IONQ
IONQ · NYSE
Who owns IONQ
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 27.2% of IONQ’s shares.
- Morgan Stanley Investment Management Inc. (US)5.4%
- BlackRock Institutional Trust Company, N.A.4.3%
- Vanguard Capital Management, LLC4.2%
- Vanguard Portfolio Management, LLC3.7%
- Next 6 largest institutions9.6%
- All other shareholders72.8%
| Holder | Shares | % of shares |
|---|---|---|
| Morgan Stanley Investment Management Inc. (US) | 20.30M | 5.44% |
| BlackRock Institutional Trust Company, N.A. | 16.16M | 4.33% |
| Vanguard Capital Management, LLC | 15.60M | 4.18% |
| Vanguard Portfolio Management, LLC | 13.96M | 3.74% |
| State Street Investment Management (US) | 8.12M | 2.18% |
| UBS Financial Services, Inc. | 7.72M | 2.07% |
| Geode Capital Management, L.L.C. | 6.46M | 1.73% |
| Norges Bank Investment Management (NBIM) | 5.19M | 1.39% |
| Morgan Stanley & Co. LLC | 4.16M | 1.11% |
| BofA Global Research (US) | 4.03M | 1.08% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 11.51M | 3.08% |
| Vanguard Small-Cap Index Fund | 7.67M | 2.05% |
| Statens Pensjonsfond Utland | 4.52M | 1.21% |
| Vanguard Small-Cap Growth Index Fund | 4.45M | 1.19% |
| Vanguard Extended Market Index Fund | 4.30M | 1.15% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $791.05K (5 trades) of IONQ on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Singh Inder M | Tax withholding | 6.27K | $232.65K |
| de Masi Niccolo | Tax withholding | 16.12K | $597.98K |
| DACIER PAUL T | Tax withholding | 4.46K | $165.32K |
| Raymond John w | Sale | 2.41K | $89.56K |
| Baxter Timothy E | Award | 5.54K | — |
| Ball Eric R. | Award | 5.54K | — |
| Chou Kathryn K. | Sale | 2.76K | $151.69K |
| Raymond John w | Sale | 3.81K | $209.86K |
| TOLEDANO GABRIELLE B | Sale | 2.76K | $151.66K |
| Scannell William F | Award | 4.53K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Greg SteubeHouse | Purchase | $1K–$15K | Mar 18, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 40.64M
- Days to cover
- 1.41
- % of shares outstanding
- 10.89%
- Average daily volume
- 28.76M
- Change since last report
- +0.4%
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