SEMIANNUAL REPORT

Martin Currie Sustainable International Equity ETF

1. The Fund adopted the performance of the predecessor mutual fund as the result of the Reorganization. Prior to the Reorganization, the Fund had not yet commenced operations. The returns shown for periods ended on or prior to October 28, 2022, are those of the predecessor mutual fund. The predecessor mutual fund’s performance is represented by the performance of the predecessor mutual fund’s Class IS Shares. Prior to the Fund’s listing on October 31, 2022, the NAV performance of the Class IS Shares of the predecessor mutual fund is used as a proxy for the Fund’s market price returns. Had the predecessor mutual fund been structured as an ETF, its performance may have differed.

2. Source: Morningstar.

The indexes are unmanaged and include reinvestment of any income or distributions. They do not reflect any fees, expenses or sales charges. One cannot invest directly in an index.

3. Effective September 30, 2021, the predecessor mutual fund changed its name from Martin Currie International Unconstrained Equity Fund to Martin Currie International Sustainable Equity Fund and adopted the Fund’s current ESG-related investment strategies.

See www.franklintempletondatasources.com for additional data provider information.

The dollar value, number of shares or principal amount, and names of all portfolio holdings are listed in the Fund’s Schedule of Investments (SOI). The SOI begins on page 8 .

MARTIN CURRIE SUSTAINABLE INTERNATIONAL EQUITY ETF

MARTIN CURRIE SUSTAINABLE INTERNATIONAL EQUITY ETF

Performance Summary as of November 30, 2022

Total return reflects reinvestment of the Fund’s dividends and capital gain distributions, if any, and any unrealized gains or losses. Total returns do not include brokerage commissions that may be payable on secondary market transactions. The performance table does not reflect any taxes that a shareholder would pay on Fund dividends, capital gain distributions, if any, or any realized gains on the sale of Fund shares.

Net asset value or “NAV” is the value of one share of a fund as calculated in accordance with the standard formula for valuing mutual fund shares. Market Price returns typically are based upon the official closing price of the ETF’s shares. Since shares of the Fund did not trade in the secondary market until after the Fund’s inception, for the period from the Fund’s inception (October 28, 2022) to the first day of secondary trading (October 31, 2022), the NAV performance of the class IS Shares of the predecessor mutual fund is used as a proxy for the Market Price to calculate Market Price returns. Market price and NAV returns assume that dividends and capital gain distributions have been reinvested at Market Price and NAV.

Your dividend income will vary depending on dividends or interest paid by securities in the Fund’s portfolio, adjusted for operating expenses. Capital gain distributions are net profits realized from the sale of portfolio securities.

Performance as of 11/30/22 ¹

Performance data represent past performance, which does not guarantee future results. Investment return and principal value will fluctuate, and you may have a gain or loss when you sell your shares. Current performance may differ from figures shown. For most recent month-end performance, go to franklintempleton.com or call (800) 342-5236 .

See page 5 for Performance Summary footnotes.

