Thermo Fisher Scientific Inc. has completed its acquisition of Olink Holding AB, a provider of next-generation proteomics solutions. The transaction values Olink at approximately $3.1 billion. Olink will become part of Thermo Fisher’s Life Sciences Solutions segment. “We are excited to welcome Olink colleagues to Thermo Fisher,” said Marc N. Casper, chairman, president and chief executive officer of Thermo Fisher. “Protein research is key to advancing our understanding of human biology...