IonQ

IONQ • NYSE

IonQ is a computer hardware company in the technology sector on NYSE, led by Niccolo Mcleod de Masi, with a market cap of $16.8B. As of Q3 2025, 51% of shares are held by 590 institutional investors, with VANGUARD GROUP INC as the largest holder at 9.09%.

CEONiccolo Mcleod de Masi

Market Cap$16.8B

Computer Hardware

Technology

Employees324.0

Websiteionq.com

Country

United States of America

Overview

Overview of institutional ownership in IONQ as of Q3 2025 with a market cap of $19.9B

All Institutions

Institutions: 590
Value Held: $10.2B
Shares Held: 167.6M
Avg Position: $17.3M
Median Position: $593.9K

Hedge Funds

Hedge Funds: 40
Value Held: $646.7M
Shares Held: 11.8M
Avg Position: $16.2M
Median Position: $1.7M

Ownership Breakdown

Institutional (non-HF)

48.19%

$9.6B

Hedge Funds

3.26%

$646.7M

Retail & Other

48.55%

$9.6B

Based on market cap of $19.9B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in IONQ as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$1.8B 0.03% of portfolio	9.09% 29.4M shares	Q4 2021 Held for 4 years	$6.69T
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$1.6B 0.10% of portfolio	8.15% 26.3M shares	Q3 2021 Held for 4y 3m	$1.65T
BlackRock, Inc. Institution	Laurence D. Fink CEO	$1.4B 0.02% of portfolio	6.96% 22.5M shares	Q4 2021 Held for 4 years	$5.67T
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$408.1M 0.03% of portfolio	2.05% 6.6M shares	Q4 2021 Held for 4 years	$1.57T
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$387.4M 0.01% of portfolio	1.95% 6.3M shares	Q4 2021 Held for 4 years	$2.88T
D D. E. Shaw & Co., Inc. Institution	-	$335.1M 0.29% of portfolio	1.69% 5.4M shares	Q1 2023 Held for 2y 9m	$115.81B
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	David Allen Lippe CEO	$312.4M 0.41% of portfolio	1.57% 5.1M shares	Q1 2025 Held for 9 months	$75.8B
UBS Group AG Institution	Sergio P. Ermotti CEO	$264.5M 0.05% of portfolio	1.33% 4.3M shares	Q4 2021 Held for 4 years	$511.60B
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	Robert W Sharps President	$199.7M 0.02% of portfolio	1.01% 3.2M shares	Q2 2022 Held for 3y 6m	$912.31B
JPMORGAN CHASE & CO Institution	Jamie Dimon CEO	$185.0M 0.01% of portfolio	0.93% 3.0M shares	Q1 2021 Held for 4y 9m	$1.56T

Net Capital Flow

Institutional buying and selling activity for IONQ in Q3 2025

Traded: +$2.5B
Buyers: 453
Sellers: 120
Total Bought: +$2.8B
Total Sold: −$316.9M
Avg Position: $16.2M

Biggest Buyers

Institution	Net Bought	Current Position
MORGAN STANLEY RIA/Wealth	+$372.5M +6.1M shares	$1.6B 26.3M shares
VANGUARD GROUP INC Institution	+$282.1M +4.6M shares	$1.8B 29.4M shares
BlackRock, Inc. Institution	+$259.9M +4.2M shares	$1.4B 22.5M shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$250.5M +4.1M shares	$312.4M 5.1M shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	+$109.0M +1.8M shares	$199.7M 3.2M shares
D D. E. Shaw & Co., Inc. Institution	+$86.6M +1.4M shares	$335.1M 5.4M shares
GEODE CAPITAL MANAGEMENT LLC ETF Provider	+$79.1M +1.3M shares	$408.1M 6.6M shares
N NASPERS LTD Institution	+$75.9M +1.2M shares	$75.9M 1.2M shares
STATE STREET CORP Institution	+$64.2M +1.0M shares	$387.4M 6.3M shares
FMR LLC Institution	+$63.9M +1.0M shares	$139.7M 2.3M shares

Biggest Sellers

Institution	Net Sold	Current Position
Toroso Investments, LLC ETF Provider	−$48.9M −794.4K shares	$8.1M 131.2K shares
AMAZON COM INC Institution	−$36.7M −854.2K shares	Sold Off 0 shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$21.3M −345.6K shares	$29.2M 474.4K shares
WESTFIELD CAPITAL MANAGEMENT CO LP Long Only Manager	−$18.7M −304.0K shares	$22.6M 367.7K shares
A Amundi Institution	−$16.3M −363.6K shares	Sold Off 0 shares
Connor, Clark & Lunn Investment Management Ltd. Long Only Manager	−$14.5M −235.7K shares	$37.0M 602.2K shares
N Neuberger Berman Group LLC Institution	−$11.8M −192.2K shares	$4.8M 78.1K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$11.8M −191.6K shares	$53.5M 869.9K shares
L LPL Financial LLC Institution	−$10.1M −164.9K shares	$34.6M 561.8K shares
Carnegie Capital Asset Management, LLC RIA/Wealth	−$9.6M −155.9K shares	$16.5M 268.7K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited IONQ in Q3 2025

New Positions: 128
New Value: $196.0M
Exited Positions: 40
Exited Value: $80.8M

New Positions

Institution	Position Value
N NASPERS LTD Institution	$75.9M 1.2M shares
FRONTIER CAPITAL MANAGEMENT CO LLC Long Only Manager	$38.6M 628.3K shares
Vident Advisory, LLC ETF Provider	$15.8M 256.7K shares
S STRATEGIC PLANNING GROUP, LLC RIA/Wealth	$6.2M 101.4K shares
KORNITZER CAPITAL MANAGEMENT INC /KS Long Only Manager	$4.2M 68.5K shares
C CAPROCK Group, Inc. Fund of Funds	$3.1M 71.7K shares
P Polymer Capital Management LTD Hedge Fund•Multi-Strategy	$2.7M 44.2K shares
SORA INVESTORS LLC Hedge Fund•Long/Short	$2.2M 35.0K shares
B BANQUE PICTET & CIE SA Institution	$1.8M 30.0K shares
S SPX Equities Gestao de Recursos Ltda Institution	$1.8M 30.0K shares