MARTIN CURRIE SUSTAINABLE INTERNATIONAL EQUITY ETF

PERFORMANCE SUMMARY

Total Annual Operating Expenses ⁵

All investments involve risks, including possible loss of principal. Equity securities are subject to price fluctuation and possible loss of principal. Small- and mid-cap stocks involve greater risks and volatility than large-cap stocks. The Fund may be significantly overweight to underweight certain companies, industries or market sectors, which may cause the Fund’s performance to be more sensitive to developments affecting those companies, industries or sectors. International investments are subject to special risks including currency fluctuations, as well as social, economic and political uncertainties, which could increase volatility. These risks are magnified in emerging markets. To the extent the Fund focuses its investments in a single country or only a few countries in a particular geographic region, economic, political, regulatory or other conditions affecting such country or region may have a greater impact on Fund performance relative to a more geographically diversified fund. The managers’ environmental social and governance (ESG) strategies may limit the types and number of investments available and, as a result, may forego favorable market opportunities or underperform strategies that are not subject to such criteria. ESG factors or criteria are subjective and qualitative, and the analysis by the manager may not always accurately assess ESG practices of a security or issuer, or reflect the opinions of other investors or advisors. There is no guarantee that the strategy’s ESG directives will be successful or will result in better performance and may not work as intended. Derivatives, such as options and futures, can be illiquid, may disproportionately increase losses and have a potentially large impact on Fund performance. In addition to the Fund’s operating expenses, the Fund will indirectly bear the operating expenses of any underlying funds. The Fund is classified as “non-diversified,” which means it may invest a larger percentage of its assets in a smaller number of issuers than a diversified fund. To the extent the Fund invests its assets in a smaller number of issuers, the Fund will be more susceptible to negative events affecting those issuers than a diversified fund. Events such as the spread of deadly diseases, disasters, and financial, political or social disruptions, may heighten risks and adversely affect performance. The Fund’s prospectus also includes a description of the main investment risks.

Russia’s military invasion of Ukraine in February 2022, the resulting responses by the United States and other countries, and the potential for wider conflict could increase volatility and uncertainty in the financial markets and adversely affect regional and global economies. The United States and other countries have imposed broad-ranging economic sanctions on Russia and certain Russian individuals, banking entities and corporations as a response to its invasion of Ukraine. The United States and other countries have also imposed economic sanctions on Belarus and may impose sanctions on other countries that support Russia’s military invasion. These sanctions, as well as any other economic consequences related to the invasion, such as additional sanctions, boycotts or changes in consumer or purchaser preferences or cyberattacks on governments, companies or individuals, may further decrease the value and liquidity of certain Russian securities and securities of issuers in other countries that are subject to economic sanctions related to the invasion.

ETFs trade like stocks, fluctuate in market value and may trade at prices above or below their net asset value. Brokerage commissions and ETF expenses will reduce returns.

1. The total annual operating expenses are as of the Fund’s prospectus available at the time of publication. Actual expenses may be higher and may impact portfolio returns.

2. The Fund adopted the performance of the predecessor mutual fund as the result of the Reorganization. Prior to the Reorganization, the Fund had not yet commenced operations. Total return calculations represent the cumulative and average annual changes in value of an investment over the periods indicated. Return for less than one year, if any, has not been annualized. The returns shown for periods ended on or prior to October 28, 2022, are those of the predecessor mutual fund. The predecessor mutual fund’s performance is represented by the performance of the predecessor mutual fund’s Class IS Shares. Prior to the Fund’s listing on October 31, 2022, the NAV performance of the Class IS Shares of the predecessor mutual fund is used as a proxy for the Fund’s market price returns. Had the predecessor mutual fund been structured as an ETF, its performance may have differed.

3. Assumes reinvestment of distributions based on net asset value.

4. Assumes reinvestment of distributions based on market price.

5. Figures are as stated in the Fund’s current prospectus and may differ from the expense ratios disclosed in the Your Fund’s Expenses and Financial Highlights sections in this report.

See www.franklintempletondatasources.com for additional data provider information.

MARTIN CURRIE SUSTAINABLE INTERNATIONAL EQUITY ETF

Your Fund’s Expenses

As a Fund shareholder, you can incur two types of costs: (1) transaction costs, including brokerage commissions on purchases and sales of Fund shares; and (2) ongoing Fund costs, including management fees and other Fund expenses. All funds have ongoing costs, sometimes referred to as operating expenses. The table below shows ongoing costs of investing in the Fund and can help you understand these costs and compare them with those of other funds. The table assumes a $1,000 investment held for the six months indicated.

Actual Fund Expenses

The table below provides information about actual account values and actual expenses in the columns under the heading “Actual.” In these columns the Fund’s actual return, which includes the effect of Fund expenses, is used to calculate the “Ending Account Value.” You can estimate the expenses you paid during the period by following these steps ( of course, your account value and expenses will differ from those in this illustration ) : Divide your account value by $1,000 ( if your account had an $8,600 value, then $8,600 ÷ $1,000 = 8.6 ) . Then multiply the result by the number in the row under the headings “Actual” and “Expenses Paid During Period” ( if Actual Expenses Paid During Period were $7.50, then 8.6 × $7.50 = $64.50 ) . In this illustration, the actual expenses paid this period are $64.50.

