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IonQ, Inc. (IONQ) institutional ownership

Market cap$16.9B SectorTechnology
Funds holding · Q1 2026
645
reported IONQ position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
349 buyers · 296 sellers

IonQ, Inc. (IONQ) price and institutional activity

Dates

Q1 2026

$0 bought by 349 investors
Defiance Etfs, LLCTwo Sigma Investments, LP +347 more
$0 sold by 296 investors
NorgesT. Rowe Price Associates +294 more
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Bought Sold Totals per quarter; hover a bar for the names.

IonQ, Inc. (IONQ) institutional activity · 645

Investor Type Est. change Change Δ Own Date
Defiance Etfs, LLC · Added
Change +8.9M Date Q1 2026
Defiance Etfs, LLC Added· Q1 2026 +8.9M Q1 2026
Norges · Exited
Change −4.5M Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −4.5M −100.0% Q1 2026
T. Rowe Price Associates · Reduced
Change −2.6M Date Q1 2026
T. Rowe Price Associates Reduced· Q1 2026 −2.6M Q1 2026
Two Sigma Investments, LP · Added
Change +2.2M Δ Own +1241.5% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +2.2M +1241.5% Q1 2026
Goldman Sachs Group Inc · Added
Change +1.7M Date Q1 2026
Goldman Sachs Group Inc Added· Q1 2026 +1.7M Q1 2026
Morgan Stanley · Added
Change +1.6M Date Q1 2026
Morgan Stanley Added· Q1 2026 +1.6M Q1 2026
UBS Group AG · Added
Change +1.6M Date Q1 2026
UBS Group AG Added· Q1 2026 +1.6M Q1 2026
Vanguard · Reduced
Change −1.5M Date Q1 2026
Vanguard Reduced· Q1 2026 −1.5M Q1 2026
Hrt Financial LP · New
Change +1.5M Date Q1 2026
Hrt Financial LP New· Q1 2026 +1.5M Q1 2026
Jane Street Group, LLC · Added
Change +1.4M Date Q1 2026
Jane Street Group, LLC Added· Q1 2026 +1.4M Q1 2026
Alliancebernstein L.P. · Reduced
Change −1.4M Date Q1 2026
Alliancebernstein L.P. Reduced· Q1 2026 −1.4M Q1 2026
Clear Street Group Inc. · Reduced
Change −1.4M Date Q1 2026
Clear Street Group Inc. Reduced· Q1 2026 −1.4M Q1 2026
National Bank of Canada · Added
Change +1.3M Date Q1 2026
National Bank of Canada Added· Q1 2026 +1.3M Q1 2026
Victory Capital Management Inc · Reduced
Change −1.2M Date Q1 2026
Victory Capital Management Inc Reduced· Q1 2026 −1.2M Q1 2026
Alyeska Investment Group, L.P. · New
Change +1.1M Date Q1 2026
Alyeska Investment Group, L.P. New· Q1 2026 +1.1M Q1 2026
Data through Q1 2026 · filed Jun 9, 2026
15 of 645

Famous investor activity in IonQ, Inc. (IONQ)

