Acelyrin, Inc.

(NASDAQ GS: SLRN)

Rigrodsky Law, P.A. is investigating Acelyrin, Inc. (“Acelyrin”) regarding possible breaches of fiduciary duties and other violations of law related to Acelyrin’s agreement to be acquired by Alumis Inc. (“Alumis”). Under the terms of the agreement, Acelyrin shareholders will receive 0.4274 shares of Alumis common stock for each share of Acelyrin common stock owned.

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Number of Shares Purchased

Date(s) Shares Purchased

Purchase Price Per Share

Number of Shares Sold

Date(s) Shares Sold

Sale Price Per Share

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Date of signing: 02/22/2025

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