UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-03894

T. Rowe Price Short-Term Bond Fund, Inc.

(Exact name of registrant as specified in charter)

100 East Pratt Street, Baltimore, MD 21202

(Address of principal executive offices)

David Oestreicher

100 East Pratt Street, Baltimore, MD 21202

(Name and address of agent for service)

Registrant’s telephone number, including area code: (410) 345-2000

Date of fiscal year end: May 31

Date of reporting period: May 31, 2021

*Certain mutual fund accounts that are assessed an annual account service fee can also save money by switching to e-delivery.

Global stock markets produced very strong returns during your fund’s fiscal year, the 12-month period ended May 31, 2021, while rising yields weighed on returns in some bond sectors. Investor sentiment was buoyed by the rollout of coronavirus vaccines, unprecedented fiscal and monetary stimulus, and expectations that the economy would benefit from a release of pent-up demand.

All major global and regional equity benchmarks recorded positive results during the period, and returns in the 20% to 50% range were common across developed and emerging markets. The large-cap S&P 500 Index gained 40% for the 12-month period and finished up nearly 25% above where it stood just before the pandemic roiled markets early last year.

Market leadership shifted during the period as successful vaccine trials in November spurred a rotation toward segments that had been beaten down in the initial phase of the pandemic. Value shares rebounded and outperformed their growth counterparts for the reporting period, and sector leaders also changed. Within the S&P 500, financial stocks produced strong gains as banks benefited from rising longer-term interest rates, and the materials and the industrials and business services sectors outperformed amid higher commodity prices and a rebound in economic growth. Energy stocks, which had negative results in the first half of our reporting period, staged a strong recovery as oil prices rallied to their highest level in more than two years. Meanwhile, information technology and consumer discretionary companies, which had been the big winners in the early days of the pandemic, produced more modest gains later in the period.

Outside the U.S., emerging markets generally outpaced stocks in developed markets. A weaker U.S. dollar aided returns for U.S. investors in most regions.

Fiscal and monetary support remained a key factor in providing a positive backdrop for markets. President Joe Biden signed the American Rescue Plan Act into law in March, a $1.9 trillion program that included direct payments of up to $1,400 to most Americans. The Federal Reserve kept its short-term lending rate near zero, and policymakers emphasized that the time had not yet arrived for scaling back asset purchases designed to keep downward pressure on long-term interest rates.

Economic news was also generally positive. According to the latest estimate, U.S. gross domestic product grew at an annualized rate of 6.4% in the first quarter of 2021 following 4.3% growth in the fourth quarter of 2020.

Meanwhile, overall profits for companies in the S&P 500 rose by roughly 52% versus the year before in the first quarter, according to FactSet—the best showing since late 2009.

Inflation data drew increasing attention later in the period as investors tried to assess the impact of higher prices on the broader economy as well as the chance that an overheating economy might lead the Fed to start rolling back its accommodative monetary policies earlier than expected. The central bank’s preferred inflation measure, the core personal consumption expenditures price index, increased 3.1% in the year ended in April, the biggest increase in nearly three decades and above the Fed’s 2% inflation target. However, Fed policymakers stressed that the increase in inflation was a temporary result of the economic recovery and that they remain committed to accommodative policy.

As expected—since higher prices erode the value of the fixed payments provided by bonds—rising inflation concerns were more evident in the fixed income market than in equities. Yields of longer-term Treasuries surged during the first quarter of 2021 as inflation expectations increased, weighing on returns for the sector. (Bond prices and yields move in opposite directions.) High yield bonds, which are less sensitive to interest rate changes, produced strong results, though, and investment-grade corporate bonds also performed well amid solid corporate fundamentals. Mortgage-backed securities, despite considerable Fed support during the period, had negative results amid uncertainty regarding when the central bank would begin tapering its asset purchases.

As we look ahead, the central question for investors—assuming the economy’s recovery from the pandemic continues apace—is whether the returns on financial assets will be as robust. Valuations are elevated in nearly all asset classes, and in some areas, there are clear signs of speculation. It is not an easy environment to invest in, but our investment teams remain rooted in company fundamentals and focused on the long term, and they will continue to apply strong fundamental analysis as they seek out the best investments for your portfolio.

The fund seeks to provide income consistent with limited fluctuation in principal value and liquidity.

The Short Duration Income Fund returned 1.21% from its inception through May 31, 2021, outperforming its benchmark, the Bloomberg Barclays 1–3 Year U.S. Corporate Bond Index. (Returns for the I Class shares will vary, reflecting a different fee structure. Past performance cannot guarantee future results.)

During the period, credit markets continued their broad-based rally, supported by accommodative monetary and fiscal policies as well as improving economic data. A Democratic win in the U.S. Senate runoff elections for Georgia brought greater political clarity, and the distribution of coronavirus vaccines boosted sentiment. In the middle of the period, longer-term U.S. Treasury yields rose sharply on the back of heightened expectations for economic growth and inflation.

Against this backdrop, spread sectors outpaced U.S. Treasuries. Technical conditions for corporate bonds improved as the pace of new issuance became more manageable and inflows from yield-seeking investors remained strong in the low-rate environment. Securitized sectors continued to provide an attractive option amid tight valuations across many spread sectors. Corporate credit spreads moved tighter—at times, to record levels—reflecting the nascent U.S. economic recovery. (Credit spreads are a measure of the additional yield offered by bonds compared with Treasuries.)

Sector allocation was a significant contributor to relative performance. The fund’s allocation to out-of-benchmark sectors—including securitized, emerging markets, and high yield corporates—all contributed. Security selection within investment-grade corporate bonds also helped relative performance. Pandemic-impacted travel and auto industry credits performed well amid economic reopenings. (Please refer to the portfolio of investments for a complete list of holdings and the amount each represents in the portfolio.)

Interest rate management was a modest detractor from performance. We were positioned for a steepening yield curve, but U.S. Treasury yields in the intermediate- and longer-term portions of the curve declined in the latter half of the period after rising over the first few months of 2021.

While we are primarily a cash bond manager, we occasionally employ the limited use of derivatives in our strategy for hedging purposes. Derivatives may include futures and options, as well as credit default and interest rate swaps. Since inception, interest rate derivatives had a positive impact on performance.

Relative to the benchmark, we underweight investment-grade corporate bonds while aiming to add yield by overweighting high yield corporate debt and taking out-of-benchmark positions in securitized sectors and emerging markets. Corporate debt represented just above 40% of net assets as of May 31, 2021. BBB rated bonds, which our research analysts believe are often mispriced and offer attractive relative value, were a significant holding, followed by debt rated BB and below.

Within securitized sectors, we held out-of-benchmark positions in asset-backed securities, commercial mortgage-backed securities, non-agency mortgage-backed securities, and collateralized loan obligations to capture additional yield over U.S. Treasuries and diversify risk positioning. We also initiated out-of-benchmark positions in emerging market investment-grade corporate bonds in response to attractive relative value. Regarding yield curve positioning and interest rate management, we have maintained a shorter duration profile relative to the benchmark and are modestly positioned for a steepening yield curve.

We aim to maintain current risk levels within the portfolio by targeting opportunities with attractive valuations and harvesting gains where spread levels do not provide adequate compensation for the risks associated with owning a credit. Given tight valuations across many spread sectors, we have built up liquidity in the form of out-of-benchmark U.S. Treasury positions, which we plan to deploy during periods of credit spread widening.

Ongoing vaccination efforts are mitigating the fallout from the coronavirus pandemic and providing a pathway to an improved economic environment. Vaccination rates are uneven across the world and not guaranteed to protect against potential future mutations, but the current level of effectiveness appears adequate. We believe progress in managing the coronavirus pandemic will allow the economic recovery to continue for the foreseeable future.

