Form 4 for CSTL CASTLE BIOSCIENCES INC
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0001628280-26-016019 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-09 | 2026-03-05 | CSTL | Stokes Frank | CFO | S - Sale | $27.98 | -6,001 | 60.1K | -9% | -$167.9K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-05 | S | D | 6,001 | $27.98 | 60,085 | D | — | — | (F2) This transaction was executed in multiple trades at prices ranging from $27.51 to $28.41, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |