# EDGAR Filing Document

**Accession Number:** 0001859690
**File Stem:** 0001104659-25-090697
**Filing Date:** 2025-9
**Character Count:** 2033
**Document Hash:** 48c2c41f38c055c63191bf3550c234e9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-090697.hdr.sgml**: 20251209

**ACCESSION NUMBER**: 0001104659-25-090697

**CONFORMED SUBMISSION TYPE**: CORRESP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250917

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Arqit Quantum Inc.
- **CENTRAL INDEX KEY:** 0001859690
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** CORRESP

**BUSINESS ADDRESS:**
- **STREET 1:** 3 ORCHARD PLACE
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** SW1H 0BF
- **BUSINESS PHONE:** 44 203 91 70155

**MAIL ADDRESS:**
- **STREET 1:** 3 ORCHARD PLACE
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** SW1H 0BF

September 17, 2025

VIA EDGAR

United States Securities and Exchange Commission

Division of Corporation Finance

Office of Technology

100 F Street, NE

Washington, D.C. 20549

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| | |
|:---|:---|
| Attn: | Matthew Crispino |
| **Re:** | **Arqit Quantum Inc. (the "Company")** |
|  | **Registration Statement on Form F-3, as amended (File No. 333-289939)** |

---

Dear Mr. Crispino:

Pursuant to Rule 461 under the Securities Act of 1933, as amended, the Company hereby requests that the effective date of the above-referenced Registration Statement be accelerated so that it becomes effective at 4:00 p.m., Eastern Time, on September 19, 2025, or as soon thereafter as practicable.

The Company also requests that the Securities and Exchange Commission confirm the effective date and time of the Registration Statement to Company counsel, White & Case LLP, Attention: Monica Holden, by email to mholden@whitecase.com.

[*Signature page follows*]

---

| | |
|:---|:---|
| Sincerely, | Sincerely, |
| **ARQIT QUANTUM INC.** | **ARQIT QUANTUM INC.** |
| By: | /s/ Andrew Leaver |
| Name: | Andrew Leaver |
| Title: | Chief Executive Officer |

---

(*Signature Page to F-3 Acceleration Request*)