Who owns Calamos S&P 500 Structured Alt Protection ETF – November?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CPSN from SEC Form 13F filings across 17 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 17 institutions disclosed 654,231 shares of Calamos S&P 500 Structured Alt Protection ETF – November worth $18.0M — about 58.2% of shares outstanding; the largest disclosed holder is Calamos Advisors LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
17
13F holders
$18.0M
value, 2026 filers
58.2%
of shares outstanding (654,231 sh)
0
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of CPSN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Calamos Advisors LLC | 346,379 | $9.6M | 0.0% | 30.8% | -2.9% |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 102,458 | $2.8M | 0.0% | 9.1% | +885.1% |
| 3 | HARBOUR INVESTMENTS, INC. | 47,654 | $1.3M | 0.0% | 4.2% | -20.9% |
| 4 | COMMONWEALTH EQUITY SERVICES, LLC | 46,143 | $1.3M | 0.0% | 4.1% | -4.2% |
| 5 | Advisor OS, LLC | 39,263 | $1.1M | 0.1% | 3.5% | -0.2% |
| 6 | OLD MISSION CAPITAL LLC | 13,790 | $381,776 | 0.0% | 1.2% | -8.1% |
| 7 | JIM SAULNIER & ASSOCIATES, LLC | 13,142 | $363,836 | 0.1% | 1.2% | -0.4% |
| 8 | Calamos Wealth Management LLC | 11,939 | $330,472 | 0.0% | 1.1% | -51.4% |
| 9 | Next Level Private LLC | 8,385 | $232,139 | 0.0% | 0.7% | 0.0% |
| 10 | Waverly Advisors, LLC | 7,960 | $220,373 | 0.0% | 0.7% | 0.0% |
| 11 | BURKETT FINANCIAL SERVICES, LLC | 3,980 | $110,186 | 0.0% | 0.4% | 0.0% |
| 12 | CENTAURUS FINANCIAL, INC. | 3,922 | $109 | 0.0% | 0.3% | 0.0% |
| 13 | ROYAL BANK OF CANADA | 3,899 | $108,000 | 0.0% | 0.3% | 0.0% |
| 14 | MORGAN STANLEY | 2,000 | $55,370 | 0.0% | 0.2% | 0.0% |
| 15 | Capital Analysts, LLC | 1,852 | $51 | 0.0% | 0.2% | 0.0% |
| 16 | CREATIVE FINANCIAL DESIGNS INC /ADV | 1,456 | $40,309 | 0.0% | 0.1% | +2.8% |
| 17 | New England Capital Financial Advisors LLC | 9 | $250 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.