Maetzold Derek J's Form 4 filing
Castle Biosciences Inc (CSTL) · filed May 22, 2026
- Accession no.
- 0001628280-26-037724
- Filed
- May 22, 2026
- Trade date
- May 20-21, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 16 non-derivative transactions and 2 derivative transactions. Open-market sales total $84.1K. 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 |
|---|---|---|---|---|---|---|---|---|
| May 20, 2026 | Common Stock | MOption exerciseAcquired | +130 | $2.39 | +$310.7 | 21,609 | Direct | |
| May 20, 2026 | Common Stock | SSaleDisposed | −130 | $20.00F2 | −$2,600 | 21,479 | Direct | |
| May 20, 2026 | Common Stock | SSaleDisposed | −322 | $20.00F2 | −$6,440 | 45,816 | Indirect | |
| May 20, 2026 | Common Stock | SSaleDisposed | −273 | $20.00F2 | −$5,460 | 38,941 | Indirect | |
| May 20, 2026 | Common Stock | SSaleDisposed | −66 | $20.00F2 | −$1,320 | 2,158 | Indirect | |
| May 20, 2026 | Common Stock | SSaleDisposed | −66 | $20.00F2 | −$1,320 | 2,158 | Indirect | |
| May 20, 2026 | Common Stock | SSaleDisposed | −66 | $20.00F2 | −$1,320 | 2,158 | Indirect | |
| May 20, 2026 | Common Stock | SSaleDisposed | −66 | $20.00F2 | −$1,320 | 2,158 | Indirect | |
| May 21, 2026 | Common Stock | MOption exerciseAcquired | +420 | $2.39 | +$1,003.8 | 21,899 | Direct | |
| May 21, 2026 | Common Stock | SSaleDisposed | −420 | $20.20F9 | −$8,484 | 21,479 | Direct | |
| May 21, 2026 | Common Stock | SSaleDisposed | −1,035 | $20.20F9 | −$20,907 | 44,781 | Indirect | |
| May 21, 2026 | Common Stock | SSaleDisposed | −880 | $20.20F9 | −$17,776 | 38,061 | Indirect | |
| May 21, 2026 | Common Stock | SSaleDisposed | −212 | $20.20F9 | −$4,282.4 | 1,946 | Indirect | |
| May 21, 2026 | Common Stock | SSaleDisposed | −212 | $20.20F9 | −$4,282.4 | 1,946 | Indirect | |
| May 21, 2026 | Common Stock | SSaleDisposed | −212 | $20.20F9 | −$4,282.4 | 1,946 | Indirect | |
| May 21, 2026 | Common Stock | SSaleDisposed | −212 | $20.20F9 | −$4,282.4 | 1,946 | 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 |
|---|---|---|---|---|---|---|---|---|
| May 20, 2026 | Common Stock | MOption exerciseDisposed | −130 | $0.00 | $0 | 624 | Direct | |
| May 21, 2026 | Common Stock | MOption exerciseDisposed | −420 | $0.00 | $0 | 204 | 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 $20.000 to $20.010, 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 $20.005 to $20.350, 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.