0001193125-21-343863.txt : 20211201 0001193125-21-343863.hdr.sgml : 20211201 20211130175304 ACCESSION NUMBER: 0001193125-21-343863 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 15 FILED AS OF DATE: 20211201 DATE AS OF CHANGE: 20211130 EFFECTIVENESS DATE: 20211201 FILER: COMPANY DATA: COMPANY CONFORMED NAME: iSHARES TRUST CENTRAL INDEX KEY: 0001100663 IRS NUMBER: 943351276 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-92935 FILM NUMBER: 211460634 BUSINESS ADDRESS: STREET 1: 400 HOWARD STREET CITY: SAN FRANCISCO STATE: CA ZIP: 94105 BUSINESS PHONE: (415) 670-2000 MAIL ADDRESS: STREET 1: 400 HOWARD STREET CITY: SAN FRANCISCO STATE: CA ZIP: 94105 FORMER COMPANY: FORMER CONFORMED NAME: ISHARES TRUST DATE OF NAME CHANGE: 19991213 0001100663 S000004436 iShares MSCI USA ESG Select ETF C000012199 iShares MSCI USA ESG Select ETF SUSA 0001100663 S000013931 iShares MSCI KLD 400 Social ETF C000038163 iShares MSCI KLD 400 Social ETF DSI 497 1 d253366d497.htm FORM 497 Form 497

iShares®
iShares Trust
Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI KLD 400 Social ETF (DSI) (the “Fund”)
The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund.
The following changes for the Fund will be effective on or around December 1, 2021.
Change in the Fund’s “Principal Investment Strategies”
The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:
The Fund seeks to track the investment results of the MSCI KLD 400 Social Index (the “Underlying Index”), which is a free float-adjusted market capitalization index designed to provide exposure to U.S. companies that have positive environmental, social and governance (“ESG”) characteristics. As of November 22, 2021, the Underlying Index consisted of 404 securities identified by MSCI Inc. (the “Index Provider” or “MSCI”) from the universe of companies included in the MSCI USA IMI Index, which targets 99% of the market coverage of stocks that are listed for trading on the New York Stock Exchange (“NYSE”) and the Nasdaq Stock Market. MSCI analyzes each eligible company’s ESG performance using proprietary ratings covering ESG criteria. When selecting companies for the Underlying Index, MSCI also considers market capitalization and liquidity. Companies that MSCI determines have significant involvement in the following businesses are not eligible for the Underlying Index: fossil fuel extraction, fossil fuel reserve ownership, thermal coal mining, unconventional oil and gas extraction, thermal coal-based power generation, alcohol, tobacco, gambling, civilian firearms, nuclear power, controversial weapons, nuclear weapons, conventional weapons, adult entertainment and genetically modified organisms.
The Underlying Index includes large-, mid‑, and small-capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities

of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.
Change in the Fund’s “A Further Discussion of Other Risks”
The section entitled “Mid‑Capitalization Companies Risk.” on page 14 of the Prospectus shall be deleted in its entirety.
Change in the Fund’s “Construction and Maintenance of the Underlying Indexes”
The section entitled “MSCI KLD 400 Social Index” on page 43 of the SAI shall be deleted in its entirety and replaced with the following:
Number of Components: 404
Component Selection Criteria and Index Description. The MSCI KLD 400 Social Index is a free float-adjusted market capitalization weighted index designed to provide exposure to U.S. companies that have positive environmental, social and governance (“ESG”) characteristics. As of November 22, 2021, the Underlying Index consisted of 404 securities identified by MSCI from the universe of companies included in the MSCI USA IMI Index, which consists of the largest NYSE and NASDAQ listed U.S. equities ranked by investable market capitalization (after the application of any investability weightings). MSCI analyzes each eligible company’s ESG performance using proprietary ratings covering environmental, social, and governance criteria. MSCI seeks to include in the Underlying Index companies with high ESG ratings relative to their sector peers and in relation to the broader market. When selecting companies for the Underlying Index, MSCI also considers market capitalization and liquidity. Companies that MSCI determines have significant involvement in the following businesses are not eligible for the Underlying Index: fossil fuel extraction, fossil fuel reserve ownership, thermal coal mining, unconventional oil and gas extraction, thermal coal -based power generation, alcohol, tobacco, gambling, civilian firearms, nuclear power, controversial weapons, nuclear weapons, conventional weapons, adult entertainment and genetically modified organisms.
