SIX CIRCLES FUNDS

Six Circles Tax Aware Intermediate Duration Fund

Supplement dated July 1, 2026

to the Statement of Additional Information

dated May 1, 2026, as supplemented (“SAI”)

On June 15, 2026, the Board of Trustees for the Six Circles Tax Aware Intermediate Duration Fund (the “Fund”) approved the addition of BlackRock Investment Management, LLC (“BlackRock”) as an additional sub-adviser to the Fund, effective July 1, 2026 (the “Effective Date”). On the Effective Date, BlackRock will begin managing Fund assets allocated to BlackRock by J.P. Morgan Private Investments Inc., the Fund’s adviser, pursuant to BlackRock’s Passive Treasury Strategy.

Accordingly, on the Effective Date, the SAI is hereby amended as follows:

The first paragraph under the “INVESTMENT ADVISER, SUB-ADVISERS AND SUB-SUB-ADVISERS – Sub-Advisers and Sub-Sub-Advisers” section of Part I of the SAI is hereby deleted and replaced with the following:

BlackRock and PIMCO serve as Sub-Advisers to the Ultra Short Duration Fund. BlackRock, Insight and PIMCO serve as Sub-Advisers to the Tax Aware Intermediate Duration Fund. BlackRock also serves as Sub-Adviser to the U.S. Unconstrained Equity Fund and the International Unconstrained Equity Fund. BlackRock, PIMCO and PGIM serve as Sub-Advisers to the Global Bond Fund. BIL, BSL and PGIML serve as Sub-Sub-Advisers to the Global Bond Fund. Capital, Nuveen, Allspring and BlackRock serve as Sub-Advisers to the Tax Aware Bond Fund. BlackRock, PGIM, Lord Abbett, RBC GAM (UK), Muzinich, PIMCO Mellon and Insight serve as Sub-Advisers to the Credit Opportunities Fund. BIL, PGIML and RBC GAM (US) serve as Sub-Sub-Advisers to the Credit Opportunities Fund. RIIS provides stand-by interim sub-advisory services for each of the Funds, to be utilized on an as needed basis in certain transitional circumstances involving a Fund Sub-Adviser. Each of BlackRock, BIL, BSL, Insight, PIMCO, PGIM, PGIML, Capital, Nuveen, Allspring, Lord Abbett, RBC GAM (UK), RBC GAM (US), Muzinich, Mellon and RIIS is independent of the Adviser. All Sub-Advisers discharge their responsibilities subject to the policies of the Trustees and the supervision of the Adviser. The Sub-Advisers are each paid a monthly fee equal to a percentage of the daily net assets of the Fund allocated to each Sub-Adviser, respectively, except that RIIS is paid a minimum per fund annual flat fee and/or a monthly fee equal to a percentage of daily net assets to the extent assets are allocated to RIIS as interim Sub-Adviser. The Sub-Sub-Advisers are each paid a fee from the Sub-Adviser that it has entered into a sub-sub-advisory agreement with.

The following information relating to BlackRock is added to the first table in the “PORTFOLIO MANAGERS – Portfolio Managers’ Other Accounts Managed – Sub-Advisers and Sub-Sub-Advisers” section of Part I of the SAI under the Tax Aware Intermediate Duration Fund:

SUP-6C-SAI-TAID-726

The following information relating to Black Rock is added to the second table in the “PORTFOLIO MANAGERS — Portfolio Managers’ Other Accounts Managed — Sub-Advisers and Sub-Sub-Advisers” section of Part I of the SAI under the Tax Aware Intermediate Duration Fund:

The disclosure related to BlackRock in the “POTENTIAL CONFLICTS OF INTEREST — Conflicts of Interest Relating to the Sub-Advisers and Sub-Sub-Advisers” section of the Part II of the SAI is hereby deleted and replaced with the following:

BlackRock

BlackRock has built a professional working environment, firm-wide compliance ^culture and compliance procedures and systems designed to protect against potential incentives that may favor one account over another. BlackRock has adopted policies and procedures that address the allocation of investment opportunities, execution of portfolio transactions, personal trading by employees and other potential conflicts of interest that are designed to ensure that all client accounts are treated equitably over time. Nevertheless, BlackRock furnishes investment management and advisory services to numerous clients in addition to the Fund, and BlackRock may, consistent with applicable law, make investment recommendations to other clients or accounts (including accounts which are hedge funds or have performance or higher fees paid to BlackRock, or in which portfolio managers have a personal interest in the receipt of such fees), which may be the same as or different from those made to the Fund. In addition, BlackRock, its affiliates and significant shareholders and any officer, director, shareholder or employee may or may not have an interest in the securities whose purchase and sale BlackRock recommends to the Fund. BlackRock, or any of its affiliates or significant shareholders, or any officer, director, shareholder, employee or any member of their families may take different actions than those recommended to the Fund by BlackRock with respect to the same securities. Moreover, BlackRock may refrain from rendering any advice or services concerning securities of companies of which any of BlackRock’s (or its affiliates’ or significant shareholders’) officers, directors or employees are directors or officers, or companies as to which BlackRock or any of its affiliates or significant shareholders or the officers, directors and employees of any of them has any substantial economic interest or possesses material non-public information. Certain portfolio managers also may manage accounts whose investment strategies may at times be opposed to the strategy utilized for a fund. Certain portfolio managers also may manage accounts whose investment strategies may at times be opposed to the strategy utilized for a fund. It should also be noted that Ms. Liu and Messrs. Dickstein, MacLellan, Mehta, Garfin, Delbos, Radell, Savi, Franklin, Mathieson, Acharya, Mauro, Tom and Graves may be managing hedge fund and/or long only accounts, or may be part of a team managing hedge fund and/or long only accounts, subject to incentive fees. Ms. Liu and Messrs. Dickstein, MacLellan, Mehta, Garfin, Delbos, Radell, Savi, Franklin, Mathieson, Acharya, Mauro, Tom and Graves may therefore be entitled to receive a portion of any incentive fees earned on such accounts.

As a fiduciary, BlackRock owes a duty of loyalty to its clients and must treat each client fairly. When BlackRock purchases or sells securities for more than one account, the trades must be allocated in a manner consistent with its fiduciary duties. BlackRock attempts to allocate investments in a fair and equitable manner among client accounts, with no account receiving preferential treatment. To this end, BlackRock has adopted policies that are intended to ensure reasonable efficiency in client transactions and provide BlackRock with sufficient flexibility to allocate investments in a manner that is consistent with the particular investment discipline and client base, as appropriate.

The disclosure related to BlackRock in the “PORTFOLIO MANAGER COMPENSATION – BlackRock (including BIL and BSL)” section of the Part II of the SAI is hereby deleted and replaced with the following:

The discussion below describes the portfolio managers’ compensation as of December 31, 2025.

BlackRock’s financial arrangements with its portfolio managers, its competitive compensation and its career path emphasis at all levels reflect the value senior management places on key resources. Compensation may include a variety of components and may vary from year to year based on a number of factors. The principal components of compensation include a base salary, a performance-based discretionary bonus, participation in various benefits programs and one or more of the incentive compensation programs established by BlackRock.

Base Compensation. Generally, portfolio managers receive base compensation based on their position with the firm.

Discretionary Incentive Compensation – Messrs. Sietsema, White and Waldron and Ms. Hsui

Discretionary incentive compensation is a function of several components: the performance of BlackRock, Inc., the performance of the portfolio manager’s group within BlackRock, the investment performance, including risk-adjusted returns, of the firm’s assets under management or supervision by that portfolio manager relative to predetermined benchmarks, and the individual’s performance and contribution to the overall performance of these portfolios and BlackRock. In most cases, these benchmarks are the same as the benchmark or benchmarks against which the performance of the Funds or other accounts managed by the portfolio managers are measured. Among other things, BlackRock’s Chief Investment Officers make a subjective determination with respect to each portfolio manager’s compensation based on the performance of the Funds and other accounts managed by each portfolio manager relative to the various benchmarks. Performance of fixed income and multi-asset class funds is measured on a pre-tax and/or after-tax basis over various time periods including 1-, 3- and 5- year periods, as applicable. Performance of index funds is based on the performance of such funds relative to pre-determined tolerance bands around a benchmark, as applicable. The performance of Messrs. Sietsema, Waldron and White and Ms. Hsui are not measured against a specific benchmark.

Discretionary Incentive Compensation – Messrs. Acharya, Delbos, Dickstein, Garfin, MacLellan, Mehta and Radell and Ms. Liu

Discretionary incentive compensation is a function of several components: the performance of BlackRock, Inc., the performance of the portfolio manager’s group within BlackRock, the investment performance, including risk-adjusted returns, of the firm’s assets under management or supervision by that portfolio manager relative to predetermined benchmarks, and the individual’s performance and contribution to the overall performance of these portfolios and BlackRock. In most cases, these benchmarks are the same as the benchmark or benchmarks against which the performance of the Funds or other accounts managed by the portfolio managers are measured. Among other things, BlackRock’s Chief Investment Officers make a subjective determination with respect to each portfolio manager’s compensation based on the performance of the Funds and other accounts managed by each portfolio manager relative to the various benchmarks. Performance of fixed income funds is measured on a pre-tax and/or after-tax basis over various time periods including 1-, 3- and 5- year periods, as applicable. With respect to these portfolio managers, such benchmarks for the Funds and other accounts are:

Discretionary Incentive Compensation – Messers. Mauro, Tom and Graves

Discretionary incentive compensation is a function of several components: the performance of BlackRock, Inc., the performance of the portfolio manager’s group within BlackRock, the investment performance, including risk-adjusted returns, of the firm’s assets under management or supervision by that portfolio manager relative to predetermined benchmarks, and the individual’s performance and contribution to the overall performance of these portfolios and BlackRock. In most cases, these benchmarks are the same as the benchmark or benchmarks against which the performance of the Funds or other accounts managed by the portfolio managers are measured. Among other things, BlackRock’s Chief Investment Officers make a subjective determination with respect to each portfolio manager’s compensation based on the performance of the Funds and other accounts managed by each portfolio manager relative to the various benchmarks. Performance of fixed income funds is measured on a pre-tax and/or after-tax basis over various time periods including 1-, 3- and 5- year periods, as applicable. With respect to these portfolio managers, such benchmarks for the Fund and other accounts are:

Discretionary Incentive Compensation – Messrs. Franklin, Mathieson and Savi

Discretionary incentive compensation is a function of several components: the performance of BlackRock, Inc., the performance of the portfolio manager’s group within BlackRock, the investment performance, including risk-adjusted returns, of the firm’s assets under management or supervision by that portfolio manager relative to predetermined benchmarks, and the individual’s performance and contribution to the overall performance of these portfolios and BlackRock. Among other things, BlackRock’s Chief Investment Officers make a subjective determination with respect to each portfolio manager’s compensation based on the performance of the Funds and other accounts managed by each portfolio manager relative to the various benchmarks. Performance is generally assessed over trailing 1-, 3-, and 5- year periods relative to applicable benchmarks. The performance of Messrs. Franklin, Mathieson and Savi are not measured against a specific benchmark.

Distribution of Discretionary Incentive Compensation. Discretionary incentive compensation is distributed to portfolio managers in a combination of cash, deferred BlackRock, Inc. stock awards, and/or deferred cash awards that notionally track the return of certain BlackRock investment products.

Portfolio managers receive their annual discretionary incentive compensation in the form of cash. Portfolio managers whose total compensation is above a specified threshold also receive deferred BlackRock, Inc. stock awards annually as part of their discretionary incentive compensation. Paying a portion of discretionary incentive compensation in the form of deferred BlackRock, Inc. stock puts compensation earned by a portfolio manager for a given year “at risk” based on BlackRock’s ability to sustain and improve its performance over future periods. In some cases, additional deferred BlackRock, Inc. stock may be granted to certain key employees as part of a long-term incentive award to aid in retention, align interests with long-term shareholders and motivate performance. Deferred BlackRock, Inc. stock awards are generally granted in the form of BlackRock, Inc. restricted stock units that vest pursuant to the terms of the applicable plan and, once vested, settle in BlackRock, Inc. common stock. The portfolio managers of these Funds have deferred BlackRock, Inc. stock awards.

For certain portfolio managers, a portion of the discretionary incentive compensation is also distributed in the form of deferred cash awards that notionally track the returns of select BlackRock investment products they manage, which provides direct alignment of portfolio manager discretionary incentive compensation with investment product results. Deferred cash awards vest ratably over a number of years and, once vested, settle in the form of cash. Only portfolio managers who manage specified products and whose total compensation is above a specified threshold are eligible to participate in the deferred cash award program.

Other Compensation Benefits. In addition to base salary and discretionary incentive compensation, portfolio managers may be eligible to receive or participate in one or more of the following:

Incentive Savings Plans — BlackRock, Inc. has created a variety of incentive savings plans in which BlackRock employees are eligible to participate, including a 401(k) plan, the BlackRock Retirement Savings Plan (RSP), and the BlackRock Employee Stock Purchase Plan (ESPP). The employer contribution components of the RSP include a company match equal to 50% of the first 8% of eligible pay contributed to the plan capped at $5,000 per year, and a company retirement contribution equal to 3-5% of eligible compensation up to the Internal Revenue Service limit ($350,000 for 2025). The RSP offers a range of investment options, including registered investment companies and collective investment funds managed by the firm. BlackRock contributions follow the investment direction set by participants for their own contributions or, absent participant investment direction, are invested into a target date fund that corresponds to, or is closest to, the year in which the participant attains age 65. The ESPP allows for investment in BlackRock common stock at a 5% discount on the fair market value of the stock on the purchase date. Annual participation in the ESPP is limited to the purchase of 1,000 shares of common stock or a dollar value of $25,000 based on its fair market value on the purchase date. All of the eligible portfolio managers are eligible to participate in these plans.

INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE

STATEMENT OF ADDITIONAL INFORMATION FOR FUTURE REFERENCE

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