# EDGAR Filing Document

**Accession Number:** 0001804196
**File Stem:** 0001193125-25-153083
**Filing Date:** 2025-7
**Character Count:** 3753
**Document Hash:** d23c2136d3f472e682ab396512b50a7d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-153083.hdr.sgml**: 20250701

**ACCESSION NUMBER**: 0001193125-25-153083

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250701

**DATE AS OF CHANGE**: 20250630

**EFFECTIVENESS DATE**: 20250701

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BlackRock ETF Trust II
- **CENTRAL INDEX KEY:** 0001804196

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0731

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-236575
- **FILM NUMBER:** 251093724

**BUSINESS ADDRESS:**
- **STREET 1:** 100 BELLEVUE PARKWAY
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809
- **BUSINESS PHONE:** 800 882 0052

**MAIL ADDRESS:**
- **STREET 1:** 100 BELLEVUE PARKWAY
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809

## Series and Classes Contracts Data

### iShares Large Cap Moderate Buffer ETF (Series ID: S000080645)

---

|  |  |
|:---|:---|
| Class Name                            | Class ID   |
| iShares Large Cap Moderate Buffer ETF | C000243161 |

---

### iShares Large Cap Deep Buffer ETF (Series ID: S000080646)

---

|  |  |
|:---|:---|
| Class Name                        | Class ID   |
| iShares Large Cap Deep Buffer ETF | C000243162 |

---

## Series and Classes Contracts Data

### iShares Large Cap Moderate Buffer ETF (Series ID: S000080645)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000243161 | iShares Large Cap Moderate Buffer ETF |  |

### iShares Large Cap Deep Buffer ETF (Series ID: S000080646)

| Class ID   | Class Name                        | Ticker Symbol   |
|:---|:---|:---|
| C000243162 | iShares Large Cap Deep Buffer ETF |  |

**BLACKROCK ETF TRUST II** 

iShares Large Cap Moderate Buffer ETF

iShares Large Cap Deep Buffer ETF

(each, a "Fund")

**Supplement dated July 1, 2025 to each Fund's** 

**Summary Prospectus, Prospectus and Statement of Additional Information, each dated November 27, 2024,** 

**as supplemented to date** 

***The information in this supplement supersedes the information in the supplement dated March 31, 2025.***

As described in detail in each Fund's Summary Prospectus, Prospectus and Statement of Additional Information, the Fund pursues an options strategy that seeks to provide the Fund with exposure to the share price return of the Underlying ETF up to the Approximate Cap, while seeking to provide downside protection against Underlying ETF losses through an Approximate Buffer and lower volatility over each Hedge Period. Capitalized terms have the meanings ascribed to them in each Fund's Summary Prospectus, Prospectus and Statement of Additional Information.

Each Fund will commence a new Hedge Period beginning on July 1, 2025 and ending on September 30, 2025. The Approximate Cap for each Fund for the new Hedge Period is set forth in the table below.

---

| | | | |
|:---|:---|:---|:---|
| **Fund** | **Ticker** | **Approximate Cap<br>(Gross of the Unitary<br>Management Fee)** | **Approximate Cap<br>(Net of Unitary<br>Management Fee)** |
| iShares Large Cap Moderate Buffer ETF | IVVM | 105.52% | 105.40% |
| iShares Large Cap Deep Buffer ETF | IVVB | 105.65% | 105.53% |

---

Each Fund's Summary Prospectus, Prospectus and Statement of Additional Information are amended to revise all references to the dates associated with the Hedge Period ended June 30, 2025 to reflect those of the new Hedge Period and to the amount of the Approximate Cap to reflect the amount of the applicable Approximate Cap set forth in the table above.

**Shareholders should retain this Supplement for future reference.** 

PR2SAI-BUFF2-0625SUP