Acelyrin adopts limited-duration stockholder rights plan

ACELYRIN (SLRN) announced that, in response to Tang Capital Partners’ continued rapid accumulation of 8.8% of ACELYRIN’S outstanding common stock, its Board of Directors has approved the adoption of a limited-duration stockholder rights plan. The ACELYRIN Board and management team continue to engage with stockholders and are focused on maximizing stockholder value. Pursuant to the Rights Plan, the Company is issuing one right for each share of common stock as of the close of business on March 24, 2025. The rights will initially trade with ACELYRIN’s common stock and will become exercisable only if any person acquires 10% or more of the Company’s outstanding common stock