# EDGAR Filing Document

**Accession Number:** 0001655589
**File Stem:** 0001741773-25-002898
**Filing Date:** 2025-8
**Character Count:** 39855
**Document Hash:** 40a762ac0a1d844f3398271ec92fe459
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001741773-25-002898.hdr.sgml**: 20250801

**ACCESSION NUMBER**: 0001741773-25-002898

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 6

**FILED AS OF DATE**: 20250801

**DATE AS OF CHANGE**: 20250801

**EFFECTIVENESS DATE**: 20250801

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Franklin Templeton ETF Trust
- **CENTRAL INDEX KEY:** 0001655589

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** FL
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-208873
- **FILM NUMBER:** 251173895

**BUSINESS ADDRESS:**
- **STREET 1:** ONE FRANKLIN PARKWAY
- **CITY:** SAN MATEO
- **STATE:** CA
- **ZIP:** 94403
- **BUSINESS PHONE:** 650-312-2000

**MAIL ADDRESS:**
- **STREET 1:** ONE FRANKLIN PARKWAY
- **CITY:** SAN MATEO
- **STATE:** CA
- **ZIP:** 94403

## Series and Classes Contracts Data

### ClearBridge Sustainable Infrastructure ETF (Series ID: S000079010)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000239841 | ClearBridge Sustainable Infrastructure ETF |  |

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| | |
|:---|:---|
| ![](img_b48243feac0d4f1.jpg) | ![](img_4b99279a967d4f1.jpg) |

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## CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF

## FRANKLIN TEMPLETON ETF TRUST

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| | |
|:---|:---|
| **SUMMARY PROSPECTUS** | &nbsp;&nbsp;&nbsp;&nbsp;August 1, 2025<br>|

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| | |
|:---|:---|
| **Ticker:** INFR | **Exchange: The Nasdaq Stock Market LLC** |

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Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus, statement of additional information, reports to shareholders and other information about the Fund online at www.franklintempleton.com/prospectus. You can also get this information at no cost by calling (800) DIAL BEN/342-5236 or by sending an e-mail request to ETFs-Product@franklintempleton.com. The Fund's prospectus and statement of additional information, both dated August 1, 2025, as may be supplemented, are all incorporated by reference into this Summary Prospectus.

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

### Fund Summary
Investment Goal

Total return, consisting of capital appreciation and income.

Fees and Expenses of the Fund

**The following table describes the fees and expenses that you will incur if you buy, hold and sell shares of the Fund. You may also incur other fees, such as usual and customary brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and the Example that follows.**

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

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| | |
|:---|:---|
| Management fees | 0.59% |
| Distribution and service (12b-1) fees |  |
| Other expenses | 0.00% |
| **Total annual Fund operating expenses** | **0.59%** |

---

#### Example
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| **ClearBridge Sustainable Infrastructure ETF** | $60 | $189 | $329 | $738 |

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Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 24.89% of the average value of its portfolio.

<br> 2 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

Principal Investment Strategies

Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of borrowings for investment purposes, if any, in securities issued by companies that are engaged in the infrastructure business and that meet the sub-advisor's sustainability and financial criteria at the time of investment, and other investments with similar economic characteristics.

The sub-advisor considers companies to be engaged in the infrastructure business if at least 50% or more of their assets, income, sales or profits are committed to, or derived from, the construction, maintenance, renovation, ownership, development, management or operation of infrastructure assets. Infrastructure assets include physical structures, networks, developments and projects that communities and economies require to function and grow, including transportation-related infrastructure (e.g., roads, railroads, and ports), energy-related infrastructure (e.g., alternative energy and electrical plants), water and sewage infrastructure, communications infrastructure (e.g., fiber, copper, wireless and cable networks, broadcast towers and satellites), and social services-related infrastructure (e.g., hospitals, healthcare facilities, educational facilities, prisons, sports and entertainment facilities and stadiums) and other resources and services necessary for the construction and maintenance of infrastructure assets.

The Fund concentrates its investments in the infrastructure industry.

The Fund seeks to achieve its investment objective by investing in a portfolio of equity securities of infrastructure companies with attractive valuation, distributions and cash flow characteristics that meet the sub-advisor's sustainability criteria for investment. The Fund invests in equity and equity-related securities of exchange-traded infrastructure companies, which may include common stocks, preferred stocks, convertible stocks, publicly-traded units of master limited partnerships (MLPs), and securities of other investment companies, exchange traded funds (ETFs) and real estate investment trusts (REITs).

