2021 Summary Prospectus - iShares

1 DECEMBER29,20222022 SummaryProspectus iShares ESG Aware MSCI USA ETF | ESGU | NASDAQB efore you invest, you may want to review the Fund s Prospectus , which contains moreinformation about the Fund and its risks. You can find the Fund s Prospectus (includingamendments and supplements) and other information about the Fund, including theFund s statement of additional information and shareholder reports, online at You can also get this information at no cost by calling 1-800- iShares (1-800-474-2737) or by sending an e-mail request or from your financial professional. The Fund s prospectusand statement of additional information, both dated December 29, 2022, as amendedand supplemented from time to time, are incorporated by reference into (legally made apart of) this Summary Prospectus . Information on the Fund s net asset value, marketprice, premiums and discounts, and bid-ask spreads can be found at Securities and Exchange commission has not approved or disapproved thesesecurities or passed upon the adequacy of this Prospectus .

2 Any representation to thecontrary is a criminal iShares , TrustiShares ETF TrustSupplement dated February 8, 2023 (the Supplement )to the Summary Prospectus (the Summary Prospectus ), Prospectus (the Prospectus ) andStatement of Additional Information ( SAI )for each of the funds listed below (each, a Fund )The information in this Supplement updates information in, andshould be read in conjunction with, each Fund s SummaryProspectus, Prospectus , and of February 8, 2023, Amy Whitelaw is no longer a Portfolio Managerfor the Funds. All references to Ms. Whitelaw in the SummaryProspectus, Prospectus , and SAI are hereby removedSupplement to the Summary Prospectus , Prospectus and Statementof Additional Information each dated as of March 1, 2022: iShares Bloomberg Roll SelectCommodity Strategy ETFiShares Commodity Curve CarryStrategy ETFiShares Gold Strategy ETFiShares GSCI Commodity DynamicRoll Strategy ETFiShares Yield Optimized Bond ETFS upplement to the Summary Prospectus dated April 26, 2022 andthe Prospectus and Statement of Additional Information each datedas of April 6, 2022: iShares Blockchain and Tech ETFS upplement to the Summary Prospectus and Prospectus both datedas of August 1, 2022, and to the Statement of Additional Informationdated as of August 1, 2022 (as revised October 3, 2022).

3 iShares asia 50 ETFiShares Emerging MarketsInfrastructure ETFiShares Global 100 ETFiShares Global Comm Services ETFiShares Global ConsumerDiscretionary ETFiShares Global Consumer Staples ETFiShares Global Energy ETFiShares Global Financials ETFiShares Global Healthcare ETFiShares Global Industrials ETFiShares Global Materials ETFiShares Global Tech ETFiShares Global Timber & forestry ETFiShares Global Utilities ETFiShares India 50 ETFiShares International DevelopedProperty ETFiShares International DividendGrowth ETFiShares Latin America 40 ETFS upplement to the Summary Prospectus and Prospectus both datedas of August 1, 2022, and to the Statement of Additional Informationdated as of August 1, 2022 (as revised January 27, 2023): iShares Biotechnology ETFiShares Core S&P 500 ETFiShares Core S&P Mid-Cap ETFiShares Core S&P Small-Cap ETFiShares Core S&P Total StockMarket ETFiShares Core S&P Growth ETFiShares Core S&P Value ETFiShares ESG Screened S&P 500 ETFiShares ESG Screened S&P Mid-CapETFiShares ESG Screened S&PSmall-Cap ETFiShares Europe ETFiShares Expanded Tech Sector ETFiShares Expanded Tech-SoftwareSector ETFiShares Factors US Growth Style ETFiShares Focused Value Factor ETFiShares International DevelopedSmall Cap Value Factor ETFiShares JPX-Nikkei 400 ETFiShares Micro-Cap ETFiShares Mortgage Real Estate ETFiShares North American NaturalResources ETFiShares North American Tech-Multimedia Networking ETFiShares Preferred and IncomeSecurities ETFiShares Residential and MultisectorReal Estate ETFiShares Russell 1000 ETFiShares Russell 1000 Growth ETFiShares Russell 1000 Value ETFiShares Russell 2000 ETFiShares Russell 2000 Growth ETFiShares Russell 2000 Value ETFiShares Russell 3000

4 ETFiShares Russell Mid-Cap ETFiShares Russell Mid-Cap GrowthETFiShares Russell Mid-Cap Value ETFiShares Russell Top 200 ETFiShares Russell Top 200 Growth ETFiShares Russell Top 200 Value ETFiShares S&P 100 ETFiShares S&P 500 Growth ETFiShares S&P 500 Value ETFiShares S&P Mid-Cap 400 GrowthETFiShares S&P Mid-Cap 400 Value ETFiShares S&P Small-Cap 600 Growth ETFiShares S&P Small-Cap 600 ValueETFiShares Semiconductor ETFiShares Aerospace & DefenseETFiShares Broker-Dealers &Securities Exchanges ETFiShares Healthcare ProvidersETFiShares Home Construction ETFiShares Infrastructure ETFiShares Insurance ETFiShares Medical Devices ETFiShares Oil & GasExploration & Production ETFiShares Oil Equipment &Services ETFiShares Pharmaceuticals ETFiShares Real Estate ETFiShares Regional Banks ETFiShares TelecommunicationsETFiShares US Small Cap Value FactorETFS upplement to the Summary Prospectus dated as of August 1, 2022and the Prospectus and Statement of Additional Information eachdated as of August 1, 2022 (as revised October 3, 2022): iShares Global Infrastructure ETFS upplement to the Summary Prospectus , the Prospectus andStatement of Additional Information each dated as of August 1, 2022(as revised January 27, 2023): iShares Factors US Value Style ETFS upplement to the Summary Prospectus , Prospectus and Statementof Additional Information each dated as of August 1, 2022: iShares Russell 2500 ETFS upplement to the Summary Prospectus , Prospectus and Statementof Additional Information each dated as of September 1, 2022: iShares asia /Pacific Dividend ETF iShares Emerging MarketsDividend ETFS upplement to the Summary Prospectus and Prospectus both datedas of September 1, 2022, and to the Statement of AdditionalInformation dated as of September 1, 2022 (as revisedOctober 3, 2022).

5 iShares Cohen & Steers REIT ETFiShares Core Dividend ETFiShares Core Dividend Growth ETFiShares Core High Dividend ETFiShares Core REIT ETFiShares Dow Jones ETFiShares Global REIT ETFiShares International SelectDividend ETFiShares Morningstar Growth ETFiShares Morningstar Mid-Cap ETFiShares Morningstar Mid-CapGrowth ETFiShares Morningstar Mid-Cap ValueETFiShares Morningstar Small-Cap ETFiShares Morningstar Small-Cap Growth ETFiShares Morningstar Small-Cap Value ETFiShares Morningstar EquityETFiShares Morningstar Value ETFiShares MSCI KLD 400 Social ETFiShares MSCI USA ESG Select ETFiShares Select Dividend ETFiShares Basic Materials ETFiShares ConsumerDiscretionary ETFiShares Consumer Staples ETFiShares Energy ETFiShares Financial Services ETFiShares Financials ETFiShares Healthcare ETFiShares Industrials ETFiShares Technology ETFiShares Transportation ETFiShares Utilities ETFS upplement to the Summary Prospectus dated as of September 1,2022 and the Prospectus and Statement of Additional Informationeach dated as of September 1, 2022 (as revised October 3, 2022): iShares International Developed Real Estate ETFS upplement to the Summary Prospectus and Prospectus both datedas of September 1, 2022 (as revised January 31.)

6 2023), and to theStatement of Additional Information dated as of September 1, 2022(as revised October 3, 2022): iShares Global Clean Energy ETFS upplement to the Summary Prospectus , Prospectus and Statementof Additional Information each dated as of December 1, 2022: iShares China Large-Cap ETFiShares Core MSCI EAFE ETFiShares Core MSCI Europe ETFiShares Core MSCI InternationalDeveloped Markets ETFiShares Core MSCI Pacific ETFiShares Core MSCI TotalInternational Stock ETFiShares Cybersecurity and Tech ETFiShares ESG MSCI USA Min VolFactor ETFiShares Exponential TechnologiesETFiShares Future Cloud 5G and TechETFiShares Genomics Immunology andHealthcare ETFiShares International Equity FactorETFiShares MSCI ACWI ETFiShares MSCI ACWI ex ETFiShares MSCI ACWI Low CarbonTarget ETFiShares MSCI All Country asia exJapan ETFiShares MSCI China A ETFiShares MSCI EAFE ETFiShares MSCI EAFE Growth ETFiShares MSCI EAFE Min Vol FactorETFiShares MSCI EAFE Small-Cap ETFiShares MSCI EAFE Value ETFiShares MSCI Europe FinancialsETFiShares MSCI Europe Small-CapETFiShares MSCI Global MultifactorETFiShares MSCI Intl MomentumFactor ETFiShares MSCI Intl Quality FactorETFiShares MSCI Intl Size Factor ETFiShares MSCI Intl Small-CapMultifactor ETFiShares MSCI

7 Intl Value Factor ETFiShares MSCI Kokusai ETFiShares MSCI USA Min Vol FactorETFiShares MSCI USA MomentumFactor ETFiShares MSCI USA Quality FactorETFiShares MSCI USA Size Factor ETFiShares MSCI USA Small-Cap MinVol Factor ETFiShares MSCI USA Small-CapMultifactor ETFiShares MSCI USA Value FactorETFiShares Neuroscience andHealthcare ETFiShares Robotics and ArtificialIntelligence Multisector ETFiShares Self-Driving EV and TechETFiShares Equity Factor ETFiShares Tech BreakthroughMultisector ETFiShares Virtual Work and LifeMultisector ETFS upplement to the Prospectus and Statement of AdditionalInformation each dated as of December 1, 2022: iShares Core Aggressive AllocationETFiShares Core ConservativeAllocation ETFiShares Core Growth Allocation ETFiShares Core Moderate AllocationETFiShares ESG Aware AggressiveAllocation ETFiShares ESG Aware ConservativeAllocation ETFiShares ESG Aware GrowthAllocation ETFiShares ESG Aware ModerateAllocation ETFiShares Morningstar Multi-AssetIncome ETFS upplement to the Summary Prospectus , Prospectus and Statementof Additional Information each dated as of December 29, 2022.

8 iShares Core MSCI EmergingMarkets ETFiShares Emergent Food and AgTechMultisector ETFiShares ESG Advanced MSCI EAFEETFiShares ESG Advanced MSCI EMETFiShares ESG Advanced MSCI USAETFiShares ESG Aware MSCI EAFE ETFiShares ESG Aware MSCI EM ETFiShares ESG Aware MSCI USA ETFiShares ESG Aware MSCI USAS mall-Cap ETFiShares ESG MSCI EM Leaders ETFiShares ESG MSCI USA Leaders ETFiShares MSCI Agriculture ProducersETFiShares MSCI Australia ETFiShares MSCI Austria ETFiShares MSCI Belgium ETFiShares MSCI BIC ETFiShares MSCI Brazil ETFiShares MSCI Brazil Small-Cap ETFiShares MSCI Canada ETFiShares MSCI Chile ETFiShares MSCI China ETFiShares MSCI China MultisectorTech ETFiShares MSCI China Small-Cap ETFiShares MSCI Denmark ETFiShares MSCI Emerging MarketsAsia ETFiShares MSCI Emerging MarketsETFiShares MSCI Emerging Markets exChina ETFiShares MSCI Emerging MarketsMin Vol Factor ETFiShares MSCI Emerging MarketsMultifactor ETFiShares MSCI Emerging MarketsSmall-Cap ETFiShares MSCI Eurozone ETFiShares MSCI Finland ETFiShares MSCI France ETFiShares MSCI Frontier and SelectEM ETFiShares MSCI Germany ETFiShares MSCI Germany Small-CapETFiShares MSCI Global EnergyProducers ETFiShares MSCI Global Gold MinersETFiShares MSCI Global Metals &Mining Producers ETFiShares MSCI Global Min Vol FactorETFiShares MSCI Global Silver andMetals Miners ETFiShares MSCI Global SustainableDevelopment Goals ETFiShares MSCI Hong Kong ETFiShares MSCI India Small-Cap ETFiShares MSCI Indonesia ETFiShares MSCI Ireland ETFiShares MSCI Israel ETFiShares MSCI Italy ETFiShares MSCI Japan ETFiShares MSCI Japan Small-Cap ETFiShares MSCI Japan Value ETFiShares MSCI Kuwait ETFiShares MSCI Malaysia ETFiShares MSCI Mexico ETFiShares MSCI Netherlands ETFiShares MSCI New Zealand ETFiShares MSCI Norway ETFiShares MSCI Pacific ex Japan ETFiShares MSCI Peru ETFiShares MSCI Philippines ETFiShares MSCI Poland ETFiShares MSCI Qatar ETFiShares MSCI Russia ETFiShares MSCI Saudi Arabia ETFiShares

