Dr. Nicholson was most recently CEO at Nimbus Therapeutics. Prior to Nimbus, Dr. Nicholson spent 25 years at Merck, where he held various strategic, leadership and operational roles across diverse therapeutic areas including inflammation, immunology and neuroscience, amongst others. He began his career at Merck Frosst in Montreal as a senior research biologist and advanced through various positions of increasing responsibility, including vice president and site head of the Merck Neurosciences Research site in San Diego, vice president of immunology and infectious diseases and then vice president and worldwide discovery head for the Bone, Respiratory, Immunology and Endocrine franchise based in New Jersey. Don has co-authored more than 150 publications in peer reviewed scientific and medical journals and is internationally recognized for his contributions to the field of apoptotic cell death. Don received his doctorate in biochemistry from the University of Western Ontario and trained as a Medical Research Council postdoctoral fellow at the University of Munich in Germany. He is the recipient of multiple academic and professional honors. Don is also a member of the Board of Directors of Kymera Therapeutics and Generation Bio.