Simon Executive and Leadership Team

June, 2026

Leadership Overview

Simon has 9 executives leading key functions including marketing, finance, legal, and development.

Driven by a commitment to creating premier destinations, Simon is dedicated to providing exceptional shopping, dining, and entertainment experiences that serve as vital community gathering places across North America, Europe, and Asia, generating billions in annual sales.

Leadership Roles at Simon

  • Executive VP & Chief Financial Officer - Brian McDade
  • Chief Marketing Officer & President (Simon Brand Ventures) - Mikael Thygesen
  • President & Co-Managing Partner - Holly Simon
  • Co-President (Real Estate, North America) - Eric Sadi
  • President, Development - Mark Silvestri
  • President and Owner N E KEY Consulting Company - Tom Boyer
  • President - The Mills and Premium Outlets - Gary Duncan
  • Chief Marketing Officer - Lee Sterling
  • General Counsel & Secretary - Steven Fivel
  • Brian McDade - Executive VP & Chief Financial Officer

    Brian McDade, the Executive VP & Chief Financial Officer at Simon, directs the company's comprehensive financial strategy, overseeing all fiscal operations and ensuring robust financial health for this S&P 100 real estate investment trust. McDade manages capital allocation, investment analysis, and financial planning, critical functions for a company engaged in owning premier shopping, dining, and entertainment destinations across multiple continents. This executive position involves close collaboration with other leaders to drive billions in annual sales and maintain profitability. By implementing rigorous financial controls and identifying strategic investment opportunities, Brian McDade supports the ongoing development and expansion of Simon's global portfolio. The Chief Financial Officer's responsibilities include managing relationships with investors and financial institutions, ensuring transparency and maximizing shareholder value. Brian McDade's financial acumen is essential for sustaining Simon's market leadership and operational excellence in diverse geographic regions.
    Brian McDade

    Mikael Thygesen - Chief Marketing Officer & President (Simon Brand Ventures)

    Mikael Thygesen, the Chief Marketing Officer & President (Simon Brand Ventures) at Simon, spearheads the strategic direction for Simon Brand Ventures, focusing on innovative marketing solutions and brand partnerships that enhance the value of Simon's premier destinations. Thygesen drives the development of unique advertising and sponsorship opportunities, leveraging the company's extensive real estate footprint across North America, Europe, and Asia. This executive role involves cultivating relationships with national and international brands seeking to connect with millions of consumers who frequent Simon properties daily. By identifying emerging market trends and consumer engagement strategies, Mikael Thygesen ensures Simon Brand Ventures remains at the forefront of the industry, generating significant annual sales and reinforcing the company's status as a leading real estate investment trust. The President's leadership ensures that brand initiatives align with the company's mission to provide exceptional community gathering places. Mikael Thygesen's vision is instrumental in creating impactful brand experiences within Simon's diverse portfolio.
    Mikael Thygesen

    Holly Simon - President & Co-Managing Partner

    Holly Simon, the President & Co-Managing Partner at Simon, shares leadership responsibility for the strategic direction and operational oversight of the company's extensive portfolio of premier shopping, dining, and entertainment destinations. Simon collaborates with other senior executives to drive the company's mission of creating vital community gathering places that generate billions in annual sales across North America, Europe, and Asia. This executive position involves guiding key initiatives related to property development, tenant relations, and market expansion. The Co-Managing Partner's focus is on fostering innovation and ensuring the continued success of Simon's real estate investment trust operations. By championing strategic partnerships and operational efficiencies, Holly Simon contributes significantly to the company's market leadership and financial performance. Holly Simon's leadership is integral to maintaining Simon's position as a global real estate powerhouse.

    Eric Sadi - Co-President (Real Estate, North America)

    Eric Sadi, the Co-President (Real Estate, North America) at Simon, directs the strategic management and operational execution for the company's vast real estate holdings across the North American continent. Sadi oversees the development, leasing, and management of premier shopping, dining, and entertainment destinations, ensuring these properties function as essential community gathering places. This leadership role is pivotal in driving billions in annual sales by optimizing tenant mix, enhancing customer experiences, and identifying new growth opportunities within the region. The Co-President's responsibilities include fostering strong relationships with retailers and stakeholders, aligning operations with Simon's overall business objectives as a leading real estate investment trust. Eric Sadi's deep understanding of the North American market is crucial for maintaining Simon's competitive edge and driving property performance. Eric Sadi's strategic oversight ensures the continued success of Simon's extensive North American portfolio.

