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CSTL

UNKNOWN

CASTLE BIOSCIENCES INC

CIK: 0001447362

Strong Sell (90% confidence)

Last activity: 5 days ago

Financial Metrics

As of Dec 31, 2024 (10-K)

Revenue $332.07M
Total Debt $24.50M

Insider Roster (5 total, 5 active)

Insider Buys Sells Net Value Holdings
MAETZOLD DEREK J
Pres. & Chief Exec. Officer
 		0 33 -$4.47M
50,209 shares
$1.28M
Juvenal Tobin W
Chief Commercial Officer
 		0 2 -$1.02M
86,825 shares
$2.19M
Oelschlager Kristen M
Chief Operating Officer
 		0 1 -$585K
12,323 shares
$484K
Stokes Frank
Chief Financial Officer
 		0 4 -$528K
60,085 shares
$1.68M
Cole G Bradley
DIRECTOR
 		0 2 -$211K
21,964 shares
$625K

Recent Transactions

SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,357 shares @ $25.55

$35K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,153 shares @ $25.55

$29K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

550 shares @ $25.55

$14K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

278 shares @ $25.55

$7K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

278 shares @ $25.55

$7K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

278 shares @ $25.55

$7K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

278 shares @ $25.55

$7K

Mar 26, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

650 shares @ $25.39

$17K

Mar 18, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

18,650 shares @ $25.93

$484K

Mar 17, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

17,449 shares @ $25.96

$453K

Mar 16, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

126 shares @ $26.68

$3K

Mar 16, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

13,204 shares @ $25.45

$336K

Mar 13, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

23,179 shares @ $25.28

$586K

Mar 12, 2026

Conviction: | View SEC Filing →
SELL Juvenal Tobin W (Chief Commercial Officer)

20,863 shares @ $25.24

$527K

Mar 12, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

17,310 shares @ $26.11

$452K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,357 shares @ $26.11

$35K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,160 shares @ $26.11

$30K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

282 shares @ $26.11

$7K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

279 shares @ $26.11

$7K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

279 shares @ $26.11

$7K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

279 shares @ $26.11

$7K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL Stokes Frank (Chief Financial Officer)

6,001 shares @ $27.98

$168K

Mar 5, 2026

Conviction: | View SEC Filing →
SELL Cole G Bradley (DIRECTOR)

4,748 shares @ $28.44

$135K

Mar 5, 2026

Conviction: | View SEC Filing →
SELL Cole G Bradley (DIRECTOR)

2,655 shares @ $28.51

$76K

Mar 5, 2026

Conviction: | View SEC Filing →
SELL Stokes Frank (Chief Financial Officer)

5,300 shares @ $27.32

$145K

Mar 3, 2026

Conviction: | View SEC Filing →
SELL Stokes Frank (Chief Financial Officer)

1,700 shares @ $27.81

$47K

Mar 3, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

646 shares @ $37.82

$24K

Feb 4, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

171 shares @ $38.61

$7K

Feb 4, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

3,200 shares @ $39.91

$128K

Feb 3, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

4,017 shares @ $40.01

$161K

Jan 20, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,339 shares @ $40.10

$54K

Jan 6, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

2,678 shares @ $38.09

$102K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

830 shares @ $40.35

$33K

Dec 22, 2025

Conviction: | View SEC Filing →
SELL Oelschlager Kristen M (Chief Operating Officer)

14,888 shares @ $39.31

$585K

Dec 17, 2025

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

509 shares @ $40.04

$20K

Dec 17, 2025

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

12,821 shares @ $38.55

$494K

Dec 16, 2025

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

18,513 shares @ $38.75

$717K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,012 shares @ $39.30

$40K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Juvenal Tobin W (Chief Commercial Officer)

13,200 shares @ $37.48

$495K

Dec 11, 2025

Conviction: | View SEC Filing →
SELL Stokes Frank (Chief Financial Officer)

4,496 shares @ $37.45

$168K

Dec 11, 2025

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

1,339 shares @ $40.03

$54K

Dec 4, 2025

Conviction: | View SEC Filing →
SELL MAETZOLD DEREK J (Pres. & Chief Exec. Officer)

2,678 shares @ $39.23

$105K

Dec 2, 2025

Conviction: | View SEC Filing →

⚠️ Important Disclaimer

• This is AI-generated analysis for educational purposes only, not financial advice.

• Insider trading data is derived from SEC Form 4 filings and may contain errors.

• Always conduct your own research and consult qualified financial advisors before making investment decisions.