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
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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