Alumis (ALMS) and ACELYRIN (SLRN) to Merge

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Alumis and ACELYRIN Announce Amended Merger Agreement

April 21, 2025 6:30 AM EDT

ACELYRIN stockholders to receive increased ownership in the combined company through revised exchange ratio; Alumis and ACELYRIN stockholders to now own approximately 52% and 48%, respectively, of the combined company on a fully diluted basis

Merger maximizes the potential value for ACELYRIN stockholders and creates a stronger combined company, best-positioned to realize long-term value of multiple late-stage assets

ACELYRIN files investor presentation highlighting benefits of proposed merger and comprehensive Board process

Special Meeting of Stockholders for both companies to be held May 13, 2025

SOUTH SAN FRANCISCO, Calif. and LOS... More