DOSSIER · 13F Holders · Q2 2026

NEBIUS GROUP N.V.

9 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 N97284908·9 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.4B
visible holders
Holders
9
filers reporting
Concentration
57.83%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

9 institutions reported NEBIUS GROUP N.V. in Q2 2026. IMC-Chicago, LLC leads at 57.8% 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
$807M2.9M0.19%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$425M1.5M0.60%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$147M534K0.09%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$9M34K0.00%Q2 2026
05
Marathon Trading Investment Management LLC
CIK 0001572748
$4M14K0.12%Q2 2026
06
OnyxPoint Global Management LP
CIK 0001961491
$3M11K0.72%Q2 2026
07
OSAIC HOLDINGS, INC.
CIK 0001677044
$68K120.00%Q2 2026
08
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025
09
Compagnie Lombard Odier SCmA
CIK 0001615423
$000.00%Q2 2026