Derek J Maetzold

Pres. & Chief Exec. Officer

Derek J Maetzold (Pres. & Chief Exec. Officer) filed 19 Form 4 reports in the trailing twelve months (0 purchases, 19 sales), most often in Castle Biosciences, Inc. (CSTL). The largest single filing was $1.2M of CSTL (31,334 sh across 2 lots, as filed), executed Dec 15 2025.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 19 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$7.3M

shares × price, as filed

Last traded

Sep 11

Filed Sep 15

Median ADV $11.6M across their filed names

Open performance→

Volume by month

Buys $0 Sells $9.9M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Healthcare 19 filings

Sector per market data · by filing · past 12 months

Most traded names

CSTL

Castle Biosciences, Inc. CSTL · 0 buys · 24 sells 24 filings

Recent filings

CSTLSALE Castle Biosciences, Inc. View filing → $484K
18,650 sh × $25.93
Exec Mar 17
Filed Mar 19 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $789K
30,653 sh across 2 lots
Exec Mar 13
Filed Mar 17 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $1.0M
40,489 sh across 2 lots
Exec Mar 11
Filed Mar 13 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $128K
3,200 sh × $39.91
Exec Feb 3
Filed Feb 5 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $161K
4,017 sh × $40.01
Exec Jan 20
Filed Jan 22 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $102K
2,678 sh × $38.09
Exec Jan 5
Filed Jan 7 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $1.2M
31,334 sh across 2 lots
Exec Dec 15 2025
Filed Dec 17 2025 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $105K
2,678 sh × $39.23
Exec Dec 2 2025
Filed Dec 4 2025 · 5:30 PM ET More filings →