Total

GMO Multi-Sector Fixed Income Fund

GMO MULTI-SECTOR FIXED INCOME FUND

Investment objective

Total return in excess of that of its benchmark, the Bloomberg Barclays U.S. Aggregate Index.

Fees and expenses

The table below describes the fees and expenses that you may bear for each class of shares 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 table and example below.

Annual Fund operating expenses (expenses that you bear each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - GMO Multi-Sector Fixed Income Fund		Class III	Class IV	Class R6	Class I
Management fee	[1]	0.40%	0.35%	0.40%	0.40%
Other expenses		0.09%	0.08%	0.09%	0.19%	[2]
Acquired fund fees and expenses (underlying fund expenses)	[3]	0.21%	0.21%	0.21%	0.21%
Total annual fund operating expenses		0.70%	0.64%	0.70%	0.80%
Expense reimbursement/waiver	[1]	(0.19%)	(0.19%)	(0.19%)	(0.19%)	[2]
Total annual fund operating expenses after expense reimbursement/ waiver (fund and underlying fund expenses)		0.51%	0.45%	0.51%	0.61%

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, regardless of whether or not you redeem your shares at the end of such periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same as those shown in the table. The one year amounts shown reflect the expense reimbursement and waiver noted in the expense table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - GMO Multi-Sector Fixed Income Fund - USD ($)	1 Year	3 Years	5 Years	10 Years
Class III	52	205	371	853
Class IV	46	186	338	780
Class R6	52	205	371	853
Class I	62	236	425	972

Expense Example No Redemption - GMO Multi-Sector Fixed Income Fund - USD ($)	1 Year	3 Years	5 Years	10 Years
Class III	52	205	371	853
Class IV	46	186	338	780
Class R6	52	205	371	853
Class I	62	236	425	972

Portfolio turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities. A higher portfolio turnover rate may result in higher transaction costs and, for holders of Fund shares subject to U.S. taxes, higher income taxes. These transaction costs, which are not reflected in Annual Fund operating expenses or in the Example, affect the Fund’s performance. During its fiscal year ended February 28, 2021, the Fund’s portfolio turnover rate (excluding short-term investments) was 335% of the average value of its portfolio securities. That portfolio turnover rate includes investments in U.S. Treasury Fund, which the Fund uses as a short-term investment vehicle for cash management. The Fund’s portfolio turnover rate during its fiscal year ended February 28, 2021, excluding transactions in U.S. Treasury Fund and other short-term investments, was 262% of the average value of its portfolio securities.

Principal investment strategies

The Fund’s investment program has two principal components. One component seeks to achieve a return commensurate with that of the Fund’s benchmark. The second component seeks to add value relative to the Fund’s benchmark by making investments that often will not track its benchmark. These investments principally include global interest rate and currency derivatives and indirect (through other GMO Funds and exchange-traded funds (ETFs)) and direct investments in asset-backed, corporate, government and emerging country debt securities. This second component can cause the Fund’s performance to differ significantly from that of its benchmark.

In deciding what investments to make in global interest rate and currency markets and the size of those investments, GMO uses a quantitative approach that considers fundamental factors (e.g., inflation and current account positions) as well as price-based factors (e.g., interest and exchange rates). GMO evaluates the relative attractiveness of particular markets and instruments using various fixed income risk premium measures, which typically include term structure, foreign exchange, volatility, credit, liquidity and other risks. GMO also may consider the relative attractiveness of yield curve and duration positions in these markets. In addition, GMO seeks to identify opportunities arising from unusual market conditions not otherwise identified by its quantitative models and uses various portfolio construction techniques to manage risk.

In making decisions regarding credit investments, GMO seeks to take advantage of its proprietary investment models to allocate the Fund’s assets opportunistically among credit sectors (e.g., investment grade and high yield) and to systematically identify investments within those credit sectors with the best risk/return profiles. In selecting credit investments, the models used by GMO take into account value criteria, quality factors (including ESG (environmental, social, and governance) criteria), momentum, and liquidity.

