Castagna Michael bought MNKD
December 17, 2025 · Form 4 insider transaction
Castagna Michael bought 65,804 shares of MannKind Corporation at $4.55 per share, a transaction worth $299.4K. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
65,804
Price
$4.55
Total value
$299.4K
InsiderCastagna Michael
RoleOfficer, Director
CompanyMannKind Corporation (MNKD)
SecurityCommon Stock, $0.01 Par Value
Transaction codeM: Option exercise
Transaction dateDecember 17, 2025
Filing dateDecember 19, 2025
Shares owned after2,570,596
OwnershipDirect
10b5-1 planNo
AmendedNo