Aggie McMahon Stephens, MSc, is an associate director on the Science Philanthropy Accelerator for Research and Collaboration (SPARC) team at Milken Institute Philanthropy. With a background in clinical neuroscience, she specializes in science philanthropy, research sector development, and global collaborations that maximize the impact of investments in science. She advises on giving strategies and implementation tactics that holistically benefit the research ecosystem. Prior to joining the Institute, she was a science program specialist at The Kavli Foundation, where she acted as program director for the International Brain Initiative, facilitating cross-sector collaborations for large-scale neuroscience projects. Stephens was previously the program manager for ENIGMA, an international consortium in neuroimaging and genomics. She earned a BS from the University of North Carolina and an MSc in Clinical Science from the University of Colorado. Stephens additionally serves as a board member for the Institute of Neuroethics. She is based in the Institute’s Washington, DC office.