Summary Prospectus by Investment Company - Form 497K

	Pacer US Small Cap Cash Cows Growth Leaders ETF Trading Symbol: CAFG Nasdaq Stock Market LLC Summary Prospectus April 31, 2024 www.paceretfs.com

Before you invest, you may want to review the Fund's prospectus and statement of additional information ("SAI"), which contain more information about the Fund and its risks. The current prospectus and SAI dated August 31, 2024, are incorporated by reference into this summary prospectus. You can find the Fund's prospectus, reports to shareholders, and other information about the Fund online at www.paceretfs.com/resources/items/cat/important-documents/. You can also get this information at no cost by calling 1-800-617-0004 or by sending an e-mail request to [email protected].

Investment Objective

The Pacer US Small Cap Cash Cows Growth Leaders ETF (the "Fund") is an exchange traded fund ("ETF") that seeks to track the performance, before fees and expenses, of the Pacer US Small Cap Cash Cows Growth Leaders Index (the "Index").

Fees and Expenses of the Fund

The following table describes the fees and expenses 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 and Example below.

Annual Fund Operating Expenses(expenses that you pay each year as a percentage of the value of your investment)
Management Fees	0.59%
Distribution and/or Service (12b-1) Fees	None
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.59%

Example

The following example is intended to help retail investors compare the cost of investing in the Fund with the cost of investing in other funds. It illustrates the hypothetical expenses that such investors would incur over various periods if they were to invest $10,000 in the Fund for the time periods indicated and then redeem all of the Shares at the end of those periods. This example assumes that the Fund provides a return of 5% a year and that 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	5 Years	10 Years
$60	$189	$329	$738

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. For the fiscal year ended April 30, 2024, the Fund's portfolio turnover rate was 152% of the average value of its portfolio.

Principal Investment Strategies of the Fund

The Fund employs a "passive management" (or indexing) investment approach designed to track the total return performance, before fees and expenses, of the Index. The Index is based on a proprietary methodology developed and maintained by Index Design Group (the "Index Provider"), an affiliate of Pacer Advisors, Inc., the Fund's investment adviser (the "Adviser").

1

The Index

The Index uses a rules-based methodology that seeks to provide exposure to small-capitalization U.S. companies with above average free cash flow margins. Companies with above average free cash flow margins are commonly referred to as "cash cows." The Fund considers a company to be a small-capitalization at the time of purchase if it was included in the S&P SmallCap 600® Index (the "S&P SmallCap 600") at any time within the prior six months. The initial Index universe is derived from the component companies of the S&P SmallCap 600. The initial universe of companies is screened based on their average projected free cash flows and earnings (if available) over each of the next two fiscal years. Companies for which information on their projected free cash flows or earnings is not available will remain in the Index universe. A company's projected free cash flows and earnings are determined by the Index Provider. Companies with negative average projected free cash flows or earnings are removed from the Index universe. Additionally, companies in the financial or real estate sectors are excluded from the Index universe.

Free Cash Flow (FCF): A company's cash flow from operations minus capital expenditures. Sales: The value of what a company sold to its customers during a given period; also known as revenue. Free Cash Flow Margin: FCF / Sales

The remaining companies are ranked by their free cash flow margin (defined as a company's free cash flow divided by sales) for the trailing twelve month period. The equity securities of the 100 companies with the highest free cash flow margin are included in the Index. Companies included in the Index are weighted by their price momentum score and a company's price momentum score is calculated on each of the reconstitution dates. The effect of the price momentum score is to overweight companies with relative positive price momentum, while underweighting companies with relative negative price momentum over a period of approximately the prior six months.

The weight of any individual company included in the Index is capped at 5%. Weight above the 5% limitation is redistributed among the other Index constituents in proportion to their weights. As of June 30, 2024, the companies included in the Index had a market capitalization of $491 million to $8.1 billion. As of June 30, 2024, the Index had significant exposure to the health care, information technology and industrials sectors. The Index is reconstituted and rebalanced quarterly as of the close of business on the third Friday of March, June, September, and December based on data as of the first Friday of the applicable rebalance month.

The Fund's Investment Strategy

Under normal circumstances, the Fund will seek to invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities of small-capitalization companies ("small cap") that are principally traded in the United States. The Adviser expects that, over time, the correlation between the Fund's performance and that of the Index, before fees and expenses, will be 95% or better.

The Fund will generally use a "replication" strategy to achieve its investment objective, meaning it will invest in all of the component securities of the Index in the same approximate proportion as in the Index.

The Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund.

