CIK 0001447362 · Accelerated filer
CASTLE BIOSCIENCES INC
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- CSTL
- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 770701774
- Phone
- 866-788-9007
- Business address
- 1500 W. PARKWOOD AVE., SUITE 400, FRIENDSWOOD, TX, 77546
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $5,765,795
- in 18 filings, $4.9M under 10b5-1 plans
Net −$5,765,795. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2025-04-21 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −2,017 | $21.52 | $43K | 60,991 |
| 2025-04-21 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,731 | $21.52 | $37K | 51,910 |
| 2025-04-21 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −165 | $21.52 | $4K | 4,278 |
| 2025-04-21 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −165 | $21.52 | $4K | 4,275 |
| 2025-04-21 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −165 | $21.52 | $4K | 4,275 |
| 2025-04-21 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −165 | $21.52 | $4K | 4,275 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,023 | $20.22 | $21K | 75,863 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,669 | $20.22 | $34K | 63,008 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,432 | $20.22 | $29K | 53,641 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −135 | $20.22 | $3K | 4,443 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −137 | $20.22 | $3K | 4,440 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −137 | $20.22 | $3K | 4,440 |
| 2025-04-09 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −137 | $20.22 | $3K | 4,440 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −213 | $20.03 | $4K | 76,886 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −348 | $20.03 | $7K | 64,677 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −299 | $20.03 | $6K | 55,073 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −30 | $20.03 | $601 | 4,578 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −28 | $20.03 | $561 | 4,577 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −28 | $20.03 | $561 | 4,577 |
| 2025-04-08 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −28 | $20.03 | $561 | 4,577 |
Page 22 of 45 · 897 trades