DOSSIER · 13F Holders · Q1 2026
CBOA

CALAMOS ETF TR

6 institutions still hold CALAMOS ETF TR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 12811T670·6 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$3M
visible holders
Holders
6
filers reporting
Concentration
52.05%
JANE STREET GROUP, LLC #1
top holder share
AI Holders Summary · Q1 2026

6 institutions reported CBOA in Q1 2026. JANE STREET GROUP, LLC leads at 52.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$1M55K0.00%Q1 2026
02
OLD MISSION CAPITAL LLC
CIK 0001455915
$636K27K0.01%Q2 2026
03
Calamos Advisors LLC
CIK 0001316507
$580K24K0.00%Q2 2026
04
Stephens Consulting, LLC
CIK 0001961632
$20K7790.01%Q4 2025
05
Ankerstar Wealth, LLC
CIK 0002053917
$3K1440.00%Q2 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025