The Federal Reserve is likely to retain an accommodative interest rate policy, but the supplemental measures introduced in 2020 will continue to be scaled back as the Fed transitions from extraordinary to traditional support. This process has the potential to widen the range of outcomes for markets going forward. Moreover, the U.S. employment and inflation outlooks are uncertain, and it remains to be seen whether the pandemic has done lasting structural damage to the economy.

In such a climate, active sector and security selection are likely to play critical roles in generating yield and managing risk, and we are confident that our research platform is well positioned to capitalize on the current market environment.

The views expressed reflect the opinions of T. Rowe Price as of the date of this report and are subject to change based on changes in market, economic, or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.

Bonds are subject to interest rate risk, the decline in bond prices that usually accompanies a rise in interest rates, and credit risk, the chance that any fund holding could have its credit rating downgraded or that a bond issuer will default (fail to make timely payments of interest or principal), potentially reducing the fund’s income level and share price. Issuers of high yield bonds and loans are not as strong financially as those with higher credit ratings, so the issuers and lenders are more vulnerable to financial setbacks and recession than more creditworthy issuers, which may impair their ability to make interest and principal payments. As a result, below investment-grade investments carry greater risks of default and erratic price swings due to real or perceived changes in the credit quality of the issuer or lender. Mortgage-backed securities are subject to prepayment risk, particularly if falling rates lead to heavy refinancing activity, and extension risk, which is an increase in interest rates that causes a fund’s average maturity to lengthen unexpectedly due to a drop in mortgage prepayments. This could increase the fund’s sensitivity to rising interest rates and its potential for price declines.

Note: Bloomberg Index Services Limited. BLOOMBERG^® is a trademark and service mark of Bloomberg Finance L.P. and its affiliates (collectively “Bloomberg”). BARCLAYS^® is a trademark and service mark of Barclays Bank Plc (collectively with its affiliates, “Barclays”), used under license. Bloomberg or Bloomberg’s licensors, including Barclays, own all proprietary rights in the Bloomberg Barclays Indices. Neither Bloomberg nor Barclays approves or endorses this material, or guarantees the accuracy or completeness of any information herein, or makes any warranty, express or implied, as to the results to be obtained therefrom and, to the maximum extent allowed by law, neither shall have any liability or responsibility for injury or damages arising in connection therewith.

As a mutual fund shareholder, you may incur two types of costs: (1) transaction costs, such as redemption fees or sales loads, and (2) ongoing costs, including management fees, distribution and service (12b-1) fees, and other fund expenses. The following example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the most recent six-month period and held for the entire period.

Please note that the fund has two share classes: The original share class (Investor Class) charges no distribution and service (12b-1) fee, and the I Class shares are also available to institutionally oriented clients and impose no 12b-1 or administrative fee payment. Each share class is presented separately in the table.

Actual Expenses
The first line of the following table (Actual) provides information about actual account values and expenses based on the fund’s actual returns. You may use the information on this line, together with your account balance, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number on the first line under the heading “Expenses Paid During Period” to estimate the expenses you paid on your account during this period.

Hypothetical Example for Comparison Purposes
The information on the second line of the table (Hypothetical) is based on hypothetical account values and expenses derived from the fund’s actual expense ratio and an assumed 5% per year rate of return before expenses (not the fund’s actual return). You may compare the ongoing costs of investing in the fund with other funds by contrasting this 5% hypothetical example and the 5% hypothetical examples that appear in the shareholder reports of the other funds. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period.

Note: T. Rowe Price charges an annual account service fee of $20, generally for accounts with less than $10,000. The fee is waived for any investor whose T. Rowe Price mutual fund accounts total $50,000 or more; accounts electing to receive electronic delivery of account statements, transaction confirmations, prospectuses, and shareholder reports; or accounts of an investor who is a T. Rowe Price Personal Services or Enhanced Personal Services client (enrollment in these programs generally requires T. Rowe Price assets of at least $250,000). This fee is not included in the accompanying table. If you are subject to the fee, keep it in mind when you are estimating the ongoing expenses of investing in the fund and when comparing the expenses of this fund with other funds.

You should also be aware that the expenses shown in the table highlight only your ongoing costs and do not reflect any transaction costs, such as redemption fees or sales loads. Therefore, the second line of the table is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. To the extent a fund charges transaction costs, however, the total cost of owning that fund is higher.

T. Rowe Price Short-Term Bond Fund, Inc. (the corporation) is registered under the Investment Company Act of 1940 (the 1940 Act). The Short Duration Income Fund (the fund) is a diversified, open-end management investment company established by the corporation. The fund incepted on December 8, 2020. The fund seeks to provide income consistent with limited fluctuation in principal value and liquidity. The fund has two classes of shares: the Short Duration Income Fund (Investor Class) and the Short Duration Income Fund–I Class (I Class). I Class shares require a $1 million initial investment minimum, although the minimum generally is waived for retirement plans, financial intermediaries, and certain other accounts. Each class has exclusive voting rights on matters related solely to that class; separate voting rights on matters that relate to both classes; and, in all other respects, the same rights and obligations as the other class.

Basis of Preparation The fund is an investment company and follows accounting and reporting guidance in the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 (ASC 946). The accompanying financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (GAAP), including, but not limited to, ASC 946. GAAP requires the use of estimates made by management. Management believes that estimates and valuations are appropriate; however, actual results may differ from those estimates, and the valuations reflected in the accompanying financial statements may differ from the value ultimately realized upon sale or maturity.

Investment Transactions, Investment Income, and Distributions Investment transactions are accounted for on the trade date basis. Income and expenses are recorded on the accrual basis. Realized gains and losses are reported on the identified cost basis. Premiums and discounts on debt securities are amortized for financial reporting purposes. Paydown gains and losses are recorded as an adjustment to interest income. Inflation adjustments to the principal amount of inflation-indexed bonds are reflected as interest income. Income tax-related interest and penalties, if incurred, are recorded as income tax expense. Dividends received from mutual fund investments are reflected as dividend income; capital gain distributions are reflected as realized gain/loss. Dividend income and capital gain distributions are recorded on the ex-dividend date. Non-cash dividends, if any, are recorded at the fair market value of the asset received. Distributions to shareholders are recorded on the ex-dividend date. Income distributions are declared by each class daily and paid monthly. A capital gain distribution may also be declared and paid by the fund annually.

Class Accounting Shareholder servicing, prospectus, and shareholder report expenses incurred by each class are charged directly to the class to which they relate. Expenses common to both classes and investment income are allocated to the classes based upon the relative daily net assets of each class’s settled shares; realized and unrealized gains and losses are allocated based upon the relative daily net assets of each class’s outstanding shares.

Capital Transactions Each investor’s interest in the net assets of the fund is represented by fund shares. The fund’s net asset value (NAV) per share is computed at the close of the New York Stock Exchange (NYSE), normally 4 p.m. ET, each day the NYSE is open for business. However, the NAV per share may be calculated at a time other than the normal close of the NYSE if trading on the NYSE is restricted, if the NYSE closes earlier, or as may be permitted by the SEC. Purchases and redemptions of fund shares are transacted at the next-computed NAV per share, after receipt of the transaction order by T. Rowe Price Associates, Inc., or its agents.

New Accounting Guidance In March 2020, the FASB issued Accounting Standards Update (ASU), ASU 2020–04, Reference Rate Reform (Topic 848) – Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional, temporary relief with respect to the financial reporting of contracts subject to certain types of modifications due to the planned discontinuation of the London Interbank Offered Rate (LIBOR) and other interbank-offered based reference rates as of the end of 2021. The guidance is effective for certain reference rate-related contract modifications that occur during the period March 12, 2020 through December 31, 2022. Management expects that the adoption of the guidance will not have a material impact on the fund's financial statements.

Indemnification In the normal course of business, the fund may provide indemnification in connection with its officers and directors, service providers, and/or private company investments. The fund’s maximum exposure under these arrangements is unknown; however, the risk of material loss is currently considered to be remote.

