Acelyrin, Inc.

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Company Name	Acelyrin, Inc.
Stock Symbol	SLRN

On September 11, 2023, after the markets closed, Acelyrin announced top-line results from Part B of a Phase 2b/3 trial of its Hidradenitis Suppurativa (HS) treatment, izokibep. The Company disclosed that the “primary endpoint of HiSCR75 at week 16 did not meet statistical significance” and that “[in] the primary NRI analysis of Part B, statistical significance was impacted by patients with HiSCR75-100 discontinuing as early as week 4 unrelated to adverse events.”

On this news, Acelyrin's stock price fell $17.19, or 61.6%, over the next two consecutive trading days, to close at $10.71 per share on September 13, 2023, thereby injuring investors.

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If you suffered a loss on your Acelyrin, Inc. investments or would like to inquire about joining an action to recover your loss under the federal securities laws, please complete the form below. Please note that submission of this form does not by itself form an attorney-client relationship nor does filing out this form mean you have joined any lawsuit.

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