Juvenal Tobin W bought CSTL

December 10, 2025 · Form 4 insider transaction

Juvenal Tobin W bought 6,170 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 1 day after the transaction.

Direction

Acquired (buy-side)

6,170

Price

N/A

Total value

N/A

InsiderJuvenal Tobin W

RoleOfficer

CompanyCastle Biosciences, Inc. (CSTL)

SecurityCommon Stock

Transaction codeM — Option exercise

Transaction dateDecember 10, 2025

Filing dateDecember 11, 2025

Shares owned after102,515

OwnershipDirect

10b5-1 planNo

AmendedNo

Footnotes

Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock.

View the original Form 4 on SEC EDGAR