Who, What, Where

Bill Knight and Brian Monahan have been promoted at Bruker Corp., a Billerica-based provider of high-performance scientific instruments and solutions for molecular and materials research as well as for industrial and applied analysis. Knight, currently the company's chief financial officer, will become its chief operating officer, effective Feb. 1. On that day, Monahan, now the company's chief accounting officer, will become CFO.

Julie Lekstrom Himes MD is the new chief medical officer and senior vice president for clinical development at TARIS Biomedical, a Lexington company focused on drug-device convergence for targeted therapies. Himes has broad clinical research and operations experience within the biopharmaceutical industry, including Coley Pharmaceuticals and Millennium Pharmaceuticals.