Form 4/A for CSTL CASTLE BIOSCIENCES INC
Accepted 2025-11-14 00:00:00 ET · period of report 2025-11-11 · accession 0001628280-25-052350 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMA | 2025-11-14 | 2025-11-11+ | CSTL | Juvenal Tobin W | Chief Commercial Off | M - OptEx | $3.38 | +700 | 85.0K | +0.8% | +$2,366 |
| DMA | 2025-11-14 | 2025-11-11+ | CSTL | Juvenal Tobin W | Chief Commercial Off | S - Sale+OE | $35.39 | -700 | 84.5K | -0.8% | -$24.8K |
| DMA | 2025-11-14 | 2025-11-11+ | CSTL | Juvenal Tobin W | Chief Commercial Off | M - OptEx | $0.00 | -700 | 15.9K | -4% | $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 | 2025-11-12 | M | A | 200 | $3.38 | 84,727 | D | — | — | |
| 2 | Common | Common Stock | 2025-11-11 | S | D | 500 | $35.39 | 84,527 | D | — | — | (F2) This transaction was executed in multiple trades at prices ranging from $35.38 to $35.40, 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. |
| 3 | Common | Common Stock | 2025-11-11 | M | A | 500 | $3.38 | 85,027 | D | — | — | |
| 4 | Common | Common Stock | 2025-11-12 | S | D | 200 | $35.40 | 84,527 | D | — | — | (F3) This transaction was executed at a price of $35.40. 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. |
| 5 | Derivative | Stock option (right to buy) | 2025-11-11 | M | D | 500 | $0.00 | 16,103 | D | $3.38 · — to 2029-03-12 | 500 Common Stock | (F6) The shares subject to the option are fully vested. |
| 6 | Derivative | Stock option (right to buy) | 2025-11-12 | M | D | 200 | $0.00 | 15,903 | D | $3.38 · — to 2029-03-12 | 200 Common Stock | (F6) The shares subject to the option are fully vested. |