23 institutions reported holding $10.1M of CALAMOS ETF TR (CBXJ) in SEC 13F filings for 2026-06-30. Largest institutional holders: MGO ONE SEVEN LLC ($4.7M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($2.3M), Calamos Advisors LLC ($737,401), JANE STREET GROUP, LLC ($663,956), IFP Advisors, Inc ($378,596). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30