Form 4 Tracker
CASTLE BIOSCIENCES INC
CSTL

26 insider filings · Latest: Jun 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 1, 2026Jun 3 4:15 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
9,836$20.86$205.1K1,668(I)

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May 21, 2026May 22 4:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
3,183$20.20$64.3K1,946(I)

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May 20, 2026May 22 4:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
989$20.00$19.8K2,158(I)

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May 7, 2026May 11 4:06 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
9,836$22.15$217.9K2,224(I)

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

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Apr 6, 2026Apr 8 4:34 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
9,836$25.03$246.2K2,780(I)

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Mar 26, 2026Mar 30 6:29 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
4,172$25.55$106.6K3,058(I)

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Mar 18, 2026Mar 19 4:21 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
650$25.39$16.5K21,479(D)

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Mar 17, 2026Mar 19 4:21 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
18,650$25.93$483.6K22,129(D)

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Mar 16, 2026Mar 17 4:36 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
17,575$25.97$456.4K40,779(D)

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Mar 13, 2026Mar 17 4:36 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
13,204$25.45$336.0K58,354(D)

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Mar 12, 2026Mar 16 4:07 PMTobin W JuvenalChief Commercial Officer
Sale
20,863$25.24$526.6K86,825(D)

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Mar 12, 2026Mar 13 4:10 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
23,179$25.28$585.9K71,558(D)

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Mar 11, 2026Mar 13 4:10 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Sale
20,946$26.11$546.9K3,336(I)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 1, 2026Jun 3 4:15 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
6,214$2.3992,431(D)

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May 28, 2026Jun 1 4:48 PMTiffany OlsonDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 4:48 PMEllen GoldbergDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 4:48 PMMiles HarrisonDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 4:47 PMRodney CottonDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 4:47 PMKim CapleDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 4:44 PMDaniel BradburyDirector
Grant/Award
11,76611,766(D)

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May 28, 2026Jun 1 4:43 PMBradley G ColeDirector
Grant/Award
11,76611,766(D)

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May 22, 2026May 27 4:20 PMBradley G ColeDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 4:18 PMDaniel BradburyDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 4:18 PMMiles HarrisonDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 4:17 PMTiffany OlsonDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 4:17 PMEllen GoldbergDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 4:16 PMKim CapleDirector
Option Exercise
13,6670(D)

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May 22, 2026May 27 4:16 PMRodney CottonDirector
Option Exercise
13,6670(D)

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May 21, 2026May 26 4:06 PMTobin W JuvenalChief Commercial Officer
Option Exercise
11,210$3.380(D)

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May 21, 2026May 22 4:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
420$2.39204(D)

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May 20, 2026May 22 4:12 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
130$2.39624(D)

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May 7, 2026May 11 4:06 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
6,214$2.39754(D)

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Apr 21, 2026Apr 23 4:16 PMDerek J MaetzoldDirector, Pres. & Chief Exec. Officer
Option Exercise
550$2.396,968(D)

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