Maetzold Derek J's Form 4 filing
Castle Biosciences IncCSTL · filed Aug 4, 2026
- Accession no.
- 0001628280-26-052647
- Filed
- Aug 4, 2026, 4:35 PM ET
- Trade date
- Jul 31-Aug 3, 2026
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Checked
This filing lists 8 non-derivative transactions and 2 derivative transactions. Open-market sales total $867.5K. 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 |
|---|---|---|---|---|---|---|---|---|
| Jul 31, 2026 | Common Stock | MOption exerciseAcquired | +6,480 | $2.39 | +$15,487.2 | 27,959 | Direct | |
| Jul 31, 2026 | Common Stock | SSaleDisposed | −6,480 | $30.15F3 | −$195,384.96 | 21,479 | Direct | |
| Jul 31, 2026 | Common Stock | SSaleDisposed | −1,983 | $30.15F3 | −$59,791.42 | 36,013 | Indirect | |
| Jul 31, 2026 | Common Stock | SSaleDisposed | −1,690 | $30.15F3 | −$50,956.88 | 30,606 | Indirect | |
| Aug 3, 2026 | Common Stock | MOption exerciseAcquired | +10,664 | $2.39 | +$25,486.96 | 32,143 | Direct | |
| Aug 3, 2026 | Common Stock | SSaleDisposed | −10,664 | $30.35F6 | −$323,684.39 | 21,479 | Direct | |
| Aug 3, 2026 | Common Stock | SSaleDisposed | −4,232 | $30.35F6 | −$128,453.9 | 31,781 | Indirect | |
| Aug 3, 2026 | Common Stock | SSaleDisposed | −3,597 | $30.35F6 | −$109,179.74 | 27,009 | 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 31, 2026 | Common Stock | MOption exerciseDisposed | −6,480 | $0.00 | $0 | 72,423 | Direct | |
| Aug 3, 2026 | Common Stock | MOption exerciseDisposed | −10,664 | $0.00 | $0 | 61,759 | 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.
- F3
This transaction was executed in multiple trades at prices ranging from $30.000 to $30.473, 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 3 transactions in Table I.
- F6
This transaction was executed in multiple trades at prices ranging from $30.000 to $30.725, 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 3 transactions in Table I.