Form 4 Tracker
CASTLE BIOSCIENCES INC
CSTL

36 insider filings · Latest: Jun 16, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Mar 11, 2026Mar 13 8:10 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
20,946$26.11$546.9K3,336(I)

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Mar 12, 2026Mar 12 8:38 PMTobin Juvenal
Proposed Sale
20,863$25.32$528.3K

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Mar 11, 2026Mar 11 8:52 PMDerek Maetzold
Proposed Sale
94,204$26.13$2.5M

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Mar 5, 2026Mar 9 8:13 PMFrank StokesChief Financial Officer
Sale
6,001$27.98$167.9K60,085(D)

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Mar 5, 2026Mar 9 8:12 PMBradley G ColeDirector
Sale
7,403$28.47$210.7K19,309(D)

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Mar 3, 2026Mar 5 10:08 PMFrank StokesChief Financial Officer
Sale
7,000$27.44$192.1K52,483(D)

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Mar 5, 2026Mar 5 9:28 PMFRANKLIN STOKES
Proposed Sale
6,001$28.17$169.0K

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Mar 5, 2026Mar 5 9:04 PMGORDON B. COLE
Proposed Sale
7,403$28.47$210.7K

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Mar 3, 2026Mar 3 9:33 PMFRANKLIN STOKES
Proposed Sale
7,000$27.99$195.9K

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Feb 4, 2026Feb 5 9:17 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
817$37.99$31.0K83,698(D)

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Feb 3, 2026Feb 5 9:17 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
3,200$39.91$127.7K84,515(D)

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Jan 20, 2026Jan 22 9:15 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
4,017$40.01$160.7K87,715(D)

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Jan 5, 2026Jan 5 10:09 PMDerek Maetzold
Proposed Sale
12,051$39.00$470.0K

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Dec 17, 2025Dec 17 9:49 PMKristen M. Oelschlager
Proposed Sale
14,888$39.05$581.4K

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Dec 15, 2025Dec 15 11:21 PMDerek Maetzold
Proposed Sale
33,685$38.88$1.3M

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Dec 11, 2025Dec 11 9:30 PMTOBIN JUVENAL
Proposed Sale
13,200$37.48$494.7K

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Dec 11, 2025Dec 11 9:07 PMFRANKLIN M. STOKES
Proposed Sale
4,496$37.45$168.4K

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Nov 25, 2025Nov 25 10:11 PMDerek Maetzold
Proposed Sale
10,712$39.93$427.7K

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Nov 24, 2025Nov 24 9:28 PMTOBIN JUVENAL
Proposed Sale
1,301$37.88$49.3K

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Nov 11, 2025Nov 12 2:32 PMKristen M. Oelschlager
Proposed Sale
18,932$34.74$657.7K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 15, 2026Jun 17 9:39 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
550$2.3991,881(D)

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Jun 1, 2026Jun 3 8:15 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
6,214$2.3992,431(D)

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May 28, 2026Jun 1 8:48 PMTiffany OlsonDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 8:48 PMEllen GoldbergDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 8:48 PMMiles HarrisonDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 8:47 PMRodney CottonDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 8:47 PMKim CapleDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 8:44 PMDaniel BradburyDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 8:43 PMBradley G ColeDirector
Grant/Award
11,76611,766(D)

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May 22, 2026May 27 8:20 PMBradley G ColeDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 8:18 PMDaniel BradburyDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 8:18 PMMiles HarrisonDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 8:17 PMTiffany OlsonDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 8:17 PMEllen GoldbergDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 8:16 PMKim CapleDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 8:16 PMRodney CottonDirector
Option Exercise
13,6670(D)

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May 21, 2026May 26 8:06 PMTobin W JuvenalChief Commercial Officer
Option Exercise
11,210$3.380(D)

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May 21, 2026May 22 8:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
420$2.39204(D)

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May 20, 2026May 22 8:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
130$2.39624(D)

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May 7, 2026May 11 8:06 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
6,214$2.39754(D)

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