Index Maintenance. The composition of the Underlying Index is reviewed on a quarterly basis. Companies can be added to the Underlying Index only at regular index reviews. Current index constituents are reviewed to determine if any should be removed due to ESG performance. In addition, if a constituent is removed from the MSCI USA IMI Index as a result of the index review, it will be simultaneously removed from the Underlying Index. The deleted companies are

replaced with eligible companies taking into account size‑segment and sector representation. The Underlying Index will be restored to 400 companies at each index review.
Maintaining the Underlying Index includes monitoring and completing the adjustments for company additions and removals, stock splits, stock dividends, float changes and stock price adjustments due to restructurings, spin-offs and other corporate actions. New additions to the MSCI USA IMI Index due to corporate events will not be added simultaneously to the Underlying Index, but will be considered for inclusion at the following index review. However, companies deleted from the MSCI USA IMI Index between index reviews are also deleted at the same time from the Underlying Index.
When the number of securities in the Underlying Index falls below 400 due to corporate events, no additions will be made to restore the number of constituents to 400 until the next quarterly index review.
Index Availability. The Underlying Index is calculated continuously and is available from major data vendors.
Calculation Methodology. The Fund utilizes the Underlying Index calculated with gross dividends reinvested. The use of gross dividends reflects the assumed reinvestment of the entire dividend distributed to holders of the underlying stock, without any adjustment for taxes or withholding. The Index is rebalanced on a quarterly basis coinciding with the regular index review of the MSCI Global Investable Market Indexes.
If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).
 
iShares® is a registered trademark of BlackRock Fund Advisors and its affiliates.
IS-A-DSI-1221
 
 
PLEASE RETAIN THIS SUPPLEMENT
FOR FUTURE REFERENCE

iShares®
iShares Trust
Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI USA ESG Select ETF (SUSA) (the “Fund”)
The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund.
The following changes for the Fund will be effective on or around December 1, 2021.
Change in the Fund’s “Principal Investment Strategies”
The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:
The Fund seeks to track the investment results of the MSCI USA Extended ESG Select Index (the “Underlying Index”), which is an optimized index designed to maximize exposure to positive environmental, social and governance (“ESG”) characteristics, while exhibiting risk and return characteristics similar to the MSCI USA Index. As of November 22, 2021, the Underlying Index consisted of 183 securities included in the MSCI USA Index. MSCI Inc. (the “Index Provider” or “MSCI”) analyzes each eligible company’s ESG performance using proprietary ratings covering ESG and ethics criteria. The index methodology is designed so that companies with relatively high overall ratings have a higher representation in the Underlying Index than in the MSCI USA Index and companies with relatively low overall ratings have a lower representation in the Underlying Index than in the MSCI USA Index. Exceptions may result from the Underlying Index’s objective of having risk and return characteristics similar to the MSCI USA Index. The Index Provider excludes securities of companies involved in the business of tobacco, alcohol, gambling, nuclear power and weapons, fossil fuel extraction, thermal coal and unconventional oil and gas businesses (e.g., thermal coal extraction and generation or oil sands extraction), companies involved with conventional and controversial weapons, producers and major retailers of civilian firearms, as well as companies involved in very severe business controversies. The Index Provider defines a controversy as an instance or ongoing situation in which

company operations and/or products allegedly have a negative environmental, social and/or governance impact. Each controversy case is assessed for the severity of its impact on society. The Index Provider generally classifies companies as “involved” in a particular business based on revenue or percentage of revenue thresholds (e.g., 10%) for certain products and activities in an excluded industry. The securities of certain companies will be excluded regardless of revenue measures (e.g., all companies involved in the manufacturing of controversial weapons are excluded).
The Underlying Index includes large and mid‑capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.
Change in the Fund’s “A Further Discussion of Other Risks”
The section entitled “Mid‑Capitalization Companies Risk.” on page 14 of the Prospectus shall be deleted in its entirety.
Change in the Fund’s “Construction and Maintenance of the Underlying Indexes”
The section entitled “MSCI USA Extended ESG Select Index” on pages 43‑44 of the SAI shall be deleted in its entirety and replaced with the following:
Number of Components: approximately 183
Component Selection Criteria and Index Description. The Underlying Index is an optimized index designed to measure the equity performance of U.S. companies that have ESG characteristics, while exhibiting risk and return characteristics similar to the MSCI USA Index.
