Calamos S&P 500 STR Alt AprCPSPETF
13F holders, Q3 2025 (September 30)11holders +2
3new positions
1sold out
$25.74avg. 13F price*
At the end of Q3 2025, 11 institutions reported holding Calamos S&P 500 STR Alt Apr (CPSP) in their 13F filings, up 2 from Q2 2025. 3 opened new positions and 1 sold out. The largest holders were Calamos Advisors LLC ($6.8M), Calamos Wealth Management LLC ($1.4M) and Old Mission Capital LLC ($924K).
- Company
- Calamos S&P 500 STR Alt Apr
- CUSIP
- 12811T753
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $1.3M |
| Exits | 1 | $243K |
All 13F filers, Q2 2025 → Q3 2025: 50,236 shares bought and 19,455 shares sold, net +30,781 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 11 holders
| Calamos Advisors LLC | 0.04% | Reduce -0.8% | 263,073 | $6.8M |
| Calamos Wealth Management LLC | 0.05% | Reduce -11.0% | 52,508 | $1.4M |
| Old Mission Capital LLC | 0.03% | New | 35,876 | $924K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -6.4% | 17,081 | $440K |
| Jim Saulnier & Associates, LLC | 0.18% | No change | 12,746 | $328K |
| Susquehanna International Group, LLP | 0.00% | New | 12,640 | $325K |
| Advisory Services Network, LLC | 0.00% | No change | 10,612 | $273K |
| Centaurus Financial, Inc. | 0.01% | No change | 7,840 | $202K |
| UBS Group AG | 0.00% | Add +32.7% | 1,992 | $51K |
| Capital Analysts, LLC | 0.00% | New | 1,229 | $32K |
| New England Capital Financial Advisors LLC | 0.01% | No change | 593 | $15K |
"% of holder's portfolio" is CPSP's weight in each manager's 13F, not the share of Calamos S&P 500 STR Alt Apr the manager owns.