On September 8, 2021, Attralus, Inc. closed the transaction. The company received funding led by Logos Global Management, L.P. The transaction also included participation from Janus Henderson Group plc, Redmile Group, LLC, Samsara BioCapital LLC, Sarissa Capital Management LP, Citadel Multi-Strategy Equities Master Fund Ltd., a fund managed by Citadel Advisors LLC, Vivo Capital, LLC, returning investor venBio LLC. As part of the transaction, Alexander Denner of Sarissa Capital Management LP will join the board of directors of the company.

The transaction included participation from 22 investors pursuant to exemption provided under regulation D.