As of November 22, 2021, the Underlying Index consisted of 183 securities included in the MSCI USA Index. MSCI evaluates each eligible company’s ESG performance using standardized criteria and assigns an “overall rating” to each company. ESG scores are normalized and factored into the optimization process. Optimization is a quantitative process that considers the market capitalization weights from the MSCI USA Index, ESG scores, and additional optimization constraints to select and weigh the constituents in the Underlying Index. Normalization of the ESG scores allows the optimization to assess each score in the context of the overall distribution of the ESG scores.

The selection process is designed so that companies with relatively high overall ratings have a higher representation in the Underlying Index than in the MSCI USA Index. Companies with relatively low overall ratings have a lower representation in the Underlying Index than in the MSCI USA Index. Exceptions may result from the Underlying Index’s objective of having risk and return characteristics similar to those of the MSCI USA Index.
The Underlying Index constituents are selected from the MSCI USA Index, which is made up of securities of large-capitalization and mid-capitalization U.S. companies. The Index Provider excludes securities of companies involved in the business of tobacco, alcohol, gambling, nuclear power and weapons, fossil fuel extraction, thermal coal and unconventional oil and gas businesses (e.g., thermal coal extraction and generation or oil sands extraction), companies involved with conventional and controversial weapons, producers and major retailers of civilian firearms, as well as companies involved in very severe business controversies. The Index Provider defines a controversy as an instance or ongoing situation in which company operations and/or products allegedly have a negative environmental, social and/or governance impact. Each controversy case is assessed for the severity of its impact on society. The Index Provider generally classifies companies as “involved” in a particular business based on revenue or percentage of revenue thresholds (e.g., 10%) for certain products and activities in an excluded industry. The securities of certain companies will be excluded regardless of revenue measures (e.g., all companies involved in the manufacturing of controversial weapons are excluded). The Underlying Index generally follows the same index methodology as the MSCI USA ESG Select Index, except that it applies an additional ineligibility criteria for retailers of civilian firearms (which is a revenue-threshold based classification). Companies with an ESG Controversies Score below 3 are not eligible for the Underlying Index. To maintain risk and return characteristics similar to the MSCI USA Index, the universe of eligible companies are optimized using parameters for predicted tracking error (1.8%) relative to the parent index, maximum (5%) and minimum (0.1%) constituent weight relative to the parent index, sector variation from the parent index (+/-3%), turnover and other factors. Since constituent selection and weights are determined using optimization, the Underlying Index is not capitalization weighted.
Index Maintenance. The composition of the Underlying Index is reviewed on a quarterly basis. Companies can only be added to the Underlying Index at regular index reviews. Current index constituents are reviewed to determine if any of them should be removed using the optimization described above. At the quarterly index reviews, companies with ESG Controversies Scores below are removed. The

Underlying Index is optimized on a quarterly basis coinciding with the regular index reviews of the MSCI Global Investable Market Indexes. Changes are effective at the beginning of March, June, September and December.
Maintaining the Underlying Index includes monitoring and completing the adjustments for company additions and removals, stock splits, stock dividends, float changes and stock price adjustments due to restructurings, spin-offs and other corporate actions. Companies deleted from the MSCI USA Index between quarterly index reviews due to corporate events maintenance are simultaneously deleted from the Underlying Index.
Index Availability. The MSCI USA Extended ESG Select Index is calculated continuously and is available from major data vendors.
Calculation Methodology. The Fund utilizes the Underlying Index calculated with gross dividends reinvested. The use of gross dividends reflects the assumed reinvestment of the entire dividend distributed to holders of the underlying stock, without any adjustment for taxes or withholding. The Index is rebalanced on a quarterly basis coinciding with the regular Index Review of the MSCI Global Investable Market Indexes.
If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).
 
iShares® is a registered trademark of BlackRock Fund Advisors and its affiliates.
