Thermo Fisher Scientific Inc. has entered an agreement to acquire QIAGEN N.V., a global provider of molecular diagnostics and sample preparation technologies, in a transaction valued at approximately $11.5 billion. QIAGEN employs approximately 5,100 people at 35 locations in more than 25 countries. The company generated revenues of $1.5 billion in 2019. Its sample preparation technologies are used to extract, isolate and purify DNA, RNA and proteins from a wide range of biological samples. Th...