July 28 (Reuters) - Biogen (BIIB.O) agreed to buy rare disease drugmaker Reata Pharmaceuticals (RETA.O) for nearly $6.5 billion, the first large acquisition under new CEO Christopher Viehbacher as he seeks to return the drugmaker to growth.
Through the deal, Biogen said it will gain Texas-based Reata's recently approved drug Skyclarys to treat a rare genetic disorder that causes progressive damage to the nervous system.
It already makes Spinraza, a treatment for the rare muscle-wasting disorder called spinal muscular atrophy, and a treatment for a rare type of amyotrophic lateral sclerosis.
Biogen said it will pay Reata $172.50 per share in cash, which represents a 58.9% premium to the stock's last closing price.
Reuters GraphicsShares of Reata surged nearly 52% to $164.76 in early trading, while Biogen's shares fell marginally to $261.14.
Persons:
Christopher Viehbacher, Viehbacher, Biogen, Eisai, Baird, Brian Skorney, Manas Mishra, Bhanvi, Shinjini
Organizations:
Pharmaceuticals, Reuters, Thomson
Locations:
Texas, United States, Bengaluru