed securities (including senior, first tranche collateralized loan obligations).

The Sub-Adviser seeks to consistently add value relative to the performance of the Bloomberg Index on both a nominal and risk-adjusted basis. Employing a primary focus on security selection, the Fund seeks to outperform across a range of plausible market scenarios while maintaining superior credit quality and liquidity. The Sub-Adviser’s methodology incorporates a bottom-up approach that is opportunistic, yet risk controlled. As noted above, the Sub-Adviser’s focus on active management of high-quality and highly liquid securities is designed to mitigate credit and duration risk and provide enhanced portfolio diversification. Duration is a measure of the expected price volatility of a bond to changes in interest rates. The longer the duration of a bond, the more sensitive it will be to changes in interest rates. For example, a three-year duration means a bond is expected to decrease in value by 3% if interest rates rise 1% and increase in value by 3% if interest rates fall 1%.

The Sub-Adviser assesses a broad range of economic data to develop plausible market scenarios as inputs to portfolio construction. The Fund’s portfolio alpha is expected to result primarily from active security analysis and sector weighting decisions. The Fund’s holdings are focused on the largest and most liquid credit issuers as well as a broad array of government agency holdings in an effort to produce superior risk-adjusted returns and liquidity across market scenarios. The Sub-Adviser’s tactical approach to duration is employed as a tool primarily for principal preservation, typically operating within an 80% to 120% range versus the duration of the Bloomberg Index. The Bloomberg Index duration was 5.77 years as of August 31, 2026. The aggregate portfolio holdings are expected to generally have a maximum expected average life of 10 years or less.

Principal Risks of Investing

Risk is inherent in all investing including an investment in the Fund. An investment in the Fund involves certain principal risks, including, among others: Fixed Income Securities Risk, Interest Rate Risk, Market Risk, Credit Risk, Liquidity Risk, Duration Risk, Mortgage-Backed and Asset-Backed Securities Risk, Negative Convexity Risk, U.S. Government Obligations Risk, Management and Strategy Risk, and Sector Focus Risk. Summary descriptions of these and other principal risks of investing in the Fund are set forth below. Before you decide whether to invest in the Fund, carefully consider these risks associated with investing in the Fund, which may cause investors to lose money. There can be no assurance that the Fund will achieve its investment objective. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Fixed Income Securities Risk. The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to changes in an issuer’s credit rating or market perceptions about the creditworthiness of an issuer. Liquidity may decline unpredictably in response to overall economic conditions or credit tightening. For example, a general rise in interest rates may cause investors to move out of fixed income securities on a large scale, which could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions for the Fund.

Interest Rate Risk. Generally, fixed income securities decrease in value if interest rates rise and increase in value if interest rates fall, with longer-term securities being more sensitive than shorter-term securities. For example, the price of a security with a three-year duration would be expected to drop by approximately 3% in response to a 1% increase in interest rates. Generally, the longer the maturity and duration of a bond or fixed rate loan, the more sensitive it is to this risk. Falling interest rates also create the potential for a decline in the Fund’s income. Changes in governmental policy, rising inflation rates, and general economic developments, among other factors, could cause interest rates to increase and could have a substantial and immediate effect on the values of the Fund’s investments. In addition, a rise in interest rates may result in periods of volatility and increased redemptions that might require the Fund to liquidate portfolio securities at disadvantageous prices and times. Risks associated with rising interest rates are heightened given that interest rates in the U.S. have risen from historically low levels in recent years. Interest rates may continue to increase in the future with unpredictable effects on the financial markets and the Fund’s investments.

Market Risk. The market price of a security or instrument may decline, sometimes rapidly or unpredictably, due to general market conditions that are not specifically related to a particular company, such as domestic and foreign (non-U.S.) economic growth and real or perceived adverse economic or political conditions throughout the world, including war, social unrest, natural disasters, public health crises (including the occurrence of a contagious disease or illness), changes in the general outlook for corporate earnings, inflation, tariffs, supply chain disruptions, sanctions, changes in interest or currency rates or adverse investor sentiment generally. The market value of a security or instrument also may decline because of factors that affect a particular industry or industries, such as labor shortages or increased production costs and competitive conditions within an industry. These events may lead to economic uncertainty, decreased economic activity, and increased market volatility. Given the interconnectedness of markets around the world, even if these events or conditions affect only a single or small number of issuers or countries, they may have disruptive effects across global economies and markets. The change in the presidential administration in 2025 has resulted in significant impacts to international trade relations, tax and immigration policies, and other aspects of the national and international political and financial landscape, which could affect, among other things, inflation and the securities markets generally.

Continuing market volatility as a result of recent market conditions or other events may have adverse effects on the Fund’s returns. The Sub-Adviser will monitor developments and seek to manage the Fund in a manner consistent with achieving the Fund’s investment objective, but there can be no assurance that it will be successful in doing so.

Credit Risk. If an issuer or guarantor of a fixed rate or floating rate debt security held by the Fund or a counterparty to a financial contract with the Fund defaults or is downgraded or is perceived to be less creditworthy, or if the value of the assets underlying a security declines, the value of the Fund’s portfolio will typically decline to some extent. The Fund could lose money if an issuer or guarantor of a fixed income security is unwilling or unable to make timely payments to meet its contractual obligation on an investment held by the Fund.

Liquidity Risk. Certain debt obligations may be difficult or impossible to sell at the time and price that the Sub-Adviser would like to sell. The Sub-Adviser may have to lower the price, sell other debt obligations or forego an investment opportunity, any of which may have a negative effect on the management or performance of the Fund. Liquidity risk may be magnified in an environment of rising interest rates or widening credit spreads in which investor redemptions of fixed income securities or fixed income funds may be higher than normal.

