Semper Short Duration Fund Summary Prospectus February 28, 2023
	Institutional Class Investor Class	SEMIX SEMRX

Before you invest, you may want to review the Semper Short Duration Fund’s (the “Short Duration Fund” or the “Fund”) Statutory Prospectus, which contains more information about the Short Duration Fund and its risks. The current Statutory Prospectus and Statement of Additional Information dated February 28, 2023, are incorporated by reference into this Summary Prospectus. You can find the Short Duration Fund’s Statutory Prospectus, reports to shareholders and other information about the Fund online at https://www.sempercap.com/fund-documents. You can also get this information at no cost by calling 1-855-736-7799 (855-SEM-PRXX) or by sending an e-mail request to Info@sempercap.com.

Investment Objectives

The Short Duration Fund seeks to provide a high level of current income that is consistent with preservation of capital.

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. 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.

	Institutional Class	Investor Class
SHAREHOLDER FEES(fees paid directly from your investment)	None	None

ANNUAL FUND OPERATING EXPENSES(expenses that you pay each year as a percentage of the value of your investment)
Management Fees	0.35%	0.35%
Distribution and Service (Rule 12b-1) Fees	None	0.25%
Other Expenses	0.31%	0.31%
Interest Expense	0.01%	0.01%
Total Annual Fund Operating Expenses	0.66%	0.91%
Less: Fee Waiver	-0.05%	-0.05%
Total Annual Fund Operating Expenses After Fee Waiver(1)	0.61%	0.86%

(1)Semper Capital Management, L.P. (the “Adviser”) has contractually agreed to waive a portion or all of its management fees and pay Fund expenses to ensure that Total Annual Fund Operating Expenses After Fee Waiver (excluding AFFE, taxes, interest expense, dividends on securities sold short, extraordinary expenses, Rule 12b-1 fees, shareholder servicing fees and any other class-specific expenses) do not exceed 0.60% of average daily net assets of the Fund (the “Expense Cap”). The Expense Cap will remain in effect through at least March 29, 2024 and may be terminated only by Advisors Series Trust’s (the “Trust”) Board of Trustees (the “Board”). The Adviser may request recoupment of previously waived fees and paid expenses from the Fund for 36 months from the date they were waived or paid, subject to the Expense Cap at the time such amounts were waived or at the time of recoupment, whichever is lower.

Example.This Example is intended to help you compare the cost of investing in the Short Duration Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end 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 (taking into account the Expense Cap only in the first year). 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
Institutional Class	$62	$206	$363	$818
Investor Class	$88	$285	$499	$1,115

Portfolio Turnover. The Short Duration 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 42% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Short Duration Fund invests primarily in investment-grade debt securities of domestic entities. The Adviser considers securities to be of investment grade quality if they are rated BBB (or comparable) or higher by a nationally recognized credit rating organization including S&P Global Ratings (“S&P”) and Moody’s Investors Service, Inc. (“Moody’s”), or if unrated, determined by the Adviser to be of comparable quality. The Fund may hold securities that, after being purchased, are downgraded to non-investment grade and would no longer qualify for initial investment. Under normal circumstances, the Fund expects to maintain a weighted average portfolio duration of up to three years. The Fund defines duration as effective duration which is the interest rate sensitivity of projected cash flows from Fund securities, adjusted for amortization, prepayments, and expected calls and puts. This means that the price of a debt security with a duration of three years would be expected to decrease by approximately 3% with a 1% increase in interest rates. The Fund believes that effective duration provides the most accurate estimation of the Fund’s interest rate sensitivity.

The Short Duration Fund may invest in asset-backed securities (“ABS”), including mortgage-backed securities (“MBS”). MBS refers to a type of fixed income instrument that represents an interest in a pool of mortgages, including residential MBS (“RMBS”), commercial MBS (“CMBS”) and securities issued by government sponsored entities (“agency MBS”). MBS, including CMBS and RMBS, include fixed and variable rate securities with underlying fixed or variable rate mortgage loans and securities issued by private entities (“non-agency MBS”). As part of the Fund’s agency RMBS investments, the Fund may invest in credit risk transfer securities. Credit risk transfer securities are fixed- or floating-rate unsecured general obligations issued from time to time by Freddie Mac, Fannie Mae or other government sponsored entities.

