NASDAQ · Technology

Horizon Quantum Holdings Ltd. (HQ)

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Price

$12.91

-6.52% on the day · November 10, 2026

52-week range $8.29 to $45.00

Market cap

$696.8M

Key facts about Horizon Quantum Holdings Ltd.

Net worth: Horizon Quantum Holdings Ltd. has a market value (market cap) of $696.8M at the latest share price. A company's "net worth" usually means this market value or the shareholders' equity on its balance sheet.
Latest report: The latest periodic report (annual report (foreign issuer), 20-F) was filed with the SEC on April 14, 2026 and covers the period to December 31, 2025. Open on SEC EDGAR

What Horizon Quantum Holdings Ltd. does

Horizon Quantum Holdings Ltd. is registered with the SEC under industry code SIC 7371 (Services-Computer Programming Services). Its shares trade on NASDAQ under the ticker HQ.

Earnings: every quarter and the next report date

Latest SEC filings

What Horizon Quantum Holdings Ltd. has filed recently, newest first. Each links to the original document on SEC EDGAR.

November 5, 2026
Activist stake changed SCHEDULE 13D/A
November 5, 2026
Foreign issuer update 6-K
August 14, 2026
Passive stake changed SCHEDULE 13G/A
August 4, 2026
Foreign issuer update 6-K
August 4, 2026
Foreign issuer update 6-K
August 3, 2026
Foreign issuer update 6-K
July 9, 2026
Activist stake (5% or more) SCHEDULE 13D
June 25, 2026
Passive stake (5% or more) SCHEDULE 13G
May 28, 2026
Employee stock plan registration S-8
May 5, 2026
Foreign issuer update 6-K

Recent insider filings (Forms 3, 4 and 144): 10, the latest on November 5, 2026. Insider transactions on SEC

Insider trades

What the people running Horizon Quantum Holdings Ltd. did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider bought or sold shares on the open market in the last 90 days. The 11 reported changes were pay in shares, option exercises, shares withheld for tax or gifts.

Bought (open market)

last 90 days

Sold

last 90 days

Date	Insider	What	Shares	Price	Value	Filing
November 3, 2026	You Harry L.Director, 10% owner	Other changeindirect	1,163,484	-	-	Form 4
November 3, 2026	You Harry L.Director, 10% owner	Other change	1,163,484	-	-	Form 4
September 12, 2026	Fitzsimons Joseph FrancisChief Executive Officer, Director, 10% owner	Exercised options	14,321	-	-	Form 4
September 12, 2026	Fitzsimons Joseph FrancisChief Executive Officer, Director, 10% owner	Other change	3,438	$15.22	$52.3K	Form 4
September 12, 2026	Tan Si-HuiChief Science Officer	Exercised options	5,728	-	-	Form 4
September 12, 2026	Tan Si-HuiChief Science Officer	Other change	2,991	$15.22	$45.5K	Form 4
September 12, 2026	Gould GregChief Financial Officer	Exercised options	3,437	-	-	Form 4
September 12, 2026	Gould GregChief Financial Officer	Other change	1,272	$15.22	$19.4K	Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns HQ

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

We have not read this company's Schedule 13D and 13G filings yet.

Largest institutional holders

No Form 13F positions imported for this company yet.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

6 insiders reported holding 1,317,711 shares in total, about $17M at the last price.

Holder	Shares	As of
You Harry L.Director, 10% owner	1,212,698	November 3, 2026
Lambert DanielleDirector	84,60284,602 held indirectly	March 19, 2026
Fitzsimons Joseph FrancisChief Executive Officer, Director, 10% owner	10,883	September 12, 2026
Tan Si-HuiChief Science Officer	6,3373,600 held indirectly	September 12, 2026
Gould GregChief Financial Officer	2,165	September 12, 2026
Fitzsimons Catherine MicheleCL and CO	1,026	September 12, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about HQ

What does Horizon Quantum Holdings Ltd. do?

Horizon Quantum Holdings Ltd. is a company in the Technology sector, listed on NASDAQ as HQ. Its shares trade on NASDAQ under the ticker HQ.

What is Horizon Quantum Holdings Ltd.'s net worth?

Horizon Quantum Holdings Ltd. has a market value (market cap) of $696.8M at the latest share price. A company's "net worth" usually means this market value or the shareholders' equity on its balance sheet.

When did Horizon Quantum Holdings Ltd. last report?

Its most recent periodic report is the annual report (foreign issuer) (20-F) filed on April 14, 2026. It covers the period to December 31, 2025. Its newest filing of any kind is the activist stake changed from November 5, 2026.

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Where the numbers come from

Financial figures are the values Horizon Quantum Holdings Ltd. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.