Keohane Sean D bought CBT

August 28, 2026 · Form 4 insider transaction

Keohane Sean D bought 134,895 shares of Cabot Corporation at $50.00 per share, a transaction worth $6.74M. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 3 days after the transaction.

Direction
Acquired (buy-side)
Shares
134,895
Price
$50.00
Total value
$6.74M
RoleOfficer, Director
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateAugust 28, 2026
Filing dateAugust 31, 2026
Shares owned after539,029
OwnershipDirect
10b5-1 planNo
AmendedNo
View the original Form 4 on SEC EDGAR