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CSTL Exercise Disclosure
Maetzold Derek J · SEC Form 4 · Filed Aug 6, 2026
Exercise
Calculated transaction value
$48.65K
Maetzold Derek J Pres. & Chief Exec. Officer
CSTL
Castle Biosciences
CSTL
Transaction date
Aug 4, 2026
Public filing date
Aug 6, 2026
Filing lag
Filed 2 days later
CSTL daily price context
Close on/before transaction
$31.18
Aug 4, 2026
First close after public filing
$32.03
Aug 7, 2026
30-day return after filing
+2.28%
Through Sep 8, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Common Stock
- Quantity / price
- 20,356 shares @ $2.39
- SEC ownership
- Direct
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001628280-26-054334
Filing cohort
Transactions in this filing
Showing 13 of 13
Trades
13
Issuers
1
Estimated value
$1.27M
Buys / sales
0 / 9
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Castle Biosciences Inc CSTL | Exercise | Aug 5, 2026 | $6.08K |
| Castle Biosciences Inc CSTL | Sale | Aug 5, 2026 | $17.06K |
| Castle Biosciences Inc CSTL | Sale | Aug 5, 2026 | $14.51K |
| Castle Biosciences Inc CSTL | Sale | Aug 5, 2026 | $78.11K |
| Castle Biosciences Inc CSTL | Exercise | Aug 5, 2026 | $0 |
| Castle Biosciences Inc CSTL | Sale | Aug 4, 2026 | $149.85K |
| Castle Biosciences Inc CSTL | Sale | Aug 4, 2026 | $127.32K |
| Castle Biosciences Inc CSTL | Sale | Aug 4, 2026 | $374K |
| Castle Biosciences Inc CSTL | Exercise | Aug 4, 2026 | $0 |
| Castle Biosciences Inc CSTL Current | Exercise | Aug 4, 2026 | $48.65K |
| Castle Biosciences Inc CSTL | Sale | Aug 4, 2026 | $259.27K |
| Castle Biosciences Inc CSTL | Sale | Aug 4, 2026 | $103.88K |
| Castle Biosciences Inc CSTL | Sale | Aug 4, 2026 | $88.24K |