IonQ Ownership | Who Owns IonQ?

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IonQ Ownership Summary

IonQ is owned by 33.25% institutional investors, 0.75% insiders, and 66.00% retail investors. Vanguard group is the largest institutional shareholder, holding 11.81% of IONQ shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.86% of its assets in IonQ shares.

IONQ Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	IonQ	33.25%	0.75%	66.00%
Sector	Technology Stocks	36.01%	15.20%	48.78%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	34.77M	11.81%	$1.56B
Morgan stanley	26.28M	7.32%	$1.40B
Blackrock	14.16M	6.80%	$99.55M
Blackrock funding, inc. /de	20.90M	5.82%	$1.11B
Vanguard capital management	15.60M	4.35%	$830.78M
State street	8.12M	2.26%	$432.66M
Ubs group	7.90M	2.20%	$420.58M
Geode capital management	6.46M	1.80%	$343.11M
Norges bank	5.19M	1.45%	$276.36M
Marex group	4.01M	1.16%	$115.49M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Dcvc opportunity fund ii gp	60.23K	12.52%	$1.74M
Naspers	1.23M	11.46%	$75.87M
Hamilton lane advisors	195.00K	6.99%	$10.39M
Heights capital management	815.54K	6.55%	$23.51M
Orion investment	280.20K	4.35%	$14.92M
Invus financial advisors	500.00K	3.94%	$3.52M
Morgens waterfall vintiadis	78.50K	3.31%	$4.83M
Acme	3.75K	3.21%	$199.83K
Unicom systems	768.90K	2.67%	$40.95M
Wim investment management	104.70K	1.83%	$5.58M

Top Buyers

Holder	Shares	% Assets	Change
Vanguard group	34.77M	0.02%	5.42M
Norges bank	5.19M	0.03%	5.19M
Morgan stanley	26.28M	0.07%	5.12M
Marshall wace, llp	2.33M	0.10%	2.32M
Org wealth partners	2.29M	0.35%	2.25M

Top Sellers

Holder	Shares	% Assets	Change
Blackrock funding, inc. /de	20.90M	0.02%	-8.97M
Healthcare of ontario pension plan trust fund	-	-	-4.44M
Price t rowe associates inc /md/	1.44M	0.00%	-2.57M
Geode capital management	6.46M	0.02%	-1.98M
Softbank group	-	-	-1.59M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	5.19M	0.03%	5.19M	$276.36M
Naspers	1.23M	11.46%	1.23M	$75.87M
Alyeska investment group	1.12M	0.09%	1.12M	$32.18M
Heights capital management	815.54K	6.55%	815.54K	$23.51M
Point72 asset management	415.60K	0.02%	415.60K	$11.98M

Sold Out

Holder	Change
Signature resources capital management	-1.00
Bay harbor wealth management	-1.00
Tortoise investment management	-1.00
Commonwealth retirement investments	-1.00
Pinpoint asset management (singapore) pte.	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	521	-28.63%	114,957,093	-40.62%	33	0.77%	278	-40.47%	132	-8.33%
Dec 31, 2025	553	-17.59%	161,305,666	-4.81%	54	1.20%	363	-21.94%	107	9.18%
Sep 30, 2025	644	24.08%	169,091,750	60.30%	67	3.81%	448	29.86%	94	20.51%
Jun 30, 2025	518	28.22%	131,684,904	33.38%	52	2.82%	343	38.31%	81	-
Mar 31, 2025	5	-98.82%	46,785	-99.95%	-	0.00%	3	-98.95%	-	-100.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	10.67M	2.86%	163.81K
Vanguard Morn Total Stk Mkt Idx Investor	10.67M	2.86%	163.81K
iShares Russell 2000 ETF	8.26M	2.21%	76.34K
Vanguard Small Cap Index	6.66M	1.78%	111.53K
YieldMax Ultra Option Income Strat ETF	4.00M	1.34%	-
Vanguard Institutional Extnd Mkt Idx Tr	4.28M	1.15%	276.40K
Vanguard Morn Small Cap Growth Index Inv	3.85M	1.03%	176.13K
Vanguard Small Cap Growth Index Inv	3.85M	1.03%	176.13K
Fidelity Small Cap Index	3.43M	0.92%	19.36K
Vanguard Information Technology ETF	2.94M	0.79%	24.95K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 18, 2026	TOLEDANO GABRIELLE B	-	Sell	$151.66K
Jun 18, 2026	Chou Kathryn K.	-	Sell	$151.69K
Jun 18, 2026	Raymond John w	Special Advisor	Sell	$209.86K
May 06, 2026	Cardillo Robert T.	Executive Chair, IonQ Federal	Sell	$188.27K
Apr 16, 2026	Cardillo Robert T.	Executive Chair, IonQ Federal	Buy	$112.25K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	2
2026 Q1	1	3
2025 Q4	1	3
2025 Q3	-	14
2025 Q2	-	15

IONQ Ownership FAQ

Who owns the most shares of IonQ?

IonQ’s largest shareholders are Vanguard group (34.77M shares, 11.81%), Morgan stanley (26.28M shares, 7.32%), and Blackrock (14.16M shares, 6.80%). Together, they hold 25.93% of IonQ’s total shares outstanding.

Does Blackrock own IonQ?

Yes, BlackRock owns 6.80% of IonQ, totaling 14.16M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 99.55M$. In the last quarter, BlackRock increased its holdings by 1.78M shares, a 14.39% change.

Who is IonQ’s biggest shareholder by percentage of total assets invested?

Dcvc opportunity fund ii gp is IonQ’s biggest shareholder by percentage of total assets invested, with 12.52% of its assets in 60.23K IonQ shares, valued at 1.74M$.

Who is the top mutual fund holder of IonQ shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of IonQ shares, with 2.86% of its total shares outstanding invested in 10.67M IonQ shares.

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