Castagna Michael bought MNKD
December 12, 2025 · Form 4 insider transaction
Castagna Michael bought 20,806 shares of MannKind Corporation at $4.55 per share, a transaction worth $94.7K. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Acquired (buy-side)
Shares
20,806
Price
$4.55
Total value
$94.7K
InsiderCastagna Michael
RoleOfficer, Director
CompanyMannKind Corporation (MNKD)
SecurityCommon Stock, $0.01 Par Value
Transaction codeM: Option exercise
Transaction dateDecember 12, 2025
Filing dateDecember 16, 2025
Shares owned after2,525,598
OwnershipDirect
10b5-1 planNo
AmendedNo