DOSSIER · 13F Holders · Q2 2026

ZIONS BANCORPORATION N A

5 institutions still hold ZIONS BANCORPORATION N A as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 989701957·5 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$19M
visible holders
Holders
5
filers reporting
Concentration
51.55%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q2 2026

5 institutions reported ZIONS BANCORPORATION N A in Q2 2026. Optiver Holding B.V. leads at 51.5% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Optiver Holding B.V.
CIK 0001859606· Market maker
$10M142K0.00%Q2 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$4M57K0.00%Q2 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$3M43K0.00%Q2 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$2M33K0.00%Q2 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025