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BioCryst Receives Early Termination of HSR Waiting Period for Astria Acquisition

BioCryst Pharmaceuticals, Inc. (BCRX) | December 3, 2025

By Fiona Wilson

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BioCryst Pharmaceuticals received early termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act for the proposed acquisition of Astria Therapeutics, Inc.

The termination of the waiting period is a significant step towards the completion of the merger which is expected to close in the first quarter of 2026.

BioCryst is a global biotechnology company focused on developing and commercializing medicines for hereditary angioedema and rare diseases.

Early Termination of HSR Waiting Period

BioCryst Pharmaceuticals received early termination of the waiting period under the HSR Act for the acquisition of Astria Therapeutics, Inc.

Merger Closing Timing

The merger between BioCryst and Astria is expected to close in the first quarter of 2026, subject to customary closing conditions.

BioCryst's Focus

BioCryst Pharmaceuticals is dedicated to improving the lives of individuals with hereditary angioedema and other rare diseases through innovative medicines.

  • The early termination of the waiting period indicates progress towards the completion of the merger.
  • BioCryst's focus on rare diseases highlights its commitment to addressing unmet medical needs in the healthcare sector.

The early termination of the waiting period is a positive development for BioCryst Pharmaceuticals, signaling advancement towards the completion of the merger with Astria Therapeutics. This step underscores BioCryst's commitment to expanding its portfolio and addressing critical medical challenges.