MAETZOLD DEREK J bought CSTL
December 9, 2025 · Form 4 insider transaction
MAETZOLD DEREK J bought 33,495 shares of Castle Biosciences, Inc., a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
33,495
Price
N/A
Total value
N/A
InsiderMAETZOLD DEREK J
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateDecember 9, 2025
Filing dateDecember 11, 2025
Shares owned after71,042
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock.