CBOX — Calamos ETF Tr Institutional Holders · Q2 2026
Who owns Calamos ETF Tr (CBOX)? 4 institutions reported holding $1.08B in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Calamos Advisors LLC ($1.08B), Old Mission Capital LLC ($2.1M), Susquehanna International Group, LLP ($1.7M).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Calamos Advisors LLC | $1.08B | 10.7M | New |
| 2 | OLD MISSION CAPITAL LLC | $2.1M | 21,248 | New |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.7M | 16,485 | New |
| 4 | &PARTNERS | $401,184 | 2,980 | New |
Source: SEC Form 13F filings · as of 2026-06-30