Debt securities may include all fixed-income securities (both fixed and floating-rate securities), Rule 144A securities, U.S. government securities, municipal securities, collateralized loan obligations (“CLOs”), special purpose entities (such as asset-backed or mortgage-backed security issuers), zero coupon securities, money market securities, repurchase agreements and private asset-backed loan participations. Certain asset-backed and mortgage-backed securities are issued with stated maturities of 15 to 40 years; however, their effective durations are generally under 3 years. U.S. government securities include U.S. Treasury bills, notes and other obligations that are issued by or guaranteed as to interest and principal by the U.S. government or by agencies or instrumentalities of the U.S. government. The Fund may also invest in high yield instruments that are rated below investment grade (i.e., “high yield” or “junk” ratings). The Fund may also invest up to 10% of its total assets in other investment companies, including exchange-traded funds (“ETFs”).

The Adviser will allocate the Short Duration Fund’s assets across different market sectors and different maturities based on its view of the relative value of each sector or maturity. From time to time, the Adviser will consider investment research and recommendations provided by the Sub-Adviser but the Adviser retains all final decision making. The Short Duration Fund may purchase and sell securities for a variety of reasons, such as to adjust the portfolio’s average maturity, duration, or credit quality or to shift assets into and out of higher yielding or lower yielding securities or different sectors.

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Principal Investment Risks

By itself, the Fund is not a complete, balanced investment plan. The Fund cannot guarantee that it will achieve its investment objectives. Losing all or a portion of your investment is a risk of investing in the Fund. The following risks are considered principal and could affect the value of your investment in the Fund:

•General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes due to a number of factors, including: inflation (or expectations for inflation); interest rates; global demand for particular products or resources; natural disasters or events; pandemic diseases; terrorism; regulatory events; and government controls. U.S. and international markets have experienced significant periods of volatility in recent years and months due to a number of economic, political and global macro factors including the impact of COVID-19 as a global pandemic, which has resulted in a public health crisis, disruptions to business operations and supply chains, stress on the global healthcare system, growth concerns in the U.S. and overseas, staffing shortages and the inability to meet consumer demand, and widespread concern and uncertainty. The global recovery from COVID-19 is proceeding at slower than expected rates due to the emergence of variant strains and may last for an extended period of time. Continuing uncertainties regarding interest rates, rising inflation, political events, rising government debt in the U.S. and trade tensions also contribute to market volatility. As a result of continuing political tensions and armed conflicts, including the war between Ukraine and Russia, the U.S. and the European Union imposed sanctions on certain Russian individuals and companies, including certain financial institutions, and have limited certain exports and imports to and from Russia. The war has contributed to recent market volatility and may continue to do so.

•Management Risk. The Fund is an actively managed portfolio. The Adviser’s management practices and investment strategies might not work to produce the desired results.

•Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid securities may reduce the returns of the Fund because it may be difficult to sell the illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed-income securities or the lack of an active market. Liquid investments may become illiquid or less liquid after purchase by the Short Duration Fund, particularly during periods of market turmoil. Illiquid and relatively less liquid investments may be harder to value, especially in changing markets.

•Fixed-Income Securities Risk. Fixed-income (debt) securities are generally subject to the following risks:

•Credit Risk. The Fund’s investments are subject to the risk that issuers and/or counterparties will fail to make payments when due or default completely. Prices of the Fund’s investments may be adversely affected if any of the issuers or counterparties it is invested in are subject to an actual or perceived deterioration in their credit quality. Credit spreads may increase, which may reduce the market values of the Fund’s securities. Credit spread risk is the risk that economic and market conditions or any actual or perceived credit deterioration may lead to an increase in the credit spreads (i.e., the difference in yield between two securities of similar maturity but different credit quality) and a decline in price of the issuer’s securities.

