Maetzold Derek J's Form 4 filing
Castle Biosciences Inc (CSTL) · filed Jul 29, 2026
- Accession no.
- 0001628280-26-050616
- Filed
- Jul 29, 2026, 4:09 PM ET
- Trade date
- Jul 27, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 15 non-derivative transactions and 1 derivative transaction. Open-market sales total $237.7K. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Maetzold Derek JCIK 0001239501 | Director, Officer (Pres. & Chief Exec. Officer) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 27, 2026 | Common Stock | MOption exerciseAcquired | +6,214 | $2.39 | +$14,851.46 | 27,693 | Direct | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −5,982 | $24.13 | −$144,345.66 | 21,711 | Direct | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −1,307 | $24.13 | −$31,537.91 | 38,046 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −1,110 | $24.13 | −$26,784.3 | 32,339 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −268 | $24.13 | −$6,466.84 | 11,822 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −268 | $24.13 | −$6,466.84 | 11,822 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −268 | $24.13 | −$6,466.84 | 11,822 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −268 | $24.13 | −$6,466.84 | 11,822 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −232 | $25.06 | −$5,813.92 | 21,479 | Direct | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −50 | $25.06 | −$1,253 | 37,996 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −43 | $25.06 | −$1,077.58 | 32,296 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −10 | $25.06 | −$250.6 | 11,812 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −10 | $25.06 | −$250.6 | 11,812 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −10 | $25.06 | −$250.6 | 11,812 | Indirect | |
| Jul 27, 2026 | Common Stock | SSaleDisposed | −10 | $25.06 | −$250.6 | 11,812 | Indirect |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 27, 2026 | Common Stock | MOption exerciseDisposed | −6,214 | $0.00 | $0 | 78,903 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.