Latest Period
Q2 2026
Security Snapshot
CALAMOS ETF TR - S&P 500 STRUCTUR (CPST) Institutional Ownership
CUSIP: 12811T886
13F Institutional Holders and Ownership History from Q3 2024 to Q2 2026
Institutions Reporting
14
Shares (Excl. Options)
562,787
Price
$27.81
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- Security type / class
- Equity / S&P 500 STRUCTUR
- Symbol
- CPST
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 562,787
- Total 13F value
- $15,651,856
- Portfolio coverage rank
- 0%
- Share change
- -125,658
- Value change
- -$3,479,504
- Number of holders
- 14
- SEC-reported price per share
- $27.81
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
1 identity field
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- CPST - CALAMOS ETF TR - S&P 500 STRUCTUR is tracked under CUSIP 12811T886.
- 14 institutions reported positions in Q2 2026.
- Schedule 13D/13G significant owner rows are not currently available.
Change
- Holder count moved from 19 to 14 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $22,679,125 to $15,651,856.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 14 institutions filings for Q2 2026.
Security key
12811T886
Latest holder period
Q2 2026
13F holders
14
13D/G owners
0
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 12811T886:
As of 30 Jun 2026, 14 institutional investors reported holding 562,787 shares of CALAMOS ETF TR - S&P 500 STRUCTUR (CPST).
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
8
Latest
Q2 2026
Rows shown
1-8 of 8
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 562,787 | $15,651,856 | -$3,479,504 | $27.81 | 14 |
| 2026 Q1 | 840,633 | $22,679,125 | +$3,466,228 | $26.98 | 19 |
| 2025 Q4 | 702,760 | $18,990,310 | +$3,265,218 | $27.02 | 19 |
| 2025 Q3 | 565,683 | $15,108,293 | +$1,306,808 | $26.71 | 17 |
| 2025 Q2 | 516,969 | $13,498,115 | +$119,131 | $26.11 | 14 |
| 2025 Q1 | 513,120 | $12,920,527 | -$1,894,568 | $25.18 | 13 |
| 2024 Q4 | 588,018 | $14,888,823 | +$3,288,732 | $25.32 | 16 |
| 2024 Q3 | 458,345 | $11,490,620 | +$11,490,620 | $25.07 | 13 |