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 23, 4:00 PM EDT · Statements Mar 30, 8:00 PM EDT
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Data freshness
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Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
Last traded •
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Provider checked •
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Provider checked •
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Latest item •
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Ownership read
IONQ insider sentiment: Mixed, sale-heavy.
VANGUARD GROUP INC is the largest institutional holder. 71 sales and 49 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
IONQ
Purchases7.64M
Sales15.95M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
34.77M
VANGUARD GROUP INC
Insider stance
Mixed, sale-heavy
$385.56M sold / $2.83M bought
Latest filing
Jun 18, 2026
Most recent holder or insider filing date
Filings shown
240
120 holder / 120 insider
- Holder rows
- 120
- Market data source
- Latest filing
- Jun 18, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 69
- 44 decreased
- 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 %
- +1155.19%
- 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 %
- -128.00%
- 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 %
- +1241.50%
- Filing
- Mar 31, 2026
Increased
D. E. SHAW & CO.
Rank #17
0.51%
- Shares
- 1.90M
- Change
- +1.02M
- Change %
- +116.17%
- 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 | +1155.19% | 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 | -128.00% | 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 | +1241.50% | Mar 31, 2026 |
| 17 | 0.51% | 1.90M | +1.02M Increased | +116.17% | 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.
CHOU, KATHRYN K.
Director
- Shares
- 2.76K
- % company
- <0.01%
- Price
- $55.02
- Value
- $151,690
Filed Jun 18, 2026
TOLEDANO, GABRIELLE B
Director
- Shares
- 2.76K
- % company
- <0.01%
- Price
- $55.01
- Value
- $151,663
Filed Jun 18, 2026
RAYMOND, JOHN W
Director, Special Advisor
- Shares
- 3.81K
- % company
- <0.01%
- Price
- $55.01
- Value
- $209,863
Filed Jun 18, 2026
CHOU, KATHRYN K.
Director
- Shares
- 4.53K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Jun 17, 2026
FRANKOLA, JIM
Director
- Shares
- 4.53K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Jun 17, 2026
TEUBER, WILLIAM J JR
Director
- Shares
- 4.53K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Jun 17, 2026
TOLEDANO, GABRIELLE B
Director
- Shares
- 4.53K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Jun 17, 2026
SCANNELL, WILLIAM F
Director
- Shares
- 4.53K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Jun 17, 2026
SINGH, INDER M
CFO & COO
- Shares
- 2.62K
- % company
- <0.01%
- Price
- $59.75
- Value
- $156,366
Filed Jun 16, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 904
- % company
- <0.01%
- Price
- $56.21
- Value
- $50,810
Filed Jun 11, 2026
DE, MASI NICCOLO
Director, President and CEO
- Shares
- 16.12K
- % company
- <0.01%
- Price
- $56.21
- Value
- $906,028
Filed Jun 11, 2026
SINGH, INDER M
CFO & COO
- Shares
- 6.27K
- % company
- <0.01%
- Price
- $56.21
- Value
- $352,519
Filed Jun 11, 2026
DACIER, PAUL T
CAO, CLO and Secretary
- Shares
- 4.11K
- % company
- <0.01%
- Price
- $56.21
- Value
- $231,003
Filed Jun 11, 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
- 3.77K
- % company
- <0.01%
- Price
- $49.90
- Value
- $188,273
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
- $44.90
- Value
- $112,250
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
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
- Not reported
- Value
- Not reported
Filed Mar 2, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 3.07K
- % company
- <0.01%
- Price
- $39.19
- Value
- $120,360
Filed Feb 27, 2026
TEUBER, WILLIAM J JR
Director
- Shares
- 3.00K
- % company
- <0.01%
- Price
- $38.39
- Value
- $115,155
Filed Feb 27, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 2.50K
- % company
- <0.01%
- Price
- $11.24
- Value
- $28,100
Filed Feb 26, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 2.50K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Feb 26, 2026
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 5.17K
- % company
- <0.01%
- Price
- $39.44
- Value
- $203,685
Filed Feb 26, 2026
TOLEDANO, GABRIELLE B
Director
- Shares
- 616
- % company
- <0.01%
- Price
- $31.00
- Value
- $19,096
Filed Feb 24, 2026
DACIER, PAUL T
CAO, CLO and Secretary
- Shares
- 4.43K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Feb 20, 2026
SINGH, INDER M
CFO & COO
- Shares
- 3.71K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Feb 20, 2026
DE, MASI NICCOLO
Director, President and CEO
- Shares
- 11.56K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Feb 20, 2026
CHOU, KATHRYN K.
