Castle Biosciences, Inc.

CSTL · Healthcare · Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers,…

Castle Biosciences, Inc. (CSTL), in the Healthcare sector, has 45 disclosed filings on Paydirt over the trailing twelve months from 5 corporate insiders: 0 purchases and 45 sales. Filers took a median of 2 days from execution to disclosure, and the most recent trade was executed Nov 2 and filed Nov 4. The most active filer was Derek J Maetzold with 22 filings. Data as of Nov 7 2026.

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Filings, ttm

0 buys · 45 sells

Traders, ttm

5 insiders

Volume, ttmiDollar value disclosed in the window

$14.5M

estimated for Congress, as filed for insiders

Median delay

execution to disclosure

Last traded

Nov 2

Filed Nov 4

ADViAverage daily dollar volume

$11.6M

market data

Share price · 12M

$32.52 (-6.4%)

Adjusted for splits and dividends.

Volume by month

Buys $0 Sells $20.4M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months

Derek J Maetzold Pres. & Chief Exec. Officer 28 filings · 0 buys, 28 sales KO

Kristen M Oelschlager Chief Operating Officer 11 filings · 0 buys, 11 sales TJ

Tobin W Juvenal Chief Commercial Officer 10 filings · 0 buys, 10 sales FS

Frank Stokes Chief Financial Officer 7 filings · 0 buys, 7 sales DB

Daniel Bradbury Director 2 filings · 0 buys, 2 sales GC

G Bradley Cole Director 1 filing · 0 buys, 1 sale

Recent filings

Derek J MaetzoldSALE Pres. & Chief Exec. Officer $373K
10,371 sh across 2 lots
Exec Nov 2
Filed Nov 4 · 4:07 PM ET Tobin W JuvenalSALE Chief Commercial Officer $196K
5,341 sh × $36.62
Exec Oct 28
Filed Oct 30 · 4:06 PM ET Tobin W JuvenalSALE Chief Commercial Officer $109K
3,288 sh × $33.08
Exec Oct 26
Filed Oct 28 · 4:08 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $376K
11,778 sh across 2 lots
Exec Oct 19
Filed Oct 21 · 4:18 PM ET Tobin W JuvenalSALE Chief Commercial Officer $111K
3,288 sh × $33.64
Exec Oct 12
Filed Oct 14 · 4:06 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $419K
11,778 sh across 2 lots
Exec Oct 5
Filed Oct 7 · 4:10 PM ET Kristen M OelschlagerSALE Chief Operating Officer $100K
2,807 sh × $35.75
Exec Oct 1
Filed Oct 5 · 4:07 PM ET Tobin W JuvenalSALE Chief Commercial Officer $197K
5,543 sh × $35.50
Exec Sep 29
Filed Oct 1 · 4:21 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $416K
11,778 sh across 2 lots
Exec Sep 21
Filed Sep 23 · 4:27 PM ET Tobin W JuvenalSALE Chief Commercial Officer $223K
6,600 sh across 2 lots
Exec Sep 14
Filed Sep 16 · 4:20 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $268K
8,361 sh × $32.00
Exec Sep 11
Filed Sep 15 · 4:08 PM ET Tobin W JuvenalSALE Chief Commercial Officer $317K
9,050 sh × $35.04
Exec Aug 25
Filed Aug 27 · 4:38 PM ET Kristen M OelschlagerSALE Chief Operating Officer $838K
24,602 sh across 3 lots
Exec Aug 24
Filed Aug 26 · 4:16 PM ET Frank StokesSALE Chief Financial Officer $742K
24,908 sh × $29.77
Exec Aug 14
Filed Aug 18 · 4:10 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $1.0M
32,575 sh across 5 lots
Exec Aug 4
Filed Aug 6 · 4:14 PM ET Kristen M OelschlagerSALE Chief Operating Officer $135K
4,486 sh × $30.00
Exec Aug 3
Filed Aug 5 · 4:18 PM ET Tobin W JuvenalSALE Chief Commercial Officer $450K
15,419 sh across 2 lots
Exec Jul 31
Filed Aug 4 · 4:36 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $757K
24,973 sh across 4 lots
Exec Jul 31
Filed Aug 4 · 4:35 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $144K
5,982 sh × $24.13
Exec Jul 27
Filed Jul 29 · 4:09 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $151K
6,214 sh × $24.29
Exec Jul 1
Filed Jul 6 · 4:25 PM ET Kristen M OelschlagerSALE Chief Operating Officer $200K
8,186 sh × $24.40
Exec Jul 1
Filed Jul 6 · 4:24 PM ET Kristen M OelschlagerSALE Chief Operating Officer $178K
8,587 sh × $20.71
Exec Jun 16
Filed Jun 18 · 5:30 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $130K
6,214 sh × $20.86
Exec Jun 1
Filed Jun 3 · 5:30 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $117K
5,308 sh × $22.08
Exec May 7
Filed May 11 · 5:30 PM ET Derek J MaetzoldSALE Pres. & Chief Exec. Officer $156K
6,214 sh × $25.03
Exec Apr 6
Filed Apr 8 · 5:30 PM ET