Arcellx acquired by Gilead Sciences
Context
Biopharmaceutical corporation Gilead Sciences completed the acquisition of clinical-stage biotechnology firm Arcellx structured via a cash tender offer of $115 per share alongside a non-transferable contingent value right of $5 per share payable upon achieving $6.0 billion in cumulative global net sales through year-end 2029. The cash consideration reflected a 68% premium over Arcellx's 30-day volume-weighted average price as of February 20, 2026. Prior to the buyout, Gilead held an 11.5% equity stake in Arcellx following a 2022 collaboration agreement through its Kite cell therapy unit. The transaction secures full operational control over the lead investigational CAR-T candidate anito-cel, an autologous treatment for relapsed or refractory multiple myeloma currently under FDA review with a PDUFA action date scheduled for December 23, 2026. At the time of transaction closing on April 28, 2026, following its initial announcement on February 23, 2026, Arcellx posted LTM revenue of LOGIN and counted approximately 200 employees. Arcellx retained Centerview Partners as exclusive financial advisor and Wilson Sonsini Goodrich & Rosati as legal advisor, while Gilead was advised financially by BofA Securities and Morgan Stanley, with Ropes & Gray acting as legal counsel. Financially, the acquisition creates near-term earnings dilution of roughly $5.6 per share in 2026 due to clinical development investments and transaction expenses, with EPS accretion expected starting in 2028 following regulatory clearance. This strategic buyout enables Gilead to eliminate all remaining profit-sharing, commercial milestones, and royalty payments under the former joint agreement, consolidating full commercial rights over the proprietary D-Domain platform to compete directly within the multi-billion-dollar multiple myeloma treatment market.
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Target
Within the clinical-stage biotechnology and immuno-oncology landscape, advanced cell therapy platforms represent a critical frontier for treating refractory hematologic malignancies. Founded in 2014 and based in Redwood City, California, Arcellx focuses on developing genetically engineered immunotherapies that reprogram patient immune cells to recognize and destroy cancer targets. The company's core technological foundation rests on a proprietary synthetic binding domain platform designed to enhance binding specificity and affinity while mitigating severe treatment-related toxicities. Its clinical development pipeline is anchored by an investigational BCMA-directed CAR-T cell therapy engineered for patients suffering from relapsed or refractory multiple myeloma. Operating as a specialized clinical research entity, the organization leverages internal bioengineering capabilities to discover, evaluate, and advance next-generation cellular therapies and bispecific constructs aimed at incurable oncological indications.
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REFERENCES
Revenue range: 10M - 30M USD
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Authors: verified mynth contributor (mynth data is contributed by M&A / PE professionals and systematically cross-verified with private deal documents and official press releases).
Press release: view release
Acquirer: gilead sciences