Merrill Executive and Leadership Team

November, 2026

Leadership Overview

Merrill has 10 executives leading key functions including wealth management, operational strategy, regulatory oversight, and market leadership.

Focused on delivering comprehensive financial solutions, Merrill empowers clients through personalized investment insights and banking integration. This commitment drives long-term financial success across diverse client needs.

Leadership Roles at Merrill

  • Chief Operating Officer - Ronald Koenig
  • Chief Operating Officer for The Gsell Group - Gordana Warga
  • Division Chief Operating Officer & Managing Director - George Castellano
  • Managing Director, Merrill WM Division Chief Operating Officer - Moji Ajaja
  • Director - Regulatory Reform Chief Operating Officer Team - Michael Scherrer
  • Managing Director, Chief of Staff To the Presidents and Co-heads of Merrill - Antonio Maglaras
  • Associate Market Manager, Vice President - Jennifer Cartagena
  • Senior Financial Advisor & Senior VP - Melissa Budnik
  • Managing Director - Jeralyn Seiling
  • PresidentnMarket - Susan Yaeger
  • Ronald Koenig - Chief Operating Officer

    Ronald Koenig, the Chief Operating Officer at Merrill, architects the internal operational frameworks that support global wealth management activities. Managing the efficiency of core business processes, the Chief Operating Officer streamlines workflows to enhance the delivery of college savings strategies and philanthropy services. This role requires constant collaboration with executive leadership to integrate banking solutions into the existing investment management infrastructure. Ronald Koenig drives operational excellence by implementing scalable technology platforms that facilitate seamless client interactions. By monitoring performance metrics across regional divisions, the Chief Operating Officer ensures that the firm meets its strategic objectives while maintaining strict compliance standards. Koenig focuses on optimizing resource allocation to support the expansive needs of the client base, thereby reinforcing the firm's position as a leader in the financial services industry.

    Gordana Warga - Chief Operating Officer for The Gsell Group

    Gordana Warga, the Chief Operating Officer for The Gsell Group at Merrill, directs the operational execution of specialized wealth management services within this specific division. Overseeing the integration of eldercare and small business services, the Chief Operating Officer for The Gsell Group ensures that client-facing teams possess the necessary tools to provide comprehensive financial guidance. This leadership position involves managing internal team dynamics and aligning divisional output with the broader corporate mission. Gordana Warga drives efficiency by refining the delivery of banking and cash management solutions tailored to the unique requirements of the group's clientele. By fostering a culture of precision and accountability, Warga supports the strategic growth of the division. The Chief Operating Officer for The Gsell Group maintains a focus on operational agility, ensuring that the firm remains responsive to evolving market demands.

    George Castellano - Division Chief Operating Officer & Managing Director

    George Castellano, the Division Chief Operating Officer & Managing Director at Merrill, oversees the operational infrastructure supporting large-scale wealth management divisions. Managing the intersection of investment insights and banking services, the Division Chief Operating Officer & Managing Director ensures that regional teams execute strategies with maximum efficiency. This role involves architecting processes that facilitate complex estate planning and retirement services for a broad client demographic. George Castellano drives operational stability by implementing robust risk management protocols across the division. By coordinating with other senior leaders, Castellano aligns divisional activities with the firm's overarching commitment to client interests. The Division Chief Operating Officer & Managing Director focuses on scaling operations to accommodate market expansion, ensuring that the firm continues to provide high-quality financial solutions while maintaining a strong competitive presence in the global finance sector.

    Moji Ajaja - Managing Director, Merrill WM Division Chief Operating Officer

    Moji Ajaja, the Managing Director, Merrill WM Division Chief Operating Officer at Merrill, directs the operational strategy for the wealth management division. Overseeing the implementation of client-focused financial solutions, the Managing Director, Merrill WM Division Chief Operating Officer ensures that all service delivery models align with the firm's core mission. This role involves managing the intersection of investment management and banking services to provide a seamless experience for clients. Moji Ajaja drives operational improvements by analyzing performance data and refining internal processes to support growth in retirement and philanthropy services. By collaborating with cross-functional teams, Ajaja ensures that the division remains agile in a changing financial landscape. The Managing Director, Merrill WM Division Chief Operating Officer maintains a focus on operational excellence, supporting the firm's goal of helping clients achieve their desired financial outcomes.

    Michael Scherrer - Director - Regulatory Reform Chief Operating Officer Team

    Michael Scherrer, the Director - Regulatory Reform Chief Operating Officer Team at Merrill, architects the compliance and operational frameworks necessary to navigate complex financial regulations. Overseeing the alignment of internal policies with evolving legal standards, the Director - Regulatory Reform Chief Operating Officer Team ensures that the firm's wealth management practices remain transparent and secure. This role involves coordinating with legal and operational departments to implement robust governance structures. Michael Scherrer drives the integration of regulatory requirements into daily business operations, facilitating the delivery of investment and banking services without disruption. By monitoring the regulatory environment, Scherrer supports the firm's commitment to ethical conduct and client protection. The Director - Regulatory Reform Chief Operating Officer Team maintains a focus on risk mitigation, ensuring that the organization operates within the highest standards of the global financial industry.

