On January 8, 2021, Affinivax, Inc. closed the transaction. The company received $226,000,000 in the transaction co-led by new investors Rock Springs Capital and Foresite Capital Management, LLC. The transaction also included participation from new investors T. Rowe Price Group, Inc. (NasdaqGS:TROW), Wellington Management Group LLP, funds and accounts managed by BlackRock, Inc. (NYSE:BLK), Cormorant Asset Management, LLC, Perceptive Advisors LLC, EcoR1 Capital, LLC, Citadel Multi-Strategy Equities Master Fund Ltd., a fund managed by Citadel Advisors LLC and Logos Global Management, L.P. and existing investors Viking Global Investors LP, Bain Capital Life Sciences Investors, LLC and Ziff Capital Partners, LLC.

As part of the transaction Kris Jenner, Partner at Rock Springs Capital joined company's board of directors. In total, 27 investors participated in the transaction.