Institutional Ownership
Calamos ETF Tr
CUSIP 12811T886S&P 500 STRUCTURCPSTQ1 2026
13D / 13G Filings
0
Schedule 13D/13G on record
Beneficial Filers
0
Distinct reporting persons
Largest Stake
—
Max % of class reported
Institutional Holders
19
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
Schedule 13D (activist) & 13G (passive) 5%+ ownership filings
No 13D/13G filings on record yet
Schedule 13D/13G beneficial-ownership filings from 2020–present are ingested from SEC EDGAR. Coverage expands as the backfill and daily crawler run.
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Calamos Advisors LLC | 433.0K | $11.68M |
| 2 | Osaic Holdings, Inc. | 104.3K | $2.81M |
| 3 | Calamos Wealth Management LLC | 102.3K | $2.76M |
| 4 | Old Mission Capital LLC | 28.6K | $770.5K |
| 5 | Camelot Portfolios, LLC | 25.2K | $680.8K |
| 6 | Commonwealth Equity Services, LLC | 20.5K | $552.5K |
| 7 | Susquehanna International Group, LLP | 19.2K | $519.1K |
| 8 | Blue Water Asset Management | 16.6K | $446.5K |
| 9 | Leclair Wealth Partners LLC | 16.6K | $446.5K |
| 10 | Grantvest Financial Group LLC | 12.2K | $329.4K |