MAETZOLD DEREK J sold CSTL
March 3, 2026 · Form 4 insider transaction
MAETZOLD DEREK J sold 19,043 shares of Castle Biosciences, Inc. at $27.57 per share, a transaction worth $525.0K. 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
19,043
Price
$27.57
Total value
$525.0K
InsiderMAETZOLD DEREK J
Role—
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateMarch 3, 2026
Filing dateMarch 5, 2026
Shares owned after64,655
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Reflects the withholding of shares of the Issuer's common stock to satisfy tax withholding obligations in connection with the delivery of vested performance stock units reported on January 12, 2026.