Juvenal Tobin W bought CSTL
November 20, 2025 · Form 4 insider transaction
Juvenal Tobin W bought 4,693 shares of Castle Biosciences, Inc. at $3.38 per share, a transaction worth $15.9K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Acquired (buy-side)
Shares
4,693
Price
$3.38
Total value
$15.9K
InsiderJuvenal Tobin W
RoleOfficer
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateNovember 20, 2025
Filing dateNovember 24, 2025
Shares owned after89,288
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
This transaction was made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on September 11, 2024.; Reflects an adjustment of 68 shares to the number of shares beneficially owned following a reconciliation of the Reporting Person's records.