Exited Positions

Institution	Previous Position
AMAZON COM INC Institution	$36.7M 854.2K shares
A Amundi Institution	$16.3M 363.6K shares
M MAPLELANE CAPITAL, LLC Hedge Fund•Long/Short	$4.0M 94.0K shares
Walleye Trading LLC RIA/Wealth	$3.9M 91.6K shares
T TWINBEECH CAPITAL LP Hedge Fund•Quant	$2.9M 67.8K shares
Scientech Research LLC Hedge Fund•Market Neutral	$2.7M 61.9K shares
U Union Bancaire Privee, UBP SA Institution	$2.7M 82.5K shares
L LMR Partners LLP Institution	$1.8M 42.4K shares
M MISSION WEALTH MANAGEMENT, LLC Institution	$1.4M 32.2K shares
Magnetar Financial LLC Hedge Fund•Multi-Strategy	$1.0M 24.0K shares

Options Activity

Institutions with the largest Call and Put options positions in IONQ as of Q3 2025

Call Positions: 37
Call Value: $1.1B
Put Positions: 45
Put Value: $1.2B

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$261.3M 42.5K contracts
J JANE STREET GROUP, LLC Institution	$229.6M 37.3K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$167.7M 27.3K contracts
D D. E. Shaw & Co., Inc. Institution	$98.3M 16.0K contracts
W WOLVERINE TRADING, LLC Institution	$68.1M 10.6K contracts
C CANTOR FITZGERALD, L. P. Institution	$60.3M 9.8K contracts
N NOMURA HOLDINGS INC Institution	$55.0M 8.9K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$31.3M 5.1K contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$19.5M 3.2K contracts
Walleye Trading LLC RIA/Wealth	$19.3M 3.1K contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$307.9M 50.1K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$166.6M 27.1K contracts
J JANE STREET GROUP, LLC Institution	$101.1M 16.4K contracts
QVT Financial LP Hedge Fund•Multi-Strategy	$93.6M 15.2K contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$70.5M 11.5K contracts
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$64.5M 10.5K contracts
GOLDMAN SACHS GROUP INC Institution	$61.4M 10.0K contracts
C CANTOR FITZGERALD, L. P. Institution	$49.5M 8.1K contracts
BANK OF MONTREAL /CAN/ Institution	$42.8M 7.0K contracts
W WOLVERINE TRADING, LLC Institution	$41.6M 6.5K contracts

Most Committed Institutions

Institutions with IONQ as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
SherpaCapital, LLC Venture Capital	David Bernard Van Benschoten CIO	36.34% $6.4M	0.03% 103.8K shares	Q4 2021 Held for 4 years	$17.6M
N NASPERS LTD Institution	-	11.46% $75.9M	0.38% 1.2M shares	Q3 2025 Held for 3 months	$661.8M
HAMILTON LANE ADVISORS LLC Fund of Funds	Erik Robert Hirsch CEO	9.88% $16.0M	0.08% 260.0K shares	Q4 2021 Held for 4 years	$161.8M
O Orion Investment Co RIA/Wealth	Frederic George Sauer President	5.38% $16.9M	0.09% 275.2K shares	Q2 2024 Held for 1y 6m	$314.7M
Caitong International Asset Management Co., Ltd RIA/Wealth	Dusan Thomas Zachystal CEO	3.76% $5.4M	0.03% 88.5K shares	Q4 2024 Held for 1 year	$144.7M
MORGENS WATERFALL VINTIADIS & CO INC Hedge Fund•Long/Short	Edwin Huffman Morgens Chairman	3.31% $4.8M	0.02% 78.5K shares	Q4 2024 Held for 1 year	$145.8M
LANSDOWNE PARTNERS LLP Hedge Fund•Long/Short	Richard Brian Heyworth CEO	3.20% $38.6M	0.60% 1.9M shares	Q4 2021 Held for 4 years	$1.2B
American Alpha Advisors, LLC RIA/Wealth	Mark Douglas Leimberger CEO	2.25% $3.1M	0.02% 50.0K shares	Q1 2025 Held for 9 months	$136.8M
O Owen LaRue, LLC Institution	-	1.92% $4.7M	0.02% 76.4K shares	Q2 2025 Held for 6 months	$244.6M
Q Quantitative Investment Management, LLC Hedge Fund•Quant Macro	Jaffray Piers Woodriff CEO	1.85% $12.2M	0.06% 197.7K shares	Q1 2025 Held for 9 months	$655.9M

Hedge Fund Spotlight

Discover hedge funds investing in IONQ

CITADEL ADVISORS LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerKenneth Cordele Griffin

Portfolio Value: $122.10B
Positions: 5,533
Last Reported: Q3 2025

Sector Allocation

Position in IonQ

Market Value: $53.5M
Shares Held: 869.9K
Portfolio Weight: 0.04%
Owned Since: 2021-Q1

Top Holding	Sector	Market Value	Weight
1 Microsoft MSFT	Software - Infrastructure Technology	$2.1B	1.68%
2 Nvidia NVDA	Semiconductors Technology	$1.8B	1.50%
3 Meta Platforms, Inc. META	Internet Content & Information Communication Services	$1.4B	1.18%