Director
- Shares
- 5.00K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Dec 22, 2025
CHOU, KATHRYN K.
Director
- Shares
- 5.00K
- % company
- <0.01%
- Price
- $55.00
- Value
- $275,000
Filed Dec 22, 2025
CHOU, KATHRYN K.
Director
- Shares
- 5.00K
- % company
- <0.01%
- Price
- $4.61
- Value
- $23,050
Filed Dec 22, 2025
CHOU, KATHRYN K.
Director
- Shares
- 20.00K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Dec 11, 2025
CHOU, KATHRYN K.
Director
- Shares
- 20.00K
- % company
- <0.01%
- Price
- $51.40
- Value
- $1,027,980
Filed Dec 11, 2025
CHOU, KATHRYN K.
Director
- Shares
- 20.00K
- % company
- <0.01%
- Price
- $4.61
- Value
- $92,200
Filed Dec 11, 2025
SINGH, INDER M
CFO & COO
- Shares
- 12.55K
- % company
- <0.01%
- Price
- $50.49
- Value
- $633,757
Filed Dec 11, 2025
DACIER, PAUL T
CAO, CLO and Secretary
- Shares
- 4.13K
- % company
- <0.01%
- Price
- $50.49
- Value
- $208,610
Filed Dec 11, 2025
MILLARD, SCOTT FRANCIS
Chief Business Officer
- Shares
- 19.59K
- % company
- <0.01%
- Price
- $50.49
- Value
- $988,829
Filed Dec 11, 2025
DE, MASI NICCOLO
Director, President and CEO
- Shares
- 16.29K
- % company
- <0.01%
- Price
- $50.49
- Value
- $822,425
Filed Dec 11, 2025
ALAMEDDINE, RIMA
Chief Revenue Officer
- Shares
- 100.00K
- % company
- 0.03%
- Price
- $46.89
- Value
- $4,689,060
Filed Nov 20, 2025
RAYMOND, JOHN W
Director, Special Advisor
- Shares
- 83.70K
- % company
- 0.02%
- Price
- Not reported
- Value
- Not reported
Filed Nov 17, 2025
TEUBER, WILLIAM J JR
Director
- Shares
- 2.00K
- % company
- <0.01%
- Price
- $54.82
- Value
- $109,630
Filed Nov 11, 2025
SINGH, INDER M
CFO & COO
- Shares
- 274.95K
- % company
- 0.07%
- Price
- Not reported
- Value
- Not reported
Filed Nov 10, 2025
ACOSTA, DEAN P.
CCA & GRO
- Shares
- 75.96K
- % company
- 0.02%
- Price
- Not reported
- Value
- Not reported
Filed Oct 6, 2025
RAYMOND, JOHN W
Director
- Shares
- 3.06K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Sep 25, 2025
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 8.77K
- % company
- <0.01%
- Price
- $50.52
- Value
- $443,192
Filed Sep 12, 2025
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 8.77K
- % company
- <0.01%
- Price
- $11.24
- Value
- $98,609
Filed Sep 12, 2025
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 8.77K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Sep 12, 2025
DACIER, PAUL T
Chief Administrative Officer
- Shares
- 4.17K
- % company
- <0.01%
- Price
- $44.40
- Value
- $185,377
Filed Sep 11, 2025
DE, MASI NICCOLO
Director, President and CEO
- Shares
- 16.12K
- % company
- <0.01%
- Price
- $44.40
- Value
- $715,754
Filed Sep 11, 2025
ALAMEDDINE, RIMA
Chief Revenue Officer
- Shares
- 19.98K
- % company
- <0.01%
- Price
- $44.40
- Value
- $886,966
Filed Sep 11, 2025
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 31.92K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Sep 10, 2025
CARDILLO, ROBERT T.
