# EDGAR Filing Document

**Accession Number:** 0001804196
**File Stem:** 0001193125-25-143774
**Filing Date:** 2025-6
**Character Count:** 3559
**Document Hash:** 27c15dd7aeff1c4616328daf276c4915
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-143774.hdr.sgml**: 20250623

**ACCESSION NUMBER**: 0001193125-25-143774

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250623

**DATE AS OF CHANGE**: 20250620

**EFFECTIVENESS DATE**: 20250623

**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:** 251062490

**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 June 23, 2025 to each Fund's** 

**Summary Prospectus, Prospectus and Statement of Additional Information ("SAI"), each dated November 27,** 

**2024, as supplemented to date** 

As described in the Fund's Prospectus and SAI, each Fund seeks to provide certain outcomes for an investment held over an entire Hedge Period (the "Applicable Period"). Capitalized terms have the meanings ascribed to them in each Fund's Prospectus and SAI.

The table below shows an estimated range for the Approximate Cap for each Fund's next Applicable Period as estimated by the Fund's investment adviser using information available as of the date of this supplement. The estimate is unaudited, subject to certain limitations and subject to change, and each Fund is under no obligation to, and does not expect to, update the estimate. The final Approximate Cap for the next Applicable Period, which may be more or less than the estimated ranges, will be included in a supplement filing following the close of business on the last business day of the current Applicable Period.

---

| | | |
|:---|:---|:---|
| **Fund (Ticker)** | **Next Applicable<br>Period** | **Estimated Approximate Cap Range** |
| iShares Large Cap Moderate Buffer ETF (IVVM) | July 1, 2025 to September 30, 2025 | 4.51% - 7.01% (gross of management fee)<br> 4.39% - 6.89% (net of management fee) |
| iShares Large Cap Deep Buffer ETF (IVVB) | July 1, 2025 to September 30, 2025 | 5.04% - 6.66% (gross of management fee)<br> 4.92% - 6.53% (net of management fee) |

---

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

PR2SAI-BUFF-0625SUP