The Fund may invest in companies of any size and market capitalization, including small and mid-capitalization companies. These issuers may be newer or less seasoned companies, including companies making initial public offerings (IPOs). The Fund's portfolio is expected to be highly concentrated, with approximately 25 to 50 holdings.

The Fund may seek investment opportunities in any foreign country and may invest a significant portion of its assets in foreign securities. The Fund may invest up to 20% of its assets in securities of companies located in countries with developing or emerging markets.

<br> www.franklintempleton.com Prospectus 3

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

The sub-advisor applies a proprietary screening methodology to develop an investment universe of securities of companies that are engaged in the infrastructure business and meet the Fund's sustainability and financial criteria.

In constructing the Fund's portfolio, the sub-advisor applies inclusionary liquidity, infrastructure exposure, quality and income screens to the global listed infrastructure investable universe. To determine infrastructure exposure, the sub-advisor evaluates criteria such as the following: (1) ownership of physical infrastructure assets; (2) the nature of the services provided by the infrastructure asset base; (3) monopoly characteristics; and (4) contractual and/or regulatory rights that provide for the ability to generate relatively stable cash flows to equity holders. All eligible companies are then assigned a rating (AAA, AA, A or B) via the sub-advisor's proprietary environmental, social and governance (ESG) rating system, the ESG Ratings Manager (ERM), with companies assessed at the current point in time as well as expectations of any improvement (e.g., decarbonization opportunities) or deterioration (e.g., climate-related risk exposures) across the medium to long-term based on a company's planned actions, strategies and engagement as evaluated by the sub-advisor. The ERM assesses whether a company focuses on ESG factors, integrates ESG factors into its business model, and measures such efforts. Specifically, the sub-advisor assesses various climate related risks and opportunities as part of its bottom-up stock selection process. Environmental, social and governance efforts are measured via the ERM, which assesses a range of data including adverse impacts and includes ongoing issuer engagement.

The sub-advisor uses various quantitative and qualitative measures to analyze global listed equity securities of infrastructure companies. In identifying companies that meet the Fund's sustainability criteria, the sub-advisor assesses ESG factors through a proprietary analytical framework that is applied to each potential investment. In constructing the Fund's portfolio, each infrastructure sub-industry is assessed against a weighting of factors relevant to its business operations. This analysis includes such factors as: the company's environmental practices including green-house gas emissions, carbon emissions, energy efficiency initiatives, supply chain, pollution/hazardous waste policies, water usage, and climate change policies; social factors such as a company's approach to community relations, occupational safety and health and the management of its human capital; the governance structure of the company including alignment with management, the board and other major shareholders of the company, board effectiveness and quality, operating excellence, risk control, diversity, remuneration practices, shareholder rights, accounting standards, and cybersecurity/data protection. The materiality and relevance of these factors will vary by company and sub-industry. The sub-advisor uses ESG factors as a tool to assess sustainability in the context of an individual company's circumstances.

<br> 4 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

The sub-advisor uses a variety of ESG factors as described above, which may change from time to time, as part of its rating process. The sub-advisor then applies its exclusionary screening process to select investments for the Fund. Companies that score a rating of below AA are excluded from the investment universe. In addition, the Fund seeks to avoid investing in companies that are assigned to the following Global Industry Classification Standard (GICS) sub-industries: Oil & Gas Storage & Transportation; Gas Utilities; and Airport Services (excluding Air Navigation Service Providers). The sub-advisor may modify this list of prohibited investments, or any particular exclusion, at any time, without shareholder approval or notice. The sustainability criteria described above apply to 100% of the Fund's portfolio, excluding cash and cash equivalents held for cash management. The sub-advisor also focuses on companies that it believes are attractively valued relative to other companies in the same industry or market. The sub-advisor's value analysis includes consideration of a company's dividends, cash flows, capital growth projections, capital expenditures, balance sheet and capital requirements. The sub-advisor primarily selects stocks based on their bottom-up risk and return characteristics. A top-down approach is then applied to ensure that the portfolio is not overly exposed to a particular geography, sector or other macro factors. The sub-advisor's proprietary research and analysis may incorporate information and data obtained from a variety of third-party research providers as supplementary to the sub-advisor's own proprietary research and analysis. The sub-advisor has the right to change the third-party service providers that support this process at any time.

Principal Risks

You could lose money by investing in the Fund. ETF shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund's net asset value (NAV), trading price, yield, total return and ability to meet its investment goal. Unlike many ETFs, the Fund is not an index-based ETF.

