Welcome to our dedicated page for Cabaletta Bio SEC filings (Ticker: CABA), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Cabaletta Bio’s latest 10-K can read like an immunology textbook—dense tables on CARTA and CAART trial cohorts, layered milestone clauses, and pages of manufacturing risk factors. If you have ever searched “Cabaletta Bio SEC filings explained simply” or hunted for dosing data buried deep within, you know the challenge. Stock Titan turns those hundreds of pages into concise intelligence you can act on.
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Cabaletta Bio (CABA) filed a Schedule 13G disclosing that Citadel Advisors LLC, Citadel Securities LLC, related entities and founder Kenneth Griffin collectively own 4,818,560 common shares, or approximately 5.2 % of the company’s 92.94 million shares outstanding.
Citadel Advisors–managed funds hold 4,687,280 shares, while market-making affiliate Citadel Securities holds 131,280 shares. All voting and dispositive power is reported as shared; none of the reporting persons has sole authority. The 5 % threshold was reached on 12 June 2025, triggering the filing. No additional financial results, risk factors, or strategic initiatives are included.