Fair Value The fund’s financial instruments are valued at the close of the NYSE and are reported at fair value, which GAAP defines as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The T. Rowe Price Valuation Committee (the Valuation Committee) is an internal committee that has been delegated certain responsibilities by the fund’s Board of Directors (the Board) to ensure that financial instruments are appropriately priced at fair value in accordance with GAAP and the 1940 Act. Subject to oversight by the Board, the Valuation Committee develops and oversees pricing-related policies and procedures and approves all fair value determinations. Specifically, the Valuation Committee establishes policies and procedures used in valuing financial instruments, including those which cannot be valued in accordance with normal procedures or using pricing vendors; determines pricing techniques, sources, and persons eligible to effect fair value pricing actions; evaluates the services and performance of the pricing vendors; oversees the pricing process to ensure policies and procedures are being followed; and provides guidance on internal controls and valuation-related matters. The Valuation Committee provides periodic reporting to the Board on valuation matters.

Various valuation techniques and inputs are used to determine the fair value of financial instruments. GAAP establishes the following fair value hierarchy that categorizes the inputs used to measure fair value:

Level 1 – quoted prices (unadjusted) in active markets for identical financial instruments that the fund can access at the reporting date

Level 2 – inputs other than Level 1 quoted prices that are observable, either directly or indirectly (including, but not limited to, quoted prices for similar financial instruments in active markets, quoted prices for identical or similar financial instruments in inactive markets, interest rates and yield curves, implied volatilities, and credit spreads)

Level 3 – unobservable inputs (including the fund's own assumptions in determining fair value)

Observable inputs are developed using market data, such as publicly available information about actual events or transactions, and reflect the assumptions that market participants would use to price the financial instrument. Unobservable inputs are those for which market data are not available and are developed using the best information available about the assumptions that market participants would use to price the financial instrument. GAAP requires valuation techniques to maximize the use of relevant observable inputs and minimize the use of unobservable inputs. When multiple inputs are used to derive fair value, the financial instrument is assigned to the level within the fair value hierarchy based on the lowest-level input that is significant to the fair value of the financial instrument. Input levels are not necessarily an indication of the risk or liquidity associated with financial instruments at that level but rather the degree of judgment used in determining those values.

Valuation Techniques Debt securities generally are traded in the over-the-counter (OTC) market and are valued at prices furnished by independent pricing services or by broker dealers who make markets in such securities. When valuing securities, the independent pricing services consider the yield or price of bonds of comparable quality, coupon, maturity, and type, as well as prices quoted by dealers who make markets in such securities.

Investments in mutual funds are valued at the mutual fund’s closing NAV per share on the day of valuation. Futures contracts are valued at closing settlement prices. Assets and liabilities other than financial instruments, including short-term receivables and payables, are carried at cost, or estimated realizable value, if less, which approximates fair value.

Investments for which market quotations or market-based valuations are not readily available or deemed unreliable are valued at fair value as determined in good faith by the Valuation Committee, in accordance with fair valuation policies and procedures. The objective of any fair value pricing determination is to arrive at a price that could reasonably be expected from a current sale. Financial instruments fair valued by the Valuation Committee are primarily private placements, restricted securities, warrants, rights, and other securities that are not publicly traded. Factors used in determining fair value vary by type of investment and may include market or investment specific considerations. The Valuation Committee typically will afford greatest weight to actual prices in arm’s length transactions, to the extent they represent orderly transactions between market participants, transaction information can be reliably obtained, and prices are deemed representative of fair value. However, the Valuation Committee may also consider other valuation methods such as market-based valuation multiples; a discount or premium from market value of a similar, freely traded security of the same issuer; discounted cash flows; yield to maturity; or some combination. Fair value determinations are reviewed on a regular basis and updated as information becomes available, including actual purchase and sale transactions of the investment. Because any fair value determination involves a significant amount of judgment, there is a degree of subjectivity inherent in such pricing decisions, and fair value prices determined by the Valuation Committee could differ from those of other market participants.

Valuation Inputs The following table summarizes the fund’s financial instruments, based on the inputs used to determine their fair values on May 31, 2021 (for further detail by category, please refer to the accompanying Portfolio of Investments):

During the period ended May 31, 2021, the fund invested in derivative instruments. As defined by GAAP, a derivative is a financial instrument whose value is derived from an underlying security price, foreign exchange rate, interest rate, index of prices or rates, or other variable; it requires little or no initial investment and permits or requires net settlement. The fund invests in derivatives only if the expected risks and rewards are consistent with its investment objectives, policies, and overall risk profile, as described in its prospectus and Statement of Additional Information. The fund may use derivatives for a variety of purposes, such as seeking to hedge against declines in principal value, increase yield, invest in an asset with greater efficiency and at a lower cost than is possible through direct investment, to enhance return, or to adjust portfolio duration and credit exposure. The risks associated with the use of derivatives are different from, and potentially much greater than, the risks associated with investing directly in the instruments on which the derivatives are based. The fund at all times maintains sufficient cash reserves, liquid assets, or other SEC-permitted asset types to cover its settlement obligations under open derivative contracts.

The fund values its derivatives at fair value and recognizes changes in fair value currently in its results of operations. Accordingly, the fund does not follow hedge accounting, even for derivatives employed as economic hedges. Generally, the fund accounts for its derivatives on a gross basis. It does not offset the fair value of derivative liabilities against the fair value of derivative assets on its financial statements, nor does it offset the fair value of derivative instruments against the right to reclaim or obligation to return collateral. The following table summarizes the fair value of the fund’s derivative instruments held as of May 31, 2021, and the related location on the accompanying Statement of Assets and Liabilities, presented by primary underlying risk exposure:

Additionally, the amount of gains and losses on derivative instruments recognized in fund earnings during the period ended May 31, 2021, and the related location on the accompanying Statement of Operations is summarized in the following table by primary underlying risk exposure:

Counterparty Risk and Collateral The fund invests in exchange-traded or centrally cleared derivative contracts, such as futures, exchange-traded options, and centrally cleared swaps. Counterparty risk on such derivatives is minimal because the clearinghouse provides protection against counterparty defaults. For futures and centrally cleared swaps, the fund is required to deposit collateral in an amount specified by the clearinghouse and the clearing firm (margin requirement), and the margin requirement must be maintained over the life of the contract. Each clearinghouse and clearing firm, in its sole discretion, may adjust the margin requirements applicable to the fund.

Collateral may be in the form of cash or debt securities issued by the U.S. government or related agencies. Cash posted by the fund is reflected as cash deposits in the accompanying financial statements and generally is restricted from withdrawal by the fund; securities posted by the fund are so noted in the accompanying Portfolio of Investments; both remain in the fund’s assets. While typically not sold in the same manner as equity or fixed income securities, exchange-traded or centrally cleared derivatives may be closed out only on the exchange or clearinghouse where the contracts were traded. This ability is subject to the liquidity of underlying positions. As of May 31, 2021, securities valued at $51,000 had been posted by the fund for exchange-traded and/ or centrally cleared derivatives.

Forward Currency Exchange Contracts The fund is subject to foreign currency exchange rate risk in the normal course of pursuing its investment objectives. It uses forward currency exchange contracts (forwards) primarily to protect its non-U.S. dollar-denominated securities from adverse currency movements. A forward involves an obligation to purchase or sell a fixed amount of a specific currency on a future date at a price set at the time of the contract. Although certain forwards may be settled by exchanging only the net gain or loss on the contract, most forwards are settled with the exchange of the underlying currencies in accordance with the specified terms. Forwards are valued at the unrealized gain or loss on the contract, which reflects the net amount the fund either is entitled to receive or obligated to deliver, as measured by the difference between the forward exchange rates at the date of entry into the contract and the forward rates at the reporting date. Appreciated forwards are reflected as assets and depreciated forwards are reflected as liabilities on the accompanying Statement of Assets and Liabilities. Risks related to the use of forwards include the possible failure of counterparties to meet the terms of the agreements; that anticipated currency movements will not occur, thereby reducing the fund’s total return; and the potential for losses in excess of the fund’s initial investment. During the period ended May 31, 2021, the volume of the fund’s activity in forwards, based on underlying notional amounts, was generally less than 1% of net assets.

