CALAMOS TAX-AWARE CLTRAL ETF (CBOX) Institutional Ownership and Insiders Activity

CALAMOS TAX-AWARE CLTRAL ETF (CBOX) is widely held by institutional investors, with 8 firms reporting positions valued at approximately $1.63B based on SEC Form 13F filings for the quarter ended September 30, 2026.

Calamos Advisors Llc is the largest disclosed holder, reporting approximately $1.61B in CBOX holdings in its latest filing.

Institutional ownership remains highly concentrated, with Calamos Advisors Llc representing the majority of disclosed value.