8 institutions reported holding $4.0M of CALAMOS ETF TR (CBTL) in SEC 13F filings for 2026-06-30. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($2.6M), ATX Financial Planning, LLC ($529,028), CGN Advisors LLC ($281,360), JANE STREET GROUP, LLC ($257,964), WINNOW WEALTH LLC ($227,422). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.6M | 153,012 | Added |
| 2 | ATX Financial Planning, LLC | $529,028 | 30,571 | Added |
| 3 | CGN Advisors LLC | $281,360 | 16,259 | Added |
| 4 | JANE STREET GROUP, LLC | $257,964 | 14,907 | New |
| 5 | WINNOW WEALTH LLC | $227,422 | 13,142 | Added |
| 6 | MCDONALD PARTNERS LLC | $7,874 | 455 | New |
| 7 | UBS Group AG | $1,696 | 98 | Added |
| 8 | OLD MISSION CAPITAL LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30