Futures Contracts The fund is subject to interest rate risk in the normal course of pursuing its investment objectives and uses futures contracts to help manage such risk. The fund may enter into futures contracts to manage exposure to interest rate and yield curve movements, security prices, foreign currencies, credit quality, and mortgage prepayments; as an efficient means of adjusting exposure to all or part of a target market; to enhance income; as a cash management tool; or to adjust portfolio duration and credit exposure. A futures contract provides for the future sale by one party and purchase by another of a specified amount of a specific underlying financial instrument at an agreed-upon price, date, time, and place. The fund currently invests only in exchange-traded futures, which generally are standardized as to maturity date, underlying financial instrument, and other contract terms. Payments are made or received by the fund each day to settle daily fluctuations in the value of the contract (variation margin), which reflect changes in the value of the underlying financial instrument. Variation margin is recorded as unrealized gain or loss until the contract is closed. The value of a futures contract included in net assets is the amount of unsettled variation margin; net variation margin receivable is reflected as an asset and net variation margin payable is reflected as a liability on the accompanying Statement of Assets and Liabilities. Risks related to the use of futures contracts include possible illiquidity of the futures markets, contract prices that can be highly volatile and imperfectly correlated to movements in hedged security values and/or interest rates, and potential losses in excess of the fund’s initial investment. During the period ended May 31, 2021, the volume of the fund’s activity in futures, based on underlying notional amounts, was generally between 15% and 25% of net assets.

Options The fund is subject to credit risk in the normal course of pursuing its investment objectives and uses options to help manage such risk. The fund may use options to manage exposure to security prices, interest rates, foreign currencies, and credit quality; as an efficient means of adjusting exposure to all or a part of a target market; to enhance income; as a cash management tool; or to adjust credit exposure. Options are included in net assets at fair value, options purchased are included in Investments in Securities, and Options written are separately reflected as a liability on the accompanying Statement of Assets and Liabilities. Premiums on unexercised, expired options are recorded as realized gains or losses; premiums on exercised options are recorded as an adjustment to the proceeds from the sale or cost of the purchase. The difference between the premium and the amount received or paid in a closing transaction is also treated as realized gain or loss. In return for a premium paid, options on swaps give the holder the right, but not the obligation, to enter a specified swap contract on predefined terms. The exercise price of an option on a credit default swap is stated in terms of a specified spread that represents the cost of credit protection on the reference asset, including both the upfront premium to open the position and future periodic payments. The exercise price of an interest rate swap is stated in terms of a fixed interest rate; generally, there is no upfront payment to open the position. Risks related to the use of options include possible illiquidity of the options markets; trading restrictions imposed by an exchange or counterparty; movements in the underlying asset values and credit ratings; and, for options written, potential losses in excess of the fund’s initial investment. During the period ended May 31, 2021, the volume of the fund’s activity in options, based on underlying notional amounts, was generally between 0% and 8% of net assets.

Swaps The fund is subject to credit risk in the normal course of pursuing its investment objectives and uses swap contracts to help manage such risk. The fund may use swaps in an effort to manage both long and short exposure to changes in interest rates, inflation rates, and credit quality; to adjust overall exposure to certain markets; to enhance total return or protect the value of portfolio securities; to serve as a cash management tool; or to adjust portfolio duration and credit exposure. Swap agreements can be settled either directly with the counterparty (bilateral swap) or through a central clearinghouse (centrally cleared swap). Fluctuations in the fair value of a contract are reflected in unrealized gain or loss and are reclassified to realized gain or loss upon contract termination or cash settlement. Net periodic receipts or payments required by a contract increase or decrease, respectively, the value of the contract until the contractual payment date, at which time such amounts are reclassified from unrealized to realized gain or loss. For bilateral swaps, cash payments are made or received by the fund on a periodic basis in accordance with contract terms; unrealized gain on contracts and premiums paid are reflected as assets and unrealized loss on contracts and premiums received are reflected as liabilities on the accompanying Statement of Assets and Liabilities. For bilateral swaps, premiums paid or received are amortized over the life of the swap and are recognized as realized gain or loss in the Statement of Operations. For centrally cleared swaps, payments are made or received by the fund each day to settle the daily fluctuation in the value of the contract (variation margin). Accordingly, the value of a centrally cleared swap included in net assets is the unsettled variation margin; net variation margin receivable is reflected as an asset and net variation margin payable is reflected as a liability on the accompanying Statement of Assets and Liabilities.

Credit default swaps are agreements where one party (the protection buyer) agrees to make periodic payments to another party (the protection seller) in exchange for protection against specified credit events, such as certain defaults and bankruptcies related to an underlying credit instrument, or issuer or index of such instruments. Upon occurrence of a specified credit event, the protection seller is required to pay the buyer the difference between the notional amount of the swap and the value of the underlying credit, either in the form of a net cash settlement or by paying the gross notional amount and accepting delivery of the relevant underlying credit. For credit default swaps where the underlying credit is an index, a specified credit event may affect all or individual underlying securities included in the index and will be settled based upon the relative weighting of the affected underlying security(ies) within the index. Risks related to the use of credit default swaps include the possible inability of the fund to accurately assess the current and future creditworthiness of underlying issuers, the possible failure of a counterparty to perform in accordance with the terms of the swap agreements, potential government regulation that could adversely affect the fund’s swap investments, and potential losses in excess of the fund’s initial investment.

During the period ended May 31, 2021, the volume of the fund’s activity in swaps, based on underlying notional amounts, was generally less than 1% of net assets.

Consistent with its investment objective, the fund engages in the following practices to manage exposure to certain risks and/or to enhance performance. The investment objective, policies, program, and risk factors of the fund are described more fully in the fund’s prospectus and Statement of Additional Information.

Emerging and Frontier Markets The fund invests, either directly or through investments in other T. Rowe Price funds, in securities of companies located in, issued by governments of, or denominated in or linked to the currencies of emerging and frontier market countries. Emerging markets, and to a greater extent frontier markets, generally have economic structures that are less diverse and mature, and political systems that are less stable, than developed countries. These markets may be subject to greater political, economic, and social uncertainty and differing regulatory environments that may potentially impact the fund’s ability to buy or sell certain securities or repatriate proceeds to U.S. dollars. Such securities are often subject to greater price volatility, less liquidity, and higher rates of inflation than U.S. securities. Investing in frontier markets is significantly riskier than investing in other countries, including emerging markets.

Restricted Securities The fund invests in securities that are subject to legal or contractual restrictions on resale. Prompt sale of such securities at an acceptable price may be difficult and may involve substantial delays and additional costs.

Collateralized Loan Obligations The fund invests in collateralized loan obligations (CLOs) which are entities backed by a diversified pool of syndicated bank loans. The cash flows of the CLO can be split into multiple segments, called “tranches” or “classes”, which will vary in risk profile and yield. The riskiest segments, which are the subordinate or “equity” tranches, bear the greatest risk of loss from defaults in the underlying assets of the CLO and serve to protect the other, more senior, tranches. Senior tranches will typically have higher credit ratings and lower yields than the securities underlying the CLO. Despite the protection from the more junior tranches, senior tranches can experience substantial losses.

