StockWatch
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Biotechnology: Pharmaceutical Preparations
MergerMay 4, 2026, 09:17 AM

Gyre Therapeutics Completes $300M All-Stock Merger with Cullgen

AI Summary

Gyre Therapeutics, Inc. announced the completion of its previously announced all-stock acquisition of Cullgen Inc., valued at approximately $300 million. Cullgen now operates as a wholly owned subsidiary of Gyre, creating a U.S.- and China-based fully integrated biopharmaceutical company. The combined entity boasts a revenue-producing commercial asset, ETUARY®, and a robust pipeline of products and candidates, including targeted protein degraders and degrader-antibody conjugates. Dr. Ying Luo, former CEO of Cullgen, has been appointed President and CEO of Gyre, which will continue to trade on Nasdaq under the ticker "GYRE".

Key Highlights

  • Gyre Therapeutics completed the acquisition of Cullgen Inc. in an all-stock transaction.
  • The acquisition valued Cullgen at approximately $300 million.
  • Cullgen became a wholly owned subsidiary of Gyre Therapeutics.
  • Dr. Ying Luo, former Cullgen CEO, was appointed President and CEO of Gyre Therapeutics.
  • The combined company has a revenue-producing commercial asset, ETUARY®, and a pipeline from discovery to Phase 3.
  • Gyre will convene a stockholder meeting on June 10, 2026, for the Conversion Proposal.
  • The merger is intended to qualify as a tax-free reorganization under Section 368(a) of the Internal Revenue Code.
  • The transaction is accounted for as a combination of entities under common control by GNI Group Ltd.