# EDGAR Filing Document

**Accession Number:** 0001100663
**File Stem:** 0001193125-26-117990
**Filing Date:** 2026-3
**Character Count:** 3896
**Document Hash:** cec20c76442b61a794309cbb614d8766
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-117990.hdr.sgml**: 20260323

**ACCESSION NUMBER**: 0001193125-26-117990

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 10

**FILED AS OF DATE**: 20260323

**DATE AS OF CHANGE**: 20260320

**EFFECTIVENESS DATE**: 20260323

**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:** 26779365

**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 U.S. Infrastructure ETF (Series ID: S000061314)

---

|  |  |  |
|:---|:---|:---|
| Class Name                      | Ticker Symbol | Class ID   |
| iShares U.S. Infrastructure ETF | IFRA          | C000198491 |

---

## Series and Classes Contracts Data

### iShares U.S. Infrastructure ETF (Series ID: S000061314)

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000198491 | iShares U.S. Infrastructure ETF | IFRA            |

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

------

## iShares<sup>®</sup>

#### iShares Trust

#### Supplement dated March 23, 2026

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

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

#### iShares U.S. Infrastructure ETF (IFRA)

#### (the "Fund")
**The following changes to the Fund's Prospectus, Summary Prospectus and SAI shall take effect on March 23, 2026:** 

The applicable text in the 'Principal Investment Strategies' section of the Summary Prospectus and Prospectus for the Fund and the section of the SAI entitled 'The NYSE<sup>®</sup> FactSet<sup>®</sup> U.S. Infrastructure Index' is revised as follows:

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;**Current** | **New** |
| &nbsp;&nbsp;&nbsp;Category 1 companies in the Underlying Index include companies in construction and engineering services, machineries and materials. | Category 1 companies in the Underlying Index include companies in construction and engineering services, machineries, materials, and certain railroad transportation industries. |
| &nbsp;&nbsp;&nbsp;Category 2 companies in the Underlying Index include companies in energy transportation and storage, railroad transportation, and utilities. At the time of inclusion, eligible companies must derive 50% or more of their annual revenues from the U.S. The Underlying Index applies an equal weighting to Category 1 and Category 2, and within each category, an equal weighting is also applied to all individual securities. | Category 2 companies in the Underlying Index include companies in energy transportation and storage, and utilities. At the time of inclusion, eligible companies must derive 50% or more of their annual revenues from the U.S. The Underlying Index applies a 50% weighting to Category 1 and Category 2, and within each category, constituent weights are determined based on security-level float-adjusted market capitalization, subject to an individual constituent cap of 4%, with any excess weight redistributed among the remaining constituents in their respective Category on a pro rata basis. |

---

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-IFRA-0326

#### PLEASE RETAIN THIS SUPPLEMENT

#### FOR FUTURE REFERENCE