# EDGAR Filing Document

**Accession Number:** 0001221845
**File Stem:** 0001193125-25-249980
**Filing Date:** 2025-10
**Character Count:** 2366
**Document Hash:** e068f25a8af21a9e591d2e05e992b95a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-249980.hdr.sgml**: 20251024

**ACCESSION NUMBER**: 0001193125-25-249980

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251024

**DATE AS OF CHANGE**: 20251024

**EFFECTIVENESS DATE**: 20251024

**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:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-109980
- **FILM NUMBER:** 251416347

**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: Securitized Total Return Series (Series ID: S000047014)

---

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

---

## Series and Classes Contracts Data

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

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

**BLACKROCK ALLOCATION TARGET SHARES** 

BATS: Securitized Total Return Series (formerly known as "BATS: Series A Portfolio")

**(the "Fund")** 

**Supplement dated October 24, 2025** 

**to the Statement of Additional Information of the Fund (the "SAI"), dated October 1, 2025, as amended or supplemented to date** 

**Effective immediately, the following change is made to the Fund's SAI:** 

**The chart listing investments and investment strategies in the section of the Fund's SAI entitled "I. Investment Objectives and Policies" as it relates to the Fund is amended in relevant part to reflect the following:** 

---

| | |
|:---|:---|
| | **BATS:**<br> **Securitized<br>Total**<br> **Return Series** |
| **Corporate Loans** | X |
| Direct Lending | X |

---

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

SAI-BATSTRS-1025SUP