ACELYRIN Determines Unsolicited Indication of Interest From Concentra Biosciences Not Reasonably Expected to Result in a Superior Proposal to Planned Alumis Merger

All-Stock Transaction with Alumis Maximizes Long-Term Value for ACELYRIN Stockholders

LOS ANGELES, March 04, 2025 (GLOBE NEWSWIRE) -- ACELYRIN, INC. (Nasdaq: SLRN), a late-stage clinical biopharma company focused on accelerating the development and delivery of transformative medicines in immunology, today announced that, after due consideration in consultation with its independent financial and legal advisors, its Board of Directors determined that the unsolicited indication of interest from Concentra Biosciences, LLC, of which Tang Capital Partners, LP is the controlling shareholder, is not reasonably expected to result in a superior proposal to the planned merger with Alumis Inc. (Nasdaq: ALMS).

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