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Castle Biosciences (CSTL): Director sold ~$43K

Derek J Maetzold, Director at Castle Biosciences, sold ~$43K of Castle Biosciences shares.

~$43K
Approx. value · 2,017 sh @ $21.52
61K
Holds after · shares reported
Traded
Apr 21, 2025
Filed
Apr 23, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Feb 20, 2025InsiderCFO sold ~$215K of CSTL shares in the open market
  2. Mar 4, 2025Insider · 1 personInsiders: 7 sales (~$119K)
  3. Mar 7, 2025Insider · 1 personInsiders: 14 sales (~$544K)
  4. Mar 10, 2025InsiderDirector sold ~$42K of CSTL shares in the open market
  5. Mar 26, 2025Insider · 1 personInsiders: 7 sales (~$115K)
  6. Apr 8, 2025Insider · 1 personInsiders: 7 sales (~$20K)
  7. Apr 9, 2025Insider · 1 personInsiders: 7 sales (~$94K)
  8. Apr 21, 2025 · this disclosureInsiderDirector sold ~$43K of CSTL shares in the open market

What came next

  1. Apr 21, 2025Insider · 1 personInsiders: 6 sales (~$78K)
  2. Jun 27, 2025Insider · 1 personInsiders: 7 sales (~$458K)
  3. Aug 13, 2025InsiderDirector sold ~$839K of CSTL shares in the open market
  4. Aug 15, 2025InsiderDirector sold ~$27K of CSTL shares in the open market
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Castle Biosciences

For Castle Biosciences, OQRO holds 31 insider filings (SEC Form 4 or Form 144), 1 fund holdings report (13F) and 1 federal contract award dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its CSTL page.

Other recent filings by Derek J Maetzold, Pres. & Chief Exec. Officer

The full history of Derek J Maetzold, Pres. & Chief Exec. Officer is on the profile page.

How this filing works

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Other disclosures at Castle Biosciences

Everything OQRO holds on this company is on its CSTL page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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