13F Insight
DOSSIER · 13F Holders · Q2 2026
QNT

QUANTINUUM INC

166 institutions still hold QUANTINUUM INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74768A104·166 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$1.8B
visible holders
Holders
166
filers reporting
Concentration
20.36%
Capital World Investors #1
top holder share
AI Holders Summary · Q2 2026

166 institutions reported QNT in Q2 2026. Capital World Investors leads at 20.4% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Capital World Investors
CIK 0001422849
$373M4.6M0.04%Q2 202602
CITADEL ADVISORS LLC
CIK 0001423053
$199M2.4M0.02%Q2 202603
BlackRock, Inc.
CIK 0002012383
$185M2.3M0.00%Q2 202604
Capital Research Global Investors
CIK 0001422848
$143M1.8M0.02%Q2 202605
Defiance ETFs, LLC
CIK 0001732541
$95M1.2M1.29%Q2 202606
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$92M1.1M0.02%Q2 202607
Vanguard Portfolio Management
CIK 0002100121· Index
$84M1.0M0.00%Q2 202608
Capital International Investors
CIK 0001562230
$79M961K0.02%Q2 202609
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$78M949K0.00%Q2 202610
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$67M822K0.08%Q2 202611
VOYA INVESTMENT MANAGEMENT LLC
CIK 0001068837
$57M691K0.05%Q2 202612
FIL Ltd
CIK 0000318989
$55M667K0.04%Q2 202613
FMR LLC
CIK 0000315066
$53M643K0.00%Q2 202614
NORGES BANK
CIK 0001374170· Sovereign
$46M564K0.00%Q2 202615
FRANKLIN RESOURCES INC
CIK 0000038777
$45M545K0.01%Q2 202616
Shannon River Fund Management LLC
CIK 0001301050
$38M469K3.42%Q2 202617
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$38M464K0.01%Q2 202618
Mubadala Investment Co PJSC
CIK 0001704268
$37M450K0.11%Q2 202619
PRINCIPAL FINANCIAL GROUP INC
CIK 0001126328
$36M440K0.02%Q2 202620
FEDERATED HERMES, INC.
CIK 0001056288
$32M394K0.05%Q2 2026
Page 1 of 9
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Insiders at QUANTINUUM INC
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