Trade Summary

3 days ago, Oelschlager Kristen M, serving as Chief Operating Officer at CASTLE BIOSCIENCES INC (CSTL), sold 8,587 shares at $20.71 per share, for a total transaction value of $177,836.77. Following this transaction, Oelschlager Kristen M now holds 30,460 shares of CSTL.

This sale represents a 21.99% 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 Tuesday, June 16, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, June 18, 2026 at 4:19 PM ET, 2 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.