Quantum Computing QUBT Institutional Ownership

NASDAQ QUBT

$6.82 +0.32 (+4.92%)

At close: Oct 21, 2026 · 4:00 PM EDT

As of the 13F quarter ended Jun 30, 2026, 313 institutions held 45.43% of Quantum Computing (QUBT) shares outstanding. Versus the prior quarter, institutional ownership was up 4.23 percentage points, the holder count rose by 20 and shares held were up 10.70%. The largest holder is BlackRock, Inc. with 17.73Mn shares (7.83% of outstanding).

Updated Oct 11, 2026 Quantum Computing (QUBT) stock price and overview

Institutions by Trading Activity

313 Institutions

Increased 195 62.3%

Unchanged 57 18.2%

Reduced 61 19.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

45.43%

▲+4.23 pp QoQ

Shares Held by Institutions

102.84Mn

of 226.35Mn outstanding

▲+10.70% QoQ

Shares Outstanding

226.35Mn

123.51Mn held outside 13F filers

Institutional Investors

313

filed 13F for Jun 2026

▲+20 vs prior quarter

Net Shares Added (QoQ)

+9.94Mn

accumulated since last quarter

Value of Holdings

$668.46Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Quantum Computing Inc. (NASDAQ:QUBT) appeared in the 13F filings of 313 institutional investors for the quarter ended June 30, 2026.

Together they owned 45.43% of the outstanding stock in Q2 2026, up from 41.20% a quarter earlier.
Total shares held in QUBT rose 10.70% from Q1 2026; the number of holders rose 43.58% from Q2 2025.
Of the 313 holders of QUBT in Q2 2026, 195 added to their positions, 61 reduced their stakes and 57 left their positions unchanged.
Altogether, institutional holders owned 102.84Mn QUBT shares at the end of Q2 2026, up 9.94Mn from the prior quarter and up 50.34Mn from a year earlier.
BlackRock, Inc. held the largest position in QUBT at 17.73Mn shares as of June 30, 2026, or 7.83% of shares outstanding.
Holders that added the most shares of Quantum Computing in Q2 2026 were Penserra Capital Management LLC (+3.63Mn shares), Defiance ETFs, LLC (+2.54Mn shares), BlackRock, Inc. (+1.59Mn shares), National Bank of Canada (+1.32Mn shares) and Morgan Stanley (+971.28K shares).
Holders that trimmed the most shares of Quantum Computing in Q2 2026 while keeping a position were Marex Group Ltd (-2.19Mn shares), Squarepoint Ops LLC (-949.01K shares), Jump Financial, LLC (-911.13K shares), Citadel Advisors LLC (-722.35K shares) and Engineers Gate Manager LP (-641.67K shares).
According to Business Quant data, the leading holders of QUBT for Q2 2026 were BlackRock, Inc. (17.73Mn shares), Vanguard Capital Management LLC (8.85Mn shares), Defiance ETFs, LLC (7.03Mn shares), Penserra Capital Management LLC (6.98Mn shares), Vanguard Portfolio Management LLC (6.57Mn shares), Geode Capital Management, LLC (5.32Mn shares), State Street Corp (4.92Mn shares), Morgan Stanley (3.29Mn shares), Marex Group Ltd (2.3Mn shares) and Mirae Asset Global ETFS Holdings Ltd. (2.27Mn shares).

Form 13F Holdings

313 Institutional Holders

Report period 30 Jun, 2026

Total shares held 102.84Mn

Of outstanding 45.43%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	17,733,975	7.83%	▲1,594,763	+9.88%	$172.02Mn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	8,848,881	3.91%	▲86,586	+0.99%	$85.83Mn
3	Defiance ETFs, LLC	0001732541	7,033,410	3.11%	▲2,538,327	+56.47%	$66.33Mn
4	Penserra Capital Management LLC	0001593324	6,979,349	3.08%	▲3,629,502	+108.35%	$67.70K
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	6,566,582	2.90%	▼143,542	-2.14%	$63.70Mn
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	5,322,648	2.35%	▲622,343	+13.24%	$51.64Mn
7	State Street Corp	0000093751	4,921,317	2.17%	▲404,497	+8.96%	$47.74Mn
8	Morgan Stanley	0000895421	3,292,011	1.45%	▲971,285	+41.85%	$31.93Mn
9	Marex Group Ltd	0001997464	2,302,359	1.02%	▼2,186,553	-48.71%	$22.33Mn
10	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0001705339	2,272,533	1.00%	▲69,232	+3.14%	$22.05Mn
11	UBS Group AG	0001610520	2,045,200	0.90%	▲729,508	+55.45%	$19.84Mn
12	Bank of New York Mellon Corp	0001390777	1,975,697	0.87%	▲953,093	+93.20%	$19.16Mn
13	Northern Trust Corp	0000073124	1,815,091	0.80%	▲126,010	+7.46%	$17.61Mn
14	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	1,641,744	0.73%	▲149,534	+10.02%	$15.92Mn
15	Mubadala Investment Co PJSC	0001704268	1,587,350	0.70%	0	0.00%	$15.40Mn
16	CAPITAL FUND MANAGEMENT S.A.	0001323645	1,505,193	0.66%	▼195,702	-11.51%	$14.60Mn
17	NATIONAL BANK OF CANADA /FI/	0000926171	1,458,236	0.64%	▲1,319,087	+947.97%	$14.14Mn
18	Clear Street Group Inc.	0001881567	1,427,999	0.63%	▲585,780	+69.55%	$13.85Mn
19	VAN ECK ASSOCIATES CORP	0000869178	1,317,352	0.58%	▲345,750	+35.59%	$12.78Mn
20	VANGUARD FIDUCIARY TRUST CO	0000933478	1,301,720	0.58%	▼41,906	-3.12%	$12.63Mn

Showing 1 to 20 of 313 holders