BMRN ▲ +0.0% - BioMarin Pharmaceutical Inc. $BMRN BMRN - BioMarin Announces Close of the Alesta Therapeutics Acquisition BioMarin Pharmaceutical closed its acquisition of Alesta Therapeutics, a move that expands its portfolio in the rare disease space. The stock was essentially flat on the news, suggesting the deal's impact was already reflected in the share price or that investors are waiting for details on how the acquisition will contribute to future growth. 01-SEP-2026 09:05 AM ET