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 |
|---|---|---|---|---|---|---|
| 2025-11-11 | Juvenal Tobin W Chief Commercial Officer | Option exercise · Stock option (right to buy) 10b5-1 | −500 | 16,103 | ||
| 2025-11-11 | Stokes Frank Chief Financial Officer | Sale 10b5-1 | −5,388 | $35.08 | $189K | 43,328 |
| 2025-11-11 | Juvenal Tobin W Chief Commercial Officer | Sale 10b5-1 | −500 | $35.39 | $18K | 84,027 |
| 2025-11-11 | Oelschlager Kristen M Chief Operating Officer | Sale 10b5-1 | −18,932 | $35.10 | $665K | 12,323 |
| 2025-11-05 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −2,678 | $31.85 | $85K | 53,615 |
| 2025-11-04 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −6,458 | $30.41 | $196K | 56,530 |
| 2025-11-04 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −237 | $31.12 | $7K | 56,293 |
| 2025-10-31 | Oelschlager Kristen M Chief Operating Officer | Sale 10b5-1 | −12,678 | $25.04 | $317K | 27,569 |
| 2025-10-20 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,339 | $22.44 | $30K | 62,988 |
| 2025-10-02 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,339 | $22.58 | $30K | 64,327 |
| 2025-09-17 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,339 | $21.97 | $29K | 65,666 |
| 2025-09-02 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,339 | $23.93 | $32K | 67,005 |
| 2025-08-27 | Oelschlager Kristen M Chief Operating Officer | Sale | −18,007 | $21.69 | $391K | 100,937 |
| 2025-08-27 | Oelschlager Kristen M Chief Operating Officer | Sale 10b5-1 | −12,677 | $22.02 | $279K | 141,116 |
| 2025-08-27 | Oelschlager Kristen M Chief Operating Officer | Sale | −18,007 | $21.69 | $391K | 153,793 |
| 2025-08-15 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −1,339 | $20.04 | $27K | 68,344 |
| 2025-08-13 | MAETZOLD DEREK J Pres. & Chief Exec. Officer | Sale 10b5-1 | −43,019 | $19.50 | $839K | 69,683 |
| 2025-08-08 | Oelschlager Kristen M Chief Operating Officer | Option exercise | +10,640 | 174,604 | ||
| 2025-08-08 | Oelschlager Kristen M Chief Operating Officer | Shares withheld for taxes | −2,804 | $19.36 | $54K | 171,800 |
| 2025-08-08 | Oelschlager Kristen M Chief Operating Officer | Option exercise · Performance-Based Stock Unit | −10,640 | 0 |
Page 19 of 45 · 897 trades