IS‑A‑SUSA‑1221
 
 
PLEASE RETAIN THIS SUPPLEMENT
FOR FUTURE REFERENCE
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24pt; font-family: arial; font-weight: bold; text-align: center;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">iShares Trust</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI KLD 400 Social ETF (DSI) (the “Fund”)</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;"><span style="font-weight: bold;"/><span style="font-weight: bold;"><span style="font-style: italic;">The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund. </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;">The following changes for the Fund will be effective on or around December 1, 2021. </span></div> <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;"><span style="text-decoration: underline;">Change in the Fund’s “Principal Investment Strategies” </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;">The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Fund seeks to track the investment results of the MSCI KLD 400 Social Index (the “Underlying Index”), which is a free float-adjusted market capitalization index designed to provide exposure to U.S. companies that have positive environmental, social and governance (“ESG”) characteristics. As of November 22, 2021, the Underlying Index consisted of 404 securities identified by MSCI Inc. (the “Index Provider” or “MSCI”) from the universe of companies included in the MSCI USA IMI Index, which targets 99% of the market coverage of stocks that are listed for trading on the New York Stock Exchange (“NYSE”) and the Nasdaq Stock Market. MSCI analyzes each eligible company’s ESG performance using proprietary ratings covering ESG criteria. When selecting companies for the Underlying Index, MSCI also considers market capitalization and liquidity. Companies that MSCI determines have significant involvement in the following businesses are not eligible for the Underlying Index: fossil fuel <span style="font-size: 10pt;"><span style="font-size: 13.3333px; background-color: #ffffff;">extraction, fossil fuel </span>reserve ownership, thermal coal mining, unconventional oil and gas extraction, thermal coal-based power generation, alcohol, tobacco, gambling, civilian firearms, nuclear power, controversial weapons, nuclear weapons, conventional weapons, adult entertainment and genetically modified organisms.</span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Underlying Index includes large-, mid‑, and small-capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).</div> <div style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 2%; text-indent: -1%; font-size: 8pt; font-family: arial;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 24pt; font-family: arial; font-weight: bold; text-align: center;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">iShares Trust</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI USA ESG Select ETF (SUSA) (the “Fund”)</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;"><span style="font-weight: bold;"/><span style="font-weight: bold;"><span style="font-style: italic;">The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund. </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;">The following changes for the Fund will be effective on or around December 1, 2021. </span></div> <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;"><span style="text-decoration: underline;">Change in the Fund’s “Principal Investment Strategies” </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;">The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Fund seeks to track the investment results of the MSCI USA Extended ESG Select Index (the “Underlying Index”), which is an optimized index designed to maximize exposure to positive environmental, social and governance (“ESG”) characteristics, while exhibiting risk and return characteristics similar to the MSCI USA Index. As of November 22, 2021, the Underlying Index consisted of 183 securities included in the MSCI USA Index. MSCI Inc. (the “Index Provider” or “MSCI”) analyzes each eligible company’s ESG performance using proprietary ratings covering ESG and ethics criteria. The index methodology is designed so that companies with relatively high overall ratings have a higher representation in the Underlying Index than in the MSCI USA Index and companies with relatively low overall ratings have a lower representation in the Underlying Index than in the MSCI USA Index. Exceptions may result from the Underlying Index’s objective of having risk and return characteristics similar to the MSCI USA Index. The Index Provider excludes securities of companies involved in the business of tobacco, alcohol, gambling, nuclear power and weapons, <span style="font-size: 10pt;"><span style="font-size: 13.3333px; background-color: #ffffff;">fossil fuel extraction, </span>thermal coal and unconventional oil and gas businesses (</span><span style="font-style: italic;">e.g.</span><span style="font-size: 10pt;">, thermal coal extraction and generation or oil sands extraction), companies involved with conventional and controversial weapons, producers and major retailers of civilian firearms, as well as companies involved in very severe business controversies. The Index Provider defines a controversy as an instance or ongoing situation in which</span></div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">company operations and/or products allegedly have a negative environmental, social and/or governance impact. Each controversy case is assessed for the severity of its impact on society. The Index Provider generally classifies companies as “involved” in a particular business based on revenue or percentage of revenue thresholds (<span style="font-style: italic;">e.g</span>., 10%) for certain products and activities in an excluded industry. The securities of certain companies will be excluded regardless of revenue measures (<span style="font-style: italic;">e.g</span>., all companies involved in the manufacturing of controversial weapons are excluded).</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Underlying Index includes large and mid‑capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).