# EDGAR Filing Document

**Accession Number:** 0001966494
**File Stem:** 0001999371-25-011781
**Filing Date:** 2025-8
**Character Count:** 2255
**Document Hash:** 72a43c67a72f5c3b6a686db6dbf35d21
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-25-011781.hdr.sgml**: 20250821

**ACCESSION NUMBER**: 0001999371-25-011781

**CONFORMED SUBMISSION TYPE**: AW

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250821

**DATE AS OF CHANGE**: 20250820

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CARGO Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001966494
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 844080422
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** AW

**SEC ACT:**
- **SEC FILE NUMBER:** 333-280249
- **FILM NUMBER:** 251238021

**BUSINESS ADDRESS:**
- **STREET 1:** 835 INDUSTRIAL ROAD, SUITE 400
- **CITY:** SAN CARLOS
- **STATE:** CA
- **ZIP:** 94070
- **BUSINESS PHONE:** 650-499-8950

**MAIL ADDRESS:**
- **STREET 1:** 835 INDUSTRIAL ROAD, SUITE 400
- **CITY:** SAN CARLOS
- **STATE:** CA
- **ZIP:** 94070

August 21, 2025

VIA EDGAR

Securities and Exchange Commission 100 F Street, N.E.

Washington, D.C. 20549

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| | |
|:---|:---|
| Re: | CARGO Therapeutics, Inc. (CIK 0001966494) Pre-Effective Amendment to Registration Statement 333-280249 |
|  | Pre-Effective Amendment to Registration Statement 333-280249 (Accession No. 0001999371-25-011667) |
|  | Pre-Effective Amendment to Registration Statement 333-283661 Form AW Application for Withdrawal (Accession No. 0001999371-25-011666) |

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Ladies and Gentlemen:

Pursuant to Rule 477 promulgated under the Securities Act of 1933, as amended (the "Securities Act"), CARGO Therapeutics, Inc., a Delaware limited liability company, hereby respectfully requests the immediate withdrawal of the Amendments to the Registration Statements referred to above (the "Amendments") filed on August 19, 2025, together with all exhibits thereto.

The Amendments were incorrectly tagged as an S-3/A filing instead of a POS AM filing. A correctly tagged submission will be filed shortly.

Thank you for your assistance in this matter.

Very truly yours,

---

| | |
|:---|:---|
| CARGO Therapeutics, Inc. | CARGO Therapeutics, Inc. |
| By: | ![](cargo_001.jpg) |
| Name: | Michael Hearne |
| Title: | Chief Financial Officer |

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