DOSSIER · 13F Holders · Q2 2026

NEBIUS GROUP N.V.

11 institutions still hold NEBIUS GROUP N.V. as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP N97284958·11 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.3B
visible holders
Holders
11
filers reporting
Concentration
59.13%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

11 institutions reported NEBIUS GROUP N.V. in Q2 2026. IMC-Chicago, LLC leads at 59.1% 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
$739M2.7M0.18%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$340M1.2M0.20%Q2 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$119M433K0.17%Q2 2026
04
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$18M6550.01%Q2 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$17M66K0.00%Q2 2026
06
Marathon Trading Investment Management LLC
CIK 0001572748
$12M44K0.38%Q2 2026
07
Altshuler Shaham Ltd
CIK 0001324290
$3M1500.04%Q2 2026
08
HRT FINANCIAL LP
CIK 0001475597
$627K8K0.00%Q4 2025
09
Miracle Mile Advisors, LLC
CIK 0001585859
$276K1K0.00%Q2 2026
10
Compagnie Lombard Odier SCmA
CIK 0001615423
$000.00%Q2 2026
11
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025