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CPST — Calamos S&P 500 Structured ALT ETF (September) Institutional Holders · Q3 2026

Who owns Calamos S&P 500 Structured ALT ETF (September) (CPST)? 1 institutions reported holding $129,249 in SEC 13F filings for Q3 2026 (period ended 2026-09-30). Largest holders: Burkett Financial Services, LLC ($129,249).

RankInstitutionValueSharesChange
1BURKETT FINANCIAL SERVICES, LLC$129,2494,598Added

Source: SEC Form 13F filings · as of 2026-09-30