IonQ, Inc. (IONQ)
NYSE: IONQ · Services-Computer Integrated Systems Design · College Park, MD · filing with the SEC since 2020
Who owns IonQ, Inc.
As filed with the SECHolders of 5% or more
1
Morgan Stanley holds 5.6% of Common stock, as its SCHEDULE 13G filed Aug 13, 2026 says.
Directors and officers
16
report now, of 29 people on the record since 2020. 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 1 named at left.
Holders of 5% or moreshare of the class, as filed
Morgan Stanley
SCHEDULE 13G · filed Aug 13, 2026 · Common stock · 4.8% in Feb 12, 2026
Blackrock, Inc.
SCHEDULE 13G/A · filed Oct 27, 2026 · Common Stock · reported falling below 5%, from 5.3% in Jul 28, 2026
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What IONQ reports owning in othersstakes of 5% or more, and other ties
Horizon Quantum Holdings Ltd. HQ
SCHEDULE 13D · filed Apr 1, 2026 · Class A Ordinary Shares
Other ties the annual report names
Market Intelligence Business
A company bought · acquisition · Nov 2025 · owns, named in the 10-K filed Feb 25, 2026
Oxford Ionics Limited
A company bought · acquisition · Sep 2025 · owns, named in the 10-K filed Feb 25, 2026
Vector Atomic Inc
A company bought · acquisition · Sep 2025 · owns, named in the 10-K filed Feb 25, 2026
Capella Space Corp
A company bought · acquisition · Jun 2025 · owns, named in the 10-K filed Feb 25, 2026
Lightsynq Technologies Inc
A company bought · acquisition · May 2025 · owns, named in the 10-K filed Feb 25, 2026
ID Quantique SA
A company bought · acquisition · Apr 2025 · owns, named in the 10-K filed Feb 25, 2026
Qubitekk Federal LLC
A company bought · acquisition · owns, named in the 10-K filed Feb 25, 2026
21 subsidiaries in 9 countries, from the list filed with the 10-K filed Feb 25, 2026.
Insider tradesForm 4
12sales
2purchases
11sales on a scheduled plan
5people selling
$7.2Msold, in dollars
$200,000bought, 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 window6 of 44 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Alameddine Rima | Chief Revenue Officer | 1 | $4.7M | 1 | 0 | $0 |
| Chou Kathryn K. | director | 3 | $1.5M | 3 | 0 | $0 |
| Cardillo Robert T. | director | 3 | $500,000 | 3 | 0 | $0 |
| Raymond John W | director | 3 | $400,000 | 2 | 0 | $0 |
| Toledano Gabrielle B | director | 2 | $200,000 | 2 | 0 | $0 |
| Teuber William J Jr | director | 0 | $0 | 0 | 2 | $200,000 |