Duration Risk. Duration is a measure of the expected price volatility of a fixed-income security to changes in interest rates. The duration of a fixed-income security may be shorter than or equal to full maturity of a fixed-income security. Fixed-income securities with longer durations have more risk and will decrease in price as interest rates rise.

Mortgage-Backed and Asset-Backed Securities Risk. Mortgage-backed and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. Mortgage-backed securities are subject to “prepayment risk” (the risk that borrowers will repay a loan more quickly in periods of falling interest rates) and “extension risk” (the risk that borrowers will repay a loan more slowly in periods of rising interest rates). If the Fund invests in mortgage-backed or asset-backed securities that are subordinated to other interests in the same pool, the Fund may only receive payments after the pool’s obligations to other investors have been satisfied. An unexpectedly high rate of defaults on the assets held by a pool may limit substantially the pool’s ability to make payments of principal or interest to the Fund, reducing the values of those securities or in some cases rendering them worthless. The Fund’s investments in other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as additional risks associated with the nature of the assets and the servicing of those assets.

Negative Convexity Risk. Negative convexity risk is the risk that debt obligations, including mortgage-, asset-backed debt obligations and other callable securities, will be paid off by the borrower more slowly or quickly than anticipated, increasing or decreasing the average life of such debt obligations and the sensitivity of the prices of such debt obligations to future interest rate changes.

U.S. Government Obligations Risk. No assurance can be given that the U.S. government will provide financial support to U.S. government-sponsored agencies or instrumentalities where it is not specifically obligated to do so by law, such as the Federal National Mortgage Association (“Fannie Mae”) and the Federal Home Loan Mortgage Corporation (“Freddie Mac”). To the extent the Fund holds securities of such an issuer and that issuer defaults, the Fund might not be able to recover its investment from the U.S. government. Additionally, the U.S. government and its agencies and instrumentalities do not guarantee the market values of their securities, which may fluctuate.

Management and Strategy Risk. The value of your investment depends on the judgment of the Adviser or the Sub-Adviser about the quality, relative yield, value or market trends affecting a particular security, issuer, industry, sector or region, which may prove to be incorrect. Investment strategies employed by the Adviser or Sub-Adviser in selecting investments for the Fund may not result in an increase in the value of your investment or in overall performance equal to other investments.

Sector Focus Risk. The Fund may from time to time invest a larger portion of its assets in one or more asset classes, market segments or sectors of the economy than many other mutual funds, and thus will be more susceptible to negative events affecting those sectors.

Cybersecurity Risk. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, customer data (including private shareholder information), or proprietary information, or cause the Fund, the Adviser, the Sub-Adviser, and/or other service providers (including custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality. In an extreme case, a shareholder’s ability to exchange or redeem Fund shares may be affected.

Reliance on Technology Risk. The Fund’s trading strategies are highly reliant on technology, including hardware, software and telecommunications systems. In addition, data gathering, research, forecasting, order execution, trade allocation, risk management, operational, back office and accounting systems are all highly automated and computerized. Such automation and computerization relies on an extensive amount of both proprietary software and third-party hardware and software. Any unforeseeable failures, malfunctions, errors or problems with respect to these or other technologies may have a materially adverse effect on investors in the Fund or the Fund’s performance.

Yield Curve Risk. This is the risk that there is an adverse shift in market interest rates of fixed income investments. The risk is associated with either flattening or steepening of the yield curve, which is a result of changing yields among comparable bonds with different maturities. If the yield curve flattens, then the yield spread between long-and short-term interest rates narrows and the price of a bond will change. If the curve steepens, then the spread between the long- and short-term interest rates increases which means long-term bond prices decrease relative to short-term bond prices.

Performance

The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the performance of the Fund’s Class R6 shares from year to year and by showing how the average annual total returns of the Fund compare with the average annual total returns of a broad-based market index which also serves as the Fund’s benchmark. Updated performance information is available at the Fund’s website, www.northsquareinvest.com, or by calling the Fund at 1-855-551-5521.

The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Calendar-Year Total Return (before taxes) for Class R6 Shares

For each calendar year at NAV

The year-to-date return as of June 30, 2026 was 0.79%.

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. In certain cases, Return After Taxes on Distributions and Sale of Fund Shares may be higher than the other return figures for the same period. This will occur when a capital loss is realized upon the sale of Fund shares or provides an assumed tax benefit that increases the return. 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.

Investment Adviser and Sub-Adviser

North Square Investments, LLC is the Fund’s investment adviser. CSM Advisors, LLC, an affiliate of, and under common control with, the Adviser, serves as the Fund’s investment sub-adviser.

Portfolio Managers

The Sub-Adviser’s portfolio management team is comprised of four portfolio managers who are jointly and primarily responsible for the day-to-day management of the Fund’s portfolio. Brian S. Allen, CFA, CIO/Senior Vice President, Bryan R. Johanson, CFA, Senior Vice President, Jack P. White, CFA Director of Fixed Income/Senior Vice President and Zachary K. Hubert, CFA, Vice President. Each portfolio manager has been a portfolio manager of the Fund since its inception, except for Zachary K. Hubert who has been a portfolio manager of the Fund since 2024.

Purchase and Sale of Fund Shares

Currently, the Fund offers Class R6 shares and Class I shares. To purchase shares of the Fund, you must invest at least the minimum amount, shown for each class in the chart below. As described below, the minimums can be waived in certain circumstances and by certain financial institutions.

Fund shares are redeemable on any business day the New York Stock Exchange (the “NYSE”) is open for business, by written request or by telephone.

Tax Information

The Fund’s distributions are generally taxable, and will ordinarily be taxed as ordinary income, qualified dividend income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account. Shareholders investing through such tax-advantaged arrangements may be taxed later upon the withdrawal of monies from those arrangements.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), 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.