Clovis Oncology, Inc. announced that effective as of March 31, 2016, upon the previously announced resignation of Erle T. Mast as the Chief Financial Officer of the company, Daniel W. Muehl, the company's current Vice President of Finance, has been appointed as the company's principal financial officer and principal accounting officer. Prior to joining the company in 2015, Mr. Muehl was the Chief Financial Officer of Somalogic, Inc.