Oct. 31, 2024

Prospectus Summary | International Sustainability Core 1 Portfolio

International Sustainability Core 1 Portfolio

Investment Objective

The investment objective of the International Sustainability Core 1 Portfolio (the “Portfolio”) is long-term capital appreciation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.

Shareholder Fees (fees paid directly from your investment)

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

Annual Fund Operating Expenses	Prospectus Summary International Sustainability Core 1 Portfolio Institutional Class
Management Fee	0.20%
Other Expenses	0.04%
Total Annual Fund Operating Expenses	0.24%

EXAMPLE

This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be:

Expense Example	Prospectus Summary International Sustainability Core 1 Portfolio Institutional Class USD ($)
1 Year	$ 25
3 Years	77
5 Years	135
10 Years	$ 306

Expense Example, No Redemption	Prospectus Summary International Sustainability Core 1 Portfolio Institutional Class USD ($)
1 Year	$ 25
3 Years	77
5 Years	135
10 Years	$ 306

PORTFOLIO TURNOVER

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover 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 Portfolio’s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was 14% of the average value of its investment portfolio.

Principal Investment Strategies

To achieve the International Sustainability Core 1 Portfolio’s investment objective, Dimensional Fund Advisors LP (the “Advisor”) implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Portfolio’s design emphasizes long-term drivers of expected returns identified by the Advisor’s research, while balancing risk through broad diversification across companies and sectors. The Advisor’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs.

The International Sustainability Core 1 Portfolio is designed to purchase a broad and diverse group of securities within a market capitalization weighted universe (e.g., the larger the company, the greater the proportion of the universe it represents) of non-U.S. companies associated with developed markets that have been authorized for

investment by the Advisor’s Investment Committee (the “International Universe”). The Portfolio invests in companies of all sizes and seeks to moderately increase the Portfolio’s exposure to smaller capitalization, lower relative price, and higher profitability companies as compared to their representation in the International Universe, while adjusting the composition of the Portfolio based on sustainability considerations. The Portfolio may seek to achieve a moderately increased exposure to smaller capitalization, lower relative price, and higher profitability companies by decreasing the allocation of the Portfolio’s assets to larger capitalization, higher relative price, or lower profitability companies relative to their weight in the International Universe. An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to change from time to time. Additionally, the representation of securities in the Portfolio as compared to their representation in the International Universe may be affected by the Portfolio's sustainability considerations.

The International Sustainability Core 1 Portfolio intends to purchase securities of companies associated with developed market countries that the Advisor has designated as approved markets. As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in equity securities. The Advisor determines company size on a country or region specific basis and based primarily on market capitalization. The percentage by which the Portfolio’s allocation to securities of the largest high relative price companies is reduced will change due to market movements, sustainability considerations and other factors.

The Advisor may also increase or reduce the International Sustainability Core 1 Portfolio’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum, short-run reversals, and investment characteristics. In assessing a company’s investment characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses for assessing a company’s investment characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs.

The International Sustainability Core 1 Portfolio may gain exposure to companies associated with approved markets by purchasing equity securities in the form of depositary receipts, which may be listed or traded outside the issuer’s domicile country. The Portfolio may purchase or sell futures contracts and options on futures contracts for foreign or U.S. equity securities and indices, to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio’s investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer cash balances from one currency to another currency. The above-referenced investments are not subject to, although they may incorporate, the Portfolio’s sustainability considerations.

The International Sustainability Core 1 Portfolio may lend its portfolio securities to generate additional income.

The Advisor intends to take into account certain sustainability considerations when making investment decisions for the International Sustainability Core 1 Portfolio. Relative to a fund without these considerations that otherwise has the same investment objective, strategies, and policies as the Portfolio, the Portfolio will generally have excluded, and have less overall weight in, securities of companies that, according to the Portfolio’s sustainability considerations, may be less sustainable as compared to other companies in the Portfolio’s investment universe. Similarly, relative to such a fund, the Portfolio will generally have more overall weight in securities of companies that, according to the Portfolio’s sustainability considerations, may be more sustainable as compared to other companies in the Portfolio’s investment universe. In particular, the Advisor ranks companies (i) relative to the broader equity market based on potential emissions from reserves and scaled potential emissions from reserves and the securities of the worst-ranking companies are generally underweighted or excluded, (ii) relative to the applicable universe of securities based on carbon intensity and the securities of the worst-ranking companies are generally underweighted or excluded and (iii) relative to their sector peers based primarily on carbon intensity, but also considering several other factors, including controversies related to land use and biodiversity, toxic spills and releases, operational waste, and water management, and the securities of the worst-ranking companies are generally underweighted or excluded and the securities of the remaining companies are generally overweighted or neutral-weighted. In

addition, the Advisor seeks to exclude securities of companies based on sustainability considerations relating to coal, factory farming, palm oil, cluster munitions and landmines, tobacco, child labor, civilian firearms, private prisons, and material involvement in severe environmental, social, or governance controversies that indicate operations inconsistent with responsible business conduct standards (such as those defined by the United Nations Global Compact Principles and the Organization for Economic Co-operation and Development Guidelines for Multinational Enterprises). For a more detailed description of these sustainability considerations, see “Applying the Portfolios’ Sustainability Considerations”. The Advisor engages third party service providers to provide research information relating to the Portfolio’s sustainability considerations with respect to securities in the Portfolio, where information is available from such providers. The Advisor also may use, or supplement third party service providers’ data with, proprietary research relating to certain sustainability considerations where information is not available or has not been obtained from third party service providers engaged by the Advisor.