Bank Loans The fund invests in bank loans, which represent an interest in amounts owed by a borrower to a syndicate of lenders. Bank loans are generally noninvestment grade and often involve borrowers whose financial condition is highly leveraged. Bank loans may be in the form of either assignments or participations. A loan assignment transfers all legal, beneficial, and economic rights to the buyer, and transfer typically requires consent of both the borrower and agent. In contrast, a loan participation generally entitles the buyer to receive the cash flows from principal, interest, and any fee payments on a portion of a loan; however, the seller continues to hold legal title to that portion of the loan. As a result, the buyer of a loan participation generally has no direct recourse against the borrower and is exposed to credit risk of both the borrower and seller of the participation. Bank loans often have extended settlement periods, generally may be repaid at any time at the option of the borrower, and may require additional principal to be funded at the borrowers’ discretion at a later date (e.g. unfunded commitments and revolving debt instruments). Until settlement, the fund maintains liquid assets sufficient to settle its unfunded loan commitments. The fund reflects both the funded portion of a bank loan as well as its unfunded commitment in the Portfolio of Investments. However, if a credit agreement provides no initial funding of a tranche and funding of the full commitment at a future date(s) is at the borrower’s discretion and considered uncertain, a loan is reflected in the Portfolio of Investments only if, and only to the extent that, the fund has actually settled a funding commitment.

Mortgage-Backed Securities The fund invests in mortgage-backed securities (MBS or pass-through certificates) that represent an interest in a pool of specific underlying mortgage loans and entitle the fund to the periodic payments of principal and interest from those mortgages. MBS may be issued by government agencies or corporations, or private issuers. Most MBS issued by government agencies are guaranteed; however, the degree of protection differs based on the issuer. MBS are sensitive to changes in economic conditions that affect the rate of prepayments and defaults on the underlying mortgages; accordingly, the value, income, and related cash flows from MBS may be more volatile than other debt instruments.

LIBOR The fund may invest in instruments that are tied to reference rates, including LIBOR. On March 5, 2021, the ICE Benchmark Administration Limited, the administrator of LIBOR, announced its intention to cease publishing a majority of the USD LIBOR settings immediately after publication on June 30, 2023, with the remaining USD LIBOR settings to end immediately after publication on December 31, 2021. There remains uncertainty regarding the future utilization of LIBOR and the nature of any replacement rate. Any potential effects of the transition away from LIBOR on the fund, or on certain instruments in which the fund invests, are not known. The transition process may result in, among other things, an increase in volatility or illiquidity of markets for instruments that currently rely on LIBOR, a reduction in the value of certain instruments held by the fund, or a reduction in the effectiveness of related fund transactions such as hedges. Any such effects could have an adverse impact on the fund’s performance.

Other Purchases and sales of portfolio securities other than short-term and U.S. government securities aggregated $37,523,000 and $3,614,000, respectively, for the period ended May 31, 2021. Purchases and sales of U.S. government securities aggregated $11,390,000 and $3,067,000, respectively, for the period ended May 31, 2021.

Generally, no provision for federal income taxes is required since the fund intends to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code and distribute to shareholders all of its taxable income and gains. Distributions determined in accordance with federal income tax regulations may differ in amount or character from net investment income and realized gains for financial reporting purposes.

The fund files U.S. federal, state, and local tax returns as required. The fund’s tax returns are subject to examination by the relevant tax authorities until expiration of the applicable statute of limitations, which is generally three years after the filing of the tax return but which can be extended to six years in certain circumstances.

Financial reporting records are adjusted for permanent book/tax differences to reflect tax character but are not adjusted for temporary differences. The permanent book/tax adjustments have no impact on results of operations or net assets and relate primarily to a tax practice that treats a portion of the proceeds from each redemption of capital shares as a distribution of taxable net investment income or realized capital gain, nondeductible tax expenses and the recharacterization of distributions. For the period ended May 31, 2021, the following reclassification was recorded:

Distributions during the period ended May 31, 2021, totaled $206,000 and were characterized as ordinary income for tax purposes. At May 31, 2021, the tax-basis cost of investments, including derivatives, and components of net assets were as follows:

The fund is managed by T. Rowe Price Associates, Inc. (Price Associates), a wholly owned subsidiary of T. Rowe Price Group, Inc. (Price Group). The investment management agreement between the fund and Price Associates provides for an annual investment management fee, which is computed daily and paid monthly. The fee is determined by applying a group fee rate to the fund’s average daily net assets. The group fee rate is calculated based on the combined net assets of certain mutual funds sponsored by Price Associates (the group) applied to a graduated fee schedule, with rates ranging from 0.48% for the first $1 billion of assets to 0.260% for assets in excess of $845 billion. At May 31, 2021, the effective annual group fee rate was 0.28%.

The Investor Class is subject to a contractual expense limitation through the expense limitation date indicated in the table below. During the limitation period, Price Associates is required to waive its management fee or pay any expenses (excluding interest; expenses related to borrowings, taxes, and brokerage; and other non-recurring expenses permitted by the investment management agreement) that would otherwise cause the class’s ratio of annualized total expenses to average net assets (net expense ratio) to exceed its expense limitation. The class is required to repay Price Associates for expenses previously waived/paid to the extent the class’s net assets grow or expenses decline sufficiently to allow repayment without causing the class’s net expense ratio (after the repayment is taken into account) to exceed the lesser of: (1) the expense limitation in place at the time such amounts were waived; or (2) the class’s current expense limitation. However, no repayment will be made more than three years after the date of a payment or waiver.

The I Class is also subject to an operating expense limitation (I Class Limit) pursuant to which Price Associates is contractually required to pay all operating expenses of the I Class, excluding management fees; interest; expenses related to borrowings, taxes, and brokerage; and other non-recurring expenses permitted by the investment management agreement, to the extent such operating expenses, on an annualized basis, exceed the I Class Limit. This agreement will continue through the expense limitation date indicated in the table below, and may be renewed, revised, or revoked only with approval of the fund’s Board. The I Class is required to repay Price Associates for expenses previously paid to the extent the class’s net assets grow or expenses decline sufficiently to allow repayment without causing the class’s operating expenses (after the repayment is taken into account) to exceed the lesser of: (1) the I Class Limit in place at the time such amounts were paid; or (2) the current I Class Limit. However, no repayment will be made more than three years after the date of a payment or waiver.

Pursuant to these agreements, expenses were waived/paid by and/or repaid to Price Associates during the period ended May 31, 2021 as indicated in the table below and remain subject to repayment by the fund. Including these amounts, expenses waived/ paid by Price Associates in the amount of $128,000 remain subject to repayment by the fund at May 31, 2021. Any repayment of expenses previously waived/paid by Price Associates during the period would be included in the net investment income and expense ratios presented on the accompanying Financial Highlights.

In addition, the fund has entered into service agreements with Price Associates and a wholly owned subsidiary of Price Associates, each an affiliate of the fund (collectively, Price). Price Associates provides certain accounting and administrative services to the fund. T. Rowe Price Services, Inc. provides shareholder and administrative services in its capacity as the fund’s transfer and dividend-disbursing agent. For the period ended May 31, 2021, expenses incurred pursuant to these service agreements were $32,000 for Price Associates and $2,000 for T. Rowe Price Services, Inc. All amounts due to and due from Price, exclusive of investment management fees payable, are presented net on the accompanying Statement of Assets and Liabilities.

The fund may invest its cash reserves in certain open-end management investment companies managed by Price Associates and considered affiliates of the fund: the T. Rowe Price Government Reserve Fund or the T. Rowe Price Treasury Reserve Fund, organized as money market funds, or the T. Rowe Price Short-Term Fund, a short-term bond fund (collectively, the Price Reserve Funds). The Price Reserve Funds are offered as short-term investment options to mutual funds, trusts, and other accounts managed by Price Associates or its affiliates and are not available for direct purchase by members of the public. Cash collateral from securities lending is invested in the T. Rowe Price Short-Term Fund. The Price Reserve Funds pay no investment management fees.

