# EDGAR Filing Document

**Accession Number:** 0001100663
**File Stem:** 0001193125-25-220667
**Filing Date:** 2025-9
**Character Count:** 3156
**Document Hash:** b387e9f43ae51170ff9697ebcc9972db
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-220667.hdr.sgml**: 20250926

**ACCESSION NUMBER**: 0001193125-25-220667

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 11

**FILED AS OF DATE**: 20250926

**DATE AS OF CHANGE**: 20250926

**EFFECTIVENESS DATE**: 20250926

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** iSHARES TRUST
- **CENTRAL INDEX KEY:** 0001100663

**ORGANIZATION NAME:**
- **EIN:** 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:** 251350991

**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

## Series and Classes Contracts Data

### iShares Core Total USD Bond Market ETF (Series ID: S000045644)

---

|  |  |  |
|:---|:---|:---|
| Class Name                             | Ticker Symbol | Class ID   |
| iShares Core Total USD Bond Market ETF | IUSB          | C000141927 |

---

### iShares ESG Advanced Total USD Bond Market ETF (Series ID: S000068817)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| iShares ESG Advanced Total USD Bond Market ETF | EUSB          | C000219898 |

---

## Series and Classes Contracts Data

### iShares Core Total USD Bond Market ETF (Series ID: S000045644)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000141927 | iShares Core Total USD Bond Market ETF | IUSB            |

### iShares ESG Advanced Total USD Bond Market ETF (Series ID: S000068817)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000219898 | iShares ESG Advanced Total USD Bond Market ETF | EUSB            |

?xml version='1.0' encoding='ASCII'? Form 497

------

## iShares<sup>®</sup>

#### iShares Trust

#### Supplement dated September 26, 2025

#### to the currently effective Summary Prospectus, Prospectus, and

#### Statement of Additional Information ("SAI") for the

#### iShares ESG Advanced Total USD Bond Market ETF (EUSB) and

#### iShares Core Total USD Bond Market ETF (IUSB)

#### (each, a "Fund" and collectively, the "Funds")
**Effective October 31, 2025, each Fund's name will change as follows:** 

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;**Current Fund Name** | **New Fund Name** |
| &nbsp;&nbsp;&nbsp;iShares ESG Advanced Total USD Bond Market ETF | iShares ESG Advanced Universal USD Bond ETF |
| &nbsp;&nbsp;&nbsp;iShares Core Total USD Bond Market ETF | iShares Core Universal USD Bond ETF |

---

If you have any questions, please call 1-800-iShares (1-800-474-2737).

iShares<sup>®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.

IS-A-EIUSBnc-0925

#### PLEASE RETAIN THIS SUPPLEMENT

#### FOR FUTURE REFERENCE