Cloonan Michael bought SION
September 29, 2025 · Form 4 insider transaction
Cloonan Michael bought 7,793 shares of Sionna Therapeutics, Inc. at $6.11 per share, a transaction worth $47.6K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
7,793
Price
$6.11
Total value
$47.6K
InsiderCloonan Michael
RoleOfficer, Director
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateSeptember 29, 2025
Filing dateSeptember 30, 2025
Shares owned after555,136
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
This transaction was automatically executed pursuant to a Rule 10b5-1 trading plan adopted on May 21, 2025.