Marissa Guiang is a 2025–2026 Millennium fellow and the chief operating officer for BlackRock’s Emerging Market and Asia Pacific Fundamental Equities business. She started her career at BlackRock in 2015 and has held various positions within the firm’s Portfolio Management Group and Aladdin Business. Guiang graduated in 2022 with a dual-degree MBA and Master of Science from Columbia Business School and Columbia University Graduate School of Journalism. She received her Bachelor of Science from Cornell University’s School of Hotel Administration in 2015 and is also a graduate of the University of Chicago Laboratory Schools. She is part of the 2024 cohort at the Fellowships at Auschwitz for the Study of Professional Ethics cohort and was named to the 2023 INvolve Role Models Top 100 Future Women Leaders list. Originally from Chicago, Guiang currently resides in Hong Kong. She has completed all six world marathon majors and now focuses her athletic endeavors on CrossFit and Hyrox.