•Extension Risk. If interest rates rise, repayments of principal on certain fixed-income securities may occur at a slower-than-expected rate and, as a result, the expected maturity of such securities could lengthen which could cause their value to decline.

•Interest Rate Risk. The value of the Fund’s investments in fixed-income securities will change based on changes in interest rates. If interest rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value.

•Prepayment Risk. Issuers of securities held by the Fund may be able to prepay principal due on these securities, particularly during periods of declining interest rates. Securities subject to prepayment risk generally offer less potential for gains when interest rates decline, and may offer a greater potential for loss when interest

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rates rise. When securities are prepaid, the Short Duration Fund may have to reinvest in securities with a lower yield.

•Risks Associated with Mortgage-Backed and Other Asset-Backed Securities. In addition to the risks associated with other fixed income securities, mortgage-backed and asset-backed securities are subject to certain other risks. The value of these securities will be influenced by the factors affecting the housing market or the other assets underlying such securities. As a result, during periods of declining asset values, difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, mortgage-backed and asset-backed securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid.The liquidity of these assets may change over time.

•Residential Mortgage-Backed Securities Risk. RMBS are subject to the risks generally associated with mortgage-backed securities. RMBS may not be backed by the full faith and credit of the U.S. government and are subject to risk of default on the underlying mortgages. RMBS issued by non-government entities may offer higher yields than those issued by government entities, but also may be subject to greater volatility than government issues. Delinquencies and defaults by borrowers in payments on the underlying mortgages, and the related losses, are affected by general economic conditions, the borrower’s equity in the mortgaged property and the borrower’s financial circumstances.

•Credit Risk Transfer Securities Risk. Credit risk transfer securities are unguaranteed and unsecured debt securities issued by the government sponsored entity and therefore are not directly linked to or backed by the underlying mortgage loans. As a result, in the event that a government sponsored entity fails to pay principal or interest on its credit risk transfer securities or goes through a bankruptcy, insolvency or similar proceeding, holders of such credit risk transfer securities have no direct recourse to the underlying mortgage loans and will generally receive recovery on par with other unsecured note holders in such a scenario. The risks associated with an investment in credit risk transfer securities are different than the risks associated with an investment in mortgage-backed securities issued by Fannie Mae and Freddie Mac, or other government sponsored entities or issued by a private issuer, because some or all of the mortgage default or credit risk associated with the underlying mortgage loans is transferred to investors. As a result, investors in these securities could lose some or all of their investment in these securities if the underlying mortgage loans default.

•Privately Issued Mortgage-Related Securities Risk. MBS issued or guaranteed by private issuers is also known as “non-agency MBS”. Privately issued mortgage-backed securities generally offer a higher rate of interest (but greater credit risk) than securities issued by U.S. government issuers, as there are no direct or indirect governmental guarantees of payment. The degree of risks will depend significantly on the ability of borrowers to make payments on the underlying mortgages and the seniority of the security held by the Fund with respect to such payments. The market for privately-issued mortgage-backed securities is smaller and less liquid than the market for mortgage-backed securities issued by U.S. government issuers.

•Collateralized Loan Obligation Risk. Collateralized loan obligations are generally subject to credit, interest rate, valuation, liquidity, prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of collateralized loan obligations may be affected by, among other things, changes in the market value of the underlying assets held by the CLO, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, prices and interest rates of underlying assets.

•Commercial Mortgage-Backed Securities Risk. CMBS are subject to the risks generally associated with mortgage-backed securities. CMBS may not be backed by the full faith and credit of the U.S. government and are subject to risk of default on the underlying mortgages. CMBS issued by non-government entities may offer higher yields than those issued by government entities, but also may be subject to greater volatility than government issues. CMBS react differently to changes in interest rates than other bonds and the prices of CMBS may reflect adverse economic and market conditions. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of CMBS.

•Sub-Prime Mortgage Risk. The risk that an issuer of a sub-prime mortgage security will default on its payments of interest or principal on a security when due is more pronounced in the case of sub-prime mortgage instruments

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than more highly ranked securities. Because of this increased risk, these securities may also be less liquid and subject to more pronounced declines in value than more highly rated instruments in times of market stress.