IonQ, Inc. (IONQ) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Toledano Gabrielle B. · Director Sell −$152K
Price $55.01 Qty −3K Owned 11K ΔOwn −19.8% Trade date Jun 18, 2026 Filed date Jun 22, 2026
Toledano Gabrielle B. Director Sell $55.01 −3K −$152K 11K −19.8% Jun 18, 2026 Jun 22, 2026
Chou Kathryn K. · Director Sell −$152K
Price $55.02 Qty −3K Owned 63K ΔOwn −4.2% Trade date Jun 18, 2026 Filed date Jun 22, 2026
Chou Kathryn K. Director Sell $55.02 −3K −$152K 63K −4.2% Jun 18, 2026 Jun 22, 2026
Raymond John W. · Director Sell −$210K
Price $55.01 Qty −4K Owned 80K ΔOwn −4.5% Trade date Jun 18, 2026 Filed date Jun 22, 2026
Raymond John W. Director Sell $55.01 −4K −$210K 80K −4.5% Jun 18, 2026 Jun 22, 2026
Toledano Gabrielle B. · Director Grant (A) 5K
Owned 14K ΔOwn +48.2% Trade date Jun 17, 2026 Filed date Jun 22, 2026
Toledano Gabrielle B. Director Grant (A) 5K 14K +48.2% Jun 17, 2026 Jun 22, 2026
Chou Kathryn K. · Director Grant (A) 5K
Owned 65K ΔOwn +7.4% Trade date Jun 17, 2026 Filed date Jun 22, 2026
Chou Kathryn K. Director Grant (A) 5K 65K +7.4% Jun 17, 2026 Jun 22, 2026
Frankola Jim · Director Grant (A) 5K
Owned 9K Trade date Jun 17, 2026 Filed date Jun 18, 2026
Frankola Jim Director Grant (A) 5K 9K Jun 17, 2026 Jun 18, 2026
Teuber William J. Jr · Director Grant (A) 5K
Owned 14K Trade date Jun 17, 2026 Filed date Jun 18, 2026
Teuber William J. Jr Director Grant (A) 5K 14K Jun 17, 2026 Jun 18, 2026
Scannell William F. · Director Grant (A) 5K
Owned 145K Trade date Jun 17, 2026 Filed date Jun 18, 2026
Scannell William F. Director Grant (A) 5K 145K Jun 17, 2026 Jun 18, 2026
Singh Inder M. · Officer Tax withholding or exercise payment (F) -$156K
Price $59.75 Qty -3K Owned 415K Trade date Jun 16, 2026 Filed date Jun 18, 2026
Singh Inder M. Officer Tax withholding or exercise payment (F) $59.75 -3K -$156K 415K Jun 16, 2026 Jun 18, 2026
Singh Inder M. · Officer Tax withholding or exercise payment (F) -$353K
Price $56.21 Qty -6K Owned 418K Trade date Jun 11, 2026 Filed date Jun 12, 2026
Singh Inder M. Officer Tax withholding or exercise payment (F) $56.21 -6K -$353K 418K Jun 11, 2026 Jun 12, 2026
De Masi Niccolo · Director Tax withholding or exercise payment (F) -$906K
Price $56.21 Qty -16K Owned 1.1M Trade date Jun 11, 2026 Filed date Jun 12, 2026
De Masi Niccolo Director Tax withholding or exercise payment (F) $56.21 -16K -$906K 1.1M Jun 11, 2026 Jun 12, 2026
Cardillo Robert T. · Director Tax withholding or exercise payment (F) -$51K
Price $56.21 Qty -904 Owned 139K Trade date Jun 11, 2026 Filed date Jun 12, 2026
Cardillo Robert T. Director Tax withholding or exercise payment (F) $56.21 -904 -$51K 139K Jun 11, 2026 Jun 12, 2026
Dacier Paul T. · Officer Tax withholding or exercise payment (F) -$231K
Price $56.21 Qty -4K Owned 104K Trade date Jun 11, 2026 Filed date Jun 12, 2026
Dacier Paul T. Officer Tax withholding or exercise payment (F) $56.21 -4K -$231K 104K Jun 11, 2026 Jun 12, 2026
Cardillo Robert T. · Director Sell −$188K
Price $49.90 Qty −4K Owned 140K Trade date May 6, 2026 Filed date May 8, 2026
Cardillo Robert T. Director Sell $49.90 −4K −$188K 140K May 6, 2026 May 8, 2026
Cardillo Robert T. · Director 2 operations 0
Price $11.24 Owned 9K Trade date May 6, 2026 Filed date May 8, 2026
Cardillo Robert T. Director 2 operations $11.24 0 9K May 6, 2026 May 8, 2026
15 of 64
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IonQ, Inc. (IONQ) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
New Enterprise Associates 15, L.P. 26.3M
% of shares outstanding 13.3% Filing date Jun 6, 2022
New Enterprise Associates 15, L.P. 26.3M 13.3% Jun 6, 2022
Vanguard Group Inc 21.2M
% of shares outstanding 9.9% Filing date Nov 12, 2024
Vanguard Group Inc 21.2M 9.9% Nov 12, 2024
BlackRock Inc. 12.4M
% of shares outstanding 6.0% Filing date Jan 29, 2024
BlackRock Inc. 12.4M 6.0% Jan 29, 2024
Linden Capital L.P. 364K
% of shares outstanding 0.2% Filing date Jan 28, 2022
Linden Capital L.P. 364K 0.2% Jan 28, 2022
Gv 2016, L.P. 4.6M
% of shares outstanding 0.0% Filing date Apr 22, 2022
Gv 2016, L.P. 4.6M 0.0% Apr 22, 2022
Integrated Core Strategies (us) LLC 95K
% of shares outstanding 0.0% Filing date Feb 14, 2022
Integrated Core Strategies (us) LLC 95K 0.0% Feb 14, 2022
Polar Asset Management Partners Inc.
% of shares outstanding 0.0% Filing date Feb 8, 2022
Polar Asset Management Partners Inc. 0.0% Feb 8, 2022
7 of 7

IonQ, Inc. (IONQ) ownership FAQ

Who owns IONQ?

645 reporting institutions disclosed IONQ position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.