Oelschlager Kristen M bought CSTL
September 1, 2026 · Form 4 insider transaction
Oelschlager Kristen M bought 4,152 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 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
4,152
Price
$3.38
Total value
$14.0K
InsiderOelschlager Kristen M
RoleOfficer
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateSeptember 1, 2026
Filing dateSeptember 3, 2026
Shares owned after17,508
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.; Includes 68 shares acquired on August 31, 2026, under the Issuer's employee stock purchase plan.