MAETZOLD DEREK J — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

MAETZOLD DEREK J has filed 6 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $7.63M.

Profile

MAETZOLD DEREK J

Derek J. Maetzold is an accomplished executive in the biotechnology sector, currently serving as the President and Chief Executive Officer of Castle Biosciences Inc. He has played a significant role in the company's growth and development, focusing on innovative diagnostic solutions for skin cancer and other diseases.

RolePres. & Chief Exec. Officer, Director
Notability75/100

Board memberships

Awards & honors

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$24.29$7K
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$24.29$7K
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$24.29$7K
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$24.29$7K
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale1.2K$24.29$28K
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale1.4K$24.29$33K
2026-07-06CSTLCASTLE BIOSCIENCES INCS — Open-market sale6.2K$24.29$151K
2026-07-06CSTLCASTLE BIOSCIENCES INCM — Option exercise6.2K$2.39$15K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.66$6K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.66$6K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.66$6K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.66$6K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale1.2K$20.66$24K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale1.4K$20.66$28K
2026-06-17CSTLCASTLE BIOSCIENCES INCS — Open-market sale550$20.66$11K
2026-06-17CSTLCASTLE BIOSCIENCES INCM — Option exercise550$2.39$1K
2026-06-03CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.86$6K
2026-06-03CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.86$6K
2026-06-03CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.86$6K
2026-06-03CSTLCASTLE BIOSCIENCES INCS — Open-market sale278$20.86$6K

Companies — Last 90 Days

Frequently Asked Questions

Who is MAETZOLD DEREK J?

Derek J. Maetzold is an accomplished executive in the biotechnology sector, currently serving as the President and Chief Executive Officer of Castle Biosciences Inc. He has played a significant role in the company's growth and development, focusing on innovative diagnostic solutions for skin cancer and other diseases.…

How many SEC Form 4 filings has MAETZOLD DEREK J submitted recently?

6 primary Form 4 filings in the last 90 days, covering 1 company.

Has MAETZOLD DEREK J been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 187 open-market sales ($7.63M) across all tracked filings.

Where can I see all of MAETZOLD DEREK J's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

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