Disclosure 0001628280-26-065327-2

SEC FORM 4

$305,156.28

CASTLE BIOSCIENCES INC (CSTL)

Sale of 8,580 shares at $35.566 per share.

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

Traded Oct 5, 2026 · Disclosed Oct 7, 2026

Source: SEC Form 4 · 0001628280-26-065327 · filed 2026-10-07 · 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 2026-10-07. https://desqlong.com/cards/0001628280-26-065327-2 (retrieved 2026-10-08).