Summary Prospectus by Investment Company (Form 497K)

PRINCIPAL LONG DURATION ETF

Ticker Symbol			Principal U.S. Listing Exchange
DWWN			Cboe BZX

Principal Exchange-Traded Funds Summary Prospectus May 20, 2026

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.PrincipalAM.com/ETFProspectuses. You can also get this information at no cost by calling 1-800-222-5852 or by sending an email request to [email protected].

The Fund's Prospectus and Statement of Additional Information, both dated April 20, 2026, as may be amended or supplemented, are incorporated by reference into this Summary Prospectus.

Objective: The Fund seeks to provide current income and, as a secondary objective, capital appreciation during periods of falling U.S. interest rates.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund ("Shares"). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table or the example below.

Annual Fund Operating Expenses

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

Management Fees			0.19%
Other Expenses(1)			0.00%
Total Annual Fund Operating Expenses(2)			0.19%

(1)Based on estimated amounts.

(2)The investment management agreement (the "Management Agreement") between the Fund and Principal Global Investors, LLC ("PGI") provides that, for the duration of the Management Agreement, PGI will pay all operating expenses of the Fund, except for the Management Fee, payments made under the Fund's Rule 12b-1 plan (if or when such fees are imposed), brokerage commissions and other expenses connected to the execution of portfolio transactions, interest expense, taxes, acquired fund fees and expenses, litigation expenses, and tax reclaim recovery expenses and other extraordinary expenses.

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 redeem all of your shares at the ends of those periods. 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:

			1 year			3 years
Principal Long Duration ETF			$19			$61

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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. This Fund is new and does not have a portfolio turnover rate to disclose.

Principal Investment Strategies

The Fund is an actively managed exchange-traded fund ("ETF") that seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets, plus any borrowings for investment purposes, in Separate Trading of Registered Interest and Principal of Securities ("STRIPS"). STRIPS are created by separating a U.S. Treasury security's interest payments from its principal; the detached interest components are sold individually as zero-interest securities, while the principal component of the U.S. Treasury security is redeemed at par at maturity. U.S. Treasury securities are securities of varying maturities issued or guaranteed by the U.S. Department of the Treasury ("U.S. Treasury") where the payment of principal and interest is backed by the full faith and credit of the U.S. government. The Fund may also invest in U.S. Treasury securities, such as U.S. Treasury notes, U.S. Treasury bills and U.S. Treasury floating rate bonds.

The Fund is not managed to a particular maturity. Under normal circumstances, the Fund maintains an average portfolio duration that is within +/- 10% of the duration of the Bloomberg US STRIPS 20+ Year Index, which as of March 31, 2026, was 24.38 years.

The Fund invests in derivatives, including futures and swaps, for hedging purposes, for tactical positioning, and to manage duration. A derivative is a financial arrangement, the value of which is derived from, or based on, a traditional security, asset, or market index. The Fund may also use interest rate futures to manage duration, as well as for tactical interest rate positioning and cash management.

The Fund's strategies may result in the active and frequent trading of the Fund's portfolio securities.

Principal Risks

The value of your investment in the Fund changes with the value of the Fund's investments. Many factors affect that value, and it is possible to lose money by investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund are listed below in alphabetical order and not in order of significance.

Active Management Risk. There is no guarantee that the investment techniques, analyses, or judgments that the Fund's investment advisor and/or sub-advisor applies in making investment decisions for the Fund will produce the intended outcome or that the investments the advisor selects for the Fund will perform as well as other securities that were not selected for the Fund. The Fund may not achieve its investment objective, and it is not intended to be a complete investment program.

Counterparty Risk. Counterparty risk is the risk that the counterparty to a contract or other obligation will be unable or unwilling to honor its obligations.

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Derivatives Risk. Derivatives may not move in the direction anticipated by the portfolio manager. Transactions in derivatives may increase volatility, cause the liquidation of portfolio positions when not advantageous to do so, and result in disproportionate losses that may be substantially greater than a fund's initial investment.

•Futures. Futures contracts involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the futures contract; possible lack of a liquid secondary market for a futures contract and the resulting inability to close a futures contract when desired; counterparty risk; and if the Fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.

•Swaps. Swaps involve specific risks, including: the imperfect correlation between the change in market value of the instruments held by the Fund and the price of the swap; possible lack of a liquid secondary market for a swap and the resulting inability to close a swap when desired; counterparty risk; and if the Fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements.

Fixed-Income Securities Risk. Fixed-income securities are subject to interest rate, credit quality, and liquidity risks. The market value of fixed-income securities generally declines when interest rates rise, and increased interest rates may adversely affect the liquidity of certain fixed-income securities. Moreover, an issuer of fixed-income securities could default on its payment obligations due to increased interest rates or for other reasons.

Hedging Risk. A fund that implements a hedging strategy using derivatives and/or securities could expose the fund to the risk that can arise when a change in the value of a hedge does not match a change in the value of the asset it hedges. In other words, the change in value of the hedge could move in a direction that does not match the change in value of the underlying asset, resulting in a risk of loss to the fund.

