Form 4 Tracker
CASTLE BIOSCIENCES INC
CSTL

36 insider filings · Latest: Jun 16, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jul 1, 2026Jul 1 9:35 PMDerek Maetzold
Proposed Sale
23,844$24.71$589.2K

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Jun 16, 2026Jun 18 8:19 PMKristen M OelschlagerChief Operating Officer
Sale
8,587$20.71$177.8K30,460(D)

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Jun 15, 2026Jun 17 9:39 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
4,172$20.66$86.2K12,646(I)

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Jun 16, 2026Jun 16 8:35 PMKRISTEN OELSCHLAGER
Proposed Sale
29,911$20.66$618.0K

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Jun 1, 2026Jun 3 8:15 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
9,836$20.86$205.1K1,668(I)

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Jun 1, 2026Jun 1 9:39 PMDerek Maetzold
Proposed Sale
14,008$20.97$293.7K

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May 21, 2026May 22 8:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
3,183$20.20$64.3K1,946(I)

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May 20, 2026May 22 8:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
989$20.00$19.8K2,158(I)

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May 7, 2026May 11 8:06 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
9,836$22.15$217.9K2,224(I)

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May 7, 2026May 7 8:56 PMDerek Maetzold
Proposed Sale
14,008$19.24$269.5K

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Apr 21, 2026Apr 23 8:16 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
4,172$25.10$104.7K2,502(I)

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Apr 6, 2026Apr 8 8:34 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
9,836$25.03$246.2K2,780(I)

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Mar 26, 2026Mar 30 10:29 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
4,172$25.55$106.6K3,058(I)

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Mar 26, 2026Mar 26 9:36 PMDerek Maetzold
Proposed Sale
18,180$24.70$449.0K

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Mar 18, 2026Mar 19 8:21 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
650$25.39$16.5K21,479(D)

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Mar 17, 2026Mar 19 8:21 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
18,650$25.93$483.6K22,129(D)

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Mar 16, 2026Mar 17 8:36 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
17,575$25.97$456.4K40,779(D)

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Mar 13, 2026Mar 17 8:36 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
13,204$25.45$336.0K58,354(D)

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Mar 12, 2026Mar 16 8:07 PMTobin W JuvenalChief Commercial Officer
Sale
20,863$25.24$526.6K86,825(D)

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Mar 12, 2026Mar 13 8:10 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
23,179$25.28$585.9K71,558(D)

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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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