The factors GMO considers and investment methods GMO uses can change over time. In pursuing its investment program, the Fund may make investments in: (i) bonds denominated in various currencies, including non-U.S. and U.S. government bonds, agency bonds, and corporate bonds, asset-backed securities, and emerging country debt securities; (ii) shares of Opportunistic Income Fund (to provide exposure to credit (particularly, asset-backed) markets); (iii) shares of Emerging Country Debt Fund (“ECDF”) (to provide exposure to emerging country debt securities); (iv) shares of High Yield Fund (to provide exposure to high yield bonds); (v) ETFs; and (vi) shares of U.S. Treasury Fund, money market funds unaffiliated with GMO, and the types of investments typically held by money market funds. The Fund may also engage in short sales and invest in derivatives, including without limitation, to-be-announced transactions, futures contracts, currency and interest rate options, currency forwards, repurchase agreements and reverse repurchase agreements, and swap contracts, such as swaps on securities and securities indices, total return swaps, interest rate swaps, and currency swaps, and other types of derivatives.

The Fund has and expects to continue to have material exposure to U.S. and non-U.S. bonds, U.S. asset-backed securities, and emerging country debt securities that are below investment grade (below investment grade debt investments are commonly referred to as “high yield” or “junk bonds,” although these terms are not generally used to refer to emerging country debt securities or asset-backed securities).

GMO normally seeks to maintain an annualized tracking error (standard deviation) relative to the Fund’s benchmark of 1-3% over a complete market cycle and an estimated interest rate duration within 2 years of the benchmark’s duration (approximately 6 years as of 5/31/21). For an additional discussion of duration, see “Additional Information About the Funds’ Investment Strategies, Risks and Expenses — Bond Funds — Duration.”

Under normal circumstances, the Fund invests directly and indirectly (e.g., through other GMO Funds or derivatives) at least 80% of its assets in bonds (see “Name Policies”). The term “bond” includes (i) obligations of an issuer to make payments on future dates of principal, interest (whether fixed or variable) or both and (ii) synthetic debt instruments created by GMO by using derivatives (e.g., a futures contract, swap contract, currency forward, or option).

The Fund may invest in securities of companies of any market capitalization. In addition, the Fund may lend its portfolio securities. The Fund is not limited in its use of derivatives or in the total notional value of its derivative positions. Leverage is not a principal component of the Fund’s investment strategy. However, because of its derivative positions, the Fund may at times have gross investment exposure in excess of its net assets (i.e. the Fund may be leveraged) and therefore may be subject to heightened risk of loss during those times. The Fund’s performance can depend substantially on the performance of assets or indices underlying its derivatives even though it does not own those assets or indices.

Principal risks of investing in the Fund

The value of the Fund’s shares changes with the value of the Fund’s investments. Many factors can affect this value, and you may lose money by investing in the Fund. The Fund is a non-diversified investment company under the Investment Company Act of 1940, as amended, and therefore a decline in the market price of a particular security held by the Fund may affect the Fund’s performance more than if the Fund were a diversified investment company. The principal risks of investing in the Fund are summarized below. For a more complete discussion of these risks, see “Additional Information about the Funds’ Investment Strategies, Risks, and Expenses” and “Description of Principal Risks.”

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Market Risk – Fixed Income – The market price of a fixed income investment can decline due to market-related factors, including rising interest rates and widening credit spreads, or decreased liquidity due, for example, to market uncertainty about the value of a fixed income investment (or class of fixed income investments).

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Credit Risk – The Fund runs the risk that the issuer or guarantor of a fixed income investment or the obligors of obligations underlying an asset-backed security will be unable or unwilling to satisfy their obligations to pay principal and interest or otherwise to honor their obligations in a timely manner. The market price of a fixed income investment will normally decline as a result of the failure of an issuer, guarantor, or obligor to meet its payment obligations or in anticipation of such failure. Below investment grade investments have speculative characteristics, and negative changes in economic conditions or other circumstances are more likely to impair the ability of issuers of those investments to make principal and interest payments than issuers of investment grade investments.