•Risks Associated with Real Estate and Regulatory Actions. The securities that the Fund owns are dependent on real estate prices. If real estate experiences a significant price decline, this could adversely affect the prices of the securities the Fund owns. Any adverse regulatory action could impact the prices of the securities the Fund owns.

•High Yield Risk. Fixed income securities that are rated below investment grade (i.e., “junk bonds”) are subject to additional risk factors due to the speculative nature of the securities, such as increased possibility of default liquidation of the security, and changes in value based on public perception of the issuer.

•Concentration Risk.To the extent the Fund may concentrate its investments in a particular industry or sector; the Fund’s shares may be more volatile and fluctuate more than shares of a fund investing in a broader range of securities.

•Counterparty Risk. Counterparty risk arises upon entering into borrowing arrangements and is the risk from the potential inability of counterparties to meet the terms of their contracts.

•Leverage Risk. Leverage is the practice of borrowing money to purchase securities.  Leverage can increase the investment returns of the Fund if the securities purchased increase in value in an amount exceeding the cost of the borrowing.  However, if the securities decrease in value, the Fund will suffer a greater loss than would have resulted without the use of leverage.

•Repurchase Agreement Risk. Repurchase agreement risk is the risk the counterparty to the repurchase agreement that sells the securities may default on its obligation to repurchase them. In this circumstance, the Fund may lose money because: it may not be able to sell the securities at the agreed-upon time and price, the securities may lose value before they can be sold, the selling institution may default or declare bankruptcy or the Fund may have difficulty exercising rights to the collateral.

•Rule 144A Securities Risk. The market for Rule 144A securities typically is less active than the market for publicly-traded securities. Rule 144A securities carry the risk that the liquidity of these securities may become impaired, making it more difficult for the Fund to sell these securities.

•When-Issued Securities Risk.  The price or yield obtained in a when-issued transaction may be less favorable than the price or yield available in the market when the securities delivery takes place, or that failure of a party to a transaction to consummate the trade may result in a loss to the Fund or missing an opportunity to obtain a price considered advantageous.

•Portfolio Turnover Risk. A high portfolio turnover rate (100% or more) has the potential to result in the realization and distribution to shareholders of higher capital gains, which may subject you to a higher tax liability. A high portfolio turnover rate also leads to higher transactions costs.

•Investment Company Risk.  When the Fund invests in an ETF or mutual fund, it will bear additional expenses based on its pro rata share of the ETF’s or mutual fund’s operating expenses, including the potential duplication of management fees.  The risk of owning an ETF or mutual fund generally reflects the risks of owning the underlying securities the ETF or mutual fund holds.  The Fund also will incur brokerage costs when it purchases ETFs.

•Municipal Securities Risk. The amount of public information available about municipal securities is generally less than that for corporate securities. Special factors, such as legislative changes, and economic and business developments, may adversely affect the yield and/or value of the Fund’s investments in municipal securities. Other factors include the general conditions of the municipal securities market, the size of the particular offering, the maturity of the obligation, and the rating of the issue. Changes in economic, business or political conditions relating to a particular municipal project, municipality, or state in which the Fund invests may have an impact on the Fund’s share price.

•U.S. Government Securities Risk. The Fund may invest in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities (such as securities issued by the Government National Mortgage Association (Ginnie Mae), the Federal National Mortgage Association (Fannie Mae), or the Federal Home Loan Mortgage Corporation (Freddie Mac)). U.S. government securities are subject to market risk, interest rate risk and credit risk. Securities, such as those issued or guaranteed by Ginnie Mae or the U.S. Treasury, that are backed by the full faith

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and credit of the United States are guaranteed only as to the timely payment of interest and principal when held to maturity and the market prices for such securities will fluctuate. Notwithstanding that these securities are backed by the full faith and credit of the United States, circumstances could arise that would prevent the payment of interest or principal. This would result in losses to the Fund. Securities issued or guaranteed by U.S. government-related organizations, such as Fannie Mae and Freddie Mac, are not backed by the full faith and credit of the U.S. government and no assurance can be given that the U.S. government will provide financial support. Therefore, U.S. government-related organizations may not have the funds to meet their payment obligations in the future.

