Simon Executive and Leadership Team

May, 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 community gathering places, generating billions in annual sales across its global portfolio.

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
  • President and Owner N E KEY Consulting Company - Tom Boyer
  • Co-President (Real Estate, North America) - Eric Sadi
  • President - The Mills and Premium Outlets - Gary Duncan
  • President, Development - Mark Silvestri
  • 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 financial operations and strategic fiscal planning. McDade oversees all aspects of financial management, including accounting, treasury, investor relations, and capital allocation, ensuring the fiscal health of this real estate investment trust. This critical role involves managing the financial performance of premier shopping, dining, and entertainment destinations across North America, Europe, and Asia. By providing rigorous financial oversight and strategic guidance, the Executive VP & Chief Financial Officer supports Simon's growth objectives and commitment to delivering shareholder value. Brian McDade's expertise is essential in navigating complex financial markets and optimizing the company's capital structure to sustain its position as an S&P 100 company and generate billions in annual sales.
    Brian McDade

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

    Mikael Thygesen, the Chief Marketing Officer & President (Simon Brand Ventures) at Simon, spearheads innovative brand ventures and marketing strategies that extend Simon's market influence. Thygesen directs the development of new revenue streams and brand partnerships, leveraging Simon's extensive portfolio of premier destinations. This executive role involves identifying emerging market opportunities and translating them into actionable business initiatives that enhance property value and tenant success. By fostering strategic alliances and pioneering unique brand experiences, Thygesen supports Simon's position as an S&P 100 company. The President (Simon Brand Ventures) ensures that marketing efforts are aligned with the company's mission to create dynamic community gathering places. Mikael Thygesen's leadership drives the evolution of Simon's brand presence, contributing significantly to the generation of billions in annual sales through creative commercial ventures.
    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 real estate portfolio. Simon's role involves guiding the company's engagement with premier shopping, dining, entertainment, and mixed-use destinations across global markets. This executive position requires a deep understanding of real estate investment and development to ensure properties serve as vibrant community gathering places. By collaborating with other senior leaders, Holly Simon contributes to the company's mission of creating exceptional consumer experiences and driving significant annual sales. The President & Co-Managing Partner plays a vital part in maintaining Simon's status as an S&P 100 company through astute management and strategic vision.

    Tom Boyer - President and Owner N E KEY Consulting Company

    Tom Boyer, the President and Owner N E KEY Consulting Company at Simon, provides specialized leadership and strategic insights influencing the company's operational framework. Boyer's expertise contributes to the enhancement of Simon's premier shopping, dining, and entertainment destinations, ensuring their continued success as community gathering places. This role involves leveraging consulting acumen to identify opportunities for operational improvement and strategic growth within the real estate investment trust. By focusing on key performance indicators and market dynamics, Boyer supports the company's objective of generating billions in annual sales. The President and Owner N E KEY Consulting Company's contributions are integral to maintaining the high standards expected of an S&P 100 company like Simon.

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

    Eric Sadi, the Co-President (Real Estate, North America) at Simon, leads the strategic development and management of the company's real estate assets across the North American region. Sadi oversees the acquisition, development, and operational performance of premier shopping, dining, and entertainment destinations, ensuring they function as key community gathering places. This executive role involves driving growth and maximizing value within one of Simon's core geographic markets. By focusing on market-specific opportunities and operational efficiencies, Eric Sadi contributes significantly to the company's overall success and its generation of billions in annual sales. The Co-President (Real Estate, North America) plays a pivotal part in upholding Simon's reputation as a leading S&P 100 company.

    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 of Simon's specialized outlet and large-scale mixed-use properties. Duncan oversees the management and leasing of these unique destinations, ensuring they provide exceptional value and shopping experiences for consumers across North America. This leadership position is critical for optimizing the profitability and tenant mix within The Mills and Premium Outlets portfolio. By focusing on market trends and consumer demand, Gary Duncan drives initiatives that enhance property appeal and contribute to the company's billions in annual sales. The President - The Mills and Premium Outlets ensures these properties remain attractive retail environments and community assets.

    Mark Silvestri - President, Development

    Mark Silvestri, the President, Development at Simon, leads the company's strategic development initiatives for new properties and the expansion of existing premier shopping, dining, and entertainment destinations. Silvestri oversees the entire development lifecycle, from site selection and acquisition to design, construction, and project management across global markets. This executive role is fundamental to Simon's growth strategy, ensuring the creation of innovative and high-performing real estate assets that serve as community gathering places. By identifying and executing on development opportunities, Mark Silvestri directly contributes to the company's objective of generating billions in annual sales. The President, Development ensures Simon remains at the forefront of real estate innovation as an S&P 100 company.
    Mark Silvestri

    Lee Sterling - Chief Marketing Officer

    Lee Sterling, the Chief Marketing Officer at Simon, directs all marketing initiatives to enhance the appeal and performance of Simon's premier shopping, dining, and entertainment destinations. Sterling oversees the development and execution of brand strategies, advertising campaigns, and digital marketing efforts designed to drive foot traffic and consumer engagement across North America, Europe, and Asia. This leadership role involves collaborating with property management teams to ensure consistent brand messaging and customer experience. By analyzing market trends and consumer behavior, Sterling identifies opportunities to innovate marketing approaches, thereby supporting the company's objective of generating billions in annual sales. The Chief Marketing Officer ensures that Simon's properties remain vibrant community gathering places through compelling promotional activities and strategic partnerships. Sterling's focus remains on maximizing property value and tenant sales through impactful marketing endeavors.
    Lee Sterling

    Steven Fivel - General Counsel & Secretary

    Steven Fivel, the General Counsel & Secretary at Simon, directs the company's legal affairs and corporate governance. Fivel oversees all legal matters, ensuring compliance with regulations across North America, Europe, and Asia, and advising on corporate strategy to protect Simon's interests. This executive function is crucial for managing the legal aspects of owning and operating premier shopping, dining, and entertainment destinations. By providing expert legal counsel, the General Counsel & Secretary supports the company's commitment to ethical business practices and risk mitigation. Steven Fivel's role is integral to maintaining the integrity and stability of Simon, an S&P 100 company, as it continues to generate billions in annual sales and serve as a vital community hub.

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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, President and Owner N E KEY Consulting Company, Co-President (Real Estate, North America).