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Management and Operational Risk – The Fund runs the risk that GMO’s investment techniques will fail to produce desired results. GMO uses quantitative models as part of its investment process. GMO’s models may not accurately predict future market movements. In addition, GMO’s models rely on assumptions and data that are subject to limitations (e.g., inaccuracies, staleness) that could adversely affect their predictive value. The Fund also runs the risk that GMO’s assessment of an investment (including a security’s fundamental fair (or intrinsic) value) is wrong or that deficiencies in GMO’s or another service provider’s internal systems or controls will cause losses for the Fund or impair Fund operations.

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Derivatives and Short Sales Risk – The use of derivatives involves the risk that their value may not change as expected relative to changes in the value of the underlying assets, pools of assets, rates, currencies or indices. Derivatives also present other risks, including market risk, illiquidity risk, currency risk, credit risk, and counterparty risk. The market price of an option is affected by many factors, including changes in the market prices or dividend rates of underlying securities (or in the case of indices, the securities in such indices); the time remaining before expiration; changes in interest rates or exchange rates; and changes in the actual or perceived volatility of the relevant stock market and underlying securities. The Fund may create short investment exposure by taking a derivative position in which the value of the derivative moves in the opposite direction from the price of an underlying asset, pool of assets, rate, currency or index. The risks of loss associated with derivatives that provide short investment exposure and short sales of securities are theoretically unlimited.

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Market Risk – Asset-Backed Securities – The market price of asset-backed securities, like that of other fixed income investments with complex structures, can decline for a variety of reasons, including market uncertainty about their credit quality and the reliability of their payment streams. Payment streams associated with asset-backed securities held by the Fund depend on many factors (e.g., the cash flow generated by the assets backing the securities, deal structure, creditworthiness of any credit-support provider, and reliability of various other service providers with access to the payment stream), and a problem in any of these factors can lead to a reduction in the payment stream GMO expected the Fund to receive when the Fund purchased the asset-backed security. During periods of deteriorating economic conditions, such as recessions or periods of rising unemployment, delinquencies and losses generally increase, sometimes dramatically, with respect to securitizations involving loans, sales contracts, receivables and other obligations underlying asset-backed securities. The effects of the COVID-19 virus, and governmental responses to the effects of the virus, may result in increased delinquencies and losses and have other, potentially unanticipated, adverse effects on such investments and the markets for those investments.

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Currency Risk – Fluctuations in exchange rates can adversely affect the market value of the Fund’s foreign currency holdings and investments denominated in foreign currencies.

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Illiquidity Risk – Low trading volume, lack of a market maker, large position size, or legal restrictions may limit or prevent the Fund from selling particular securities or closing derivative positions at desirable prices.

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Futures Contracts Risk – The loss to the Fund resulting from its use of futures contracts is potentially unlimited. Futures markets are highly volatile, and the use of futures contracts increases the volatility of the Fund’s net asset value. A liquid secondary market may not exist for any particular futures contract at any particular time, and the Fund may be unable when it wishes to effect closing transactions to terminate its exposure under that contract. When the Fund uses futures contracts for hedging purposes, it runs the risk that changes in the prices of the contracts will not correlate perfectly with changes in the securities, index, or other asset underlying the contracts or movements in the prices of the Fund’s investments that are subject to the hedge. In addition, the Fund may be unable to recover or may be delayed in recovering margin or other amounts deposited with a futures commission merchant or futures clearinghouse. Foreign futures contracts are often less liquid and more volatile than U.S. futures contracts.

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Fund of Funds Risk – The Fund is indirectly exposed to all of the risks of an investment in the underlying funds in which it invests, including the risk that those underlying funds will not perform as expected. Because the Fund bears the fees and expenses of the underlying funds in which it invests, the increase in fees and expenses of an underlying fund or a reallocation of the Fund’s investments to underlying funds with higher fees or expenses will increase the Fund’s total expenses.