9 MSCI Singapore ETFiShares MSCI South Africa ETFiShares MSCI South Korea ETFiShares MSCI Spain ETFiShares MSCI Sweden ETFiShares MSCI Switzerland ETFiShares MSCI Taiwan ETFiShares MSCI Thailand ETFiShares MSCI Turkey ETFiShares MSCI UAE ETFiShares MSCI United Kingdom ETFiShares MSCI United KingdomSmall-Cap ETFiShares MSCI USA Equal WeightedETFiShares MSCI World ETFiShares Paris-Aligned ClimateMSCI USA ETFS upplement to the Summary Prospectus and Prospectus both datedas of December 29, 2022 (as revised January 13, 2023) andStatement of Additional Information dated as of December 29, 2022: iShares MSCI India ETFS upplement to the Summary Prospectus dated September 21, 2022and the Prospectus and Statement of Additional Information eachdated as of September 6, 2022: iShares MSCI Water Management Multisector ETFS upplement to the Summary Prospectus dated November 16, 2022and the Prospectus and Statement of Additional Information eachdated as of September 22, 2022 (as revised November 9, 2022): iShares Environmentally Aware Real Estate ETFS upplement to the Summary Prospectus dated November 2, 2022and the Prospectus and Statement of Additional Information eachdated as of October 24, 2022: iShares Environmental Infrastructure and Industrials ETFS upplement to the Summary Prospectus dated February 1, 2023 andthe Prospectus and Statement of Additional Information each datedas of December 29, 2022: iShares ESG Aware MSCI USAG rowth ETFiShares ESG Aware MSCI USAV alue ETFS upplement to Prospectus and Statement of Additional Informationeach dated as of January 31, 2023: iShares Future Metaverse Tech and Communications ETFIf you have any questions, please call 1-800- iShares (1-800-474-2737).

10 iShares is a registered trademark of BlackRock Fund Advisors and its RETAIN THIS SUPPLEMENTFOR FUTURE REFERENCE[THIS PAGE INTENTIONALLY LEFT BLANK] iShares ESG AWARE MSCI USA ETFT icker: ESGUS tock Exchange: NasdaqInvestment ObjectiveThe iShares ESG Aware MSCI USA ETF (the Fund ) seeks to track the investmentresults of an index composed of companies that have positive environmental,social and governance characteristics as identified by the index provider whileexhibiting risk and return characteristics similar to those of the parent and ExpensesThe following table describes the fees and expenses that you will incur if you buy, holdand sell shares of the Fund. The investment advisory agreement between iShares Trust(the Trust ) and BlackRock Fund Advisors ( BFA ) (the Investment AdvisoryAgreement ) provides that BFA will pay all operating expenses of the Fund, except: (i)the management fees, (ii) interest expenses, (iii) taxes, (iv) expenses incurred withrespect to the acquisition and disposition of portfolio securities and the execution ofportfolio transactions, including brokerage commissions, (v) distribution fees orexpenses, and (vi) litigation expenses and any extraordinary may pay other fees, such as brokerage commissions and other fees tofinancial intermediaries, which are not reflected in the tables and Fund Operating Expenses(ongoing expenses that you pay each year as apercentage of the value of your investments)ManagementFeesDistribution andService (12b-1)FeesOtherExpenses1 Total amount rounded to Ex