Director, Executive Chair, IonQ Federal
- Shares
- 45.60K
- % company
- 0.01%
- Price
- Not reported
- Value
- Not reported
Filed Sep 10, 2025
SINGH, INDER M
CFO and COO
- Shares
- 160.29K
- % company
- 0.04%
- Price
- Not reported
- Value
- Not reported
Filed Sep 4, 2025
KRAMER, THOMAS G.
Chief Financial Officer
- Shares
- 64.58K
- % company
- 0.02%
- Price
- $41.82
- Value
- $2,700,859
Filed Sep 3, 2025
FRANKOLA, JIM
Director
- Shares
- 4.41K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Aug 26, 2025
TEUBER, WILLIAM J JR
Director
- Shares
- 4.41K
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Aug 26, 2025
SINGH, INDER M
Director
- Shares
- 2.05K
- % company
- <0.01%
- Price
- $5.72
- Value
- $11,726
Filed Aug 13, 2025
SINGH, INDER M
Director
- Shares
- 33.57K
- % company
- <0.01%
- Price
- $12.93
- Value
- $434,060
Filed Aug 13, 2025
SINGH, INDER M
Director
- Shares
- 2.05K
- % company
- <0.01%
- Price
- $5.72
- Value
- $11,726
Filed Aug 13, 2025
SINGH, INDER M
Director
- Shares
- 14.86K
- % company
- <0.01%
- Price
- $13.53
- Value
- $201,056
Filed Aug 13, 2025
SINGH, INDER M
Director
- Shares
- 50.48K
- % company
- 0.01%
- Price
- $43.02
- Value
- $2,171,801
Filed Aug 13, 2025
SINGH, INDER M
Director
- Shares
- 33.57K
- % company
- <0.01%
- Price
- $12.93
- Value
- $434,060
Filed Aug 13, 2025
SINGH, INDER M
Director
- Shares
- 14.86K
- % company
- <0.01%
- Price
- $13.53
- Value
- $201,056
Filed Aug 13, 2025
DE, MASI NICCOLO
Director, President and CEO
- Shares
- 485.32K
- % company
- 0.13%
- Price
- Not reported
- Value
- Not reported
Filed Aug 13, 2025
DACIER, PAUL T
CLO and Corporate Secretary
- Shares
- 109.20K
- % company
- 0.03%
- Price
- Not reported
- Value
- Not reported
Filed Aug 13, 2025
KRAMER, THOMAS G.
Chief Financial Officer
- Shares
- 17.78K
- % company
- <0.01%
- Price
- $41.28
- Value
- $733,800
Filed Aug 6, 2025
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | CHOU, KATHRYN K. Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.76K | $55.02 | $151,690 | Jun 18, 2026 |
| 2 | TOLEDANO, GABRIELLE B Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.76K | $55.01 | $151,663 | Jun 18, 2026 |
| 3 | RAYMOND, JOHN W Director, Special Advisor | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 3.81K | $55.01 | $209,863 | Jun 18, 2026 |
| 4 | CHOU, KATHRYN K. Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.53K | Not reported | Not reported | Jun 17, 2026 |
| 5 | FRANKOLA, JIM Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.53K | Not reported | Not reported | Jun 17, 2026 |
| 6 | TEUBER, WILLIAM J JR Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.53K | Not reported | Not reported | Jun 17, 2026 |
| 7 | TOLEDANO, GABRIELLE B Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.53K | Not reported | Not reported | Jun 17, 2026 |
| 8 | SCANNELL, WILLIAM F Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.53K | Not reported | Not reported | Jun 17, 2026 |
| 9 | SINGH, INDER M CFO & COO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.62K | $59.75 | $156,366 | Jun 16, 2026 |
| 10 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 904 | $56.21 | $50,810 | Jun 11, 2026 |
| 11 | DE, MASI NICCOLO Director, President and CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 16.12K | $56.21 | $906,028 | Jun 11, 2026 |
| 12 | SINGH, INDER M CFO & COO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 6.27K | $56.21 | $352,519 | Jun 11, 2026 |
| 13 | DACIER, PAUL T CAO, CLO and Secretary | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 4.11K | $56.21 | $231,003 | Jun 11, 2026 |
| 14 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 3.77K | $11.24 | $42,409 | May 6, 2026 |
| 15 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 3.77K | Not reported | Not reported | May 6, 2026 |
| 16 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 3.77K | $49.90 | $188,273 | May 6, 2026 |
| 17 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.50K | Not reported | Not reported | Apr 16, 2026 |
| 18 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 2.50K | $44.90 | $112,250 | Apr 16, 2026 |
