John Davis is a Senior Principal Scientist in the Analytical Research and Development department of the Biotherapeutics Pharmaceutical Sciences organization at Pfizer Research and Development. Currently leading a group of scientists supporting CMC development of biotherapeutic candidates across a wide range of disease areas and modalities, John has held a variety of analytical roles at various academic and industrial institutions throughout his 28-year career. He attended Clark University in Worcester MA, where he earned a Bachelor of Arts in Chemistry.