Maetzold Derek J's Form 4 filing
Castle Biosciences IncCSTL · filed Sep 1, 2026
- Accession no.
- 0001628280-26-059816
- Filed
- Sep 1, 2026, 4:12 PM ET
- Trade date
- Aug 28, 2026
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Checked
This filing lists 15 non-derivative transactions and 1 derivative transaction. Open-market sales total $616.1K. It was filed 4 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 |
|---|---|---|---|---|---|---|---|---|
| Aug 28, 2026 | Common Stock | MOption exerciseAcquired | +12,428 | $2.39 | +$29,702.92 | 33,907 | Direct | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −11,472 | $33.14F2 | −$380,182.08 | 22,435 | Direct | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −2,505 | $33.14F2 | −$83,015.7 | 17,850 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −2,129 | $33.14F2 | −$70,555.06 | 15,172 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −257 | $33.14F2 | −$8,516.98 | 11,277 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −257 | $33.14F2 | −$8,516.98 | 11,277 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −257 | $33.14F2 | −$8,516.98 | 11,277 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −257 | $33.14F2 | −$8,516.98 | 11,277 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −956 | $33.88F9 | −$32,389.28 | 21,479 | Direct | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −209 | $33.88F9 | −$7,080.92 | 17,641 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −177 | $33.88F9 | −$5,996.76 | 14,995 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −21 | $33.88F9 | −$711.48 | 11,256 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −21 | $33.88F9 | −$711.48 | 11,256 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −21 | $33.88F9 | −$711.48 | 11,256 | Indirect | |
| Aug 28, 2026 | Common Stock | SSaleDisposed | −21 | $33.88F9 | −$711.48 | 11,256 | 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 |
|---|---|---|---|---|---|---|---|---|
| Aug 28, 2026 | Common Stock | MOption exerciseDisposed | −12,428 | $0.00 | $0 | 25,329 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F2
This transaction was executed in multiple trades at prices ranging from $32.78 to $33.70, 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.
Referenced by the price of 7 transactions in Table I.
- F9
This transaction was executed in multiple trades at prices ranging from $33.78 to $33.97, 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.
Referenced by the price of 7 transactions in Table I.