DOSSIER · 13F Holders · Q2 2026
CBOX

CALAMOS ETF TR

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

CUSIP 12811T514·7 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$1.1B
visible holders
Holders
7
filers reporting
Concentration
98.98%
Calamos Advisors LLC #1
top holder share
AI Holders Summary · Q2 2026

7 institutions reported CBOX in Q2 2026. Calamos Advisors LLC leads at 99.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Calamos Advisors LLC
CIK 0001316507
$1.1B10.7M3.58%Q2 2026
02
Chicago Partners Investment Group LLC
CIK 0001563525
$7M67K0.13%Q3 2026
03
OLD MISSION CAPITAL LLC
CIK 0001455915
$2M21K0.03%Q2 2026
04
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$2M16K0.00%Q2 2026
05
&PARTNERS
CIK 0000107136
$401K3K0.00%Q2 2026
06
WOLFF WIESE MAGANA LLC
CIK 0001832097
$50K4930.02%Q3 2026
07
SIGNATUREFD, LLC
CIK 0001456048
$13K1290.00%Q3 2026