Quantum Computing Inc. (QUBT)
Nasdaq: QUBT · Services-Prepackaged Software · Hoboken, NJ · filing with the SEC since 2019
Who owns Quantum Computing Inc.
As filed with the SECHolders of 5% or more
2
Yuping Huang holds 10.3% of Common Stock, par value $0.0001 per share, as its SCHEDULE 13D/A filed May 28, 2026 says.
Directors and officers
10
report now, of 16 people on the record since 2019. 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 2 named at left.
Holders of 5% or moreshare of the class, as filed
Yuping Huang
SCHEDULE 13D/A · filed May 28, 2026 · Common Stock, par value $0.0001 per share
Blackrock, Inc.
SCHEDULE 13G/A · filed Jan 21, 2026 · Common Stock · 5.4% in Oct 17, 2025
Kenneth Griffin
SCHEDULE 13G · filed Oct 2, 2025 · Common stock, par value $0.0001 per share (the "Shares") · reported falling below 5%
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 7.51% in Jan 30, 2026
What QUBT reports owning in othersstakes of 5% or more, and other ties
9 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 2, 2026.
Insider tradesForm 4
3sales
0purchases
0sales on a scheduled plan
2people selling
$600,000sold, in dollars
$0bought, 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 window2 of 17 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Roberts Christopher Bruce | CFO and General Counsel | 2 | $600,000 | 0 | 0 | $0 |
| Begliarbekov Milan | Chief Operating Officer | 1 | $0 | 0 | 0 | $0 |