Mosbrooker Eric bought RNA
August 6, 2025 · Form 4 insider transaction
Mosbrooker Eric bought 124,687 shares of Atrium Therapeutics, Inc. at $9.05 per share, a transaction worth $1.13M. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
124,687
Price
$9.05
Total value
$1.13M
InsiderMosbrooker Eric
RoleOfficer
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateAugust 6, 2025
Filing dateAugust 8, 2025
Shares owned after185,807
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on September 11, 2024.