Flanagan W. Michael sold RNA

September 11, 2025 · Form 4 insider transaction

Flanagan W. Michael sold 20,000 shares of Atrium Therapeutics, Inc. at $38.94 per share, a transaction worth $778.7K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Disposed (sell-side)
Shares
20,000
Price
$38.94
Total value
$778.7K
Role
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateSeptember 11, 2025
Filing dateSeptember 12, 2025
Shares owned after80,195
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

The exercise and sales reported in this report were effected pursuant to a Rule 10b5-1 trading plan previously adopted on June 12, 2024 by the Reporting Person.; This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $35.85 to $41.52. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

View the original Form 4 on SEC EDGAR