Hypothetical Example for Comparison with Other Funds

Under the heading “Hypothetical” in the table, information is provided about hypothetical account values and hypothetical expenses based on the Fund’s actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund’s actual return. This information may not be used to estimate the actual ending account balance or expenses you paid for the period, but it can help you compare ongoing costs of investing in the Fund with those of other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of other funds.

Please note that expenses shown in the table are meant to highlight ongoing costs and do not reflect any transactional costs. Therefore, information under the heading “Hypothetical” is useful in comparing ongoing costs only, and will not help you compare total costs of owning different funds. In addition, if transactional costs were included, your total costs would have been higher.

1. Expenses are equal to the annualized expense ratio for the six-month period as indicated above—in the far right column—multiplied by the simple average account value over the period indicated, and then multiplied by 183/365 to reflect the one-half year period.

FRANKLIN TEMPLETON ETF TRUST

Financial Highlights

Martin Currie Sustainable International Equity ETF

^a Effective after the market close on October 28, 2022, the Fund’s predecessor mutual fund, Martin Currie International Sustainable Equity Fund, reorganized into this Fund (the “Reorganization”). See Note 1 in the Notes to Financial Statements for additional information about the Reorganization.

^b The amount shown for a share outstanding throughout the period may not correlate with the Statement of Operations for the period due to the timing of sales and repurchases of Creation Unit Fund shares in relation to income earned and/or fluctuating fair value of the investments of the Fund.

^c Based on average daily shares outstanding.

^d Amount rounds to less than $0.005 per share.

^e The Fund adopted the performance of the predecessor mutual fund as the result of the Reorganization. Prior to the Reorganization, the Fund had not yet commenced operations. The returns shown for periods ending on or prior to October 28, 2022, are those of the predecessor mutual fund. The predecessor mutual fund’s performance is represented by the performance of the predecessor mutual fund’s Class IS Shares. Had the predecessor mutual fund been structured as an ETF, its performance may have differed.

^f Total return is not annualized for periods less than one year. Total return is calculated assuming an initial investment made at the net asset value at the beginning of the period, reinvestment of all dividends and distributions at net asset value during the period, and redemption at net asset value on the last day of the period.

^g Ratios are annualized for periods less than one year.

^h Reflects recapture of expenses waived/reimbursed from prior fiscal years for period prior to the Reorganization.

ⁱ Portfolio turnover rate includes portfolio transactions that are executed as a result of the Fund offering and redeeming Creation Units solely for cash (“Cash creations”).

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Schedule of Investments, November 30, 2022 (unaudited)

Martin Currie Sustainable International Equity ETF

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SCHEDULE OF INVESTMENTS

Martin Currie Sustainable International Equity ETF (continued)

^a Non-income producing.

See Abbreviations on page 20 .

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FINANCIAL STATEMENTS

Statement of Assets and Liabilities

November 30, 2022 (unaudited)

Martin Currie Sustainable International Equity ETF ^a

^a Effective after the market close on October 28, 2022, the Fund’s predecessor mutual fund, Martin Currie International Sustainable Equity Fund, reorganized into this Fund (the “Reorganization”). See Note 1 in the Notes to Financial Statements for additional information about the Reorganization.

FRANKLIN TEMPLETON ETF TRUST

FINANCIAL STATEMENTS

Statement of Operations

for the period ended November 30, 2022 (unaudited)

Martin Currie Sustainable International Equity ETF ^a

^a Effective after the market close on October 28, 2022, the Fund’s predecessor mutual fund, Martin Currie International Sustainable Equity Fund, reorganized into this Fund (the “Reorganization”). See Note 1 in the Notes to Financial Statements for additional information about the Reorganization.