    Mark Silvestri - President, Development

    Mark Silvestri, the President, Development at Simon, leads the company's strategic initiatives in acquiring, developing, and redeveloping premier shopping, dining, and entertainment destinations. Silvestri oversees all aspects of the development pipeline, from site selection and design to construction and project management, ensuring these projects align with Simon's mission to create vibrant community gathering places. This executive role is critical for expanding the company's global footprint across North America, Europe, and Asia, driving billions in annual sales through new and revitalized properties. The President of Development's focus includes identifying innovative design concepts and sustainable building practices that enhance property value and tenant appeal. Mark Silvestri's expertise in real estate development is fundamental to Simon's continued growth and its position as a leading real estate investment trust. Mark Silvestri's leadership ensures Simon remains at the forefront of property innovation.
    Mark Silvestri

    Tom Boyer - President and Owner N E KEY Consulting Company

    Tom Boyer, the President and Owner N E KEY Consulting Company at Simon, provides strategic leadership and operational guidance, leveraging extensive experience in the real estate sector. Boyer focuses on enhancing the performance and market presence of Simon's premier shopping, dining, and entertainment destinations. This executive role involves driving initiatives that support the company's objective of creating essential community gathering places and generating billions in annual sales. The President and Owner's responsibilities include identifying key growth opportunities and implementing innovative strategies to optimize property value and tenant success across North America, Europe, and Asia. Tom Boyer's consulting expertise contributes to the strategic planning and execution necessary for Simon's continued success as a leading real estate investment trust. Tom Boyer's insights are vital for navigating complex market dynamics.

    Gary Duncan - President - The Mills and Premium Outlets

    Gary Duncan, the President - The Mills and Premium Outlets at Simon, directs the strategic operations and performance management for a significant segment of the company's premier shopping destinations. Duncan oversees the leasing, marketing, and operational strategies for The Mills and Premium Outlets, ensuring these properties serve as key community gathering places and drive billions in annual sales. This executive role involves fostering strong relationships with retailers and brand partners to enhance the unique value proposition of these outlet centers across North America. The President's focus is on optimizing the customer experience and maximizing revenue generation within this specialized portfolio. Gary Duncan's leadership is instrumental in maintaining Simon's competitive advantage in the premium outlet and value retail sectors. Gary Duncan's expertise ensures these vital retail hubs thrive.

    Lee Sterling - Chief Marketing Officer

    Lee Sterling, the Chief Marketing Officer at Simon, directs all marketing initiatives, ensuring brand consistency and driving consumer engagement across the company's diverse portfolio of premier shopping, dining, and entertainment destinations. Sterling oversees the strategic development and execution of marketing campaigns designed to enhance the customer experience and maximize annual sales generated by Simon's properties. This leadership role involves collaborating with property management teams to implement localized marketing efforts that resonate with community gathering place dynamics. By analyzing market trends and consumer behavior, Sterling ensures Simon's marketing strategies effectively support the company's position as an S&P 100 real estate investment trust. The Chief Marketing Officer's focus remains on amplifying the value proposition of Simon's destinations, fostering strong relationships with retailers, and driving foot traffic through innovative promotional activities. Lee Sterling's expertise is critical in maintaining Simon's reputation for creating vibrant, high-performing retail environments.
    Lee Sterling

    Steven Fivel - General Counsel & Secretary

    Steven Fivel, the General Counsel & Secretary at Simon, provides comprehensive legal counsel and oversees corporate governance for the real estate investment trust. Fivel manages all legal affairs, ensuring compliance with regulations across North America, Europe, and Asia, and safeguarding the company's interests in its ownership of premier shopping, dining, and entertainment destinations. This critical role involves advising the executive team and the Board of Directors on legal matters, risk management, and corporate policies. The General Counsel & Secretary plays a key part in structuring transactions, managing litigation, and maintaining the company's legal framework to support billions in annual sales. By ensuring adherence to legal standards and best practices, Steven Fivel upholds the integrity of Simon's operations and its reputation as an S&P 100 company. Steven Fivel's legal expertise is fundamental to the company's sustained growth and operational stability.

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    Frequently Asked Questions Regarding Simon Top Executives and Leadership Team

    Who leads Simon?
    Simon is led by Brian McDade (Executive VP & Chief Financial Officer), along with executives such as Mikael Thygesen (Chief Marketing Officer & President (Simon Brand Ventures)) and Holly Simon (President & Co-Managing Partner).
    Who is part of Simon’s executive team?
    The executive team of Simon includes leaders such as Brian McDade (Executive VP & Chief Financial Officer), Mikael Thygesen (Chief Marketing Officer & President (Simon Brand Ventures)), Holly Simon (President & Co-Managing Partner) and other senior executives.
    How many executives does Simon have?
    Simon has 9 executives leading key business areas.
    What roles are included in Simon’s leadership team?
    The leadership team of Simon includes roles such as Executive VP & Chief Financial Officer, Chief Marketing Officer & President (Simon Brand Ventures), President & Co-Managing Partner, Co-President (Real Estate, North America), President, Development.