Performance

The Short Duration Fund was organized on March 28, 2014 to acquire the assets and liabilities of the Semper Short Duration Fund, a series of Forum Funds (the “Predecessor Fund”), in exchange for shares of the Fund. Accordingly, the Fund is the successor to the Predecessor Fund, and the following performance information shown prior to March 28, 2014, is that of the Predecessor Fund. The Fund has an investment objective, strategies and policies substantially similar to the Predecessor Fund, which was also advised by the Adviser. The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year. The bar chart shows changes in the Institutional Class’ performance from year to year. The table shows how the Fund’s Institutional Class and Investor Class average annual returns for the one-year, five-year, ten-year and since inception periods compare with those of broad measures of market performance. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at https://www.sempercap.com/short-duration-fund or by calling the Fund toll-free at 1-855-736-7799 (855-SEM-PRXX).

Calendar Year Total Returns as of December 31 – Institutional Class

During the period of time shown in the bar chart, the Fund’s highest return for a calendar quarter was 6.57% (quarter ended June 30, 2020) and the lowest return for a calendar quarter was -10.10% (quarter ended March 31, 2020).

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Average Annual Total Returns (For the periods ended December 31, 2022)	1 Year	5 Years	10 Years	Since Inception (12/23/2010)
Institutional Class
Return Before Taxes	-1.58%	1.06%	1.46%	1.90%
Return After Taxes on Distributions	-2.90%	-0.04%	0.31%	0.81%
Return After Taxes on Distributions and Sale of Fund Shares	-0.94%	0.35%	0.61%	0.99%
Investor Class
Return Before Taxes	-1.83%	0.82%	1.21%	1.65%
Bloomberg 1-3 Year Government Index (reflects no deduction for fees, expenses or taxes)	-3.81%	0.74%	0.66%	0.74%
Bloomberg 1-3 Year U.S. Treasury Index (reflects no deduction for fees, expenses or taxes)	-3.82%	0.74%	0.65%	0.73%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Short Duration Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”). The after-tax returns are shown only for the Institutional Class; the after-tax returns for the Investor Class will vary to the extent it has different expenses. The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.

Management

Investment Adviser. Semper Capital Management, L.P. is the Short Duration Fund’s investment adviser.

Sub-Adviser. Medalist Partners LP (“Medalist” or the “Sub-Adviser”) is the Short Duration Fund’s sub-adviser.

Portfolio Manager. Mr. Thomas Mandel, CFA, Chief Investment Officer and Portfolio Manager, and Mr. Vesta Marks, CFA, CAIA, Portfolio Manager and Head of Trading are the portfolio managers primarily responsible for the day-to-day management of the Short Duration Fund. Mr. Mandel has managed the Fund since its inception in 2010 and Mr. Marks has managed the Fund since January 2023.

Purchase and Sale of Fund Shares

You may purchase, exchange or redeem Short Duration Fund shares on any business day by written request via mail (Semper Short Duration Fund, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, WI 53201-0701), by telephone at 1-855-736-7799 (855-SEM-PRXX), online, or through a financial intermediary. You may also purchase or redeem Fund shares by wire transfer. Online, investors may also view their accounts, view their transaction history, and perform maintenance changes to their accounts. Investors who wish to purchase, exchange or redeem Fund shares through a financial intermediary should contact the financial intermediary directly. The minimum initial and subsequent investment amounts for all accounts are shown below.

	Minimum	Minimum
	Initial	Subsequent
	Investment	Investment
Institutional Class	$1,000,000	$1,000
Investor Class	$2,500	$1,000

Tax Information

The Short Duration Fund’s distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an IRA. Distributions on investments made through tax-deferred arrangements may be taxed later upon withdrawal of assets from those accounts.

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Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Short Duration Fund through a broker-dealer or other financial intermediary, the Fund and/or the Adviser 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 financial 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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