VANGUARD GROUP INC
Rank #1
9.27%
- Shares
- 34.77M
- Change
- +5.42M
- Change %
- +18.46%
- Filing
- Dec 31, 2025
Increased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NYSE · TECHNOLOGY · Holders
IONQ Inc (IONQ) Institutional Ownership & Insider Trading History
Top IONQ institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Price Jun 15, 9:59 AM EDT · Statements Mar 30, 8:00 PM EDT
Source timingDetailsHide
Data freshness
Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
Last traded •
Source: Market data provider
Fundamentalsevery 1 day
Provider checked •
Source: Market data provider
Analystevery 1 day
Provider checked •
Source: Market data provider
Newsevery 4 hr
Latest item •
Source: Market data provider
Ownership read
IONQ insider sentiment: Net selling.
VANGUARD GROUP INC is the largest loaded institutional holder. 72 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
IONQ
Purchases—
Sales21.96M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
34.77M
VANGUARD GROUP INC
Insider stance
Net selling
$422.04M sold / — bought
Latest filing
May 6, 2026
Most recent holder or insider filing date
Rows loaded
240
120 holder / 120 insider
- Holder rows
- 120
- Market data source
- Latest filing
- May 6, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 69
- 44 decreased in loaded rows
- Insider rows
- 120
- Market data source
Top 120 institutional holders
IONQ Inc (IONQ) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where ownership data supplies them.
BLACKROCK
Rank #2
7.96%
- Shares
- 29.87M
- Change
- -206.61K
- Change %
- -69.00%
- Filing
- Mar 31, 2026
Decreased
MORGAN STANLEY
Rank #3
5.64%
- Shares
- 21.16M
- Change
- +1.59M
- Change %
- +8.14%
- Filing
- Mar 31, 2026
Increased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #4
4.10%
- Shares
- 15.39M
- Change
- +15.39M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
VANGUARD CAPITAL MANAGEMENT LLC
Rank #5
4.01%
- Shares
- 15.06M
- Change
- +15.06M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
DEFIANCE ETFS
Rank #6
2.59%
- Shares
- 9.70M
- Change
- +8.93M
- Change %
- +11.55%
- Filing
- Mar 31, 2026
Increased
STATE STREET CORP
Rank #7
2.47%
- Shares
- 9.27M
- Change
- +308.07K
- Change %
- +3.44%
- Filing
- Mar 31, 2026
Increased
GEODE CAPITAL MANAGEMENT
Rank #8
2.25%
- Shares
- 8.44M
- Change
- +365.76K
- Change %
- +4.53%
- Filing
- Mar 31, 2026
Increased
UBS GROUP AG
Rank #9
1.55%
- Shares
- 5.81M
- Change
- +1.58M
- Change %
- +37.44%
- Filing
- Mar 31, 2026
Increased
NORGES BANK
Rank #10
1.19%
- Shares
- 4.45M
- Change
- +1.78M
- Change %
- +66.68%
- Filing
- Dec 31, 2025
Increased
MAREX GROUP PLC
Rank #11
1.07%
- Shares
- 4.01M
- Change
- -77.54K
- Change %
- -1.90%
- Filing
- Mar 31, 2026
Decreased
GOLDMAN SACHS GROUP INC
Rank #12
0.95%
- Shares
- 3.55M
- Change
- +1.72M
- Change %
- +93.83%
- Filing
- Mar 31, 2026
Increased
NORTHERN TRUST CORP
Rank #13
0.86%
- Shares
- 3.24M
- Change
- -41.91K
- Change %
- -1.28%
- Filing
- Mar 31, 2026
Decreased
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Rank #14
0.77%
- Shares
- 2.90M
- Change
- -17.55K
- Change %
- -60.00%
- Filing
- Mar 31, 2026
Decreased
VANGUARD FIDUCIARY TRUST CO
Rank #15
0.63%
- Shares
- 2.38M
- Change
- +2.38M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
TWO SIGMA INVESTMENTS
Rank #16
0.62%
- Shares
- 2.34M
- Change
- +2.17M
- Change %
- +12.41%
- Filing
- Mar 31, 2026
Increased
D. E. SHAW & CO.
Rank #17
0.51%
- Shares
- 1.90M
- Change
- +1.02M
- Change %
- +1.16%
- Filing
- Mar 31, 2026
Increased
CLEAR STREET GROUP INC.
