Company profile
CASTLE BIOSCIENCES INC insider acquisitions
Company CIK 0001447362 · Reported insider acquisitions and filing context.
These are company listings. A transaction is linked to a particular security only when the filing provides enough information.
Company activity summary
By transaction date, as of October 22, 2026.
| Type / code | Reported security | Transactions | Known purchase value | Missing amounts |
|---|---|---|---|---|
| Exercise / conversionCode M | Common StockNon-derivative · Currency not specified | 2 | Not applicable | 0 |
Known purchase value sums available amounts for non-derivative purchases only. Missing amounts are excluded. “Currency not specified” does not establish that the amounts share a currency. These summaries use all matching loaded records, while the timeline below covers only the current page.
Transaction timeline
Who reported an acquisition, and when the transaction occurred.
11 dated transactions · 4 of 4 reporting owners shown. Select one owner to focus the chart.
View timeline as a table
| Transaction date | Company / security | Reporting owners | Acquisition type |
|---|---|---|---|
| Oct 5, 2026 | CASTLE BIOSCIENCES INCCommon Stock | MAETZOLD DEREK J | Exercise / conversion |
| Oct 1, 2026 | CASTLE BIOSCIENCES INCCommon Stock | Oelschlager Kristen M | Exercise / conversion |
| Dec 10, 2025 | CASTLE BIOSCIENCES INCCommon Stock | MAETZOLD DEREK J | Exercise / conversion |
| Dec 9, 2025 | CASTLE BIOSCIENCES INCCommon Stock | MAETZOLD DEREK J | Exercise / conversion |
| Dec 10, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Oelschlager Kristen M | Exercise / conversion |
| Dec 9, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Oelschlager Kristen M | Exercise / conversion |
| Dec 10, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Stokes Frank | Exercise / conversion |
| Dec 9, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Stokes Frank | Exercise / conversion |
| Dec 10, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Juvenal Tobin W | Exercise / conversion |
| Dec 9, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Juvenal Tobin W | Exercise / conversion |
| Nov 20, 2025 | CASTLE BIOSCIENCES INCCommon Stock | Juvenal Tobin W | Exercise / conversion |
Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.
Share price & reported acquisitions
Daily closing prices from a separate source. The date window above also filters prices; reporting-owner and transaction-type selections filter the markers.
Price history is not available
Market-price history is not connected yet.
CSTL · Currency not specified. A marker uses that day's closing price, not the reported transaction price. No price is substituted for a missing trading day.
Reported acquisitions
Filing-date filters apply to the list and timeline. The summary above uses transaction dates.
| Filed / transacted | Reporting owners | Type / security | Quantity | Price / reference value | Details |
|---|---|---|---|---|---|
| Trade: | MAETZOLD DEREK JPres. & Chief Exec. Officer · Director | Exercise / conversionCommon StockNon-derivative security · Code M | 8,165 | 2.39Value: 19,514.35Currency not specified | View ↗ |
| Trade: | Oelschlager Kristen MChief Operating Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 4,153 | 3.38Value: 14,037.14Currency not specified | View ↗ |
| Trade: | MAETZOLD DEREK JPres. & Chief Exec. Officer · Director | Exercise / conversionCommon StockNon-derivative security · Code M | 15,424 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | MAETZOLD DEREK JPres. & Chief Exec. Officer · Director | Exercise / conversionCommon StockNon-derivative security · Code M | 33,495 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Oelschlager Kristen MChief Operating Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 6,170 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Oelschlager Kristen MChief Operating Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 15,961 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Stokes FrankChief Financial Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 6,170 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Stokes FrankChief Financial Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 14,616 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Juvenal Tobin WChief Commercial Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 6,170 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Juvenal Tobin WChief Commercial Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 15,961 | Not reported *Value: Not reportedCurrency not specified | View ↗ |
| Trade: | Juvenal Tobin WChief Commercial Officer | Exercise / conversionCommon StockNon-derivative security · Code M | 4,693 | 3.38Value: 15,862.34Currency not specified | View ↗ |
11 transactions on this page. Filing date, newest first.
Reporting owners are associated with a filing. Jointly reported amounts are not allocated to individual owners. Historical coverage is still being built. Read the methodology →