DOSSIER · 13F Holders · Q1 2026
CBOO
CALAMOS ETF TR
7 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 12811T613·7 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
7 institutions reported CBOO in Q1 2026. Calamos Advisors LLC leads at 32.9% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.