Quantinuum Inc. (QNT)
Nasdaq: QNT · Services-Computer Integrated Systems Design · filing with the SEC since 2026
Who owns Quantinuum Inc.
As filed with the SECHolders of 5% or more
5
Honeywell International Inc. holds 79.1% of Class A Common Stock, par value $0.0001 per share, as its SCHEDULE 13G filed Aug 13, 2026 says.
Directors and officers
15
report now, of 15 people on the record since 2026. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Honeywell International Inc.
SCHEDULE 13G · filed Aug 13, 2026 · Class A Common Stock, par value $0.0001 per share
Ilyas Khan
SCHEDULE 13G · filed Jun 22, 2026 · Class A common stock, par value $0.0001 per share
Capital World Investors
SCHEDULE 13G · filed Jul 6, 2026 · Common Stock
Kenneth Griffin
SCHEDULE 13G · filed Oct 6, 2026 · Class A common stock, par value $0.0001 per share (the "Shares")
Capital Research Global Investors
SCHEDULE 13G · filed Aug 12, 2026 · Common Stock
BlackRock Portfolio Management LLC
SCHEDULE 13G/A · filed Oct 27, 2026 · Class A Stock · reported falling below 5%, from 6.9% in Jul 17, 2026
What QNT reports owning in othersstakes of 5% or more, and other ties
Quantinuum Inc. reports no stake in another company in the record.
Insider tradesForm 4
0sales
11purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$24.7Mbought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window11 of 21 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Sharan Nitesh | Chief Financial Officer | 0 | $0 | 0 | 1 | $400,000 |
| Dehoff Kevin Scott | Chief Strategy Officer | 0 | $0 | 0 | 1 | $900,000 |
| Barron Hal | director | 0 | $0 | 0 | 1 | $15.0M |
| Bhatia Manish H | director | 0 | $0 | 0 | 1 | $1.2M |
| Branderiz Eric | director | 0 | $0 | 0 | 1 | $500,000 |
| Daugherty Paul R. | director | 0 | $0 | 0 | 1 | $200,000 |
| Denman Kenneth D | director | 0 | $0 | 0 | 1 | $800,000 |
| Jimenez Joseph | director | 0 | $0 | 0 | 1 | $4.0M |
| Kapur Vimal | director | 0 | $0 | 0 | 1 | $800,000 |
| Narang Prineha | director | 0 | $0 | 0 | 1 | $0 |
| Stepniak Michal | director | 0 | $0 | 0 | 1 | $800,000 |