# EDGAR Filing Document

**Accession Number:** 0001804196
**File Stem:** 0001193125-25-154743
**Filing Date:** 2025-7
**Character Count:** 7030
**Document Hash:** cbbb5216757a5d862eaa2bc3ed061ad1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-154743.hdr.sgml**: 20250702

**ACCESSION NUMBER**: 0001193125-25-154743

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250702

**DATE AS OF CHANGE**: 20250702

**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:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23511
- **FILM NUMBER:** 251100006

**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
**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:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-236575
- **FILM NUMBER:** 251100005

**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 Securitized Income Active ETF (Series ID: S000092376)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000260348 | iShares Securitized Income Active ETF |  |

**As filed with the U.S. Securities and Exchange Commission on July 2, 2025** 

**Securities Act File No. 333-236575** 

**Investment Company Act File No. 811-23511** 

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM N-1A** 

---

| | |
|:---|:---|
|  **REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933** | ☒ |
|  **Pre-Effective Amendment No.** | ☐ |
|  **Post-Effective Amendment No. 64** | ☒ |
|  **and/or** |  |
|  **REGISTRATION STATEMENT UNDER THE** |  |
|  **INVESTMENT COMPANY ACT OF 1940** | ☐ |
|  **Amendment No. 66** | ☒ |
|  **(Check appropriate box or boxes)** |  |

---

**BLACKROCK ETF TRUST II** 

**(Exact Name of Registrant as Specified in Charter)** 

**100 Bellevue Parkway, Wilmington, Delaware 19809** 

**(Address of Principal Executive Office)** 

**Registrant's Telephone Number, including Area Code: (800) 441-7762** 

**John M. Perlowski** 

**BLACKROCK ETF TRUST II** 

**50 Hudson Yards** 

**New York, New York 10001** 

**(Name and Address of Agent for Service)** 

***Copies to:***

---

| | |
|:---|:---|
| **Counsel for the Fund:** |  |
| **Margery K. Neale, Esq.** | **Janey Ahn, Esq.** |
| **Elliot J. Gluck, Esq.** | **BlackRock Fund Advisors** |
| **Willkie Farr & Gallagher LLP** | **50 Hudson Yards** |
| **787 Seventh Avenue** | **New York, New York 10001** |
| **New York, New York 10019-6099** |  |

---

**Continuous** 

**(Approximate Date of Proposed Offering)** 

It is proposed that this filing will become effective:

☐ immediately upon filing pursuant to paragraph (b)

☒ on July 22, 2025 pursuant to paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)(1)

☐ on (date) pursuant to paragraph (a)(1)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ on (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

☒ This post-effective amendment designates a new effective date for a previously filed post-effective
amendment.

Title of Securities Being Registered: Shares of Beneficial Interest, no par value.

This filing relates solely to iShares Securitized Income Active ETF

------

**Explanatory Note** 

This Post-Effective Amendment No. 64 under the Securities Act of 1933, as amended (the "Securities Act") (Amendment No. 66 under the Investment Company Act of 1940, as amended (the "1940 Act")), to the registration statement on Form N-1A (the "Registration Statement") of BlackRock ETF Trust II (the "Registrant") is being filed pursuant to paragraph (b)(1)(iii) of Rule 485 under the Securities Act solely for the purpose of delaying, until July 22, 2025, the effectiveness of the registration statement for iShares Securitized Income Active ETF (the "Fund"), filed in [Post-Effective Amendment No. 54](http://www.sec.gov/Archives/edgar/data/1804196/000119312525039432/d811114d485apos.htm) on February 27, 2025, pursuant to paragraph (a) of Rule 485 under the Securities Act.

This Post-Effective Amendment No. 64 incorporates by reference the information contained in Parts A, B and C of Post-Effective Amendment No. 54 to the Registrant's Registration Statement.

------

**SIGNATURES** 

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all the requirements for the effectiveness of this Post-Effective Amendment to its Registration Statement pursuant to Rule 485(b)(1)(iii) under the Securities Act of 1933 and has duly caused this Post-Effective Amendment to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York and the State of New York, on July 2, 2025.

---

| | |
|:---|:---|
| BLACKROCK ETF TRUST II (REGISTRANT) | BLACKROCK ETF TRUST II (REGISTRANT) |
| ON BEHALF OF<br> ISHARES SECURITIZED INCOME ACTIVE ETF | ON BEHALF OF<br> ISHARES SECURITIZED INCOME ACTIVE ETF |
| By: | /s/ JOHN M. PERLOWSKI |
|  | **(John M. Perlowski,** |
|  | **President and Chief Executive Officer)** |

---

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to its Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

---

| | | |
|:---|:---|:---|
| Signature | Title | Date |
| /s/ JOHN M. PERLOWSKI<br> **(John M. Perlowski)** | Trustee, President and Chief Executive Officer (Principal Executive Officer) | July 2, 2025 |
| /s/ TRENT WALKER<br> **(Trent Walker)** | Chief Financial Officer (Principal Financial and Accounting Officer) | July 2, 2025 |
| CYNTHIA L. EGAN\*<br> **(Cynthia L. Egan)** | Trustee |  |
| LORENZO A. FLORES\*<br> **(Lorenzo A. Flores)** | Trustee |  |
| STAYCE D. HARRIS\*<br> **(Stayce D. Harris)** | Trustee |  |
| J. PHILLIP HOLLOMAN\*<br> **(J. Phillip Holloman)** | Trustee |  |
| R. GLENN HUBBARD\*<br> **(R. Glenn Hubbard)** | Trustee |  |
| W. CARL KESTER\*<br> **(W. Carl Kester)** | Trustee |  |
| CATHERINE A. LYNCH\*<br> **(Catherine A. Lynch)** | Trustee |  |
| ARTHUR P. STEINMETZ\*<br> **(Arthur P. Steinmetz)** | Trustee |  |
| ROBERT FAIRBAIRN\*<br> **(Robert Fairbairn)** | Trustee |  |

---

------

---

| | |
|:---|:---|
| \*By: /s/ JANEY AHN<br> **(Janey Ahn, Attorney-In-Fact)** | July 2, 2025 |

---