As of May 31, 2021, T. Rowe Price Group, Inc., or its wholly owned subsidiaries, owned 1,975,000 shares of the Investor Class, representing 46% of the Investor Class's net assets and 25,000 shares of the I Class, representing 100% of the I Class’s net assets.

The fund may participate in securities purchase and sale transactions with other funds or accounts advised by Price Associates (cross trades), in accordance with procedures adopted by the fund’s Board and Securities and Exchange Commission rules, which require, among other things, that such purchase and sale cross trades be effected at the independent current market price of the security. During the period ended May 31, 2021, the fund had no purchases or sales cross trades with other funds or accounts advised by Price Associates.

Unpredictable events such as environmental or natural disasters, war, terrorism, pandemics, outbreaks of infectious diseases, and similar public health threats may significantly affect the economy and the markets and issuers in which a fund invests. Certain events may cause instability across global markets, including reduced liquidity and disruptions in trading markets, while some events may affect certain geographic regions, countries, sectors, and industries more significantly than others, and exacerbate other pre-existing political, social, and economic risks. During 2020, a novel strain of coronavirus (COVID-19) resulted in disruptions to global business activity and caused significant volatility and declines in global financial markets.

These types of events, such as the global pandemic caused by COVID-19, may also cause widespread fear and uncertainty, and result in, among other things: enhanced health screenings, quarantines, cancellations, and travel restrictions, including border closings; disruptions to business operations and supply chains and customer activity; exchange trading suspensions and closures, and overall reduced liquidity of securities, derivatives, and commodities trading markets; reductions in consumer demand and economic output; and significant challenges in healthcare service preparation and delivery. The fund could be negatively impacted if the value of a portfolio holding were harmed by such political or economic conditions or events. In addition, the operations of the fund, its investment advisers, and the fund’s service providers may be significantly impacted, or even temporarily halted, as a result of any impairment to their information technology and other operation systems, extensive employee illnesses or unavailability, government quarantine measures, and restrictions on travel or meetings and other factors related to public emergencies.

Governmental and quasi-governmental authorities and regulators have in the past responded to major economic disruptions with a variety of significant fiscal and monetary policy changes, including but not limited to, direct capital infusions into companies, new monetary programs, and dramatically lower interest rates. An unexpected or quick reversal of these policies, or the ineffectiveness of these policies, could negatively impact overall investor sentiment and further increase volatility in securities markets.

To the Board of Directors of T. Rowe Price Short-Term Bond Fund, Inc. and
Shareholders of T. Rowe Price Short Duration Income Fund

Opinion on the Financial Statements
We have audited the accompanying statement of assets and liabilities, including the portfolio of investments, of T. Rowe Price Short Duration Income Fund (one of the funds constituting T. Rowe Price Short-Term Bond Fund, Inc., referred to hereafter as the “Fund”) as of May 31, 2021, and the related statements of operations, and changes in net assets, including the related notes, and the financial highlights for the period December 8, 2020 (Inception) through May 31, 2021 (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Fund as of May 31, 2021, and the results of its operations, changes in its net assets, and the financial highlights for the period December 8, 2020 (Inception) through May 31, 2021 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion
These financial statements are the responsibility of the Fund’s management. Our responsibility is to express an opinion on the Fund’s financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Fund in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit of these financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our procedures included confirmation of securities owned as of May 31, 2021 by correspondence with the custodians, transfer agent and brokers; when replies were not received from brokers, we performed other auditing procedures. We believe that our audit provides a reasonable basis for our opinion.

We have served as the auditor of one or more investment companies in the T. Rowe Price group of investment companies since 1973.

We are providing this information as required by the Internal Revenue Code. The amounts shown may differ from those elsewhere in this report because of differences between tax and financial reporting requirements.

The fund’s distributions to shareholders included $5,000 from short-term capital gains.

For nonresident alien shareholders, $174,000 of income dividends are interest-related dividends.

A description of the policies and procedures used by T. Rowe Price funds to determine how to vote proxies relating to portfolio securities is available in each fund’s Statement of Additional Information. You may request this document by calling 1-800-225-5132 or by accessing the SEC’s website, sec.gov.

The description of our proxy voting policies and procedures is also available on our corporate website. To access it, please visit the following Web page:

Scroll down to the section near the bottom of the page that says, “Proxy Voting Policies.” Click on the Proxy Voting Policies link in the shaded box.

Each fund’s most recent annual proxy voting record is available on our website and through the SEC’s website. To access it through T. Rowe Price, visit the website location shown above, and scroll down to the section near the bottom of the page that says, “Proxy Voting Records.” Click on the Proxy Voting Records link in the shaded box.

The fund files a complete schedule of portfolio holdings with the Securities and Exchange Commission (SEC) for the first and third quarters of each fiscal year as an exhibit to its reports on Form N-PORT. The fund’s reports on Form N-PORT are available electronically on the SEC’s website (sec.gov). In addition, most T. Rowe Price funds disclose their first and third fiscal quarter-end holdings on troweprice.com.

Each year, the fund’s Board of Directors (Board) considers the continuation of the investment management agreement (Advisory Contract) between the fund and its investment advisor, T. Rowe Price Associates, Inc. (Advisor). In that regard, at a meeting held on March 8–9, 2021 (Meeting), the Board, including all of the fund’s independent directors, approved the continuation of the fund’s Advisory Contract. At the Meeting, the Board considered the factors and reached the conclusions described below relating to the selection of the Advisor and the approval of the Advisory Contract. The independent directors were assisted in their evaluation of the Advisory Contract by independent legal counsel from whom they received separate legal advice and with whom they met separately.

In providing information to the Board, the Advisor was guided by a detailed set of requests for information submitted by independent legal counsel on behalf of the independent directors. In considering and approving the Advisory Contract, the Board considered the information it believed was relevant, including, but not limited to, the information discussed below. The Board considered not only the specific information presented in connection with the Meeting but also the knowledge gained over time through interaction with the Advisor about various topics. The Board meets regularly and, at each of its meetings, covers an extensive agenda of topics and materials and considers factors that are relevant to its annual consideration of the renewal of the T. Rowe Price funds’ advisory contracts, including performance and the services and support provided to the funds and their shareholders.

Services Provided by the Advisor
The Board considered the nature, quality, and extent of the services provided to the fund by the Advisor. These services included, but were not limited to, directing the fund’s investments in accordance with its investment program and the overall management of the fund’s portfolio, as well as a variety of related activities such as financial, investment operations, and administrative services; compliance; maintaining the fund’s records and registrations; and shareholder communications. The Board also reviewed the background and experience of the Advisor’s senior management team and investment personnel involved in the management of the fund, as well as the Advisor’s compliance record. The Board concluded that it was satisfied with the nature, quality, and extent of the services provided by the Advisor.

Investment Performance of the Fund
The Board did not review the fund’s performance since the fund had recently begun operations in December 2020.

Costs, Benefits, Profits, and Economies of Scale
The Board reviewed detailed information regarding the revenues received by the Advisor under the Advisory Contract and other direct and indirect benefits that the Advisor (and its affiliates) may have realized from its relationship with the fund. In considering soft-dollar arrangements pursuant to which research may be received from broker-dealers that execute the fund’s portfolio transactions, the Board noted that the Advisor bears the cost of research services for all client accounts that it advises, including the T. Rowe Price funds. The Board received information on the estimated costs incurred and profits realized by the Advisor from managing the T. Rowe Price funds. While the Board did not review information regarding profits realized from managing the fund in particular because the fund had either not achieved sufficient portfolio asset size or not recognized sufficient revenues to produce meaningful profit margin percentages, the Board concluded that the Advisor’s profits were reasonable in light of the services provided to the T. Rowe Price funds.

