Stacey Mullin

Stacey Mullin, Senior Managing Director, is BlackRock’s Deputy Chief Operating Officer as well as the firm’s Global Chief of Staff. A member of BlackRock’s Global Executive Committee, Ms. Mullin helps align the firm horizontally to deliver the spectrum of BlackRock’s capabilities seamlessly to our clients.

As Deputy Chief Operating Officer, Ms. Mullin is responsible for partnering with functional and regional management to support growth and client service across channels as well as for managing risk, promoting operational efficiency and responding to market and regulatory change.

As Global Chief of Staff, Ms. Mullin advises senior leadership on strategic priorities and engagements with clients, policymakers, the BlackRock Board of Directors and other key stakeholders around the world.

Prior to her current appointments, Ms. Mullin was based in London and served as COO for the Europe, Middle East & Africa region. Before that, she was COO for the firm’s capital markets businesses.

Ms. Mullin joined the firm in 2007 as part of the Financial Markets Advisory team, where she led initiatives to advise central banks and major financial institutions during the Global Financial Crisis. Over the years, Ms. Mullin has helped guide the firm through significant strategic, market, and geopolitical change, including the integration of acquisitions, AI implementation, Brexit, and the COVID-19 pandemic. She has played a key role in evolving the firm's business and financial strategy in response to changing market dynamics, industry developments, and internal growth priorities.

Ms. Mullin has been recognized for her leadership in the financial services industry, including as one of Barron’s Most Influential Women in U.S. Finance in 2025 and Financial News’ Most Influential Women in European Finance in 2020.

Ms. Mullin earned a BA degree in Mathematics from Harvard University and began her career at Oliver Wyman, a financial services consulting firm.