Derek J. Maetzold

Companies

• CASTLE BIOSCIENCES INCBoard member Jul 24, 2019 to now¹
• CASTLE BIOSCIENCES INCPres. & Chief Exec. Officer Jul 24, 2019 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• CBCASTLE BIOSCIENCES INC CSTL44,695 shares²$1.4M at $32.28Sep 23, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 21, 2026Sold 2,718 shares at $35.33 of CASTLE BIOSCIENCES INC²
• Sep 21, 2026Sold 3,198 shares at $35.33 of CASTLE BIOSCIENCES INC²
• Sep 21, 2026Sold 8,580 shares at $35.33 of CASTLE BIOSCIENCES INC²
• Sep 21, 2026Exercised options 8,580 shares at $2.39 of CASTLE BIOSCIENCES INC²
• Sep 11, 2026Sold 71 shares at $32.78 of CASTLE BIOSCIENCES INC³
• Sep 11, 2026Sold 83 shares at $32.78 of CASTLE BIOSCIENCES INC³
• Sep 11, 2026Sold 223 shares at $32.78 of CASTLE BIOSCIENCES INC³
• Sep 11, 2026Sold 2,656 shares at $32.00 of CASTLE BIOSCIENCES INC³
• Sep 11, 2026Sold 3,124 shares at $32.00 of CASTLE BIOSCIENCES INC³
• Sep 11, 2026Sold 8,361 shares at $32.00 of CASTLE BIOSCIENCES INC³
• Sep 11, 2026Exercised options 8,584 shares at $2.39 of CASTLE BIOSCIENCES INC³
• Aug 28, 2026Sold 21 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 21 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 21 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 21 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 177 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 209 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 956 shares at $33.88 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 257 shares at $33.14 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 257 shares at $33.14 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 257 shares at $33.14 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 257 shares at $33.14 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 2,129 shares at $33.14 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 2,505 shares at $33.14 of CASTLE BIOSCIENCES INC⁴
• Aug 28, 2026Sold 11,472 shares at $33.14 of CASTLE BIOSCIENCES INC⁴