The Board also considered whether the fund benefits under the fee levels set forth in the Advisory Contract from any economies of scale realized by the Advisor. Under the Advisory Contract, the fund pays a fee to the Advisor for investment management services composed of two components—a group fee rate based on the combined average net assets of most of the T. Rowe Price funds (including the fund) that declines at certain asset levels and an individual fund fee rate based on the fund’s average daily net assets—and the fund pays its own expenses of operations (subject to contractual expense limitations). The Board concluded that the advisory fee structure for the fund continued to provide for a reasonable sharing of benefits from any economies of scale with the fund’s investors.

Fees and Expenses
The Board was provided with information regarding industry trends in management fees and expenses. Among other things, the Board reviewed data for peer groups that were compiled by Broadridge, which compared: (i) contractual management fees, total expenses, actual management fees, and nonmanagement expenses of the Investor Class of the fund with a group of competitor funds selected by Broadridge (Expense Group) and (ii) total expenses, actual management fees, and nonmanagement expenses of the Investor Class of the fund with a broader set of funds within the Lipper investment classification (Expense Universe). The Board considered the fund’s contractual management fee rate, actual management fee rate (which reflects the management fees actually received from the fund by the Advisor after any applicable waivers, reductions, or reimbursements), operating expenses, and total expenses (which reflect the net total expense ratio of the fund after any waivers, reductions, or reimbursements) in comparison with the information for the Broadridge peer groups. Broadridge generally constructed the peer groups by seeking the most comparable funds based on similar investment classifications and objectives, expense structure, asset size, and operating components and attributes and ranked funds into quintiles, with the first quintile representing the funds with the lowest relative expenses and the fifth quintile representing the funds with the highest relative expenses. The information provided to the Board indicated that the fund’s contractual management fee ranked in the second quintile (Expense Group), the fund’s actual management fee rate ranked in the first quintile (Expense Group and Expense Universe), and the fund’s total expenses ranked in the first quintile (Expense Group) and first and second quintiles (Expense Universe).

The Board also reviewed the fee schedules for other investment portfolios with similar mandates that are advised or subadvised by the Advisor and its affiliates, including separately managed accounts for institutional and individual investors; subadvised funds; and other sponsored investment portfolios, including collective investment trusts and pooled vehicles organized and offered to investors outside the United States. Management provided the Board with information about the Advisor’s responsibilities and services provided to subadvisory and other institutional account clients, including information about how the requirements and economics of the institutional business are fundamentally different from those of the proprietary mutual fund business. The Board considered information showing that the Advisor’s mutual fund business is generally more complex from a business and compliance perspective than its institutional account business and considered various relevant factors, such as the broader scope of operations and oversight, more extensive shareholder communication infrastructure, greater asset flows, heightened business risks, and differences in applicable laws and regulations associated with the Advisor’s proprietary mutual fund business. In assessing the reasonableness of the fund’s management fee rate, the Board considered the differences in the nature of the services required for the Advisor to manage its mutual fund business versus managing a discrete pool of assets as a subadvisor to another institution’s mutual fund or for an institutional account and that the Advisor generally performs significant additional services and assumes greater risk in managing the fund and other T. Rowe Price funds than it does for institutional account clients, including subadvised funds.

On the basis of the information provided and the factors considered, the Board concluded that the fees paid by the fund under the Advisory Contract are reasonable.

Approval of the Advisory Contract
As noted, the Board approved the continuation of the Advisory Contract. No single factor was considered in isolation or to be determinative to the decision. Rather, the Board concluded, in light of a weighting and balancing of all factors considered, that it was in the best interests of the fund and its shareholders for the Board to approve the continuation of the Advisory Contract (including the fees to be charged for services thereunder).

Your fund is overseen by a Board of Directors (Board) that meets regularly to review a wide variety of matters affecting or potentially affecting the fund, including performance, investment programs, compliance matters, advisory fees and expenses, service providers, and business and regulatory affairs. The Board elects the fund’s officers, who are listed in the final table. At least 75% of the Board’s members are considered to be independent, i.e., not “interested persons” as defined in Section 2(a) (19) of the 1940 Act, of the Boards of T. Rowe Price Associates, Inc. (T. Rowe Price), and its affiliates; “interested” directors and officers are employees of T. Rowe Price. The business address of each director and officer is 100 East Pratt Street, Baltimore, Maryland 21202. The Statement of Additional Information includes additional information about the fund directors and is available without charge by calling a T. Rowe Price representative at 1-800-638-5660.

The registrant has adopted a code of ethics, as defined in Item 2 of Form N-CSR, applicable to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. A copy of this code of ethics is filed as an exhibit to this Form N-CSR. No substantive amendments were approved or waivers were granted to this code of ethics during the period covered by this report.

The registrant’s Board of Directors/Trustees has determined that Mr. Bruce W. Duncan qualifies as an audit committee financial expert, as defined in Item 3 of Form N-CSR. Mr. Duncan is considered independent for purposes of Item 3 of Form N-CSR.

(a) – (d) Aggregate fees billed for the last two fiscal years for professional services rendered to, or on behalf of, the registrant by the registrant’s principal accountant were as follows:

Audit fees include amounts related to the audit of the registrant’s annual financial statements and services normally provided by the accountant in connection with statutory and regulatory filings. Audit-related fees include amounts reasonably related to the performance of the audit of the registrant’s financial statements and specifically include the issuance of a report on internal controls and, if applicable, agreed-upon procedures related to fund acquisitions. Tax fees include amounts related to services for tax compliance, tax planning, and tax advice. The nature of these services specifically includes the review of distribution calculations and the preparation of Federal, state, and excise tax returns. All other fees include the registrant’s pro-rata share of amounts for agreed-upon procedures in conjunction with service contract approvals by the registrant’s Board of Directors/Trustees.

(e)(1) The registrant’s audit committee has adopted a policy whereby audit and non-audit services performed by the registrant’s principal accountant for the registrant, its investment adviser, and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant require pre-approval in advance at regularly scheduled audit committee meetings. If such a service is required between regularly scheduled audit committee meetings, pre-approval may be authorized by one audit committee member with ratification at the next scheduled audit committee meeting. Waiver of pre-approval for audit or non-audit services requiring fees of a de minimis amount is not permitted.

(2) No services included in (b) – (d) above were approved pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

(f) Less than 50 percent of the hours expended on the principal accountant’s engagement to audit the registrant’s financial statements for the most recent fiscal year were attributed to work performed by persons other than the principal accountant’s full-time, permanent employees.

(g) The aggregate fees billed for the most recent fiscal year and the preceding fiscal year by the registrant’s principal accountant for non-audit services rendered to the registrant, its investment adviser, and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant were $3,481,000 and $3,671,000, respectively.

(h) All non-audit services rendered in (g) above were pre-approved by the registrant’s audit committee. Accordingly, these services were considered by the registrant’s audit committee in maintaining the principal accountant’s independence.

(a) Not applicable. The complete schedule of investments is included in Item 1 of this Form N-CSR.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

There has been no change to the procedures by which shareholders may recommend nominees to the registrant’s board of directors.

(a) The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized, and reported timely.

(b) The registrant’s principal executive officer and principal financial officer are aware of no change in the registrant’s internal control over financial reporting that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

(3) Written solicitation to repurchase securities issued by closed-end companies: not applicable.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

T. Rowe Price Short-Term Bond Fund, Inc.

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

		By	/s/ David Oestreicher
			David Oestreicher
			Principal Executive Officer

Date	July 20, 2021


		By	/s/ Alan S. Dupski
			Alan S. Dupski
			Principal Financial Officer

Date	July 20, 2021

■	The Short Duration Income Fund returned 1.21% since its inception, outperforming its benchmark.

■	Sector allocation was a significant contributor to relative performance, followed by security selection. Conversely, yield curve positioning modestly detracted.

■	We aim to maintain current risk levels within the portfolio by targeting opportunities with attractive valuations and harvesting gains where spread levels do not provide adequate compensation for the risks associated with owning a credit.

