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XOMA Royalty Enters Agreement to Acquire Generation Bio

Generation Bio (GBIO) | December 15, 2025

By Bob Smith

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XOMA Royalty Corporation has entered into an agreement to acquire Generation Bio Co.

The acquisition includes potential milestone and royalty payments under Generation Bio's collaboration with Moderna.

Generation Bio's cell-targeted lipid nanoparticles (ctLNP) delivery platform will be part of XOMA Royalty's portfolio.

Acquisition Agreement Details

XOMA Royalty to acquire Generation Bio for $4.2913 per share with additional contingent value rights for certain milestones and royalty payments.

Board Approval

Generation Bio's board unanimously approved the merger agreement with XOMA Royalty after a thorough review process.

Support from Stockholders

Approximately 15% of Generation Bio stockholders have signed support agreements to tender their shares in the Offer and support the merger.

  • The acquisition is expected to provide XOMA Royalty with a strategic position in the biotech industry through Generation Bio's innovative delivery platform and collaboration with Moderna.
  • XOMA Royalty aims to leverage Generation Bio's technology to enhance its portfolio and potentially benefit from future development and commercial milestones.

The acquisition of Generation Bio by XOMA Royalty marks a significant step towards enhancing XOMA Royalty's biotech portfolio and leveraging Generation Bio's innovative technologies for potential future success in the industry.