    Antonio Maglaras - Managing Director, Chief of Staff To the Presidents and Co-heads of Merrill

    Antonio Maglaras, the Managing Director, Chief of Staff To the Presidents and Co-heads of Merrill at Merrill, directs the strategic communication and operational coordination between executive leadership and the broader organization. Overseeing the execution of high-level initiatives, the Managing Director, Chief of Staff To the Presidents and Co-heads of Merrill ensures that the firm's wealth management strategy remains cohesive across all divisions. This role involves facilitating decision-making processes and managing the flow of information to support the firm's mission. Antonio Maglaras drives alignment by bridging the gap between executive vision and operational reality, ensuring that resources are directed toward key growth areas like retirement planning and banking solutions. By managing complex projects, Maglaras supports the firm's leadership in maintaining a competitive edge. The Managing Director, Chief of Staff To the Presidents and Co-heads of Merrill focuses on organizational efficiency and strategic clarity.

    Jennifer Cartagena - Associate Market Manager, Vice President

    Jennifer Cartagena, the Associate Market Manager, Vice President at Merrill, directs regional market activities to support the firm's wealth management objectives. Overseeing the performance of local advisory teams, the Associate Market Manager, Vice President ensures that clients receive high-quality investment and banking services tailored to their specific needs. This role involves mentoring financial advisors and fostering a culture of client-first service. Jennifer Cartagena drives market growth by identifying opportunities for expansion in retirement planning and estate services. By coordinating with divisional leadership, Cartagena ensures that regional operations align with the firm's broader strategic goals. The Associate Market Manager, Vice President maintains a focus on client satisfaction and operational excellence, ensuring that the firm's commitment to financial well-being is upheld at the local level. Through consistent engagement, Cartagena supports the firm's mission to help clients achieve their life goals.

    Melissa Budnik - Senior Financial Advisor & Senior VP

    Melissa Budnik, the Senior Financial Advisor & Senior VP at Merrill, directs the delivery of personalized wealth management strategies for a diverse client portfolio. Overseeing the implementation of complex retirement planning, college savings, and estate services, the Senior Financial Advisor & Senior VP ensures that each client receives tailored financial guidance. This role involves leveraging the firm's investment insights and banking solutions to unlock opportunities for long-term financial success. Melissa Budnik drives client engagement by building deep, trust-based relationships and understanding the unique needs of every individual. By collaborating with internal specialists, Budnik provides comprehensive support that goes beyond simple investment management. The Senior Financial Advisor & Senior VP maintains a focus on achieving client goals through disciplined planning and proactive advice. Through dedicated service, Budnik reinforces the firm's commitment to placing client interests first in every financial decision.

    Jeralyn Seiling - Managing Director

    Jeralyn Seiling, the Managing Director at Merrill, directs high-level wealth management initiatives across the North American market. Overseeing complex portfolio strategies, the Managing Director ensures alignment with the firm's commitment to client-centric financial planning. This leadership role involves coordinating with senior stakeholders to refine investment methodologies and expand service offerings in retirement and estate planning. By leveraging the extensive resources of the broader banking network, Jeralyn Seiling optimizes capital allocation for high-net-worth individuals. The Managing Director maintains rigorous standards for financial advisory excellence, ensuring that every client receives tailored guidance. Through constant evaluation of market trends, Seiling drives the firm's competitive edge in the global investment landscape, ultimately securing sustainable growth and long-term value for the diverse client base served by the organization.

    Susan Yaeger - PresidentnMarket

    Susan Yaeger, the PresidentnMarket at Merrill, directs the overall strategic direction and market presence for the firm's wealth management operations. Overseeing the delivery of comprehensive financial solutions, the PresidentnMarket ensures that the organization remains a leader in providing investment insights and banking services. This role involves setting the vision for market expansion and ensuring that the firm's commitment to client interests remains the primary focus. Susan Yaeger drives growth by fostering innovation in retirement planning, philanthropy, and small business services. By leading high-level strategic initiatives, Yaeger ensures that the firm effectively addresses the diverse needs of its global client base. The PresidentnMarket maintains a focus on long-term sustainability and operational excellence, guiding the organization through complex market environments. Through decisive leadership, Yaeger supports the firm's mission to empower clients to achieve the lives they want.

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    Frequently Asked Questions Regarding Merrill Top Executives and Leadership Team

    Who leads Merrill?
    Merrill is led by Ronald Koenig (Chief Operating Officer), along with executives such as Gordana Warga (Chief Operating Officer for The Gsell Group) and George Castellano (Division Chief Operating Officer & Managing Director).
    Who is part of Merrill’s executive team?
    The executive team of Merrill includes leaders such as Ronald Koenig (Chief Operating Officer), Gordana Warga (Chief Operating Officer for The Gsell Group), George Castellano (Division Chief Operating Officer & Managing Director) and other senior executives.
    How many executives does Merrill have?
    Merrill has 10 executives leading key business areas.
    What roles are included in Merrill’s leadership team?
    The leadership team of Merrill includes roles such as Chief Operating Officer, Chief Operating Officer for The Gsell Group, Division Chief Operating Officer & Managing Director, Managing Director, Merrill WM Division Chief Operating Officer, Director - Regulatory Reform Chief Operating Officer Team.