Horizon Quantum CEO granted 229K RSUs

Horizon Quantum’s CEO reported RSU vesting, partial cash settlement to the company, and a large new RSU grant subject to quarterly vesting.

Rhea-AI Filing Summary

Horizon Quantum Holdings Ltd. (HQ) reported that Chief Executive Officer and director Joseph Francis Fitzsimons had 14,321 RSUs vest on September 12, 2026, which were converted into the same number of Class A ordinary shares. A portion of these vested units, 3,438 shares, was settled in cash through a disposition to the company at $15.22 per share, based on the last reported sales price on September 11, 2026. Separately, on June 12, 2026, he received a grant of 229,148 unvested RSUs that vest in sixteen approximately equal quarterly installments, subject to continued employment. No Rule 10b5-1 trading plan is reported for these transactions.

Insider Trade Summary

14,321 shares exercised/converted

Exercise 4 txns

Insider Fitzsimons Joseph Francis

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit F2, F1	14,321	$0.00	$0.00
Exercise	Class A Ordinary Shares F1, F2	14,321	$0.00	$0.00
Disposition	Class A Ordinary Shares F1, F3	3,438	$15.22	$52K
Grant/Award	Restricted Stock Unit F2	229,148	$0.00	$0.00

Holdings After Transaction: Restricted Stock Unit — 443,975 contracts (Direct); Class A Ordinary Shares — 10,883 shares (Direct)

Footnotes (3)

1. F1. On September 12, 2026, 14,321 of Dr. Fitzsimons's RSU's vested.
2. F2. On June 12, 2026 (the "Grant Date"), Dr. Fitzsimons was granted a total of 229,148 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration. The RSUs granted to Dr. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Dr. Fitzsimons's continued employment with the Company through each applicable vesting date.
3. F3. The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs which vested on September 12, 2026, at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares on September 11, 2026.

Key Figures

RSUs vested: 14,321 units Shares settled in cash to issuer: 3,438 shares Cash settlement price per share: $15.22 per share +3 more

6 metrics

RSUs vested 14,321 units RSUs vested and converted into Class A ordinary shares on September 12, 2026

Shares settled in cash to issuer 3,438 shares Portion of vested RSUs settled in cash via disposition to the company on September 12, 2026

Cash settlement price per share $15.22 per share Price per ordinary share for cash settlement, equal to last reported sales price on September 11, 2026

New RSU grant 229,148 units Unvested RSUs granted to the CEO on June 12, 2026

RSU vesting installments 16 installments New RSU grant vests in sixteen approximately equal quarterly installments

Underlying shares per RSU 1 Class A ordinary share Each RSU represents a contingent right to receive one Class A ordinary share upon vesting

Key Terms

Restricted Stock Unit, vesting, disposition to the Company, last reported sales price

4 terms

Restricted Stock Unit financial

"On June 12, 2026, Dr. Fitzsimons was granted a total of 229,148 unvested restricted stock units"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

vesting financial

"The RSUs granted to Dr. Fitzsimons vest in sixteen approximately equal installments"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

disposition to the Company financial

"The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs"

last reported sales price financial

"at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares"

FAQ

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

What equity transactions did HQ’s CEO report on September 12, 2026?

He reported 14,321 RSUs vesting and converting into Class A ordinary shares, with 3,438 of those shares settled in cash through a disposition to Horizon Quantum Holdings Ltd. at $15.22 per share, reflecting the last reported sales price on September 11, 2026.

What new RSU award did HQ grant to its CEO on June 12, 2026?

On June 12, 2026, Horizon Quantum granted the CEO 229,148 unvested RSUs, each representing a contingent right to receive one Class A ordinary share for no consideration. These RSUs vest in sixteen approximately equal quarterly installments, conditioned on his continued employment through each vesting date.

How many HQ shares from the CEO’s vested RSUs were settled in cash?

A total of 3,438 Class A ordinary shares from the RSUs that vested on September 12, 2026 were settled in cash through a disposition to Horizon Quantum Holdings Ltd. at a price of $15.22 per share, equal to the last reported sales price on September 11, 2026.

Were the HQ CEO’s reported transactions under a Rule 10b5-1 trading plan?

No. The filing indicates that no Rule 10b5-1 trading plan is associated with these transactions, meaning they are not affirmed as executed under a pre-arranged trading plan under Rule 10b5-1.

What type of security are the HQ RSUs reported by the CEO?

The RSUs are restricted stock units, each providing a contingent right to receive one Class A ordinary share of Horizon Quantum Holdings Ltd. for no consideration upon vesting, subject to the CEO’s continued employment through each applicable vesting date.

How frequently do the newly granted HQ RSUs vest for the CEO?

The 229,148 RSUs granted on June 12, 2026 vest in sixteen approximately equal installments on successive quarterly anniversaries of the grant date, contingent on the CEO remaining employed through each vesting date.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/15/2026 - 09:30 PM Accepted by SEC EDGAR 09/15/2026 - 09:30 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Fitzsimons Joseph Francis

(Last) (First) (Middle)

C/O HORIZON QUANTUM HOLDINGS LTD.

29 MEDIA CIR. #05-22

(Street)

SINGAPORE 138565

(City) (State) (Zip)

SINGAPORE

(Country)

2. Issuer Name and Ticker or Trading Symbol
Horizon Quantum Holdings Ltd. [ HQ ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Ordinary Shares	09/12/2026(1)		M		14,321(1)	A	$0(2)	14,321	D
Class A Ordinary Shares	09/12/2026(1)		D		3,438(3)	D	$15.22(3)	10,883	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	$0(2)	06/12/2026		A		229,148(2)		(2)	(2)	Class A Ordinary Shares	229,148(2)	$0	229,148	D
Restricted Stock Unit	$0(2)	09/12/2026		M		14,321(1)		(1)(2)	(2)	Class A Ordinary Shares	14,321	$0	214,827	D

Explanation of Responses:

1. On September 12, 2026, 14,321 of Dr. Fitzsimons's RSU's vested.

2. On June 12, 2026 (the "Grant Date"), Dr. Fitzsimons was granted a total of 229,148 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration. The RSUs granted to Dr. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Dr. Fitzsimons's continued employment with the Company through each applicable vesting date.

3. The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs which vested on September 12, 2026, at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares on September 11, 2026.

	/s/ Joseph Francis Fitzsimons	09/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)