Principal Risks of Investing in the Fund

You can lose money on your investment in the Fund. The Fund is subject to the risks summarized below. Some or all of these risks may adversely affect the Fund's net asset value per share ("NAV"), trading price, yield, total return and/or ability to meet its objectives. For more information about the risks of investing in the Fund, see the section in the Fund's prospectus entitled "Additional Information about the Principal Risks of Investing in the Fund." The principal risks are presented in alphabetical order to facilitate finding particular risks and comparing them with other funds. Each risk summarized below is considered a "principal risk" of investing in the Fund, regardless of the order in which it appears.

•Calculation Methodology Risk. The Index relies directly or indirectly on various sources of information to assess the criteria of issuers included in the Index, including information that may be based on assumptions and estimates. Neither the Fund, the Index Provider, or the Adviser (as defined below) can offer assurances that the Index's calculation methodology or sources of information will provide an accurate assessment of included components or a correct valuation of securities, nor can they guarantee the availability or timeliness of the production of the Index.

•Concentration Risk. If the Index concentrates in an industry or group of industries, the Fund's investments may be concentrated accordingly. In such event, the value of the Fund's shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. In addition, at times, an industry or group of industries in which the Fund is concentrated may be out of favor and underperform other industries or groups of industries.

2

•Equity Market Risk. The equity securities held in the Fund's portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund's NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.

•ETF Risks. The Fund is an ETF and, as a result of an ETF's structure, is exposed to the following risks:

◦Authorized Participants ("APs"), Market Makers, and Liquidity Providers Concentration Risk.The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.

◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund's portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund's NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices.

◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the "Exchange"), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund's underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.

•Growth Stock Risk. The stocks of growth companies can be more sensitive to the company's earnings and more volatile than the market in general.

•Limited Operating History. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors have a limited track record on which to base their investment decision. An investment in the Fund may therefore involve greater uncertainty than an investment in a fund with a more established record of performance.

•Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund's volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund's performance.

•Passive Investment Risk. The Fund is not actively managed and the Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.

•Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors.

◦Health Care Sector Risk. Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses,

3

rising costs of medical products and services, pricing pressure (including price discounting), limited product lines and an increased emphasis on the delivery of healthcare through outpatient services.

◦Industrials Sector Risk. The Fund may invest in companies in the industrials sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The industrials sector may be affected by changes in the supply of and demand for products and services, product obsolescence, claims for environmental damage or product liability and general economic conditions, among other factors.

◦Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund's investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.

•Small-Capitalization Companies Risk. The equity securities of small-capitalization companies have historically been subject to greater investment risk than securities of larger companies. The prices of equity securities of small-capitalization companies tend to be more volatile and less liquid than the prices of equity securities of larger companies.

•Tracking Risk. The Fund's return may not track the return of the Index for a number of reasons. For example, the Fund incurs a number of operating expenses not applicable to the Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund's securities holdings to reflect changes in the composition of the Index.In addition, when the Fund uses a representative sampling approach, the Fund may not be as well correlated with the return of the Index as when the Fund purchases all of the securities in the Index in the proportions in which they are represented in the Index.

Fund Performance

Performance information for the Fund is not included because the Fund had not yet been in operation one full calendar year as of the date of this Prospectus. In the future, performance for the Fund will be presented in this section. Updated performance information will be available on the Fund's website at www.PacerETFs.com or by calling the Fund toll-free at 1-877-337-0500.

Management

Investment Adviser

Pacer Advisors, Inc. (the "Adviser") serves as investment adviser to the Fund.

Portfolio Managers

Bruce Kavanaugh, Vice President of the Adviser, and Danke Wang, CFA, Portfolio Manager for the Adviser, are jointly and primarily responsible for the day-to-day management of the Fund and have served as portfolio managers since the Fund's inception.

Buying and Selling Fund Shares

The Fund is an ETF. This means that individual Shares of the Fund may only be purchased and sold in the secondary market through brokers at market prices, rather than NAV. Because Shares trade at market prices rather than NAV, Shares may trade at a price greater than NAV (premium) or less than NAV (discount).

The Fund generally issues and redeems shares at NAV only in large blocks of shares known as "Creation Units," which only institutions or large investors may purchase or redeem. The Fund generally issues and redeems Creation Units in exchange for a portfolio of securities (the "Deposit Securities") and/or a designated amount of U.S. cash that the Fund specifies each day.

Investors 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 in the secondary market (the "bid-ask spread"). Recent information about the Fund, including its net asset value, market price, premiums and discounts, and bid-ask spreads is available on the Fund's website at www.PacerETFs.com.

Tax Information

Fund distributions are generally taxable as ordinary income, qualified dividend income, or capital gains (or a combination), unless your investment is in an IRA or other tax-advantaged retirement account. Distributions may be taxable upon withdrawal from tax-deferred accounts.

Payments to Broker-Dealers and Other Financial Intermediaries

4

If you purchase the Fund through a broker or other financial intermediary (such as a bank), the Adviser and its related companies may pay the intermediary for activities related to the marketing and promotion of the Fund. 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.

5