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Derek J Maetzold (Pres. & Chief Exec. Officer) filed 22 Form 4 reports in the trailing twelve months (0 purchases, 22 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. Data as of Nov 8 2026.
Add to watchlistReturn, 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
22
0 buys · 22 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$8.5M
shares × price, as filed
Last traded
Nov 2
Filed Nov 4
Median ADV $11.6M across their filed names
Open performance→Volume by month
Buys $0
Sells $11.4M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
22 filings
Sector per market data · by filing · past 12 months
Most traded names
CSTLRecent filings
CSTLSALE
Castle Biosciences, Inc.
View filing →
$373K10,371 sh across 2 lots
Exec Nov 2
Filed Nov 4 · 4:07 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $376K
11,778 sh across 2 lots
Exec Oct 19
Filed Oct 21 · 4:18 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $419K
11,778 sh across 2 lots
Exec Oct 5
Filed Oct 7 · 4:10 PM ET CSTLSALE Castle Biosciences, Inc. View filing → $416K
11,778 sh across 2 lots
Exec Sep 21
Filed Sep 23 · 4:27 PM ET 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 More filings →