Maetzold Derek J's Form 4 filing
Castle Biosciences IncCSTL · filed Aug 6, 2026
- Accession no.
- 0001628280-26-054334
- Filed
- Aug 6, 2026, 4:14 PM ET
- Trade date
- Aug 4-5, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 11 non-derivative transactions and 2 derivative transactions. Open-market sales total $1.21M. 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 |
|---|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | Common Stock | MOption exerciseAcquired | +20,356 | $2.39 | +$48,650.84 | 41,835 | Direct | |
| Aug 4, 2026 | Common Stock | SSaleDisposed | −8,421 | $30.79F2 | −$259,265.75 | 33,414 | Direct | |
| Aug 4, 2026 | Common Stock | SSaleDisposed | −3,374 | $30.79F2 | −$103,878.71 | 28,407 | Indirect | |
| Aug 4, 2026 | Common Stock | SSaleDisposed | −2,866 | $30.79F2 | −$88,238.41 | 24,143 | Indirect | |
| Aug 4, 2026 | Common Stock | SSaleDisposed | −11,935 | $31.34F5 | −$373,995.16 | 21,479 | Direct | |
| Aug 4, 2026 | Common Stock | SSaleDisposed | −4,782 | $31.34F5 | −$149,848.75 | 23,625 | Indirect | |
| Aug 4, 2026 | Common Stock | SSaleDisposed | −4,063 | $31.34F5 | −$127,318.17 | 20,080 | Indirect | |
| Aug 5, 2026 | Common Stock | MOption exerciseAcquired | +2,546 | $2.39 | +$6,084.94 | 24,025 | Direct | |
| Aug 5, 2026 | Common Stock | SSaleDisposed | −2,546 | $30.68F6 | −$78,113.83 | 21,479 | Direct | |
| Aug 5, 2026 | Common Stock | SSaleDisposed | −556 | $30.68F6 | −$17,058.64 | 23,069 | Indirect | |
| Aug 5, 2026 | Common Stock | SSaleDisposed | −473 | $30.68F6 | −$14,512.11 | 19,607 | 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 4, 2026 | Common Stock | MOption exerciseDisposed | −20,356 | $0.00 | $0 | 41,403 | Direct | |
| Aug 5, 2026 | Common Stock | MOption exerciseDisposed | −2,546 | $0.00 | $0 | 38,857 | 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 $30.000 to $30.995, 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.
- F5
This transaction was executed in multiple trades at prices ranging from $31.010 to $31.650, 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 $30.400 to $31.175, 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.