FRANKLIN TEMPLETON ETF TRUST

FINANCIAL STATEMENTS

Statements of Changes in Net Assets

Martin Currie Sustainable International Equity ETF ^a

^a Effective after the market close on October 28, 2022, the Fund’s predecessor mutual fund, Martin Currie International Sustainable Equity Fund, reorganized into this Fund (the “Reorganization”). See Note 1 in the Notes to Financial Statements for additional information about the Reorganization.

FRANKLIN TEMPLETON ETF TRUST

Notes to Financial Statements (unaudited)

FRANKLIN TEMPLETON ETF TRUST

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

1. Organization and Significant Accounting

Policies (continued)

a. Financial Instrument Valuation (continued)

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NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

1. Organization and Significant Accounting

Policies (continued)

2. Shares of Beneficial Interest

Shares of the Funds are issued and redeemed at their respective NAV only in aggregations of a specific number of shares or multiples thereof (Creation Units). Only certain large institutional investors (Authorized Participants) may engage in creation or redemption transactions directly with the Funds. Once created, shares of the Funds generally trade in the secondary market in amounts less than one Creation Unit. The market price of the Fund’s shares will be based on the price in the secondary market which may be at, above or below the most recent NAV. Creation Units may be issued and redeemed in exchange for a designated portfolio of securities and/or cash (which may include cash in lieu of certain securities).

FRANKLIN TEMPLETON ETF TRUST

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

2. Shares of Beneficial Interest (continued)

Authorized Participants pay a standard transaction fee to the shareholder servicing agent when purchasing or redeeming Creation Units of the Funds regardless of the number of Creation Units that are being created or redeemed on the same day by the Authorized Participant. The standard transaction fee is imposed to offset transfer and other transaction costs associated with the issuance and redemption of Creation Units and is not charged to or paid by the Funds. Such transactions fees are treated as increases in capital and are disclosed in the Fund’s Statements of Changes in Net Assets.

In addition, for cash Creation Unit transactions, a variable fee for creation transactions and redemption transactions may be charged to the Authorized Participant to cover certain brokerage, tax, foreign exchange, execution, market impact and other costs and expenses related to the execution of trades. Variable fees, if any, are included in capital share transactions in the Statements of Changes in Net Assets.

At November 30, 2022, there were an unlimited number of shares authorized (without par value). Transactions in the Fund’s shares were as follows:

^a Effective after the market close on October 28, 2022, the Fund’s predecessor mutual fund, Martin Currie International Sustainable Equity Fund, reorganized into Martin Currie Sustainable International Equity ETF (the “Reorganization”). The predecessor mutual fund’s Class IS Shares’ performance and financial history have been adopted by Martin Currie Sustainable International Equity ETF and will be used going forward. As a result, the information prior to the Reorganization reflects that of the predecessor mutual fund’s Class IS Shares. Shares of the other classes of the predecessor mutual fund were converted into Class IS Shares as a part of the Reorganization. Such conversion of the other classes of shares into Class IS Shares is included under “Shares sold”.

^b Shares of the other classes of the predecessor mutual fund were converted into Class IS Shares as a part of the Reorganization. Such conversion of the other classes of shares into Class IS Shares is included under “Shares redeemed”.

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NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

3. Transactions with Affiliates

Franklin Resources, Inc. is the holding company for various subsidiaries that together are referred to as Franklin Templeton. Certain officers and trustees of the Funds are also officers and/or directors of the following subsidiaries:

a. Management fees

Effective after the market close on October 28, 2022 pursuant to the investment management agreement with the Trust on behalf of the Fund, the Fund pays Advisers a unified management fee equal to the annual rate of 0.75% based on the average daily net assets of the Fund. Pursuant to the investment management agreement, Advisers reimburses the Fund for all acquired fund fees and expenses (such as those associated with the Fund’s investment in a Franklin Templeton money fund) and pays all of the ordinary operating expenses of the Fund, except for (i) the Fund’s management fee, (ii) payments under the Fund’s Rule 12b-1 plan (if any), (iii) brokerage expenses (including any costs incidental to transactions in portfolio securities or instruments), (iv) taxes, (v) interest (including borrowing costs and dividend expenses on securities sold short and overdraft charges), (vi) litigation expenses (including litigation to which the Trust or the Fund may be a party and indemnification of the Trustees and officers with respect thereto), and (vii) other non-routine or extraordinary expenses. Advisers pays Martin Currie for its services.

