Companies / Horizon Quantum Holdings Ltd.

Horizon Quantum Holdings Ltd.

Nasdaq: HQCIK 2088256SINGAPORE

Financials · SGD

Revenue—

Net incomeSGD -107.9K

Total debt—

CashSGD 0

Diluted EPSSGD -107851.00

Shares outstanding1

1 shares outstanding

Ownership

Institutions	19577600.00%	195,776
Public float	0.00%	0

Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.

% of common shares outstanding. Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insider	% of shares	Shares
Gould GregChief Financial Officer	—	—
Harry L. YouDirector · 10% owner	—	—
Joseph Francis FitzsimonsCEOChief Executive Officer · Director · 10% owner	—	—
Lambert DanielleDirector	—	—
Oey Peter HenryDirector	—	—
Tan Si-HuiChief Science Officer	—	—

Holder	Value	% of shares
Hudson Bay Capital Management LP	$1.41M	16044100.00%
The K2 Principal Fund, L.P.	$943.8K	3400000.00%
BlackRock, Inc.	$37.1K	133500.00%

What insiders are doing in this stock (Form 4).

Date	Actor	Action	Security	Value	Shares Δ	Position after	Impact
Mar 19, 2026	Lambert Danielle Director	Buy	Class A Ordinary Shares	$1000.0K	+85K	84,602 8460200.00% of shares	high
Mar 19, 2026	Tan Si-Hui Executive	Grant	Stock Option (Right to Buy)	—	+500K	500,000 50000000.00% of shares	low
Mar 19, 2026	Gould Greg Executive	Grant	Stock Option (Right to Buy)	—	+285K	285,300 28530000.00% of shares	low
Mar 19, 2026	Joseph Francis Fitzsimons CEO	Grant	Class B Ordinary Shares	—	+19.7M	19,744,585 1974458500.00% of shares	low
Mar 19, 2026	Harry L. You Director	Grant	Warrants	—	+2.9M	2,884,660 288466000.00% of shares	low
Mar 19, 2026	Harry L. You Director	Grant	Class A Ordinary Shares	—	+1.2M	1,163,484 116348400.00% of shares	low

Schedule 13D / 13G

Filer	Stance	% of class	Shares	Date
Image Frame Investment (HK) Ltd	Passive13G	—	—	—

via CUSIP / OpenFIGI

Symbol	Type	Market	CUSIP	FIGI
HQ	—	—	Y4000A102	—