The Advisor periodically reviews the Portfolio’s sustainability considerations and the Portfolio may periodically modify, add, or remove sustainability considerations.

Principal Risks

Risk Table - Prospectus Summary - International Sustainability Core 1 Portfolio

Risk [Text Block]

Principal Risks

Principal Risks

Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a description of principal risks of investing in the Portfolio.

Risk Lose Money [Member]

Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.

Risk Not Insured [Member]

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

Equity Market Risk

Equity Market Risk: Even a long-term investment approach cannot guarantee a profit. Economic, market, political, and issuer-specific conditions and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of falling prices.

Profitability Investment Risk

Profitability Investment Risk: High relative profitability stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause a fund to at times underperform equity funds that use other investment strategies.

Value Investment Risk

Value Investment Risk: Value stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause a fund to at times underperform equity funds that use other investment strategies. Value stocks can react differently to political, economic, and industry developments than the market as a whole and other types of stocks. Value stocks also may underperform the market for long periods of time.

Small and Mid-Cap Company Risk

Small and Mid-Cap Company Risk: Securities of small and mid-cap companies are often less liquid than those of large companies and this could make it difficult to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies to adverse business or economic developments and they may have more limited resources.

Foreign Securities and Currencies Risk

Foreign Securities and Currencies Risk: Foreign securities prices may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.

Foreign issuers 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. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic issuers in U.S. courts.

Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications to the holders

of such receipts, or to pass through to them any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily available public information about the issuer.

Geographic Focus Risk

Geographic Focus Risk: If a fund focuses its investments in securities of issuers located in a particular country or region, the fund may be subjected, to a greater extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Sustainability Consideration Investment Risk

Sustainability Consideration Investment Risk: A fund that takes into account sustainability considerations may limit the number of investment opportunities available to the fund, and as a result, at times, may underperform funds that are not subject to such sustainability considerations. For example, a fund may decline to purchase, or underweight its investment in, certain securities due to sustainability considerations when other investment considerations would suggest that a more significant investment in such securities would be advantageous. A fund may also overweight its investment in certain securities due to sustainability considerations when other investment considerations would suggest that a lesser investment in such securities would be advantageous. In addition, a fund may sell or retain certain securities due to sustainability considerations when it is otherwise disadvantageous to do so. The sustainability considerations may also cause a fund’s industry allocations to deviate from those of funds without these considerations and of conventional benchmarks. The Advisor may also not be able to assess the sustainability of each company with securities eligible for purchase. For example, the Advisor may not be able to determine all of the sustainability considerations for each company because the third party service providers may not have data on the entire universe of companies with securities considered by the Advisor, or may not have information with respect to each factor considered as a sustainability consideration. Furthermore, “sustainability” is not uniformly defined, and there are significant differences in interpretations of what it means for a company to meet sustainability criteria. A fund’s exposure to companies, industries and sectors of the market may be affected by sustainability data obtained that may be inaccurate and the Advisor’s assessment of a company’s sustainability may differ from assessments made by other funds, managers, or investors. As a result, there is no guarantee that a fund’s investments will reflect the sustainability considerations of any particular investor.

Derivatives Risk

Derivatives Risk: Derivatives are instruments, such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as the risk of improper valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal amount invested.

Securities Lending Risk

Securities Lending Risk: Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. Securities lending also may have certain adverse tax consequences.

Operational Risk

Operational Risk: Operational risks include human error, changes in personnel, system changes, faults in communication, and failures in systems, technology, or processes. Various operational events or circumstances are outside a fund’s or its advisor’s control, including instances at third parties. A fund and its advisor seek to reduce these operational risks through controls and procedures. However, measures that seek to reduce these operational risks through controls and procedures may not address every possible risk and may be inadequate to address these risks.

Cyber Security Risk

Cyber Security Risk: A fund and its service providers’ use of internet, technology and information systems may expose the fund to potential risks linked to cyber security breaches of those technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational functionality.

Performance

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio 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 the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

International Sustainability Core 1 Portfolio Institutional Class Shares —Total Returns

Annualized Returns (%)

Average Annual Total Returns - Prospectus Summary - International Sustainability Core 1 Portfolio	Label	1 Year	5 Years	10 Years
Institutional Class	Return Before Taxes	5.00%	5.06%	5.77%
Institutional Class | After Taxes on Distributions	Return After Taxes on Distributions	4.30%	4.51%	5.20%
Institutional Class | After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Portfolio Shares	3.54%	3.95%	4.56%
MSCI World ex USA Index (net dividends)	MSCI World ex USA Index (net dividends)
MSCI World ex USA Index (net dividends)		4.70%	5.10%	5.26%

The implementation and management of the Advisor’s “Sustainability” portfolios, including without limitation, the International Sustainability Core 1 Portfolio is protected by U.S. Patent Nos. 7,596,525 B1, 7,599,874 B1 and 8,438,092 B2.