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 → $268K
8,361 sh × $32.00
Exec Sep 11
Filed Sep 15 · 4:08 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $1.0M
32,575 sh across 5 lots
Exec Aug 4
Filed Aug 6 · 4:14 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $757K
24,973 sh across 4 lots
Exec Jul 31
Filed Aug 4 · 4:35 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $144K
5,982 sh × $24.13
Exec Jul 27
Filed Jul 29 · 4:09 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $151K
6,214 sh × $24.29
Exec Jul 1
Filed Jul 6 · 4:25 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $130K
6,214 sh × $20.86
Exec Jun 1
Filed Jun 3 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $117K
5,308 sh × $22.08
Exec May 7
Filed May 11 · 5:30 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $156K
6,214 sh × $25.03
Exec Apr 6
Filed Apr 8 · 5:30 PM ET More filings →