</div> <div style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 2%; text-indent: -1%; font-size: 8pt; font-family: arial;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 24pt; font-family: arial; font-weight: bold; text-align: center;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">iShares Trust</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI KLD 400 Social ETF (DSI) (the “Fund”)</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;"><span style="font-weight: bold;"/><span style="font-weight: bold;"><span style="font-style: italic;">The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund. </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;">The following changes for the Fund will be effective on or around December 1, 2021. </span></div> <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;"><span style="text-decoration: underline;">Change in the Fund’s “Principal Investment Strategies” </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;">The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Fund seeks to track the investment results of the MSCI KLD 400 Social Index (the “Underlying Index”), which is a free float-adjusted market capitalization index designed to provide exposure to U.S. companies that have positive environmental, social and governance (“ESG”) characteristics. As of November 22, 2021, the Underlying Index consisted of 404 securities identified by MSCI Inc. (the “Index Provider” or “MSCI”) from the universe of companies included in the MSCI USA IMI Index, which targets 99% of the market coverage of stocks that are listed for trading on the New York Stock Exchange (“NYSE”) and the Nasdaq Stock Market. MSCI analyzes each eligible company’s ESG performance using proprietary ratings covering ESG criteria. When selecting companies for the Underlying Index, MSCI also considers market capitalization and liquidity. Companies that MSCI determines have significant involvement in the following businesses are not eligible for the Underlying Index: fossil fuel <span style="font-size: 10pt;"><span style="font-size: 13.3333px; background-color: #ffffff;">extraction, fossil fuel </span>reserve ownership, thermal coal mining, unconventional oil and gas extraction, thermal coal-based power generation, alcohol, tobacco, gambling, civilian firearms, nuclear power, controversial weapons, nuclear weapons, conventional weapons, adult entertainment and genetically modified organisms.</span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Underlying Index includes large-, mid‑, and small-capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).</div> <div style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 2%; text-indent: -1%; font-size: 8pt; font-family: arial;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.</div> iShares Trust 2021-12-01 2021-09-01 2021-12-01 <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 24pt; font-family: arial; font-weight: bold; text-align: center;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">iShares Trust</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI USA ESG Select ETF (SUSA) (the “Fund”)</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;"><span style="font-weight: bold;"/><span style="font-weight: bold;"><span style="font-style: italic;">The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund. </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;">The following changes for the Fund will be effective on or around December 1, 2021. </span></div> <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;"><span style="font-style: italic;"><span style="text-decoration: underline;">Change in the Fund’s “Principal Investment Strategies” </span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold;">The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Fund seeks to track the investment results of the MSCI USA Extended ESG Select Index (the “Underlying Index”), which is an optimized index designed to maximize exposure to positive environmental, social and governance (“ESG”) characteristics, while exhibiting risk and return characteristics similar to the MSCI USA Index. As of November 22, 2021, the Underlying Index consisted of 183 securities included in the MSCI USA Index. MSCI Inc. (the “Index Provider” or “MSCI”) analyzes each eligible company’s ESG performance using proprietary ratings covering ESG and ethics criteria. The index methodology is designed so that companies with relatively high overall ratings have a higher representation in the Underlying Index than in the MSCI USA Index and companies with relatively low overall ratings have a lower representation in the Underlying Index than in the MSCI USA Index. Exceptions may result from the Underlying Index’s objective of having risk and return characteristics similar to the MSCI USA Index. The Index Provider excludes securities of companies involved in the business of tobacco, alcohol, gambling, nuclear power and weapons, <span style="font-size: 10pt;"><span style="font-size: 13.3333px; background-color: #ffffff;">fossil fuel extraction, </span>thermal coal and unconventional oil and gas businesses (</span><span style="font-style: italic;">e.g.</span><span style="font-size: 10pt;">, thermal coal extraction and generation or oil sands extraction), companies involved with conventional and controversial weapons, producers and major retailers of civilian firearms, as well as companies involved in very severe business controversies. The Index Provider defines a controversy as an instance or ongoing situation in which</span></div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">company operations and/or products allegedly have a negative environmental, social and/or governance impact. Each controversy case is assessed for the severity of its impact on society. The Index Provider generally classifies companies as “involved” in a particular business based on revenue or percentage of revenue thresholds (<span style="font-style: italic;">e.g</span>., 10%) for certain products and activities in an excluded industry. The securities of certain companies will be excluded regardless of revenue measures (<span style="font-style: italic;">e.g</span>., all companies involved in the manufacturing of controversial weapons are excluded).</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The Underlying Index includes large and mid‑capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).</div> <div style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 2%; text-indent: -1%; font-size: 8pt; font-family: arial;">iShares<sup style="font-size: 85%; vertical-align: top;">®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.</div> XML 7 R1.htm IDEA: XBRL DOCUMENT v3.21.2
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Registrant Name dei_EntityRegistrantName iShares Trust
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iShares®
iShares Trust
Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI KLD 400 Social ETF (DSI) (the “Fund”)
The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund.