| 19 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 2.50K | $11.24 | $28,100 | Apr 16, 2026 |
| 20 | RAYMOND, JOHN W Director, Special Advisor | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.80K | $33.34 | $93,352 | Mar 12, 2026 |
| 21 | SINGH, INDER M CFO & COO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 8.13K | $34.80 | $283,079 | Mar 11, 2026 |
| 22 | DE, MASI NICCOLO Director, President and CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 20.79K | $34.80 | $723,360 | Mar 11, 2026 |
| 23 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 904 | $34.80 | $31,461 | Mar 11, 2026 |
| 24 | DACIER, PAUL T CAO, CLO and Secretary | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 6.18K | $34.80 | $215,111 | Mar 11, 2026 |
| 25 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 31.65K | Not reported | Not reported | Mar 2, 2026 |
| 26 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 3.07K | $39.19 | $120,360 | Feb 27, 2026 |
| 27 | TEUBER, WILLIAM J JR Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 3.00K | $38.39 | $115,155 | Feb 27, 2026 |
| 28 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 2.50K | $11.24 | $28,100 | Feb 26, 2026 |
| 29 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.50K | Not reported | Not reported | Feb 26, 2026 |
| 30 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 5.17K | $39.44 | $203,685 | Feb 26, 2026 |
| 31 | TOLEDANO, GABRIELLE B Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 616 | $31.00 | $19,096 | Feb 24, 2026 |
| 32 | DACIER, PAUL T CAO, CLO and Secretary | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.43K | Not reported | Not reported | Feb 20, 2026 |
| 33 | SINGH, INDER M CFO & COO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 3.71K | Not reported | Not reported | Feb 20, 2026 |
| 34 | DE, MASI NICCOLO Director, President and CEO | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 11.56K | Not reported | Not reported | Feb 20, 2026 |
| 35 | CHOU, KATHRYN K. Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 5.00K | Not reported | Not reported | Dec 22, 2025 |
| 36 | CHOU, KATHRYN K. Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 5.00K | $55.00 | $275,000 | Dec 22, 2025 |
| 37 | CHOU, KATHRYN K. Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 5.00K | $4.61 | $23,050 | Dec 22, 2025 |
| 38 | CHOU, KATHRYN K. Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 20.00K | Not reported | Not reported | Dec 11, 2025 |
| 39 | CHOU, KATHRYN K. Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 20.00K | $51.40 | $1,027,980 | Dec 11, 2025 |
| 40 | CHOU, KATHRYN K. Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 20.00K | $4.61 | $92,200 | Dec 11, 2025 |
| 41 | SINGH, INDER M CFO & COO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 12.55K | $50.49 | $633,757 | Dec 11, 2025 |
| 42 | DACIER, PAUL T CAO, CLO and Secretary | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 4.13K | $50.49 | $208,610 | Dec 11, 2025 |
| 43 | MILLARD, SCOTT FRANCIS Chief Business Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 19.59K | $50.49 | $988,829 | Dec 11, 2025 |
| 44 | DE, MASI NICCOLO Director, President and CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 16.29K | $50.49 | $822,425 | Dec 11, 2025 |
| 45 | ALAMEDDINE, RIMA Chief Revenue Officer | 0.03% | SaleOpen-market or direct sale reported on Form 4. | 100.00K | $46.89 | $4,689,060 | Nov 20, 2025 |
| 46 | RAYMOND, JOHN W Director, Special Advisor | 0.02% | PurchaseOpen-market or direct purchase reported on Form 4. | 83.70K | Not reported | Not reported | Nov 17, 2025 |
| 47 | TEUBER, WILLIAM J JR Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 2.00K | $54.82 | $109,630 | Nov 11, 2025 |
| 48 | SINGH, INDER M CFO & COO | 0.07% | PurchaseOpen-market or direct purchase reported on Form 4. | 274.95K | Not reported | Not reported | Nov 10, 2025 |
| 49 | ACOSTA, DEAN P. CCA & GRO | 0.02% | PurchaseOpen-market or direct purchase reported on Form 4. | 75.96K | Not reported | Not reported | Oct 6, 2025 |
