DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
QUBT

QUANTUM COMPUTING INC

316 institutions still hold QUANTUM COMPUTING INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74766w108·316 13F holders·last filed Mar 31, 2026
Market cap
8.8%
vs prior quarter
13F value held
$587M
52.0% inst. owned
of float
Holders
316
0 QoQ
filers reporting
Activity
+51 / −17
+929 added · −845 reduced
this quarter
Concentration
18.85%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

Quantum Computing Inc. (QUBT, CUSIP 74766W108) entered Q1 2026 with $700M of institutional 13F value across 290 institutional accounts — a holder profile appropriate for a technology company whose primary business proposition is quantum-computing software integration and access technologies for enterprise and government customers, representing one of the more speculative theses in the institutional portfolio at the quantum-computing adoption cycle tier. The defining Q1 signals are directional divergences: Renaissance Technologies added $3M as a small conviction-position build within its quantitative framework, while BlackRock reduced $60M — a rotation consistent with systematic-quantitative managers rotating in the quantum-computing-thematic sleeve while broad-market index structures and factor mandates trim the low-liquidity name. Five new positions in the quarter alongside these major manager rotations indicate that the quantum-computing thematic is experiencing a fresh wave of institutional attention, even if the overall holder base remains modest relative to the quantum-computing narrative's cultural profile. For smart-money trackers, QUBT is best read as a quantum-computing-thematic-barometer — the institutional flows into this name are more informative as a read on thematic allocation flows (quantum-computing, deep-tech, frontier-technology) than as fundamental equity analysis, given the company's stage and revenue profile.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$111M16.1M0.00%Q1 2026
02
CITADEL ADVISORS LLC
CIK 0001423053
$64M6.2M0.01%Q4 2025
03
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$60M8.8M0.00%Q1 2026
04
Vanguard Portfolio Management
CIK 0002100121· Index
$46M6.7M0.00%Q1 2026
05
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$42M6.2M0.00%Q1 2026
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$32M4.7M0.00%Q1 2026
07
STATE STREET CORP
CIK 0000093751
$31M4.5M0.00%Q1 2026
08
Defiance ETFs, LLC
CIK 0001732541
$31M4.5M0.44%Q1 2026
09
Marex Group plc
CIK 0001997464
$31M4.5M0.19%Q1 2026
10
CAPITAL FUND MANAGEMENT S.A.
CIK 0001323645
$24M3.5M0.11%Q1 2026
11
MORGAN STANLEY
CIK 0000895421
$16M2.3M0.00%Q1 2026
12
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$15M2.2M0.02%Q1 2026
13
WOLVERINE TRADING, LLC
CIK 0000927337
$13M682K0.01%Q3 2025
14
NORTHERN TRUST CORP
CIK 0000073124· Index
$12M1.7M0.00%Q1 2026
15
Mubadala Investment Co PJSC
CIK 0001704268
$11M1.6M0.05%Q1 2026
16
CANADA PENSION PLAN INVESTMENT BOARD
CIK 0001283718
$11M1.0M0.01%Q4 2025
17
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$10M1.5M0.00%Q1 2026
18
Squarepoint Ops LLC
CIK 0001642575
$10M1.4M0.01%Q1 2026
19
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$10M1.4M0.00%Q1 2026
20
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$9M1.3M0.00%Q1 2026
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