**Market:** The market values of securities or other investments owned by the Fund will go up or down, sometimes rapidly or unpredictably. The market value of a security or other investment may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all investments. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise. In addition, the value of the Fund's investments may go up or down due to general market or other conditions that are not specifically related to a particular issuer, such as: real or perceived adverse economic changes, including widespread liquidity issues and defaults in one or more industries; changes in interest, inflation or exchange rates;

<br> www.franklintempleton.com Prospectus 5

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

unexpected natural and man-made world events, such as diseases or disasters; financial, political or social disruptions, including terrorism and war; and U.S. trade disputes or other disputes with specific countries that could result in additional tariffs, trade barriers and/or investment restrictions in certain securities in those countries. Any of these conditions can adversely affect the economic prospects of many companies, sectors, nations, regions and the market in general, in ways that cannot necessarily be foreseen.

Stock prices tend to go up and down more dramatically than those of debt securities. A slower-growth or recessionary economic environment could have an adverse effect on the prices of the various stocks held by the Fund.

**Infrastructure Industry Concentration:** By focusing its investments in the infrastructure industry, the Fund carries much greater risks of adverse developments and price movements in such industries than a fund that invests in a wider variety of industries. Because the Fund concentrates in a specific industry or group of industries, there is also the risk that the Fund will perform poorly during a slump in demand for securities of companies in such industries.

Infrastructure companies can be affected by changing energy and commodity prices, changes in the cost of providing energy, utilities, or other infrastructure services, increased government regulation and oversight, government budgetary constraints, environmental conservation efforts, catastrophic accidents or other events, litigation, negative publicity and perception, increased tariffs, changes in tax laws, and changes in macroeconomic factors such as interest rate fluctuations or gross domestic product (GDP) growth, among other factors. Companies that are engaged in the infrastructure business may also operate facilities that are negatively affected by terrorist attacks, strikes, labor shortages and social unrest, natural disasters, environmental damage and severe weather conditions, as well as regulatory and operational burdens associated with the operation and maintenance of such facilities.

**Dividend-Oriented Companies:** Companies that have historically paid regular dividends to shareholders may decrease or eliminate dividend payments in the future. A decrease in dividend payments by an issuer may result in a decrease in the value of the issuer's stock and less available income for the Fund.

**Foreign Securities (non-U.S.):** Investing in foreign securities typically involves different risks than investing in U.S. securities, and includes risks associated with: (i) internal and external political and economic developments – e.g., the political, economic and social policies and structures of some foreign countries may be less stable and more volatile than those in the U.S. or some foreign countries may be subject to trading restrictions or economic sanctions; diplomatic and political developments could affect the economies, industries, and securities and currency markets of the countries in which the Fund is invested, which can include rapid and

<br> 6 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

adverse political changes; social instability; regional conflicts; sanctions imposed by the United States, other nations or other governmental entities, including supranational entities; terrorism; and war; (ii) trading practices – e.g., government supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S.; (iii) availability of information – e.g., foreign issuers may not be subject to the same disclosure, accounting and financial reporting standards and practices as U.S. issuers; (iv) limited markets – e.g., the securities of certain foreign issuers may be less liquid (harder to sell) and more volatile; and (v) currency exchange rate fluctuations and policies – e.g., fluctuations may negatively affect investments denominated in foreign currencies and any income received or expenses paid by the Fund in that foreign currency. The risks of foreign investments may be greater in developing or emerging market countries.

**Developing Market Countries:** The Fund's investments in securities of issuers in developing market countries are subject to all of the risks of foreign investing generally, and have additional heightened risks due to a lack of established legal, political, business and social frameworks to support securities markets, including: delays in settling portfolio securities transactions; currency and capital controls; greater sensitivity to interest rate changes; pervasiveness of corruption and crime; currency exchange rate volatility; and inflation, deflation or currency devaluation.

**ESG Investment Strategy:** The Fund's ESG investment strategy limits the types and number of investment opportunities available to the Fund and, as a result, the Fund may underperform other funds that do not have an ESG focus. The Fund's ESG investment strategy may result in the Fund investing in securities or industry sectors that underperform the market as a whole, or forgoing opportunities to invest in securities that might otherwise be advantageous to buy. The Fund may also underperform other funds that apply different ESG standards. In addition, the sub-advisor may be unsuccessful in creating a portfolio composed of companies that exhibit positive ESG characteristics. In evaluating a security or issuer based on ESG criteria, the sub-advisor may use information and data from third-party providers of ESG research, which may be incomplete, inaccurate or unavailable. There is no uniform set of ESG standards, and different third party providers may provide different or inconsistent information and data. There may be limitations with respect to availability of ESG data in certain sectors, as well as limited availability of investments with positive ESG assessments in certain sectors. As a result, there is a risk that the sub-advisor may incorrectly assess a security or issuer. The sub-advisor's evaluation of ESG criteria is subjective and may change over time.

