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CSTL
Ticker

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 39 disclosed filings on Paydirt over the trailing twelve months from 5 corporate insiders: 0 purchases and 39 sales, 1 filed past the deadline. Filers took a median of 2 days from execution to disclosure, and the most recent trade was executed Sep 15 and filed Sep 16. The most active filer was Derek J Maetzold with 24 filings.

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Filings, ttm
39
0 buys · 39 sells · 1 late
Traders, ttm
5
5 insiders
Volume, ttmiDollar value disclosed in the window
$14.4M
estimated for Congress, as filed for insiders
Median delay
2d
execution to disclosure
Last traded
Sep 15
Filed Sep 16
ADViAverage daily dollar volume
$11.6M
market data
Share price · 12M
$33.50 (+39.1%)
$43.04$30.60$18.15Sep 22 2025Mar 12Aug 28

Adjusted for splits and dividends.

Volume by month
$4.3M$2.1M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $148KNov 2024 · sells $417KDec 2024 · sells $1.0MFeb 2025 · sells $356KMar 2025 · sells $411KJul 2025 · sells $405KAug 2025 · sells $1.5MNov 2025 · sells $2.1MDec 2025 · sells $2.7MJan 2026 · sells $263KFeb 2026 · sells $128KMar 2026 · sells $3.3MApr 2026 · sells $156KMay 2026 · sells $117KJun 2026 · sells $307KJul 2026 · sells $495KAug 2026 · sells $4.3MSep 2026 · sells $490K
Buys $0 Sells $18.6M

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

Who filed
DM Derek J Maetzold Pres. & Chief Exec. Officer 24 filings KO Kristen M Oelschlager Chief Operating Officer 10 filings TJ Tobin W Juvenal Chief Commercial Officer 8 filings FS Frank Stokes Chief Financial Officer 7 filings DB Daniel Bradbury Director 3 filings GC G Bradley Cole Director 1 filing
Recent filings
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
Derek J MaetzoldSALE Pres. & Chief Exec. Officer $484K
18,650 sh × $25.93
Exec Mar 17
Filed Mar 19 · 5:30 PM ET
Derek J MaetzoldSALE Pres. & Chief Exec. Officer $789K
30,653 sh across 2 lots
Exec Mar 13
Filed Mar 17 · 5:30 PM ET
Tobin W JuvenalSALE Chief Commercial Officer $527K
20,863 sh × $25.24
Exec Mar 12
Filed Mar 16 · 5:30 PM ET
Derek J MaetzoldSALE Pres. & Chief Exec. Officer $1.0M
40,489 sh across 2 lots
Exec Mar 11
Filed Mar 13 · 5:30 PM ET
G Bradley ColeSALE Director $135K
4,748 sh × $28.44
Exec Mar 5
Filed Mar 9 · 5:30 PM ET
Frank StokesSALE Chief Financial Officer $168K
6,001 sh × $27.98
Exec Mar 5
Filed Mar 9 · 5:30 PM ET
Frank StokesSALE Chief Financial Officer $145K
5,300 sh × $27.32
Exec Mar 3
Filed Mar 5 · 5:30 PM ET
Derek J MaetzoldSALE Pres. & Chief Exec. Officer $128K
3,200 sh × $39.91
Exec Feb 3
Filed Feb 5 · 5:30 PM ET
Derek J MaetzoldSALE Pres. & Chief Exec. Officer $161K
4,017 sh × $40.01
Exec Jan 20
Filed Jan 22 · 5:30 PM ET