Horizon Quantum appoints new Chief Product Officer

Horizon Quantum Holdings Ltd. appointed Ms. Qian Yi Amanda Chew as Chief Product Officer, with the role becoming effective on August 17, 2026, following Board approval on July 28, 2026.

Rhea-AI Filing Summary

Horizon Quantum Holdings Ltd. appointed Ms. Qian Yi Amanda Chew as Chief Product Officer, with the role becoming effective on August 17, 2026, following Board approval on July 28, 2026. She will serve as Vice President of Product until the promotion takes effect.

Ms. Chew joined Horizon Quantum in November 2020 as Product Manager, was promoted to Director of Product in 2022 and to Vice President of Product in 2023. Previously, she held various roles at Microsoft Corp. from September 2014 to February 2020, most recently Senior Program Manager for Microsoft Visual Studio App Center. She holds a Bachelor of Science in mathematics and computer science from Brown University and executive certifications in design thinking, innovation, entrepreneurship, business strategy and finance from Stanford University, Wharton Executive Education and INSEAD Executive Education. This leadership change is incorporated by reference into the company’s registration statement on Form S-8 (File No. 333-296310).

Key Figures

CPO appointment date: July 28, 2026 CPO effective date: August 17, 2026 Horizon Quantum tenure start: November 2020 +2 more

5 metrics

CPO appointment date July 28, 2026 Date the Board appointed Ms. Chew Chief Product Officer

CPO effective date August 17, 2026 Date Ms. Chew’s promotion to Chief Product Officer takes effect

Horizon Quantum tenure start November 2020 Month and year Ms. Chew joined Horizon Quantum as Product Manager

Microsoft employment period September 2014 to February 2020 Period Ms. Chew held various roles at Microsoft Corp.

Form S-8 file number 333-296310 Registration statement into which this disclosure is incorporated by reference

Key Terms

foreign private issuer, Form S-8, Chief Product Officer, registration statement, +1 more

5 terms

foreign private issuer regulatory

"Form 6-K report of a <b>foreign private issuer</b> under U.S. rules"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

Form S-8 regulatory

"Incorporated by reference into a registration statement on <b>Form S-8</b>"

A Form S-8 is a U.S. Securities and Exchange Commission registration that lets a public company set aside shares for employee benefit plans and stock-based compensation. Think of it as opening a dedicated account that authorizes the company to issue or reserve stock for workers and directors; it matters to investors because it enables share dilution when those awards are granted or exercised and signals how management is compensated and incentivized.

Chief Product Officer financial

"Ms. Chew was appointed <b>Chief Product Officer</b> by the Board"

The chief product officer (CPO) is the executive who leads a company’s product strategy, overseeing what products are built, how they work, and how they meet customer needs. Think of the CPO as the head chef who designs the menu, coordinates the kitchen, and ensures dishes customers want are delivered — investors watch this role because strong product leadership drives sales, competitive advantage, and the company’s long-term growth potential.

registration statement regulatory

"Deemed incorporated into the company’s <b>registration statement</b> on Form S-8"

A registration statement is a formal document that companies file with a government agency to offer new shares of stock to the public. It provides essential information about the company's finances, operations, and risks, helping investors make informed decisions. Think of it as a detailed product description that ensures transparency and trust before buying into a company.

executive certifications other

"She has received <b>executive certifications</b> in design thinking and finance"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What executive change did Horizon Quantum Holdings (HQ) report in July 2026?

Horizon Quantum Holdings appointed Qian Yi Amanda Chew as Chief Product Officer, approved by the Board on July 28, 2026. Her promotion follows internal roles from Product Manager to Director and then Vice President of Product.

When does Ms. Qian Yi Amanda Chew’s Chief Product Officer role at HQ become effective?

Ms. Chew’s Chief Product Officer role becomes effective on August 17, 2026. Until that date, she continues to serve as Vice President of Product, a position she has held since 2023 after earlier promotions within the company.

What is Ms. Chew’s career background before becoming CPO at Horizon Quantum (HQ)?

Before becoming CPO, Ms. Chew joined Horizon Quantum in November 2020 as Product Manager and rose to Director and then Vice President of Product. Earlier, she worked at Microsoft Corp. from September 2014 to February 2020 in various product roles.

What is Ms. Chew’s educational background relevant to her new CPO role at HQ?

Ms. Chew holds a Bachelor of Science in mathematics and computer science from Brown University. She also completed executive certifications in design thinking, innovation, entrepreneurship, business strategy and finance from Stanford, Wharton Executive Education and INSEAD Executive Education.

How is this leadership change at Horizon Quantum (HQ) connected to its share-based plans?

The disclosure of Ms. Chew’s appointment is incorporated by reference into Horizon Quantum’s registration statement on Form S-8 (File No. 333-296310. This links the information to the company’s equity compensation or employee benefit arrangements covered by that registration statement.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/03/2026 - 04:05 PM Accepted by SEC EDGAR 08/03/2026 - 04:05 PM Learn about SEC filing dates

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16

OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of July 2026

Commission File Number: 001-43203

Horizon Quantum Holdings Ltd.

(Exact name of registrant as specified in its charter)

29 Media Cir., #05-22

Singapore, 138565

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒        Form 40-F ☐

INCORPORATION BY REFERENCE

This report on Form 6-K (the “Report”) shall be deemed to be incorporated by reference into registration statement on Form S-8 (File No. 333-296310) of Horizon Quantum Holdings Ltd. a public company limited by shares formed under the laws of the Republic of Singapore (“we,” “us,” “our,” or the “Company”), and shall be a part thereof from the date on which this Report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

INFORMATION CONTAINED IN THIS REPORT

On July 28, 2026, Ms. Qian Yi Amanda Chew was appointed Chief Product Officer (“CPO”) by the Board of Directors of the Company, with such appointment to become effective as of August 17, 2026.

Ms. Chew first joined the Company in November 2020 as our Product Manager, before being promoted to Director of Product in 2022, then to Vice President of Product in 2023, a position she will continue to hold until her promotion to CPO becomes effective. Prior to joining the Company, Ms. Chew held various positions at Microsoft Corp. from September 2014 to February 2020, including most recently the position of Senior Program Manager for Microsoft Visual Studio App Center. Ms. Chew holds a Bachelor of Science from Brown University in mathematics and computer science and has received executive certifications in design thinking, innovation, entrepreneurship, business strategy and finance from Stanford University, Wharton Executive Education, and INSEAD Executive Education.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Horizon Quantum Holdings Ltd.
	By:	/s/ Joseph Fitzsimons
	Name:	Joseph Fitzsimons
	Title:	Chief Executive Officer and Chairman

Date: August 3, 2026

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