Insider buys and sells (Form 4)
CASTLE BIOSCIENCES INC insiders: buys and sells · CSTL
Directors, officers and 10%+ shareholders must report every purchase and sale of their company's stock to the SEC within two business days. Transactions filed between 2026-09-29 and 2026-10-28. All filings on SEC EDGAR →
- Bought
- $0
- Sold
- $1,818,544
- Buys
- 0
- Sells
- 14
The 14 transactions
| Date | Who | Role | Transaction | Shares | Price | Amount |
|---|---|---|---|---|---|---|
| 2026-10-28 | Juvenal Tobin W | Chief Commercial Officer | sell | 5.341 | 36,619 | $195,582 |
| 2026-10-28 | Juvenal Tobin W | Chief Commercial Officer | sell | 1.237 | 35,577 | $44,009 |
| 2026-10-26 | Juvenal Tobin W | Chief Commercial Officer | sell | 3.288 | 33,08 | $108,767 |
| 2026-10-19 | Maetzold Derek J | Pres. & Chief Exec. Officer | sell | 8.580 | 31,91 | $273,788 |
| 2026-10-19 | Maetzold Derek J | Pres. & Chief Exec. Officer | sell | 3.198 | 31,91 | $102,048 |
| 2026-10-19 | Maetzold Derek J | Pres. & Chief Exec. Officer | sell | 2.718 | 31,91 | $86,731 |
| 2026-10-12 | Juvenal Tobin W | Chief Commercial Officer | sell | 3.288 | 33,64 | $110,608 |
| 2026-10-05 | Maetzold Derek J | Pres. & Chief Exec. Officer | sell | 8.580 | 35,566 | $305,156 |
| 2026-10-05 | Maetzold Derek J | Pres. & Chief Exec. Officer | sell | 3.198 | 35,566 | $113,740 |
| 2026-10-05 | Maetzold Derek J | Pres. & Chief Exec. Officer | sell | 2.718 | 35,566 | $96,668 |
| 2026-10-01 | Oelschlager Kristen M | Chief Operating Officer | sell | 2.807 | 35,75 | $100,350 |
| 2026-10-01 | Oelschlager Kristen M | Chief Operating Officer | sell | 1.346 | 36,38 | $48,967 |
| 2026-09-30 | Juvenal Tobin W | Chief Commercial Officer | sell | 1.034 | 34,20 | $35,363 |
| 2026-09-29 | Juvenal Tobin W | Chief Commercial Officer | sell | 5.543 | 35,498 | $196,765 |
How to read these transactions
There are 14 filed transactions for CASTLE BIOSCIENCES INC (CSTL) between 2026-09-29 and 2026-10-28. They were made by 3 different people. Open-market buys: 0, for $0. Sells: 14, for $1,818,544.
Each transaction comes from a Form 4, the filing the person submits to the SEC. In the table, each row is one transaction: the date, who made it and their role, whether it is a buy or a sell, the number of shares, the declared price per share and the total amount.
Open-market buys are the ones people watch most, because whoever makes them puts in their own money. Sells say less: they often respond to taxes, diversification or sale plans scheduled in advance. A single transaction does not say much either; what people look at is whether they repeat, from how many people and for what amount.
Other companies with insider trades
CSW INDUSTRIALS, INC. (CSW) · CAPITAL SOUTHWEST CORP (CSWC) · CSX CORP (CSX) · Claritev Corp (CTEV) · Castellum, Inc. (CTM) · Contineum Therapeutics, Inc. (CTNM) · CHEETAH NET SUPPLY CHAIN SERVICE INC. (CTNT) · Citi Trends Inc (CTRN)
Public SEC data (EDGAR), Form 4. Open-market buys and sells only: option exercises and stock received as pay are left out. This is not investment advice.
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