Disclosure 0001628280-26-059816-1

SEC FORM 4

$29,702.92

CASTLE BIOSCIENCES INC (CSTL)

Acquisition (code M) of 12,428 shares at $2.39 per share.

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

Traded Aug 28, 2026 · Disclosed Sep 1, 2026

Source: SEC Form 4 · 0001628280-26-059816 · filed 2026-09-01 · 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 2026-09-01. https://desqlong.com/cards/0001628280-26-059816-1 (retrieved 2026-09-26).