Juvenal Tobin W sold CSTL

September 15, 2026 · Form 4 insider transaction

Juvenal Tobin W sold 3,294 shares of Castle Biosciences, Inc. at $35.14 per share, a transaction worth $115.8K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Disposed (sell-side)
Shares
3,294
Price
$35.14
Total value
$115.8K
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateSeptember 15, 2026
Filing dateSeptember 16, 2026
Shares owned after58,584
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

This transaction was made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on May 28, 2026.; This transaction was executed in multiple trades at prices ranging from $35.000 to $35.380, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

View the original Form 4 on SEC EDGAR
Juvenal Tobin W sold CSTL: September 15, 2026 | Insider Trading Screener