Latest Pharmaceutical Mergers News

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Mayne Pharma has rejected Cosette Pharmaceuticals’ notice to terminate their merger agreement, citing Cosette’s failure to meet obligations that led to regulatory approval issues. The dispute raises fresh uncertainty over the proposed acquisition’s future.
Ada Torres
Ada Torres
10 Dec 2025
Mayne Pharma has won a key legal battle against Cosette Pharmaceuticals, clearing the way for its acquisition scheme to proceed pending final approvals. Shareholders can expect the deal to move forward with payments scheduled soon.
Victor Sage
Victor Sage
16 Oct 2025
Mayne Pharma has firmly rejected a fresh termination notice from Cosette Pharmaceuticals alleging breaches related to FDA disclosure, escalating an ongoing contractual dispute with significant legal implications.
Ada Torres
Ada Torres
5 Aug 2025
Mayne Pharma shareholders have overwhelmingly approved a scheme for Cosette Pharmaceuticals to acquire the company, setting the stage for a pivotal court hearing later this year.
Victor Sage
Victor Sage
18 June 2025
Mayne Pharma rejects Cosette Pharmaceuticals’ claims of valid termination of their scheme deal, setting the stage for a September court showdown while urging shareholders to back the scheme in June.
Ada Torres
Ada Torres
16 June 2025
Mayne Pharma rebuffs Cosette's claim of a material adverse change in their merger scheme and secures FDA clearance on regulatory concerns, maintaining its commitment to the deal's completion.
Ada Torres
Ada Torres
4 June 2025