Jim Manning

Jim Manning is the Co-Chief Investment Officer, Portfolio Manager, and Principal at Sirios Capital Management, based in Boston, MA, where he has served since January 2015. In this role, he is responsible for overseeing investment strategies, portfolio construction, and risk management for the firm's assets, with a particular focus on long/short equity investments.

Manning's career spans over two decades, with previous experience as a Portfolio Manager at leading hedge funds including BlueCrest Capital Management, LLP, and Guggenheim Global Trading. At these firms, he managed multi-asset portfolios with a concentration in U.S. and global equities, often incorporating event-driven and opportunistic investment strategies across sectors such as technology, consumer, healthcare, and industrials.

He holds an MBA from the Stanford University Graduate School of Business and a BA from Dartmouth College, credentials reflecting strong analytical and leadership skills. Manning is recognized for his disciplined investment process and his ability to navigate complex, volatile markets while generating consistent returns for institutional clients.