CBOY — Calamos ETF Tr Institutional Holders · Q2 2026
Who owns Calamos ETF Tr (CBOY)? 10 institutions reported holding $3.70M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Susquehanna International Group, LLP ($1.2M), Calamos Advisors LLC ($584,674), ATX Financial Planning, LLC ($424,562).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.2M | 50,111 | Added |
| 2 | Calamos Advisors LLC | $584,674 | 23,874 | Trimmed |
| 3 | ATX Financial Planning, LLC | $424,562 | 17,336 | Trimmed |
| 4 | JANE STREET GROUP, LLC | $403,915 | 16,493 | Trimmed |
| 5 | Markin Asset Management, LP | $358,804 | 14,651 | Hold |
| 6 | Cambridge Investment Research Advisors, Inc. | $312,000 | 12,723 | Trimmed |
| 7 | Advus Financial Partners, LLC | $224,207 | 9,155 | New |
| 8 | HARBOUR INVESTMENTS, INC. | $162,712 | 6,644 | Hold |
| 9 | Ankerstar Wealth, LLC | $6,098 | 249 | Trimmed |
| 10 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30