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Who owns CPNSWhat CPNS owns — n/a

Who owns Calamos Nasdaq-100 Structured Alt Protection ETF – September?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.

Institutional ownership of CPNS from SEC Form 13F filings across 14 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, 14 institutions disclosed 226,549 shares of Calamos Nasdaq-100 Structured Alt Protection ETF – September worth $6.1M — about 29.3% of shares outstanding; the largest disclosed holder is Owen LaRue, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.

14

13F holders

$6.1M

value, 2026 filers

29.3%

of shares outstanding (226,549 sh)

1

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 CPNS's shares outstanding

#ManagerSharesValue% of fund% of co.Δ shares QoQ
1Owen LaRue, LLC73,800$2.1M0.7%9.6%-18.7%
2OLD MISSION CAPITAL LLC38,366$1.1M0.0%5%+20.2%
3COMMONWEALTH EQUITY SERVICES, LLC33,127$931,1500.0%4.3%0.0%
4OSAIC HOLDINGS, INC.13,057$366,9990.0%1.7%-11.8%
5Capital Analysts, LLC10,688$3000.0%1.4%0.0%
6Claro Advisors Inc.10,417$292,8100.0%1.3%-0.5%
7FIDUCIARY FINANCIAL ADVISORSNEW9,248$259,9470.0%1.2%new
8SUSQUEHANNA INTERNATIONAL GROUP, LLP8,548$240,2710.0%1.1%-66.1%
9Sigma Planning Corp8,343$234,5090.0%1.1%0.0%
10Creative Planning8,085$227,2570.0%1%0.0%
11Focus Financial Network, Inc.7,500$210,8140.0%1%0.0%
12BURKETT FINANCIAL SERVICES, LLC3,750$105,4060.0%0.5%0.0%
13Steward Partners Investment Advisory, LLC810$22,7680.0%0.1%0.0%
14CREATIVE FINANCIAL DESIGNS INC /ADV810$22,7680.0%0.1%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.

EvidInvest is an independent research and information tool. Figures are calculated from public SEC filings and third-party market data and are provided for informational and educational purposes only. EvidInvest does not provide investment advice, brokerage, or financial services, and is not affiliated with any company it covers. Verify all figures against primary sources before making any decision.