Form 4 Tracker
CASTLE BIOSCIENCES INC
CSTL

36 insider filings · Latest: Jun 16, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Nov 11, 2025Nov 12 12:03 PMTOBIN JUVENAL
Proposed Sale
5,393$34.74$187.4K

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Nov 11, 2025Nov 12 11:58 AMFRANKLIN STOKES
Proposed Sale
5,388$34.74$187.2K

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Nov 4, 2025Nov 4 9:53 PMDerek Maetzold
Proposed Sale
13,390$31.63$423.5K

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Oct 2, 2025Oct 2 9:17 PMDerek Maetzold
Proposed Sale
4,017$22.23$89.3K

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Aug 27, 2025Aug 27 10:15 PMKristen M. Oelschlager
Proposed Sale
18,007$21.35$384.4K

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Aug 27, 2025Aug 27 8:56 PMKristen M. Oelschlager
Proposed Sale
25,355$21.35$541.3K

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Aug 15, 2025Aug 15 9:19 PMDerek Maetzold
Proposed Sale
4,017$20.09$80.7K

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Aug 13, 2025Aug 13 9:30 PMDerek Maetzold
Proposed Sale
43,019$19.41$835.0K

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Jun 27, 2025Jun 27 10:11 PMDerek Maetzold
Proposed Sale
16,932$20.35$344.6K

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Apr 8, 2025Apr 8 8:56 PMDerek Maetzold
Proposed Sale
16,932$18.60$314.9K

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Mar 7, 2025Mar 7 9:57 PMDerek Maetzold
Proposed Sale
34,821$20.21$703.7K

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Mar 4, 2025Mar 4 10:28 PMDerek Maetzold
Proposed Sale
5,687$22.23$126.4K

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Feb 5, 2025Feb 5 9:25 PMDaniel Bradbury
Proposed Sale
7,867$28.12$221.2K

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Jan 6, 2025Jan 6 9:29 PMTOBIN JUVENAL
Proposed Sale
2,230$28.61$63.8K

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Dec 13, 2024Dec 13 10:00 PMDerek Maetzold
Proposed Sale
48,303$28.87$1.4M

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Dec 3, 2024Dec 3 10:14 PMDaniel Bradbury
Proposed Sale
15,734$30.78$484.3K

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Nov 4, 2024Nov 4 10:34 PMDerek Maetzold
Proposed Sale
15,381$33.64$517.4K

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Nov 1, 2024Nov 1 8:49 PMTOBIN JUVENAL
Proposed Sale
12,000$34.67$416.0K

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Oct 7, 2024Oct 7 9:33 PMDaniel Bradbury
Proposed Sale
15,734$29.52$464.5K

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Sep 9, 2024Sep 9 9:18 PMDerek Maetzold
Proposed Sale
20,583$29.33$603.7K

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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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