Dudediligence.

Castle Biosciences, Inc

CSTLNASDAQ · Services-Medical Laboratories
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$13.0M

19 notices · 469,730 sh

Mar 3 to Oct 4

Reported ·

$10.1M

112 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

107 of 112 reported sales carry the 10b5-1 box. Together they are 1.11% of the shares on issue.

PLANNED · FORM 144Mar 3 to Oct 4REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-10-01: KRISTEN OELSCHLAGER, Form 1442026-09-14: Tobin Juvenal, Form 1442026-09-11: Derek Maetzold, Form 1442026-08-25: Tobin Juvenal, Form 1442026-08-24: Kristen M. Oelschlager, Form 1442026-08-14: Derek Maetzold, Form 1442026-08-14: FRANKLIN M. STOKES, Form 1442026-07-31: Tobin Juvenal, Form 1442026-07-31: Derek Maetzold, Form 1442026-07-01: Derek Maetzold, Form 1442026-06-16: KRISTEN OELSCHLAGER, Form 1442026-06-01: Derek Maetzold, Form 1442026-05-07: Derek Maetzold, Form 1442026-03-26: Derek Maetzold, Form 1442026-03-12: Tobin Juvenal, Form 1442026-03-11: Derek Maetzold, Form 1442026-03-05: FRANKLIN STOKES, Form 1442026-03-05: GORDON B. COLE, Form 1442026-03-03: FRANKLIN STOKES, Form 1442025-10-20: MAETZOLD DEREK J, sold2025-10-31: Oelschlager Kristen M, sold2025-11-04: MAETZOLD DEREK J, sold2025-11-11: Oelschlager Kristen M, sold2025-11-11: Juvenal Tobin W, sold2025-11-11: Stokes Frank, sold2025-11-18: MAETZOLD DEREK J, sold2025-11-20: Juvenal Tobin W, sold2025-11-25: MAETZOLD DEREK J, sold2025-11-26: MAETZOLD DEREK J, sold2025-12-02: MAETZOLD DEREK J, sold2025-12-04: MAETZOLD DEREK J, sold2025-12-11: Stokes Frank, sold2025-12-11: Juvenal Tobin W, sold2025-12-15: MAETZOLD DEREK J, sold2025-12-17: Oelschlager Kristen M, sold2025-12-17: MAETZOLD DEREK J, sold2025-12-22: MAETZOLD DEREK J, sold2026-01-05: MAETZOLD DEREK J, sold2026-01-20: MAETZOLD DEREK J, sold2026-02-03: MAETZOLD DEREK J, sold2026-03-03: Stokes Frank, sold2026-03-05: Cole G Bradley, sold2026-03-05: Stokes Frank, sold2026-03-11: MAETZOLD DEREK J, sold2026-03-12: Juvenal Tobin W, sold2026-03-13: MAETZOLD DEREK J, sold2026-03-17: MAETZOLD DEREK J, sold2026-03-26: MAETZOLD DEREK J, sold2026-04-06: MAETZOLD DEREK J, sold2026-04-21: MAETZOLD DEREK J, sold2026-05-07: MAETZOLD DEREK J, sold2026-05-20: MAETZOLD DEREK J, sold2026-06-01: MAETZOLD DEREK J, sold2026-06-15: MAETZOLD DEREK J, sold2026-06-16: Oelschlager Kristen M, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-10-01KRISTEN OELSCHLAGER, Chief Operating Officer$147,556
4,153 shplan 2026-03-17Form 4s on file end Jun 23144 ↗
2026-09-14Tobin Juvenal, Chief Commercial Officer$440,639
13,177 shplan 2026-05-28Form 4s on file end Jun 23144 ↗
2026-09-11Derek Maetzold, Pres. & Chief Exec. Officer$938,023
29,014 shplan 2026-06-02Form 4s on file end Jun 23144 ↗
2026-08-25Tobin Juvenal, Chief Commercial Officer$787,500
22,500 shplan 2025-12-10Form 4s on file end Jun 23144 ↗
2026-08-24Kristen M. Oelschlager, Chief Operating Officer$841,388
24,602 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-14Derek Maetzold, Pres. & Chief Exec. Officer$763,959
25,792 shplan 2025-12-03Form 4s on file end Jun 23144 ↗
2026-08-14FRANKLIN M. STOKES, Chief Financial Officer$741,494
24,908 shno plan dateForm 4s on file end Jun 23144 ↗
2026-07-31Tobin Juvenal, Chief Commercial Officer$630,000
22,500 shplan 2025-12-10Form 4s on file end Jun 23144 ↗
2026-07-31Derek Maetzold, Pres. & Chief Exec. Officer$1,894,536
67,662 shplan 2025-12-03Form 4s on file end Jun 23144 ↗
2026-07-01Derek Maetzold, Pres. & Chief Exec. Officer$589,185
23,844 shplan 2025-12-03Form 4s on file end Jun 23144 ↗
2026-06-16KRISTEN OELSCHLAGER, Chief Operating Officer$617,961
29,911 shplan 2026-03-17144 ↗
Form 4, 2026-06-18: sold 8,587 at $20.71 Form 4 ↗
2026-06-01Derek Maetzold, Pres. & Chief Exec. Officer$293,748
14,008 shplan 2025-12-03144 ↗
Form 4, 2026-06-03: sold 9,836 at $20.86 Form 4 ↗
2026-05-07Derek Maetzold, Pres. & Chief Exec. Officer$269,514
14,008 shplan 2025-12-03144 ↗
Form 4, 2026-05-11: sold 9,836 at $22.15 Form 4 ↗
2026-03-26Derek Maetzold, Pres. & Chief Exec. Officer$449,046
18,180 shplan 2025-12-03144 ↗
Form 4, 2026-03-30: sold 4,172 at $25.55 Form 4 ↗
2026-03-12Tobin Juvenal, Chief Commercial Officer$528,251
20,863 shplan 2025-12-10144 ↗
Form 4, 2026-03-16: sold 20,863 at $25.24 Form 4 ↗
2026-03-11Derek Maetzold, Pres. & Chief Exec. Officer$2,461,551
94,204 shplan 2025-12-03144 ↗
Form 4, 2026-03-13: sold 44,125 at $25.67 Form 4 ↗
2026-03-05FRANKLIN STOKES, Chief Financial Officer$169,048
6,001 shplan 2025-11-13144 ↗
Form 4, 2026-03-09: sold 6,001 at $27.98 Form 4 ↗
2026-03-05GORDON B. COLE, Director$210,743
7,403 shno plan date144 ↗
Form 4, 2026-03-09: sold 7,403 at $28.47 Form 4 ↗
2026-03-03FRANKLIN STOKES, Chief Financial Officer$195,930
7,000 shplan 2025-11-13144 ↗
Form 4, 2026-03-05: sold 7,000 at $27.44 Form 4 ↗