7 institutions reported holding $1.8M of CALAMOS ETF TR (CBTA) in SEC 13F filings for 2026-03-31. Largest institutional holders: JANE STREET GROUP, LLC ($959,167), Calamos Advisors LLC ($612,400), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($242,420), UBS Group AG ($10,768), Ankerstar Wealth, LLC ($6,495). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLC | $959,167 | 44,892 | Added |
| 2 | Calamos Advisors LLC | $612,400 | 28,657 | Added |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $242,420 | 11,346 | New |
| 4 | UBS Group AG | $10,768 | 504 | Trimmed |
| 5 | Ankerstar Wealth, LLC | $6,495 | 304 | Trimmed |
| 6 | Anfield Capital Management, LLC | $4,145 | 194 | Hold |
| 7 | HARBOUR INVESTMENTS, INC. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31