# EDGAR Filing Document

**Accession Number:** 0001221845
**File Stem:** 0001193125-25-228015
**Filing Date:** 2025-10
**Character Count:** 5894
**Document Hash:** a7774a85c65769cfff9501210e60e6e4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-228015.hdr.sgml**: 20251002

**ACCESSION NUMBER**: 0001193125-25-228015

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251002

**DATE AS OF CHANGE**: 20251002

**EFFECTIVENESS DATE**: 20251002

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BLACKROCK ALLOCATION TARGET SHARES
- **CENTRAL INDEX KEY:** 0001221845

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-109980
- **FILM NUMBER:** 251368165

**BUSINESS ADDRESS:**
- **STREET 1:** 100 BELLEVUE PARKWAY
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809
- **BUSINESS PHONE:** 800-441-7762

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

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BLACKROCK BOND ALLOCATION TARGET SHARES
- **DATE OF NAME CHANGE:** 20030306

## Series and Classes Contracts Data

### BATS: Corporate Credit Total Return Series (Series ID: S000001469)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000003891 | BATS: Corporate Credit Total Return Series | BRACX           |

### BATS: Mortgage Total Return Series (Series ID: S000001470)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000003892 | BATS: Mortgage Total Return Series | BRAMX           |

### BATS: Short Duration Taxable Total Return Series (Series ID: S000001471)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000003893 | BATS: Short Duration Taxable Total Return Series | BRASX           |

### BATS: Interest Rate Hedge Series (Series ID: S000011985)

| Class ID   | Class Name                       | Ticker Symbol   |
|:---|:---|:---|
| C000032703 | BATS: Interest Rate Hedge Series | BATPX           |

### BATS: High Income Municipal Series (Series ID: S000046220)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000144517 | BATS: High Income Municipal Series | BATEX           |

### BATS: Securitized Total Return Series (Series ID: S000047014)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000146955 | BATS: Securitized Total Return Series |  |

### BATS: Short Term Municipal Income Series (Series ID: S000071703)

| Class ID   | Class Name                               | Ticker Symbol   |
|:---|:---|:---|
| C000227189 | BATS: Short Term Municipal Income Series |  |

October 2, 2025

VIA ELECTRONIC FILING

Securities and Exchange Commission

100 F Street, NE

Judiciary Plaza

Washington, DC 20549

Attention: Division of Investment Management

---

| | |
|:---|:---|
|  Re: | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BlackRock Allocation Target Shares |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: Securitized Total Return Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: Corporate Credit Total Return Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: High Income Municipal Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: Mortgage Total Return Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: Interest Rate Hedge Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: Short Duration Taxable Total Return Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;BATS: Short Term Municipal Income Series |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Post-Effective Amendment No. 63 under the Securities Act of 1933 |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and Amendment No. 65 under the Investment Company Act of 1940 |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;to Registration Statement on Form N-1A |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>(File No. 333-109980 and File No. 811-21457)</u> |

---

Ladies and Gentlemen:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the "1933 Act"), BlackRock Allocation Target Shares (the "Fund") hereby certifies that:

(1) the form of Prospectus and Statement of Additional Information that would have been filed pursuant to Rule 497(c) under the 1933 Act would not have differed from that contained in Post-Effective Amendment No. 63 to the Fund's Registration Statement on Form N-1A; and

(2) the text of Post-Effective Amendment No. 63 to the Fund's Registration Statement on Form N-1A was filed electronically with the Securities and Exchange Commission on October 1, 2025.

Sincerely,

---

| |
|:---|
|  BlackRock Allocation Target Shares |
| /s Janey Ahn |
|  Janey Ahn |
|  Secretary of the Fund |

---