11 institutions reported holding $2.0M of CALAMOS ETF TR (CBXY) in SEC 13F filings for 2026-06-30. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($833,651), Calamos Advisors LLC ($372,402), Cambridge Investment Research Advisors, Inc. ($299,000), Calamos Wealth Management LLC ($276,769), VIMA LLC ($87,859). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $833,651 | 37,859 | Trimmed |
| 2 | Calamos Advisors LLC | $372,402 | 16,912 | Trimmed |
| 3 | Cambridge Investment Research Advisors, Inc. | $299,000 | 13,564 | Trimmed |
| 4 | Calamos Wealth Management LLC | $276,769 | 12,569 | Hold |
| 5 | VIMA LLC | $87,859 | 3,990 | New |
| 6 | UBS Group AG | $46,242 | 2,100 | New |
| 7 | Ankerstar Wealth, LLC | $44,304 | 2,012 | Trimmed |
| 8 | Aptus Capital Advisors, LLC | $10,459 | 475 | Hold |
| 9 | MGO ONE SEVEN LLC | $0 | 0 | Exited |
| 10 | GUARDIAN WEALTH ADVISORS, LLC / NC | $0 | 0 | Exited |
| 11 | Spartan Wealth Advisory Services LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30