Category: M&A

Cosette Pharmaceuticals, Inc., a U.S.-based, branded specialty pharmaceutical company, announced today the closing of a definitive agreement to acquire the U.S. sales and distribution rights for a portfolio of seven branded products from Assertio Holdings, Inc. (Nasdaq: ASRT). The acquisition expands Cosette's branded portfolio and adds the U.S. rights to SYMPAZAN®, a growing, patent-protected asset, further advancing Cosette's disciplined growth strategy.

Cosette Pharmaceuticals, Inc. (Cosette), a U.S.-based, fully integrated pharmaceutical company, confirms that on 9 December 2025 it served a notice on Mayne Pharma Group Limited (Mayne Pharma, ASX: Ticker MYX) terminating the agreement between Cosette and Mayne Pharma under which Cosette was to acquire all the outstanding shares of Mayne Pharma (Scheme Implementation Deed). Cosette also notes the announcements from Mayne Pharma on 10 December 2025 and 11 December 2025 and confirms that on 11 December 2025 Mayne Pharma served its own notice of termination of the Scheme Implementation Deed on Cosette.

Cosette Pharmaceuticals, Inc. (“Cosette”), a US-based specialty pharmaceutical company, has completed the acquisition of Ambien® and Ambien CR® in the United States from Sanofi US.

We are excited to announce that our women's healthcare portfolio has expanded with the addition of Vyleesi® (Bremelanotide Injection) from Palatin Technologies! Vyleesi® is the only FDA-Approved as-needed treatment for the approximately 6 million premenopausal women who suffer from Hypoactive Sexual Desire Disorder (HSDD). This adds another commercial stage, patent protected product to Cosette's rapidly expanding Women's health portfolio.

Acquisition accelerates Cosette's women's health portfolio; with a differentiated, commercial stage, patent protected product.

Cosette Pharmaceuticals, Inc., a New Jersey-based specialty pharmaceutical company, announced today that it has closed a transaction to acquire the US sales and distribution rights to eight branded commercial products from leading Japanese pharmaceutical company, Daiichi Sankyo Company, Ltd (4568:JP) and affiliates.