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Maetzold Derek J's Form 4 filing

Castle Biosciences Inc (CSTL) · filed May 11, 2026

Accession no.
0001628280-26-033446
Filed
May 11, 2026
Trade date
May 7, 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 $217.9K. 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.

Reporting owners on this filing
OwnerRelationship to the company
Maetzold Derek JCIK 0001239501Director, 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.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
May 7, 2026Common StockMOption exerciseAcquired+6,214$2.39+$14,851.4627,693Direct
May 7, 2026Common StockSSaleDisposed−5,308$22.08F2−$117,200.6422,385Direct
May 7, 2026Common StockSSaleDisposed−1,159$22.08F2−$25,590.7246,336Indirect
May 7, 2026Common StockSSaleDisposed−985$22.08F2−$21,748.839,382Indirect
May 7, 2026Common StockSSaleDisposed−237$22.08F2−$5,232.962,265Indirect
May 7, 2026Common StockSSaleDisposed−237$22.08F2−$5,232.962,265Indirect
May 7, 2026Common StockSSaleDisposed−237$22.08F2−$5,232.962,265Indirect
May 7, 2026Common StockSSaleDisposed−237$22.08F2−$5,232.962,265Indirect
May 7, 2026Common StockSSaleDisposed−906$22.59F9−$20,466.5421,479Direct
May 7, 2026Common StockSSaleDisposed−198$22.59F9−$4,472.8246,138Indirect
May 7, 2026Common StockSSaleDisposed−168$22.59F9−$3,795.1239,214Indirect
May 7, 2026Common StockSSaleDisposed−41$22.59F9−$926.192,224Indirect
May 7, 2026Common StockSSaleDisposed−41$22.59F9−$926.192,224Indirect
May 7, 2026Common StockSSaleDisposed−41$22.59F9−$926.192,224Indirect
May 7, 2026Common StockSSaleDisposed−41$22.59F9−$926.192,224Indirect

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.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
May 7, 2026Common StockMOption exerciseDisposed−6,214$0.00$0754Direct

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 $21.520 to $22.515, 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 $22.520 to $22.680, 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.

Read the full filing on SEC EDGAR (opens in a new tab)