High Portfolio Turnover Risk. High portfolio turnover (more than 100%) caused by active and frequent trading of portfolio securities may result in accelerating the realization of taxable gains and losses, lower fund performance, and increased brokerage costs.

Interest Rate Risk. When interest rates increase, fixed-income securities or instruments held by the Fund will generally decline in value. Long-term fixed-income securities or instruments will normally have more price volatility because of this risk than short-term fixed-income securities or instruments. Changing interest rates may have unpredictable effects on the markets, may result in heightened market volatility and may detract from Fund performance. In addition, changes in monetary policy may exacerbate the risks associated with changing interest rates. Funds with longer average portfolio durations will generally be more sensitive to changes in interest rates than funds with a shorter average portfolio duration. Fluctuations in interest rates may also affect the liquidity of fixed-income securities and instruments held by the Fund.

Market Trading Risks. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, and disruption to the activities of market makers, limited pool of authorized participants, or other participants and in the creation / redemption process of the Fund. ANY OF THESE FACTORS MAY LEAD TO THE FUND'S SHARES TRADING AT A PREMIUM OR DISCOUNT TO NAV.

Portfolio Duration Risk. Portfolio duration is a measure of the expected life of a fixed-income security and its sensitivity to changes in interest rates. The longer a fund's average portfolio duration, the more sensitive the fund will be to changes in interest rates, which means funds with longer average portfolio durations may be more volatile than those with shorter durations.

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Redemption and Large Transaction Risk. Ownership of the Fund's shares may be concentrated in one or a few large investors (such as funds of funds, institutional investors, and asset allocation programs) that may sell or purchase Fund shares in large quantities on the secondary market. These secondary market transactions may cause authorized participants to increase their purchases and redemptions of creation units from the Fund. Redemptions by large shareholders could have a significant negative impact on the Fund, including on the Fund's liquidity. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the Fund's exchange and may, therefore, have a material upward or downward effect on the market price of the shares.

U.S. Treasury Securities Risk. A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed only as to the timely payment of interest and principal when held to maturity, but the market prices for such securities are not guaranteed and will fluctuate. Because U.S. Treasury Securities trade actively outside the United States, their prices may rise and fall as changes in global economic conditions affect the demand for these securities. In addition, changes in the credit rating or financial condition of the U.S. government may cause the value of U.S. Treasury securities to decline.

U.S. Treasury STRIPS Risk. STRIPS are created by separating the income and principal components of a debt instrument and selling them separately. STRIPS are also called "zero-coupon" securities because they do not make periodic interest payments; therefore, they have longer durations than U.S. Treasury securities with similar maturities that distribute interest on a regular basis. As a result, the market value of STRIPS generally fluctuates more in response to interest rate movements than the value of traditional notes or bonds. STRIPS generally lose value when interest rates rise. The risk is greater when the period to maturity is longer.

Performance

No performance information is shown because the Fund has not yet had a calendar year of performance. The Bloomberg US Aggregate Index is the Fund's primary broad-based securities market index. The Bloomberg US STRIPS 20+ Year Index is included as an additional index for the Fund as it shows how the Fund's performance compares with the returns of an index of funds with similar investment objectives. Performance information provides an indication of the risks of investing in the Fund. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You may get updated performance information (when available) at www.principalam.com/etfperformance.

Investment Advisor and Portfolio Managers

Principal Global Investors, LLC

•Jeff Callahan (since 2026), Portfolio Manager

•Zach Gassmann (since 2026), Portfolio Manager

Purchase and Sale of Fund Shares

The Fund issues and redeems Shares at net asset value ("NAV") only with authorized participants ("APs") who have entered into agreements with the Fund's distributor in exchange for the deposit or delivery of a basket of securities that the Fund specifies each day. Except when aggregated in creation units, the Shares are not redeemable securities of the Fund. Typically, the basket of assets will be made up of securities but may include a cash component. (See "Purchase and Redemption of Creation Units" in the Statement of Additional Information for more information.)

Shares of the Fund are listed for trading on Cboe BZX Exchange, Inc. Individual Shares may only be bought and sold in the secondary market through a broker or dealer at a market price. Because Shares trade at market prices rather than NAV, Shares may trade at prices greater than NAV (at a premium), at NAV, or less than NAV (at a discount). An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase Shares (bid) and the lowest price a seller is willing to accept for Shares (ask) when buying or selling Shares on the secondary market (the bid-ask spread).

You can access recent information, including information on the Fund's net asset value, market price, premiums and discounts, and bid-ask spreads (when available) at www.PrincipalAM.com.

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Tax Information

The Fund's distributions you receive are generally subject to federal income tax as ordinary income or capital gain and may also be subject to state and local taxes, unless you are tax-exempt or your account is tax-deferred in which case your distributions would be taxed when withdrawn from the tax-deferred account.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary, the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. 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.

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