Lourie Zak has been appointed chief financial officer PBS Biotech, Inc.  Ms. Zak takes over financial responsibility as the company brings its novel single-use bioreactors to market. Ms. Zak joins the company from Amgen, where she held executive roles of increasing responsibility. For the past four years, Ms. Zak was executive director of finance for Amgen’s Global Commercial Operations at the Thousand Oaks, CA headquarters. She provided financial analysis and support to executive leadership in...