ACELYRIN(SLRN) - 2024 Q4 - Annual Results

Exhibit 2.1 STRICTLY CONFIDENTIAL Proposed Execution Version AGREEMENT AND PLAN OF MERGER by and among ALUMIS INC., ARROW MERGER SUB, INC. and ACELYRIN, INC. Dated as of February 6, 2025 TABLE OF CONTENTS | | | Page | | --- | --- | --- | | | ARTICLE I THE MERGER; CLOSING; SURVIVING CORPORATION | 2 | | 1.1 | The Merger | 2 | | 1.2 | Closing | 2 | | 1.3 | Effective Time | 3 | | 1.4 | Certificate of Incorporation | 3 | | 1.5 | Bylaws | 3 | | 1.6 | Directors of the Surviving Corporation | 3 | | 1.7 | Officers o ...