CIK 0001447362 · Accelerated filer
CASTLE BIOSCIENCES INC
Sign in to watch- Ticker
- 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 |
|---|---|---|---|---|---|---|
| 2025-12-09 | Stokes Frank Chief Financial Officer | Shares withheld for taxes | −6,534 | $38.25 | $250K | 51,410 |
| 2025-12-09 | Stokes Frank Chief Financial Officer | Option exercise · Restricted Stock Units | −14,616 | 14,617 | ||
| 2025-12-09 | Juvenal Tobin W Chief Commercial Officer | Option exercise | +15,961 | 102,786 | ||
| 2025-12-09 | Juvenal Tobin W Chief Commercial Officer | Shares withheld for taxes | −6,441 | $38.25 | $246K | 96,345 |
| 2025-12-09 | Juvenal Tobin W Chief Commercial Officer | Option exercise · Restricted Stock Units | −15,961 | 15,961 | ||
| 2025-12-04 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,339 | $40.03 | $54K | 37,547 |
| 2025-12-02 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −2,678 | $39.23 | $105K | 38,886 |
| 2025-11-26 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −4,258 | $40.09 | $171K | 41,564 |
| 2025-11-25 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −5,115 | $40.05 | $205K | 45,822 |
| 2025-11-24 | Juvenal Tobin W Chief Commercial Officer | Sale 10b5-1 | −1,301 | $38.39 | $50K | 77,694 |
| 2025-11-20 | Juvenal Tobin W Chief Commercial Officer | Option exercise 10b5-1 | +4,693 | $3.38 | $16K | 89,288 |
| 2025-11-20 | Juvenal Tobin W Chief Commercial Officer | Sale 10b5-1 | −4,693 | $35.58 | $167K | 84,595 |
| 2025-11-20 | Juvenal Tobin W Chief Commercial Officer | Option exercise · Stock option (right to buy) 10b5-1 | −4,693 | 11,210 | ||
| 2025-11-18 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −2,678 | $34.02 | $91K | 50,937 |
| 2025-11-12 | Juvenal Tobin W Chief Commercial Officer | Option exercise 10b5-1 | +200 | $3.38 | $676 | 84,727 |
| 2025-11-12 | Juvenal Tobin W Chief Commercial Officer | Sale 10b5-1 | −200 | $35.40 | $7K | 84,527 |
| 2025-11-12 | Juvenal Tobin W Chief Commercial Officer | Option exercise · Stock option (right to buy) 10b5-1 | −200 | 15,903 | ||
| 2025-11-12 | Juvenal Tobin W Chief Commercial Officer | Sale 10b5-1 | −200 | $35.40 | $7K | 83,827 |
| 2025-11-11 | Juvenal Tobin W Chief Commercial Officer | Option exercise 10b5-1 | +500 | $3.38 | $2K | 85,027 |
| 2025-11-11 | Juvenal Tobin W Chief Commercial Officer | Sale 10b5-1 | −500 | $35.39 | $18K | 84,527 |
Page 18 of 45 · 897 trades