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Non-U.S. Investment Risk – The market prices of many non-U.S. securities (particularly of companies tied economically to emerging countries) fluctuate more than those of U.S. securities. Many non-U.S. securities markets (particularly emerging markets) are less stable, smaller, less liquid, and less regulated than U.S. securities markets, and the cost of trading in those markets often is higher than in U.S. securities markets. In addition, issuers of non-U.S. securities (particularly those tied economically to emerging countries) often are not subject to as much regulation as U.S. issuers, and the reporting, recordkeeping, accounting, custody, and auditing standards to which those issuers are subject often are not as rigorous as U.S. standards. In addition, the Fund may be subject to non-U.S. taxes, potentially on a retroactive basis, on (i) capital gains it realizes or dividends, interest, or other amounts it realizes or accrues in respect of non-U.S.

investments; (ii) transactions in those investments; and (iii) repatriation of proceeds generated from the sale or other disposition of those investments. Also, the Fund needs a license to invest directly in securities traded in many non-U.S. securities markets, and the Fund is subject to the risk that it could not invest if its license were terminated or suspended. In some non-U.S. securities markets, prevailing custody and trade settlement practices (e.g., the requirement to pay for securities prior to receipt) expose the Fund to credit and other risks. Further, adverse changes in investment regulations, capital requirements or exchange controls could adversely affect the value of the Fund’s investments. These and other risks (e.g., nationalization, expropriation or other confiscation of assets of non-U.S. issuers, limitations on, or difficulties enforcing, legal judgments, contractual rights, or other remedies) tend to be greater for investments in the securities of companies tied economically to emerging countries. The economies of emerging countries often depend predominantly on only a few industries or revenues from particular commodities, and often are more volatile than the economies of developed countries.

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Counterparty Risk – The Fund runs the risk that the counterparty to a derivatives contract, a clearing member used by the Fund to hold a cleared derivatives contract, or a borrower of the Fund’s securities is unable or unwilling to make timely settlement payments, return the Fund’s margin or otherwise honor its obligations.

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Focused Investment Risk – Investments focused in countries, regions, sectors, industries, asset classes, or issuers that are subject to the same or similar risk factors and investments whose prices are closely correlated, such as the Fund’s investments in non-U.S. government bonds and asset-backed securities secured by different types of consumer debt (e.g., credit-card receivables, automobile loans, and home equity loans), are subject to greater overall risk than investments that are more diversified or whose prices are not as closely correlated.

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Leveraging Risk – The use of derivatives and securities lending creates leverage. Leverage increases the Fund’s losses when the value of its investments (including derivatives) declines. In addition, the Fund’s portfolio will be leveraged if it exercises its right to delay payment on a redemption, and losses will result if the value of the Fund’s assets declines between the time a redemption request is deemed to be received by the Fund and the time the Fund liquidates assets to meet that request.

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Large Shareholder Risk – To the extent that a large number of shares of the Fund is held by a single shareholder (e.g., an institutional investor or another GMO Fund) or a group of shareholders with a common investment strategy (e.g., GMO asset allocation accounts), the Fund is subject to the risk that a redemption by those shareholders of all or a large portion of their Fund shares will require the Fund to sell securities at disadvantageous prices, disrupt the Fund’s operations, or force the Fund’s liquidation.

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Market Disruption and Geopolitical Risk – Geopolitical and other events (e.g., wars, pandemics, sanctions, terrorism) may disrupt securities markets and adversely affect global economies and markets. Those events, as well as other changes in non-U.S. and U.S. economic and political conditions, could exacerbate other risks or otherwise reduce the value of the Fund’s investments.

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Smaller Company Risk – Smaller companies may have limited product lines, markets, or financial resources, lack the competitive strength of larger companies, have less experienced managers or depend on a few key employees. The securities of companies with smaller market capitalizations often are less widely held and trade less frequently and in lesser quantities, and their market prices often fluctuate more, than the securities of companies with larger market capitalizations.

