MAETZOLD DEREK J sold CSTL
September 11, 2026 · Form 4 insider transaction
MAETZOLD DEREK J sold 8,361 shares of Castle Biosciences, Inc. at $32.00 per share, a transaction worth $267.6K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.
Footnotes
These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.; This transaction was executed in multiple trades at prices ranging from $31.700 to $32.508, 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.