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
Apr 21, 2026Apr 23 8:16 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
550$2.396,968(D)

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Apr 6, 2026Apr 8 8:34 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
6,214$2.397,518(D)

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Mar 26, 2026Mar 30 10:29 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
550$2.3913,732(D)

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Mar 26, 2026Mar 30 10:27 PMRodney CottonDirector
Option Exercise
5,3295,330(D)

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Mar 11, 2026Mar 13 8:10 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
6,226$2.3914,282(D)

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Mar 5, 2026Mar 9 8:12 PMBradley G ColeDirector
Option Exercise
4,748$3.3820,000(D)

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Mar 4, 2026Mar 5 10:18 PMTobin W JuvenalChief Commercial Officer
Option Exercise
25,77135,878(D)

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Mar 3, 2026Mar 5 10:18 PMTobin W JuvenalChief Commercial Officer
Grant/Award
48,36748,367(D)

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Mar 4, 2026Mar 5 10:16 PMKristen M OelschlagerChief Operating Officer
Option Exercise
25,77135,878(D)

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Mar 3, 2026Mar 5 10:16 PMKristen M OelschlagerChief Operating Officer
Grant/Award
48,36748,367(D)

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Mar 4, 2026Mar 5 10:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
59,09783,961(D)

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Mar 3, 2026Mar 5 10:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Grant/Award
102,597102,597(D)

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Mar 4, 2026Mar 5 10:08 PMFrank StokesChief Financial Officer
Option Exercise
27,946$3.3814,912(D)

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Mar 3, 2026Mar 5 10:08 PMFrank StokesChief Financial Officer
Grant/Award
48,36748,367(D)

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