**Large Capitalization Companies:** Large capitalization companies may fall out of favor with investors based on market and economic conditions. Large capitalization companies may underperform relative to small and mid capitalization companies because they may be unable to respond quickly to new competitive challenges,

<br> www.franklintempleton.com Prospectus 7

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

such as changes in technology and consumer tastes, and may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

**Small and Mid Capitalization Companies:** Securities issued by small and mid capitalization companies may be more volatile in price than those of larger companies and may involve substantial risks. Such risks may include greater sensitivity to economic conditions, less certain growth prospects, lack of depth of management and funds for growth and development, and limited or less developed product lines and markets. In addition, small and mid capitalization companies may be particularly affected by interest rate increases, as they may find it more difficult to borrow money to continue or expand operations, or may have difficulty in repaying any loans. The markets for securities issued by small and mid capitalization companies also tend to be less liquid than the markets for securities issued by larger companies.

**Master Limited Partnerships (MLPs)** MLP entities are typically focused in the energy, natural resources and real estate sectors of the economy. Energy and natural resources MLPs may be adversely impacted by the volatility of commodity prices. A downturn in the energy, natural resources or real estate sectors of the economy could have an adverse impact on the Fund. At times, the performance of securities of companies in the energy, natural resources and real estate sectors of the economy may lag the performance of other sectors or the broader market as a whole. MLPs holding credit-related investments are subject to interest rate risk and the risk of default on payment obligations by debt issuers. In addition, MLPs are generally considered interest-rate sensitive investments, and during periods of interest rate volatility, may not provide attractive returns. Holders of MLP units have limited control and voting rights on matters affecting the MLP. In addition, there are certain tax risks associated with an investment in MLP units and the potential for conflicts of interest exists between common unit holders and the general partner, including those arising from incentive distribution payments. The benefit the Fund derives from investment in MLP units is largely dependent on the MLPs being classified as partnerships and not as corporations for federal income tax purposes. If an MLP in which the Fund invests were treated as a corporation for federal income tax purposes, the MLP may incur significant federal and state tax liability, which could cause a reduction in the value of the Fund's shares.

**REITs:** A REIT's performance depends on the types, values and locations of the properties and companies it owns and how well those properties and companies are managed. A decline in rental income may occur because of extended vacancies, increased competition from other properties, tenants' failure to pay rent or poor management. Because a REIT may be invested in a limited number of projects or in a particular market segment, it may be more susceptible to adverse developments affecting a single project or market segment than more broadly

<br> 8 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

diversified investments. Loss of status as a qualified REIT under the U.S. federal tax laws could adversely affect the value of a particular REIT or the market for REITs as a whole. These risks may also apply to securities of REIT-like entities domiciled outside the U.S.

**Value Style Investing:** A value stock may not increase in price as anticipated by the sub-advisor if other investors fail to recognize the company's value and bid up the price, the markets favor faster-growing companies, or the factors that the sub-advisor believes will increase the price of the security do not occur or do not have the anticipated effect.

**Convertible Securities:** Convertible securities are subject to the risks of stocks when the underlying stock price is high relative to the conversion price (because more of the security's value resides in the conversion feature) and debt securities when the underlying stock price is low relative to the conversion price (because the conversion feature is less valuable). The value of convertible securities may rise and fall with the market value of the underlying stock or, like a debt security, vary with changes in interest rates and the credit quality of the issuer. A convertible security is not as sensitive to interest rate changes as a similar non-convertible debt security, and generally has less potential for gain or loss than the underlying stock.

**Preferred Securities:** Preferred securities are subject to general market and issuer-specific risks applicable to equity securities as well as certain risks associated with fixed income securities, including sensitivity to changes in interest rates. Preferred securities may be subordinated to bonds or other debt instruments in an issuer's capital structure, subjecting them to a greater risk of non-payment. The value of preferred securities is heavily dependent on the profitability and cash flows of the issuer and may decline substantially due to the omission or deferment of dividend payments. Preferred securities may be less liquid than other securities, such as common stocks, and generally do not provide voting rights with respect to the issuer.