Rank #18
0.49%
- Shares
- 1.83M
- Change
- -1.36M
- Change %
- -42.69%
- Filing
- Mar 31, 2026
Decreased
BANK OF NEW YORK MELLON CORP
Rank #19
0.48%
- Shares
- 1.82M
- Change
- +78.22K
- Change %
- +4.50%
- Filing
- Mar 31, 2026
Increased
BANK OF AMERICA CORP
Rank #20
0.48%
- Shares
- 1.81M
- Change
- -329.40K
- Change %
- -15.41%
- Filing
- Mar 31, 2026
Decreased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | 9.27% | 34.77M | +5.42M Increased | +18.46% | Dec 31, 2025 | |
| 2 | 7.96% | 29.87M | -206.61K Decreased | -69.00% | Mar 31, 2026 | |
| 3 | 5.64% | 21.16M | +1.59M Increased | +8.14% | Mar 31, 2026 | |
| 4 | 4.10% | 15.39M | +15.39M Initiated | — | Mar 31, 2026 | |
| 5 | 4.01% | 15.06M | +15.06M Initiated | — | Mar 31, 2026 | |
| 6 | DEFIANCE ETFS | 2.59% | 9.70M | +8.93M Increased | +11.55% | Mar 31, 2026 |
| 7 | 2.47% | 9.27M | +308.07K Increased | +3.44% | Mar 31, 2026 | |
| 8 | 2.25% | 8.44M | +365.76K Increased | +4.53% | Mar 31, 2026 | |
| 9 | 1.55% | 5.81M | +1.58M Increased | +37.44% | Mar 31, 2026 | |
| 10 | 1.19% | 4.45M | +1.78M Increased | +66.68% | Dec 31, 2025 | |
| 11 | MAREX GROUP PLC | 1.07% | 4.01M | -77.54K Decreased | -1.90% | Mar 31, 2026 |
| 12 | 0.95% | 3.55M | +1.72M Increased | +93.83% | Mar 31, 2026 | |
| 13 | 0.86% | 3.24M | -41.91K Decreased | -1.28% | Mar 31, 2026 | |
| 14 | 0.77% | 2.90M | -17.55K Decreased | -60.00% | Mar 31, 2026 | |
| 15 | 0.63% | 2.38M | +2.38M Initiated | — | Mar 31, 2026 | |
| 16 | TWO SIGMA INVESTMENTS | 0.62% | 2.34M | +2.17M Increased | +12.41% | Mar 31, 2026 |
| 17 | 0.51% | 1.90M | +1.02M Increased | +1.16% | Mar 31, 2026 | |
| 18 | CLEAR STREET GROUP INC. | 0.49% | 1.83M | -1.36M Decreased | -42.69% | Mar 31, 2026 |
| 19 | BANK OF NEW YORK MELLON CORP | 0.48% | 1.82M | +78.22K Increased | +4.50% | Mar 31, 2026 |
| 20 | 0.48% | 1.81M | -329.40K Decreased | -15.41% | Mar 31, 2026 |
Showing 20 of 120 matching institutional rows.Load more institutions
Recent insider transactions
IONQ Inc (IONQ) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 3.77K
- % company
- <0.01%
- Price
- $49.90
- Value
- $188,273
Filed May 6, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 3.77K
- % company
- <0.01%
- Price
- $11.24
- Value
- $42,409
Filed May 6, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 3.77K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed May 6, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 2.50K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Apr 16, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 2.50K
- % company
- <0.01%
- Price
- $11.24
- Value
- $28,100
Filed Apr 16, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 2.50K
- % company
- <0.01%
- Price
- $44.90
- Value
- $112,250
Filed Apr 16, 2026
RAYMOND, JOHN W
Director, Special Advisor
- Shares
- 2.80K
- % company
- <0.01%
- Price
- $33.34
- Value
- $93,352
Filed Mar 12, 2026
SINGH, INDER M
CFO & COO
- Shares
- 8.13K
- % company
- <0.01%
- Price
- $34.80
- Value
- $283,079
Filed Mar 11, 2026
DE, MASI NICCOLO
Director, President and CEO
- Shares
- 20.79K
- % company
- <0.01%
- Price
- $34.80
- Value
- $723,360
Filed Mar 11, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 904
- % company
- <0.01%
- Price
- $34.80
- Value
- $31,461
Filed Mar 11, 2026
DACIER, PAUL T
CAO, CLO and Secretary
- Shares
- 6.18K
- % company
- <0.01%
- Price
- $34.80
- Value
- $215,111
Filed Mar 11, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 31.65K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Mar 2, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Sale to issuer | 3.77K | $49.90 | $188,273 | May 6, 2026 |
| 2 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Award / grant | 3.77K | $11.24 | $42,409 | May 6, 2026 |
| 3 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Sale to issuer | 3.77K | Not reported | Not reported | May 6, 2026 |
| 4 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Sale to issuer | 2.50K | Not reported | Not reported | Apr 16, 2026 |
| 5 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Award / grant | 2.50K | $11.24 | $28,100 | Apr 16, 2026 |
| 6 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Award / grant | 2.50K | $44.90 | $112,250 | Apr 16, 2026 |
| 7 | RAYMOND, JOHN W Director, Special Advisor | <0.01% | Sale to issuer | 2.80K | $33.34 | $93,352 | Mar 12, 2026 |
| 8 | SINGH, INDER M CFO & COO | <0.01% | Sale to issuer | 8.13K | $34.80 | $283,079 | Mar 11, 2026 |
| 9 | DE, MASI NICCOLO Director, President and CEO | <0.01% | Sale to issuer | 20.79K | $34.80 | $723,360 | Mar 11, 2026 |
| 10 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Sale to issuer | 904 | $34.80 | $31,461 | Mar 11, 2026 |
| 11 | DACIER, PAUL T CAO, CLO and Secretary | <0.01% | Sale to issuer | 6.18K | $34.80 | $215,111 | Mar 11, 2026 |
| 12 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | Award / grant | 31.65K | No cash value | No cash value | Mar 2, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest IONQ shareholders?
VANGUARD GROUP INC is the largest institutional holder in the loaded IONQ ownership dataset, with 34.77 million shares, or about 9.27% of shares outstanding. The table ranks additional institutions by reported share count.
What is institutional ownership of IONQ?
The current TECHi snapshot has 120 loaded institutional rows for IONQ Inc. 69 rows are marked increased or initiated, while 44 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
Where can I see IONQ Inc insider transactions?
The insider transaction table currently shows 120 loaded Form 4 rows for IONQ, with the latest insider filing dated May 6, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
Are IONQ insiders buying or selling?
The loaded IONQ Form 4 rows currently read Net selling: 72 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
Who is the most active IONQ insider in the loaded filings?
CHAPMAN, PETER HUME is the most active insider by absolute share movement in the loaded IONQ rows, with 27.99 million shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.