# EDGAR Filing Document

**Accession Number:** 0002088256
**File Stem:** 0001213900-26-031619
**Filing Date:** 2026-3
**Character Count:** 5766
**Document Hash:** 245da9a3424e42232314f84c3dc7d88f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-031619.hdr.sgml**: 20260319

**ACCESSION NUMBER**: 0001213900-26-031619

**CONFORMED SUBMISSION TYPE**: 8-A12B

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260319

**DATE AS OF CHANGE**: 20260319

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Horizon Quantum Holdings Ltd.
- **CENTRAL INDEX KEY:** 0002088256
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** U0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43203
- **FILM NUMBER:** 26772775

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** ALICE@MEDIAOPOLIS
- **STREET 2:** 29 MEDIA CIRCLE #05-22
- **CITY:** SINGAPORE
- **PROVINCE COUNTRY:** U0
- **ZIP:** 138565
- **BUSINESS PHONE:** 6581015024

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** ALICE@MEDIAOPOLIS
- **STREET 2:** 29 MEDIA CIRCLE #05-22
- **CITY:** SINGAPORE
- **PROVINCE COUNTRY:** U0
- **ZIP:** 138565

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Horizon Quantum Holdings Pte. Ltd.
- **DATE OF NAME CHANGE:** 20251230

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Rose Holdco Pte. Ltd.
- **DATE OF NAME CHANGE:** 20250924

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM 8-A** 

**FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES** 

**PURSUANT TO SECTION 12(b) OR (g) OF** 

**THE SECURITIES EXCHANGE ACT OF 1934** 

**Horizon Quantum Holdings Ltd.** 

**(Exact name of registrant as specified in its charter)** 

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| | |
|:---|:---|
| **Singapore** | **Not Applicable** |
| **(State or incorporation or organization)** | **(IRS Employer Identification No.)** |

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**29 Media Cir. #05-22**

**Singapore, 138565**

**(Address of Principal Executive Offices)** 

**Securities to be registered pursuant to Section 12(b) of the Act:** 

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| | |
|:---|:---|
| **Title of each class to be so registered** | **Name of each exchange on which**<br> **each class is to be registered** |
| **Class A ordinary shares, no par value** | **The Nasdaq Stock Market LLC** |
| **Warrants, each exercisable for one Class A ordinary share at an exercise price of $11.50 per ordinary share** | **The Nasdaq Stock Market LLC** |

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If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates: 333-292737

Securities to be registered pursuant to Section 12(g) of the Act: None

**INFORMATION REQUIRED IN REGISTRATION STATEMENT** 

**Item 1. Description of Registrant's Securities to be Registered.** 

The securities to be registered hereby are the Class A ordinary shares, no par value ("***Horizon Ordinary Shares***") of Horizon Quantum Holdings Ltd. (Company Registration No. 202537774K) ("***Horizon***") and the former public and private warrants of dMY Squared Technology Group, Inc., a Massachusetts corporation, that have been exchanged into warrants, each warrant exercisable for one Horizon Ordinary Share at an exercise price of $11.50 per share ("***Horizon Warrants***").

The description of the Horizon Ordinary Shares and Horizon Warrants set forth under the captions "Description of Holdco Securities" and "Description of Holdco Securities -- Warrants" in the proxy statement/prospectus forming a part of the Registration Statement on [Form F-4](http://www.sec.gov/Archives/edgar/data/2088256/000121390026009801/ea0261018-05.htm), as amended (Registration No. 333-292737), as initially filed with the Securities and Exchange Commission on January 14, 2026 and as amended from time to time (the "Registration Statement"), including any form of prospectus contained therein pursuant to Rule 424(b) under the Securities Act of 1933, as amended, to which this Form 8-A relates, is incorporated herein by reference. Any form of prospectus or prospectus supplement to the Registration Statement that includes such descriptions and that is subsequently filed is also incorporated by reference herein.

The Horizon Ordinary Shares and the Horizon Warrants to be registered hereunder have been approved for listing on The Nasdaq Stock Market LLC under the symbols "HQ" and "HQWWW," respectively.

**Item 2. Exhibits.** 

Pursuant to the Instructions as to Exhibits for Form 8-A, no exhibits are required to be filed herewith or incorporated by reference, because no other securities of Horizon are being registered on the Nasdaq Stock Market LLC and the securities being registered hereby are not being registered pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended.

**SIGNATURES** 

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

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| | | |
|:---|:---|:---|
| Date: March 19, 2026 | **Horizon Quantum Holdings Ltd.** | **Horizon Quantum Holdings Ltd.** |
|  | By: | /s/ Joseph Fitzsimons |
|  | Name: | Joseph Fitzsimons |
|  | Title: | Chief Executive Officer |

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