Form 4 for CSTL CASTLE BIOSCIENCES INC
Accepted 2025-08-12 00:00:00 ET · period of report 2025-08-08 · accession 0001856542-25-000003 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-08-12 | 2025-08-08 | CSTL | Juvenal Tobin W | Chief Commercial Off | F - Tax | $19.36 | -4,294 | 84.5K | -5% | -$83.1K |
| D | 2025-08-12 | 2025-08-08 | CSTL | Juvenal Tobin W | Chief Commercial Off | M - OptEx | $0.00 | +10.6K | 88.8K | +14% | $0 |
| D | 2025-08-12 | 2025-08-08 | CSTL | Juvenal Tobin W | Chief Commercial Off | M - OptEx | $0.00 | -10.6K | 0 | -100% | $0 |
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 | 2025-08-08 | F | D | 4,294 | $19.36 | 84,527 | D | — | — | |
| 2 | Common | Common Stock | 2025-08-08 | M | A | 10,640 | $0.00 | 88,821 | D | — | — | |
| 3 | Derivative | Performance-Based Stock Unit | 2025-08-08 | M | D | 10,640 | $0.00 | 0 | D | — · — to — | 10,640 Common Stock | (F2) Each Performance-Based Stock Unit ("PSU") represents the right to receive one share of the Issuer's Common Stock. These PSUs represent the remaining 50% of the PSUs granted on December 23, 2022, which were all subject to time-based vesting and vested in full on the one-year anniversary of August 9, 2024. |