The following changes for the Fund will be effective on or around December 1, 2021.
Change in the Fund’s “Principal Investment Strategies”
The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:
The Fund seeks to track the investment results of the MSCI KLD 400 Social Index (the “Underlying Index”), which is a free float-adjusted market capitalization index designed to provide exposure to U.S. companies that have positive environmental, social and governance (“ESG”) characteristics. As of November 22, 2021, the Underlying Index consisted of 404 securities identified by MSCI Inc. (the “Index Provider” or “MSCI”) from the universe of companies included in the MSCI USA IMI Index, which targets 99% of the market coverage of stocks that are listed for trading on the New York Stock Exchange (“NYSE”) and the Nasdaq Stock Market. MSCI analyzes each eligible company’s ESG performance using proprietary ratings covering ESG criteria. When selecting companies for the Underlying Index, MSCI also considers market capitalization and liquidity. Companies that MSCI determines have significant involvement in the following businesses are not eligible for the Underlying Index: fossil fuel extraction, fossil fuel reserve ownership, thermal coal mining, unconventional oil and gas extraction, thermal coal-based power generation, alcohol, tobacco, gambling, civilian firearms, nuclear power, controversial weapons, nuclear weapons, conventional weapons, adult entertainment and genetically modified organisms.
The Underlying Index includes large-, mid‑, and small-capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities
of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.
If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).
iShares® is a registered trademark of BlackRock Fund Advisors and its affiliates.
iShares®
iShares Trust
Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI USA ESG Select ETF (SUSA) (the “Fund”)
The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund.
The following changes for the Fund will be effective on or around December 1, 2021.
Change in the Fund’s “Principal Investment Strategies”
The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:
The Fund seeks to track the investment results of the MSCI USA Extended ESG Select Index (the “Underlying Index”), which is an optimized index designed to maximize exposure to positive environmental, social and governance (“ESG”) characteristics, while exhibiting risk and return characteristics similar to the MSCI USA Index. As of November 22, 2021, the Underlying Index consisted of 183 securities included in the MSCI USA Index. MSCI Inc. (the “Index Provider” or “MSCI”) analyzes each eligible company’s ESG performance using proprietary ratings covering ESG and ethics criteria. The index methodology is designed so that companies with relatively high overall ratings have a higher representation in the Underlying Index than in the MSCI USA Index and companies with relatively low overall ratings have a lower representation in the Underlying Index than in the MSCI USA Index. Exceptions may result from the Underlying Index’s objective of having risk and return characteristics similar to the MSCI USA Index. The Index Provider excludes securities of companies involved in the business of tobacco, alcohol, gambling, nuclear power and weapons, fossil fuel extraction, thermal coal and unconventional oil and gas businesses (e.g., thermal coal extraction and generation or oil sands extraction), companies involved with conventional and controversial weapons, producers and major retailers of civilian firearms, as well as companies involved in very severe business controversies. The Index Provider defines a controversy as an instance or ongoing situation in which
company operations and/or products allegedly have a negative environmental, social and/or governance impact. Each controversy case is assessed for the severity of its impact on society. The Index Provider generally classifies companies as “involved” in a particular business based on revenue or percentage of revenue thresholds (e.g., 10%) for certain products and activities in an excluded industry. The securities of certain companies will be excluded regardless of revenue measures (e.g., all companies involved in the manufacturing of controversial weapons are excluded).
The Underlying Index includes large and mid‑capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.
If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).
iShares® is a registered trademark of BlackRock Fund Advisors and its affiliates.
iShares MSCI KLD 400 Social ETF  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
iShares®
iShares Trust
Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI KLD 400 Social ETF (DSI) (the “Fund”)
The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund.
The following changes for the Fund will be effective on or around December 1, 2021.
Change in the Fund’s “Principal Investment Strategies”
The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:
The Fund seeks to track the investment results of the MSCI KLD 400 Social Index (the “Underlying Index”), which is a free float-adjusted market capitalization index designed to provide exposure to U.S. companies that have positive environmental, social and governance (“ESG”) characteristics. As of November 22, 2021, the Underlying Index consisted of 404 securities identified by MSCI Inc. (the “Index Provider” or “MSCI”) from the universe of companies included in the MSCI USA IMI Index, which targets 99% of the market coverage of stocks that are listed for trading on the New York Stock Exchange (“NYSE”) and the Nasdaq Stock Market. MSCI analyzes each eligible company’s ESG performance using proprietary ratings covering ESG criteria. When selecting companies for the Underlying Index, MSCI also considers market capitalization and liquidity. Companies that MSCI determines have significant involvement in the following businesses are not eligible for the Underlying Index: fossil fuel extraction, fossil fuel reserve ownership, thermal coal mining, unconventional oil and gas extraction, thermal coal-based power generation, alcohol, tobacco, gambling, civilian firearms, nuclear power, controversial weapons, nuclear weapons, conventional weapons, adult entertainment and genetically modified organisms.
The Underlying Index includes large-, mid‑, and small-capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities
of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.
If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).
iShares® is a registered trademark of BlackRock Fund Advisors and its affiliates.
iShares MSCI USA ESG Select ETF  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
iShares®
iShares Trust
Supplement dated December 1, 2021 (the “Supplement”) to the Summary Prospectus and Prospectus, each dated September 1, 2021 and Statement of Additional Information (the “SAI”), dated September 1, 2021 (as revised September 10, 2021), for the iShares MSCI USA ESG Select ETF (SUSA) (the “Fund”)
The information in this Supplement updates information in, and should be read in conjunction with, the Summary Prospectus, Prospectus and the SAI for the Fund.
The following changes for the Fund will be effective on or around December 1, 2021.
Change in the Fund’s “Principal Investment Strategies”
The first paragraph of the section of the Summary Prospectus and Prospectus entitled “Principal Investment Strategies” for the Fund shall be deleted in its entirety and replaced with the following:
The Fund seeks to track the investment results of the MSCI USA Extended ESG Select Index (the “Underlying Index”), which is an optimized index designed to maximize exposure to positive environmental, social and governance (“ESG”) characteristics, while exhibiting risk and return characteristics similar to the MSCI USA Index. As of November 22, 2021, the Underlying Index consisted of 183 securities included in the MSCI USA Index. MSCI Inc. (the “Index Provider” or “MSCI”) analyzes each eligible company’s ESG performance using proprietary ratings covering ESG and ethics criteria. The index methodology is designed so that companies with relatively high overall ratings have a higher representation in the Underlying Index than in the MSCI USA Index and companies with relatively low overall ratings have a lower representation in the Underlying Index than in the MSCI USA Index. Exceptions may result from the Underlying Index’s objective of having risk and return characteristics similar to the MSCI USA Index. The Index Provider excludes securities of companies involved in the business of tobacco, alcohol, gambling, nuclear power and weapons, fossil fuel extraction, thermal coal and unconventional oil and gas businesses (e.g., thermal coal extraction and generation or oil sands extraction), companies involved with conventional and controversial weapons, producers and major retailers of civilian firearms, as well as companies involved in very severe business controversies. The Index Provider defines a controversy as an instance or ongoing situation in which
company operations and/or products allegedly have a negative environmental, social and/or governance impact. Each controversy case is assessed for the severity of its impact on society. The Index Provider generally classifies companies as “involved” in a particular business based on revenue or percentage of revenue thresholds (e.g., 10%) for certain products and activities in an excluded industry. The securities of certain companies will be excluded regardless of revenue measures (e.g., all companies involved in the manufacturing of controversial weapons are excluded).
The Underlying Index includes large and mid‑capitalization companies and may change over time. As of November 22, 2021, a significant portion of the Underlying Index is represented by securities of companies in the information technology industry or sector. The components of the Underlying Index are likely to change over time.
If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).
iShares® is a registered trademark of BlackRock Fund Advisors and its affiliates.
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