Derek Maetzold Insider Trades & Stock Holdings

Pres. & Chief Exec. Officer · Castle Biosciences, Inc. · Latest filing Jun 15, 2026

Derek Maetzold, Pres. & Chief Exec. Officer at Castle Biosciences, Inc. has 1 Form 4 trade on file since Jun 15, 2026. Latest filing: acquired 550 shares of $CSTL on Jun 15, 2026 at $2.39.

Trades on file

1

Open-market bought

$0

Open-market sold

$0

Net open-market

$0

Latest filing

Jun 15, 2026

All insider trades by Derek Maetzold

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 15, 2026	$CSTL	Buy (Option exercise)	550	$2.39	$1.31K			+2.6%	+16.3%		Pres. & Chief Exec. Officer		Read

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Derek Maetzold traded

• $CSTL

Frequently asked questions

What was Derek Maetzold's latest insider trade?

acquired 550 shares of $CSTL on Jun 15, 2026 at $2.39.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.