**Unseasoned Companies:** To the extent that the Fund may invest in small capitalization companies, it may have significant investments in relatively new or unseasoned companies that are in their early stages of development, or in new and emerging industries where the opportunity for rapid growth is expected to be above average. Securities of unseasoned companies present greater risks than securities of larger, more established companies.

**Liquidity:** The trading market for a particular security or type of security or other investments in which the Fund invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the Fund's ability to sell such securities or other investments when necessary to meet the Fund's liquidity needs or in response to a specific economic event and will also generally lower the value

<br> www.franklintempleton.com Prospectus 9

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

of a security or other investments. Market prices for such securities or other investments may be volatile.

**Management:** The Fund is subject to management risk because it is an actively managed ETF. The Fund's sub-advisor applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.

**Market Trading:** The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. Any of these factors, among others, may lead to the Fund's shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than NAV when you buy shares of the Fund in the secondary market, and you may receive less (or more) than NAV when you sell those shares in the secondary market. The sub-advisor cannot predict whether shares will trade above (premium), below (discount) or at NAV.

To the extent that the underlying securities held by the Fund trade on an exchange that is closed when the securities exchange on which the Fund shares list and trade is open, there may be market uncertainty about the stale security pricing (i.e., the last quote from its closed foreign market) resulting in premiums or discounts to NAV that may be greater than those experienced by other ETFs.

**Authorized Participant Concentration:** Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund. "Authorized Participants" are broker-dealers that are permitted to create and redeem shares directly with the Fund and who have entered into agreements with the Fund's distributor. The Fund has a limited number of institutions that act as Authorized Participants. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units (as defined below), Fund shares may trade at a discount to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally.

**Small Fund:** When the Fund's size is small, the Fund may experience low trading volume and wide bid-ask spreads. In addition, the Fund may face the risk of being delisted if the Fund does not meet certain conditions of the listing exchange.

**Large Shareholder:** Certain large shareholders, including other funds or accounts advised by the investment manager, sub-advisor or an affiliate of the investment manager or sub-advisor, may from time to time own a substantial amount of the Fund's shares. In addition, a third-party investor, the investment manager, sub-advisor or an affiliate of the investment manager or sub-advisor, an authorized participant, a lead market maker, or another entity may invest in the Fund and hold

<br> 10 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

its investment for a limited period of time solely to facilitate commencement of the Fund or to facilitate the Fund's achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the Fund would be maintained at such levels or that the Fund would continue to meet applicable listing requirements. Redemptions by large shareholders could have a significant negative impact on the Fund. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the listing exchange and may, therefore, have a material upward or downward effect on the market price of the shares.

**Cybersecurity:** Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain access to Fund assets, Fund or customer data (including private shareholder information), or proprietary information, cause the Fund, the investment manager, the sub-advisor, authorized participants, or index providers (as applicable) and listing exchanges, and/or their service providers (including, but not limited to, Fund accountants, custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality or prevent Fund investors from purchasing, redeeming shares or receiving distributions. The investment manager and the sub-advisor have limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers, and such third party service providers may have limited indemnification obligations to the Fund, the investment manager or the sub-advisor. Cybersecurity incidents may result in financial losses to the Fund and its shareholders, and substantial costs may be incurred in an effort to prevent or mitigate future cybersecurity incidents. Issuers of securities in which the Fund invests are also subject to cybersecurity risks, and the value of these securities could decline if the issuers experience cybersecurity incidents.

Because technology is frequently changing, new ways to carry out cyber attacks are always developing. Therefore, there is a chance that some risks have not been identified or prepared for, or that an attack may not be detected, which puts limitations on the Fund's ability to plan for or respond to a cyber attack. Like other funds and business enterprises, the Fund, the investment manager, the sub-advisor, and their service providers are subject to the risk of cyber incidents occurring from time to time.