For the period June 1, 2022 through October 28, 2022 the predecessor mutual fund paid an investment management fee to Legg Mason Partners Fund Advisor, LLC (“LMPFA”), the investment advisor to the predecessor fund based on the average daily net assets of the fund as follows:

For its services, LMPFA paid Martin Currie monthly, an aggregate fee equal to 70% of the net management fee it receives from the predecessor mutual fund.

For the period ended November 30, 2022, the Fund’s annualized effective investment management fee rate based on average daily net assets was 0.75%.

b. Administrative Fees

Under an agreement with Advisers, FT Services provides administrative services to the Fund. The fee is paid by Advisers based on the Fund’s average daily net assets, and is not an additional expense of the Fund. For the period June 1, 2022 through October 28, 2022, LMPFA provided administrative and certain oversight services to the Fund.

c. Investments in Affiliated Management Investment Companies

The Fund invests in one or more affiliated management investment companies. As defined in the 1940 Act, an investment is deemed to be a “Controlled Affiliate” of a fund when a fund owns, either directly or indirectly, 25% or more of the affiliated fund’s outstanding shares or has the power to exercise control over management or policies of such fund. The Fund does not invest for purposes of exercising a controlling influence over the management or policies. Management fees paid by the Fund are waived on assets invested in the affiliated management investment companies, as noted in the Statements of Operations, in an amount not to exceed the management and administrative fees paid directly or indirectly by each affiliate. During the period ended November 30, 2022, investments in affiliated management investment companies were as follows:

FRANKLIN TEMPLETON ETF TRUST

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

4. Income Taxes

For tax purposes, capital losses of the predecessor mututal fund may be carried over to offset future capital gains, if any. At May 31, 2022, the capital loss carryforwards were as follows:

At November 30, 2022, the cost of investments and net unrealized appreciation (depreciation) for income tax purposes of the Fund were as follows:

Differences between income and/or capital gains as determined on a book basis and a tax basis are primarily due to differing treatments of passive foreign investment company shares and wash sales.

5. Investment Transactions

Purchases and sales of investments (excluding short term securities and in-kind transactions, if any) for the period ended November 30, 2022 was $2,600,537 and $8,337,407, respectively.

6. Global Credit Facility

On February 4, 2022, the predecessor mutual fund, together with other U.S. registered and foreign investment funds (collectively, the “Borrowers”) managed by Franklin Resources or its affiliates, became a borrower in a joint syndicated senior unsecured credit facility totaling $2.675 billion (the “Global Credit Facility”). The Global Credit Facility provides a source of funds to the Borrowers for temporary and emergency purposes, including the ability to meet future unanticipated or unusually large redemption requests. Unless renewed, the Global Credit Facility will terminate on February 3, 2023.

Under the terms of the Global Credit Facility, the Fund shall, in addition to interest charged on any borrowings made by the Fund and other costs incurred by the Fund, pay its share of fees and expenses incurred in connection with the implementation and maintenance of the Global Credit Facility, based upon its relative share of the aggregate net assets of all the Borrowers, including an annual commitment fee of 0.15% based upon the unused portion of the Global Credit Facility. These fees are reflected in the Statement of Operations. The Fund did not utilize the Global Credit Facility during the period ended November 30, 2022.

7. Concentration of Risk

Investing in foreign securities may include certain risks and considerations not typically associated with investing in U.S. securities, such as fluctuating currency values and changing local, regional and global economic, political and social conditions, which may result in greater market volatility. Political and financial uncertainty in many foreign regions may increase market volatility and the economic risk of investing in foreign securities. In addition, certain foreign securities may not be as liquid as U.S. securities.

