### [2015-05-6](/feed/2015/05/6/index.md)

##### Alexion Pharmaceuticals
# Alexion Pharmaceuticals agrees to purchase Synageva BioPharma, a maker of rare disease treatments, for US$8.6 billion. 




### Sources:

1. [New York Times](https://www.nytimes.com/2015/05/07/business/dealbook/alexion-puts-its-soaring-stock-price-to-good-use.html)