MAETZOLD DEREK J sold CSTL
December 9, 2025 · Form 4 insider transaction
MAETZOLD DEREK J sold 13,181 shares of Castle Biosciences, Inc. at $38.25 per share, a transaction worth $504.2K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
13,181
Price
$38.25
Total value
$504.2K
InsiderMAETZOLD DEREK J
Role—
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateDecember 9, 2025
Filing dateDecember 11, 2025
Shares owned after57,861
OwnershipDirect
10b5-1 planNo
AmendedNo