Arianne M. Collette serves as Managing Director, Head of U.S. Equities at DTCC, based in Jersey City. In this newly created role, Arianne is responsible for leading the strategic planning and execution of DTCC’s U.S. Equities business objectives, driving growth initiatives, revenue generation, process improvements, and market expansion. She partners across the organization to advance innovation, capital efficiency, and operational risk management within DTCC’s clearing and settlement infrastructure, ensuring alignment with regulatory requirements and industry priorities.

Arianne has more than 20 years of experience in securities finance, with a proven track record of delivering growth and enhancing competitive positioning in complex global environments. Her expertise spans strategic oversight, operational management, and managing significant volumes of equity and fixed income trading, clearing, and settlement activity.

Prior to joining DTCC, Arianne held senior leadership roles at Morgan Stanley, including Chief Operating Officer and Head of Strategy for Reinvestment within Corporate & Institutional Solutions, Global Head of Sales Strategy, and Americas Head of Resource Optimization. In these roles, she was responsible for margin, capital, and collateral optimization strategies for both centrally cleared and uncleared activity.

Arianne is also the co-founder and global chair of Women in Securities Finance, a global industry group of over 1,000 members dedicated to promoting diversity and inclusion within the financial services industry.