Xenetic Biosciences Announces All-Stock Merger with Santersus, Leaving Existing Shareholders with 15% Stake
Xenetic Biosciences (XBIO) will merge with private Santersus AG in an all-stock deal, creating a Nasdaq-listed company focused on NET-targeting therapies. Existing XBIO shareholders will own 15% of the combined entity, named Santersus Bio (SNTS), while Santersus shareholders get 85%. The merger, expected to close in Q4 2026, combines four clinical programs, including two with FDA Breakthrough Device Designation. The combined company will be led by Santersus CEO James Ladtkow.



