r.rotation.to⌕ Search stocks, people, sectors
Request a free account

Follow the people · Insider

DM

Derek J. Maetzold

Insider · Pres. & Chief Exec. Officer · CSTL

Derek J. Maetzold files insider transactions with the SEC as a pres. & chief exec. officer of Castle Biosciences (CSTL). We hold 28 disclosed purchases and sales filed since 3 March 2006, 10 of them in the last 90 days.

  • Files forCSTL
  • Disclosed buys and sells28 in all, 10 in the last 90 days
  • Last disclosure1 September 2026

Positions held

2 posts we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 29 July 2019 — 28 August 2026Pres. & Chief Exec. Officer · Castle Biosciences (CSTL)1,745 Form 4 lines · source: SEC Form 4
  • Filed 2 March 2006 — 1 April 2008V.P., Marketing & Sales · Encysive Pharmaceuticals (ENCY)10 Form 4 lines · source: SEC Form 4

Everything they disclosed

120 entries, newest first — one per disclosure report, one per Form 4 line

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.