Oelschlager Kristen M bought CSTL
October 1, 2026 · Form 4 insider transaction
Oelschlager Kristen M bought 4,153 shares of Castle Biosciences, Inc. at $3.38 per share, a transaction worth $14.0K. 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
4,153
Price
$3.38
Total value
$14.0K
InsiderOelschlager Kristen M
RoleOfficer
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateOctober 1, 2026
Filing dateOctober 5, 2026
Shares owned after17,509
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person, on March 17, 2026.