| 50 | RAYMOND, JOHN W Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 3.06K | Not reported | Not reported | Sep 25, 2025 |
| 51 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 8.77K | $50.52 | $443,192 | Sep 12, 2025 |
| 52 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 8.77K | $11.24 | $98,609 | Sep 12, 2025 |
| 53 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 8.77K | Not reported | Not reported | Sep 12, 2025 |
| 54 | DACIER, PAUL T Chief Administrative Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 4.17K | $44.40 | $185,377 | Sep 11, 2025 |
| 55 | DE, MASI NICCOLO Director, President and CEO | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 16.12K | $44.40 | $715,754 | Sep 11, 2025 |
| 56 | ALAMEDDINE, RIMA Chief Revenue Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 19.98K | $44.40 | $886,966 | Sep 11, 2025 |
| 57 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 31.92K | Not reported | Not reported | Sep 10, 2025 |
| 58 | CARDILLO, ROBERT T. Director, Executive Chair, IonQ Federal | 0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 45.60K | Not reported | Not reported | Sep 10, 2025 |
| 59 | SINGH, INDER M CFO and COO | 0.04% | PurchaseOpen-market or direct purchase reported on Form 4. | 160.29K | Not reported | Not reported | Sep 4, 2025 |
| 60 | KRAMER, THOMAS G. Chief Financial Officer | 0.02% | SaleOpen-market or direct sale reported on Form 4. | 64.58K | $41.82 | $2,700,859 | Sep 3, 2025 |
| 61 | FRANKOLA, JIM Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.41K | Not reported | Not reported | Aug 26, 2025 |
| 62 | TEUBER, WILLIAM J JR Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 4.41K | Not reported | Not reported | Aug 26, 2025 |
| 63 | SINGH, INDER M Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 2.05K | $5.72 | $11,726 | Aug 13, 2025 |
| 64 | SINGH, INDER M Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 33.57K | $12.93 | $434,060 | Aug 13, 2025 |
| 65 | SINGH, INDER M Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 2.05K | $5.72 | $11,726 | Aug 13, 2025 |
| 66 | SINGH, INDER M Director | <0.01% | PurchaseOpen-market or direct purchase reported on Form 4. | 14.86K | $13.53 | $201,056 | Aug 13, 2025 |
| 67 | SINGH, INDER M Director | 0.01% | SaleOpen-market or direct sale reported on Form 4. | 50.48K | $43.02 | $2,171,801 | Aug 13, 2025 |
| 68 | SINGH, INDER M Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 33.57K | $12.93 | $434,060 | Aug 13, 2025 |
| 69 | SINGH, INDER M Director | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 14.86K | $13.53 | $201,056 | Aug 13, 2025 |
| 70 | DE, MASI NICCOLO Director, President and CEO | 0.13% | PurchaseOpen-market or direct purchase reported on Form 4. | 485.32K | Not reported | Not reported | Aug 13, 2025 |
| 71 | DACIER, PAUL T CLO and Corporate Secretary | 0.03% | PurchaseOpen-market or direct purchase reported on Form 4. | 109.20K | Not reported | Not reported | Aug 13, 2025 |
| 72 | KRAMER, THOMAS G. Chief Financial Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 17.78K | $41.28 | $733,800 | Aug 6, 2025 |
Showing 72 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 of IONQ, with 34.77 million shares, or about 9.27% of shares outstanding. Additional institutions are ranked by reported share count.
What is institutional ownership of IONQ?
IONQ Inc (IONQ) has 120 institutional holders on file — 69 that increased or initiated positions and 44 that reduced them, as of the latest filing on Mar 31, 2026.
Where can I see IONQ Inc insider transactions?
IONQ Inc (IONQ) has 120 Form 4 insider transactions on file, most recently on Jun 18, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.
Are IONQ insiders buying or selling?
Recent IONQ insider activity reads Mixed, sale-heavy: 71 sales and 49 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.
Who is the most active IONQ insider?
CHAPMAN, PETER HUME is the most active IONQ insider by absolute share movement, with 17.98 million shares moving across the filing history. Review the action labels before treating that activity as buying or selling.