Disclosure 0001628280-26-066724-2

SEC FORM 4

$102,048.18

CASTLE BIOSCIENCES INC (CSTL)

Sale of 3,198 shares at $31.91 per share.

Reporting Person MAETZOLD DEREK J · Officer Title Pres. & Chief Exec. Officer · Transaction Code S

Traded Oct 19, 2026 · Disclosed Oct 21, 2026

Source: SEC Form 4 · 0001628280-26-066724 · filed 2026-10-21 · View filing →

Composed from the Form 4 as filed with the SEC. Share counts, prices and dates are the filing's own; the disclosure lag is counted in business days from the transaction date to the filing date. What is a Form 4?

Cite this card

Desq Long. "CASTLE BIOSCIENCES INC (CSTL)." Disclosed 2026-10-21. https://desqlong.com/cards/0001628280-26-066724-2 (retrieved 2026-10-22).