DOSSIER · 13F Holders · Q2 2026

IONQ INC

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

CUSIP 46222L958·7 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$199M
visible holders
Holders
7
filers reporting
Concentration
50.22%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

7 institutions reported IONQ INC in Q2 2026. IMC-Chicago, LLC leads at 50.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$100M1.9M0.02%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$52M984K0.03%Q2 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$33M612K0.05%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$6M111K0.00%Q2 2026
05
Aristides Capital LLC
CIK 0001595521
$5M100K1.04%Q2 2026
06
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$3M5100.00%Q2 2026
07
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025