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CSTL Sale Disclosure
Maetzold Derek J · SEC Form 4 · Filed Sep 1, 2026
Sale
Calculated transaction value
$380.18K
Maetzold Derek J Pres. & Chief Exec. Officer
CSTL
Castle Biosciences
CSTL
Transaction date
Aug 28, 2026
Public filing date
Sep 1, 2026
Filing lag
Filed 4 days later
CSTL daily price context
Close on/before transaction
$33.5
Aug 28, 2026
First close after public filing
$33.42
Sep 2, 2026
30-day return after filing
+5.49%
Through Oct 1, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Common Stock
- Quantity / price
- 11,472 shares @ $33.14
- SEC ownership
- Direct
- Transaction code
- S
- Form
- 4
- Filing identifier
- 0001628280-26-059816
Filing cohort
Transactions in this filing
Showing 15 of 16
Trades
16
Issuers
1
Estimated value
$645.84K
Buys / sales
0 / 14
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $711.48 |
| Castle Biosciences Inc CSTL | Exercise | Aug 28, 2026 | $29.7K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $70.56K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $8.52K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $8.52K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $8.52K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $32.39K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $6K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $711.48 |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $711.48 |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $711.48 |
| Castle Biosciences Inc CSTL | Exercise | Aug 28, 2026 | $0 |
| Castle Biosciences Inc CSTL Current | Sale | Aug 28, 2026 | $380.18K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $83.02K |
| Castle Biosciences Inc CSTL | Sale | Aug 28, 2026 | $8.52K |