Castagna Michael bought MNKD
December 16, 2025 · Form 4 insider transaction
Castagna Michael bought 21,310 shares of MannKind Corporation at $4.55 per share, a transaction worth $97.0K. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 0 days after the transaction.
Direction
Acquired (buy-side)
Shares
21,310
Price
$4.55
Total value
$97.0K
InsiderCastagna Michael
RoleOfficer, Director
CompanyMannKind Corporation (MNKD)
SecurityCommon Stock, $0.01 Par Value
Transaction codeM: Option exercise
Transaction dateDecember 16, 2025
Filing dateDecember 16, 2025
Shares owned after2,526,102
OwnershipDirect
10b5-1 planNo
AmendedNo