Castle Biosciences begins dual listing on Nasdaq Texas as CSTL expands presence

Castle Biosciences begins dual listing on Nasdaq Texas as CSTL expands presence
Castle Biosciences joins Nasdaq Texas

Castle Biosciences has commenced trading its common stock on Nasdaq Texas, marking a significant expansion in its market presence.

The company, which maintains its primary listing on The Nasdaq Global Market, began trading on the newly established exchange on August 17 under its current ticker symbol CSTL. Nasdaq Texas aims to serve as a new platform for listed companies, providing an additional avenue for liquidity and investor engagement.

Castle Biosciences recently outlined new approaches in advanced diagnostics and data innovation at the Future Biotech Expo 2026. The company’s chief operating officer has also detailed how local alliances supported its expansion in Greater Phoenix. These steps highlight recent milestones in Castle Biosciences' development.

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