Performance

The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s annual total returns from year to year for the periods indicated and by comparing the Fund’s average annual total returns for different calendar periods with those of a broad-based index. Share classes not shown would have substantially similar annual returns to those below because all share classes invest in the same portfolio of securities. Annual returns vary among share classes to the extent that they bear different expenses. Share classes that bear higher expenses than the share classes shown below would have lower returns. 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 your tax situation and may differ from those shown. After-tax returns shown are not relevant if you are tax-exempt or if you hold your Fund shares through tax-advantaged arrangements (such as a 401(k) plan or individual retirement account). After-tax returns are shown for Class III shares only; after-tax returns for other classes will vary. Updated performance information for the Fund is available at www.gmo.com. Past performance (before and after taxes) is not an indication of future performance.

Annual Total Returns/Class III SharesYears Ending December 31

Highest Quarter: 4.47% (2Q2020)
Lowest Quarter: -3.57% (2Q2013)
Year-to-Date (as of 3/31/21): -4.66%

Average Annual Total Returns Periods Ending December 31, 2020

Average Annual Returns - GMO Multi-Sector Fixed Income Fund	1 Year	5 Years	10 Years	Since Inception	Inception Date
Class III	7.88%	5.04%	5.18%	5.44%	Apr. 30, 1997
Class IV	7.95%	5.10%	5.24%	4.48%	Jul. 26, 2005
After Taxes on Distributions | Class III	4.40%	2.93%	3.08%	2.89%
After Taxes on Distributions and Sale of Fund Shares | Class III	5.55%	3.05%	3.15%	3.14%
Bloomberg Barclays U.S. Aggregate Index (Fund benchmark) (reflects no deduction for fees, expenses, or taxes) | Class III	7.51%	4.43%	3.84%	5.25%	Apr. 30, 1997
Bloomberg Barclays U.S. Aggregate Index (Fund benchmark) (reflects no deduction for fees, expenses, or taxes) | Class IV	7.51%	4.43%	3.84%	4.41%	Jul. 26, 2005

[1] Includes both management fee of 0.25% and class-specific shareholder service fee, if any, for each class of shares. For additional information about the shareholder service fee applicable to each class of shares of the Fund, please see the table included in the section of the Prospectus entitled “Multiple Classes and Eligibility.” Grantham, Mayo, Van Otterloo & Co. LLC (“GMO”) has contractually agreed to reimburse the Fund for the following expenses: audit expenses, fund accounting expenses, pricing service expenses, expenses of non-investment related tax services, transfer agency expenses (excluding, in the case of Class I shares, any amounts paid for sub-transfer agency, recordkeeping and other administrative services provided by financial intermediaries for the benefit of Class I shareholders), expenses of non-investment related legal services provided to the Fund by or at the direction of GMO, federal securities law filing expenses, printing expenses, state and federal registration fees and custody expenses. GMO also has contractually agreed to waive or reduce the Fund’s management fees and shareholder service fees to the extent necessary to offset the management fees and shareholder service fees paid to GMO that are directly or indirectly borne by the Fund or a class of shares of the Fund as a result of the Fund’s direct or indirect investments in other series of GMO Trust (“GMO Funds”). Management fees and shareholder service fees will not be waived below zero. These reimbursements and waivers will continue through at least June 30, 2022 and may not be terminated prior to this date without the action or consent of the Trust’s Board of Trustees.

[2] Includes estimate of payments for sub-transfer agency, recordkeeping and other administrative services for Class I’s initial fiscal year. GMO has contractually agreed to waive its fees with respect to and/or reimburse Class I shares to the extent that amounts paid by the Fund out of the net assets attributable to Class I shares for sub-transfer agency, recordkeeping and other administrative services provided by financial intermediaries for the benefit of Class I shareholders exceed 0.10% of the average daily net assets attributable to Class I shares. This reimbursement will continue through at least June 30, 2022 and may not be terminated prior to this date without the action or consent of the Trust’s Board of Trustees.

[3] Consists of approximately 0.14% in underlying fund fees and expenses, less than 0.01% in interest expense incurred by underlying funds, and 0.07% in purchase premiums and redemption fees paid to underlying funds.