ARCELLX INC - SCHEDULE 13G/A Filing

FMR LLC, a significant holder, has filed a Schedule 13G/A amendment concerning ARCELLX INC. The filing indicates a beneficial ownership of 309,117.46 shares of common stock, representing 0.5% of the class. This ownership is primarily through direct possession of sole dispositive power. The filing also notes that while FMR LLC holds a substantial interest, no single other person is known to have the right to receive or direct the sale of more than five percent of the outstanding common stock. The amendment is made in accordance with Rule 13d-1(b) and includes certifications regarding the ordinary course of business for the acquisition and holding of these securities. The reporting date for this amendment is March 6, 2026, with the event date of the statement being February 27, 2026. Previous filings referenced include accession numbers from 2023 and 2024.