FRANKLIN TEMPLETON ETF TRUST

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

7. Concentration of Risk (continued)

Russia’s military invasion of Ukraine in February 2022, the resulting responses by the United States and other countries, and the potential for wider conflict could increase volatility and uncertainty in the financial markets and adversely affect regional and global economies. The United States and other countries have imposed broad-ranging economic sanctions on Russia and certain Russian individuals, banking entities and corporations as a response to its invasion of Ukraine. The United States and other countries have also imposed economic sanctions on Belarus and may impose sanctions on other countries that support Russia’s military invasion. These sanctions, as well as any other economic consequences related to the invasion, such as additional sanctions, boycotts or changes in consumer or purchaser preferences or cyberattacks on governments, companies or individuals, may further decrease the value and liquidity of certain Russian securities and securities of issuers in other countries that are subject to economic sanctions related to the invasion. To the extent that the Fund has exposure to Russian investments or investments in countries affected by the invasion, the Fund’s ability to price, buy, sell, receive or deliver such investments was impaired. The Fund could determine at any time that certain of the most affected securities have little or no value. In addition, any exposure that the Fund may have to counterparties in Russia or in countries affected by the invasion could negatively impact the Fund’s portfolio. The extent and duration of Russia’s military actions and the repercussions of such actions (including any retaliatory actions or countermeasures that may be taken by those subject to sanctions) are impossible to predict, but could result in significant market disruptions, including in the oil and natural gas markets, and may negatively affect global supply chains, inflation and global growth. These and any related events could significantly impact the Fund’s performance and the value of an investment in the Fund, even beyond any direct exposure the Fund may have to Russian issuers or issuers in other countries affected by the invasion.

8. Novel Coronavirus Pandemic

The outbreak of the respiratory illness COVID-19 (commonly referred to as “coronavirus”) has continued to rapidly spread around the world, causing considerable uncertainty for the global economy and financial markets. The ultimate economic fallout from the pandemic, and the long-term impact on economies, markets, industries and individual issuers, are not known. The COVID-19 pandemic could adversely affect the value and liquidity of the Fund’s investments, impair the Fund’s ability to satisfy redemption requests, and negatively impact the Fund’s performance. In addition, the outbreak of COVID-19, and measures taken to mitigate its effects, could result in disruptions to the services provided to the Fund by its service providers.

9. Fair Value Measurements

The Fund follows a fair value hierarchy that distinguishes between market data obtained from independent sources (observable inputs) and the Fund’s own market assumptions (unobservable inputs). These inputs are used in determining the value of the Fund’s financial instruments and are summarized in the following fair value hierarchy:

The input levels are not necessarily an indication of the risk or liquidity associated with financial instruments at that level.

FRANKLIN TEMPLETON ETF TRUST

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

9. Fair Value Measurements (continued)

A summary of inputs used as of November 30, 2022, in valuing the Fund’s assets and liabilities carried at fair value, is as follows:

^a For detailed categories, see the accompanying Statement of Investments.

^b Includes common stocks.

10. Subsequent Events

The Fund has evaluated subsequent events through the issuance of the financial statements and determined that no events have occurred that require disclosure, except for the following. On November 12th, 2022, the Fund’s Board approved changing the Fund’s fiscal year end from May 31st to March 31st.

Abbreviations

Shareholder Information

Authorized for distribution only when accompanied or preceded by a summary prospectus and/or prospectus. Investors should carefully consider a fund’s investment goals, risks, charges and expenses before investing. A prospectus contains this and other information; please read it carefully before investing.

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		Semiannual Report
		Martin Currie Sustainable International Equity ETF
		Investment Manager Franklin Advisers, Inc. Subadvisor Martin Currie Inc.		Distributor Franklin Distributors, LLC (800) DIAL BEN ® /342-5236 franklintempleton.com		Investor Services Transfer Agent State Street Bank and Trust Company 1 Heritage Drive Mail Stop OHD0100 North Quincy, MA 02171