Performance

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance and additional indexes with characteristics relevant to the Fund. The Fund's past performance (before and after taxes) is not

<br> www.franklintempleton.com Prospectus 11

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

#### Annual Total Returns
![PerformanceBarChartData(2023:5.2, 2024:-6.47)](img_56d12aaf05b64f1.jpg)

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| | | |
|:---|:---|:---|
| Best Quarter:  | 2024, Q3 | 14.49% |
| Worst Quarter:  | 2024, Q4 | -13.17% |

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As of June 30, 2025, the Fund's year-to-date return was 19.68%.<br>

#### Average Annual Total Returns
For periods ended December 31, 2024

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| | | | |
|:---|:---|:---|:---|
|  |  | **1 Year** | **Since Inception** |
| **ClearBridge Sustainable Infrastructure ETF** | **ClearBridge Sustainable Infrastructure ETF** |  |  |
|  | Return before taxes | -6.47% | -2.51%<br><sup>1</sup> |
|  | Return after taxes on distributions | -6.97% | -3.35%<br><sup>1</sup> |
|  | Return after taxes on distributions and sale of Fund shares | -3.45% | -2.13%<br><sup>1</sup> |
| MSCI All Country World Index-NR (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding) | MSCI All Country World Index-NR (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding) | 17.49% | 17.24%<br><sup>1</sup> |
| FTSE Global Core Infrastructure 50/50 - NR (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding) | FTSE Global Core Infrastructure 50/50 - NR (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding) | 9.53% | 4.20%<br><sup>1</sup> |
| OECD G7 CPI + 5.5% | OECD G7 CPI + 5.5% | 7.77% | 8.68%<br><sup>1</sup> |
| <sup>1.</sup> | Since inception December 14, 2022. | Since inception December 14, 2022. | Since inception December 14, 2022. |

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No one index is representative of the Fund's portfolio.

The after-tax returns presented in the table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of

<br> 12 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Important data provider notices and terms are available at www.franklintempletondatasources.com. All data is subject to change.

Investment Manager

Franklin Advisers, Inc. (Advisers or investment manager)

Sub-Advisor

ClearBridge Investments (North America) Pty Limited (ClearBridge). For purposes of the Fund's investment strategies, techniques and risks, the term "investment manager" includes the sub-advisor.

Portfolio Managers

**Charles Hamieh** <br>Portfolio Manager of ClearBridge and ClearBridge Investments Limited and portfolio manager of the Fund since inception (2022).

**Shane Hurst** <br>Portfolio Manager of ClearBridge and ClearBridge Investments Limited and portfolio manager of the Fund since inception (2022).

**Nick Langley**<br>Founder and Portfolio Manager of ClearBridge and ClearBridge Investments Limited and portfolio manager of the Fund since inception (2022).

Purchase and Sale of Fund Shares

The Fund is an ETF. Fund shares may only be purchased and sold on a national securities exchange through a broker-dealer. The price of Fund shares is based on market price, and because ETF shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (a premium) or less than NAV (a discount). The Fund issues or redeems shares that have been aggregated into blocks of 50,000 shares or multiples thereof (Creation Units) to Authorized Participants who have entered into agreements with the Fund's distributor, Franklin Distributors, LLC (Distributors). The Fund will generally issue or redeem Creation Units in exchange for a basket of securities (and an amount of cash) that the Fund specifies each day.

An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (bid) and the lowest price a seller is willing to accept for shares of the Fund (ask) when buying or selling shares

<br> www.franklintempleton.com Prospectus 13

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

in the secondary market (the "bid-ask spread"). Recent information, including information on the Fund's NAV, market price, premiums and discounts, and bid-ask spreads is available on the Fund's website at https://www.franklintempleton.com/investments/options/exchange-traded-funds.

Taxes

The Fund's distributions are generally taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account, in which case your distributions would generally be taxed when withdrawn from the tax-advantaged account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the investment manager or other related companies may pay the intermediary for certain Fund-related activities, including those that are designed to make the intermediary more knowledgeable about exchange traded products, such as the Fund, as well as for marketing, education or other initiatives related to the sale or promotion of Fund shares. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.

<br> 14 Prospectus www.franklintempleton.com

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CLEARBRIDGE SUSTAINABLE INFRASTRUCTURE ETF<br>FUND SUMMARY

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<br> www.franklintempleton.com Prospectus 15

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|  | &nbsp;&nbsp;Franklin Distributors, LLC<br>**One Franklin Parkway** | &nbsp;&nbsp;San Mateo, CA 94403-1906<br>franklintempleton.com | &nbsp;&nbsp;**ClearBridge Sustainable Infrastructure ETF** |
| &nbsp;&nbsp;![](img_3d27dcb4cd3c4f1.jpg) |  |  |  |

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| &nbsp;&nbsp;&nbsp;INFR PSUM 08/25 |
| &nbsp;&nbsp;&nbsp;Investment Company Act file #811-23124<br>© 2025 Franklin Templeton. All rights reserved.<br>![](img_1e3c56f81af04f1.jpg)10% Total Recycled Fiber 00282347 |

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