10 BlackRock operations leaders
Chief operating officer titles at BlackRock attach to regions, businesses and platforms in this group: Rob Goldstein, BlackRock's COO since 2014, sits beside regional COOs for UK & Europe, Japan, DACH and Canada and COOs for private markets operations, technology and operations, global product solutions and liquidity and financing. Sandra Boss was COO of the Global Client Business, useful context for a firm setting up COO roles below the top.
Professionals to explore
Andrew Gidney
LinkedInExperience: COO for Business Operations & Technology and BLK Trust Company · BlackRock
Andrew Gidney has been COO for Business Operations & Technology and BLK Trust Company at BlackRock since 2018 and describes responsibility for business and risk management for technology and operations and for AML / KYC Operations. Gidney was Global Head of Portfolio Compliance and COO of BLK Trust Company (2012-2018), Head of Business Infrastructure Services (2009-2012) and Technology & Operations COO (2005-2009) at BlackRock.
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Colleen Davis
LinkedInExperience: Chief Operating Officer, Canada · BlackRock
Country COO questions suit Colleen Davis, Chief Operating Officer, Canada at BlackRock since 2024, after Head of Strategy and Business Analytics for BlackRock Canada (2019-2023). Davis also held UK Retail Sales (2016-2018) and Institutional Client Service Relationship Management (2013-2015) roles at BlackRock and was in Investor Relations at Fortress Investment Group (2012-2013).
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Daniel Dunay
LinkedInExperience: Chief Operating Officer of Global Product Solutions · BlackRock
Product operations questions fit Daniel Dunay, Chief Operating Officer of Global Product Solutions at BlackRock since 2024 and Managing Director, Chief Product Officer since 2022. Dunay was Managing Director, Head of Americas Financial Institutions (2019-2022), Managing Director, Global Head of Compensation & Benefits Pricing Strategy & Analytics (2018-2019) and Managing Director, Global Head of Compensation and Benefits (2016-2018) at BlackRock.
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Maika Jahn
LinkedInExperience: COO Germany, Switzerland, Austria and Eastern Europe (DACH) · BlackRock
Since 2025, Maika Jahn has been COO Germany, Switzerland, Austria and Eastern Europe (DACH) at BlackRock, and a Member of the Management Board BlackRock Asset Management Deutschland AG since 2024, after COO Germany, Austria and Eastern Europe (2023-2024). At DWS Group, Jahn was COO Coverage EMEA, Head of Business Development (2023) and Head of Plattform Business Solutions & Strategy, Digital Investment Plattform (2021-2022).
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Michael Colen
LinkedInExperience: Former Chief Operating Officer, Japan - Managing Director · BlackRock
In 2026 Michael Colen became Chief Operating Officer, Japan - Managing Director at BlackRock, after Global Private Debt Chief Operating Officer - Managing Director (2023-2026) and Global Credit Chief Operating Officer - Managing Director (2021-2023). Colen was Chief of Staff to the President, Managing Director (2017-2021) and in Americas Corporate Strategy - Managing Director (2016-2017), so Colen can compare business and regional COO work.
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Mike Collar
LinkedInExperience: Chief Operating Officer (COO), UK & Europe · BlackRock
Chief Operating Officer (COO), UK & Europe at BlackRock since 2025 and a Managing Director there since 2018, Mike Collar took the role after UK Chief Operating Officer from 2022 to 2025. Collar was a Managing Director at J.P. Morgan (2004-2018) and Corporate Finance Executive at Cazenove & Co. (2000-2004), a fit for questions on moving from a UK COO role to a UK & Europe one.
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Nicolas Roc
LinkedInExperience: Global COO of Liquidity & Financing · BlackRock
Securities lending is the thread in Nicolas Roc's BlackRock titles: APAC Desk Head - Securities Lending Trading (2015-2019), Head of US Equity Trading for Securities Lending (2019-2021), Global COO of Securities Lending (2021-2024), Global COO of Cash Management and Securities Lending (2024-2025) and Global COO of Liquidity & Financing since 2025, within Global Markets.
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Rob Goldstein
LinkedInExperience: Senior Managing Director, Chief Operating Officer · BlackRock
Rob Goldstein has been Senior Managing Director, Chief Operating Officer at BlackRock since 2014, and describes being a member of the Global Executive Committee and co-chair of the Global Operating Committee. Goldstein was Head of BlackRock Solutions (2009-2023), Head of the Institutional Client Business (2012-2014), Managing Director (2001-2012) and Director (1998-2001) at BlackRock, the person to ask about the firm-wide operating model.
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Sandra Boss
LinkedInExperience: Former Senior Managing Director, Chief Operating Officer, Global Client Business · BlackRock
Sandra Boss was Senior Managing Director, Chief Operating Officer, Global Client Business at BlackRock from 2023 to 2024 and has been Senior Managing Director, Chair of BlackRock UK since 2024. Boss was Senior Managing Director, Global Head of Investment Stewardship (2020-2023), and at the Bank of England was External Member, Prudential Regulation Committee (2014-2020) and Independent Member and Risk Committee Chairman, RTGS CHAPS Board (2017-2020).
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Sean Houston
LinkedInExperience: Managing Director - COO Private Markets Operations & Head of Private Markets Client Platform · BlackRock
Private markets and Latin America are the two areas in Sean Houston's recent BlackRock titles: Managing Director - COO Private Markets Operations & Head of Private Markets Client Platform since 2025, and Managing Director - Latin America Chief Operating Officer from 2021 to 2025. Houston's other BlackRock titles were Managing Director - Latin America Head of Business Operations (2016-2021), COO Business Manager - Technology and Operations (2012-2016) and Chief Operating Officer - Global Provider Strategy (2011-2012).
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Choose the right perspective
Rob Goldstein is the call for questions on the firm-wide operating model. Mike Collar, Michael Colen, Maika Jahn and Colleen Davis suit regional COO questions, while Sean Houston, Andrew Gidney, Daniel Dunay and Nicolas Roc cover operations for a business or platform; Sandra Boss adds client business and investment stewardship experience.
Questions to take into the conversation
- 01What does a regional COO at BlackRock own, and what stays with global business and platform COOs?
- 02How should an asset manager decide which operations to centralize globally and which to keep in each region?
- 03How do business COOs at BlackRock work with technology and operations teams on a major platform change?
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.