■	We believe progress in managing the coronavirus pandemic will allow the economic recovery to continue for the foreseeable future.

INDEPENDENT DIRECTORS^(a)

Name (Year of Birth) Year Elected [Number of T. Rowe Price Portfolios Overseen]		Principal Occupation(s) and Directorships of Public Companies and Other Investment Companies During the Past Five Years

Teresa Bryce Bazemore (1959) 2018 [190]		President and Chief Executive Officer, Federal Home Loan Bank of San Francisco (2021 to present); President, Radian Guaranty (2008 to 2017); Chief Executive Officer, Bazemore Consulting LLC (2018 to 2021); Director, Chimera Investment Corporation (2017 to 2021); Director, First Industrial Realty Trust (2020 to present); Director, Federal Home Loan Bank of Pittsburgh (2017 to 2019)

Ronald J. Daniels (1959) 2018 [190]		President, The Johns Hopkins University^(b)and Professor, Political Science Department, The Johns Hopkins University (2009 to present); Director, Lyndhurst Holdings (2015 to present); Director, BridgeBio Pharma, Inc. (2020 to present)

Bruce W. Duncan (1951) 2013 [190]		President, Chief Executive Officer, and Director, CyrusOne, Inc. (2020 to present); Chief Executive Officer and Director (2009 to 2016), Chairman of the Board (2016 to 2020), and President (2009 to 2016), First Industrial Realty Trust, owner and operator of industrial properties; Chairman of the Board (2005 to 2016) and Director (1999 to 2016), Starwood Hotels & Resorts, a hotel and leisure company; Member, Investment Company Institute Board of Governors (2017 to 2019); Member, Independent Directors Council Governing Board (2017 to 2019); Senior Advisor, KKR (2018 to present); Director, Boston Properties (2016 to present); Director, Marriott International, Inc. (2016 to 2020)

Robert J. Gerrard, Jr. (1952) 2013 [190]		Advisory Board Member, Pipeline Crisis/Winning Strategies, a collaborative working to improve opportunities for young African Americans (1997 to 2016); Chairman of the Board, all funds (since July 2018)

Paul F. McBride (1956) 2013 [190]		Advisory Board Member, Vizzia Technologies (2015 to present); Board Member, Dunbar Armored (2012 to 2018)

Cecilia E. Rouse, Ph.D.^(c)(1963) 2013 [0]		Dean, Princeton School of Public and International Affairs (2012 to present); Professor and Researcher, Princeton University (1992 to present); Director of Education Studies Committee, MDRC, a nonprofit education and social policy research organization (2011 to 2020); Member, National Academy of Education (2010 to present); Board Member, National Bureau of Economic Research (2011 to present); Board Member of the Council on Foreign Relations (2018 to present); Board Member, The Pennington School (2017 to present); Board Member, the University of Rhode Island (2020 to present); Chair of Committee on the Status of Minority Groups in the Economic Profession of the American Economic Association (2012 to 2018); Vice President (2015 to 2016) and Board Member (2018 to present), American Economic Association

John G. Schreiber (1946) 1992 [190]		Owner/President, Centaur Capital Partners, Inc., a real estate investment company (1991 to present); Cofounder, Partner, and Cochairman of the Investment Committee, Blackstone Real Estate Advisors, L.P. (1992 to 2015); Director, Blackstone Mortgage Trust, a real estate finance company (2012 to 2016); Director and Chairman of the Board, Brixmor Property Group, Inc. (2013 to present); Director, Hilton Worldwide (2007 to present); Director, Hudson Pacific Properties (2014 to 2016); Director, Invitation Homes (2014 to 2017); Director, JMB Realty Corporation (1980 to present)

^(a)All information about the independent directors was current as of December 31, 2019, unless otherwise indicated, except for the number of portfolios overseen, which is current as of the date of this report.
^(b)William J. Stromberg, Chair of the Board, Director, and Chief Executive Officer of T. Rowe Price Group, Inc., the parent company of the Price Funds’ investment advisor, has served on the Board of Trustees of Johns Hopkins University since 2014.
^(c)Effective March 4, 2021, Dr. Rouse resigned from her role as independent director of the Price Funds.

INTERESTED DIRECTORS^(a)

Name (Year of Birth) Year Elected [Number of T. Rowe Price Portfolios Overseen]		Principal Occupation(s) and Directorships of Public Companies and Other Investment Companies During the Past Five Years

David Oestreicher (1967) 2018 [190]		Chief Legal Officer, Vice President, and Secretary, T. Rowe Price Group, Inc.; Chairman of the Board, Chief Executive Officer, President, and Secretary, T. Rowe Price Trust Company; Director, Vice President, and Secretary, T. Rowe Price, T. Rowe Price Investment Services, Inc., T. Rowe Price Retirement Plan Services, Inc., and T. Rowe Price Services, Inc.; Vice President and Secretary, T. Rowe Price International; Vice President, T. Rowe Price Hong Kong (Price Hong Kong), T. Rowe Price Japan (Price Japan), and T. Rowe Price Singapore (Price Singapore); Principal Executive Officer and Executive Vice President, all funds

Robert W. Sharps, CFA, CPA (1971) 2019 [190]		Director and Vice President, T. Rowe Price; President, T. Rowe Price Group, Inc.; Vice President, T. Rowe Price Trust Company

^(a)All information about the interested directors was current as of December 31, 2019, unless otherwise indicated, except for the number of portfolios overseen, which is current as of the date of this report.

OFFICERS

Name (Year of Birth) Position Held With Short Duration Income Fund		Principal Occupation(s)

Stephen L. Bartolini, CFA (1977) Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Jason T. Collins, CFA (1971) Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Maria H. Condez (1962) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Michael Patrick Daley (1981) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Levent Demirekler, CFA (1974) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Alan S. Dupski, CPA (1982) Principal Financial Officer, Vice President, and Treasurer		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Stephanie Angelique Gentile, CFA (1956) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

John R. Gilner (1961) Chief Compliance Officer		Chief Compliance Officer and Vice President, T. Rowe Price; Vice President, T. Rowe Price Group, Inc., and T. Rowe Price Investment Services, Inc.

Gary J. Greb (1961) Vice President		Vice President, T. Rowe Price, T. Rowe Price International, and T. Rowe Price Trust Company

Charles B. Hill, CFA (1961) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Keir R. Joyce, CFA (1972) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Steven M. Kohlenstein, CFA (1987) Executive Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Paul J. Krug, CPA (1964) Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Cheryl A. Mickel, CFA (1967) President		Director and Vice President, T. Rowe Price Trust Company; Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Alexander S. Obaza (1981) Executive Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Fran M. Pollack-Matz (1961) Vice President and Secretary		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., T. Rowe Price Investment Services, Inc., and T. Rowe Price Services, Inc.

Shannon H. Rauser (1987) Assistant Secretary		Assistant Vice President, T. Rowe Price

Michael F. Reinartz, CFA (1973) Executive Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Chen Shao (1980) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.

Tyrone Smith (1977) Vice President		Vice President, T. Rowe Price and T. Rowe Price Group, Inc.; formerly, Fixed Income Credit Trader, Aberdeen Asset Management Inc. (to 2018)

Douglas D. Spratley, CFA (1969) Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., and T. Rowe Price Trust Company

Megan Warren (1968) Vice President		Vice President, T. Rowe Price, T. Rowe Price Group, Inc., T. Rowe Price Retirement Plan Services, Inc., T. Rowe Price Services, Inc., and T. Rowe Price Trust Company; formerly, Executive Director, JPMorgan Chase (to 2017)

Unless otherwise noted, officers have been employees of T. Rowe Price or T. Rowe Price International for at least 5 years.

/s/ David Oestreicher

David Oestreicher

Principal Executive Officer

July 20, 2021