Mayne Pharma Earns Back $14.4M in Legal Costs After Court Win Over Cosette

Mayne Pharma has received $14.4 million from Cosette Pharmaceuticals following a Supreme Court of New South Wales costs order, marking a key milestone in the Mayne Pharma Cosette legal settlement and strengthening the company's balance sheet ahead of a pending appeal decision.

By Josua Ferreira -

Key Takeaways

  • Mayne Pharma (ASX: MYX) received $14,410,714.49 from Cosette Pharmaceuticals on 5 June 2026, recovering legal costs and interest awarded by the Supreme Court of New South Wales.
  • The payment follows an October 2025 judgment dismissing all of Cosette's claims and issuing an adverse costs order against Cosette after it purportedly terminated a Scheme Implementation Deed signed in February 2025.
  • The $14.4 million represents recovery of past legal expenditure rather than new operating revenue, but directly strengthens Mayne Pharma's cash position and balance sheet flexibility.
  • A Court of Appeal decision remains pending following a hearing on 2–3 June 2026, with no timeline provided for when the reserved judgment will be delivered.
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