Trade Summary

1 week ago, Oelschlager Kristen M, serving as Chief Operating Officer at CASTLE BIOSCIENCES INC (CSTL), sold 8,586 shares at $24.42 per share, for a total transaction value of $209,650.40. Following this transaction, Oelschlager Kristen M now holds 21,874 shares of CSTL.

This sale represents a 28.19% decrease in Oelschlager Kristen M's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Wednesday, July 1, 2026 and publicly disclosed via SEC Form 4 filing on Monday, July 6, 2026 at 4:24 PM ET, 5 days after the trade was made.

CASTLE BIOSCIENCES INC operates in the HEALTHCARE sector, specifically within the DIAGNOSTICS & RESEARCH industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.