Union Bancaire Privée Executive and Leadership Team

September, 2026

Leadership Overview

Union Bancaire Privée has 5 executives leading key functions including asset management, operational strategy, financial oversight, and regional administration.

Committed to long-term wealth preservation and global investment excellence, Union Bancaire Privée delivers sophisticated financial solutions to private and institutional clients through a robust network of international financial centers.

Leadership Roles at Union Bancaire Privée

  • Chief Executive Officer, , Asset Management (Asia) - Wee Nah
  • Chief Financial Officer - Mauro Melchionna
  • Chief Operating Officer - Stephane Kiefer
  • Managing Director - Chief Operating Officer Hong Kong - Mark Tsui
  • Managing Director - Chief Operating Officer, Singapore - Jerome Thuillier
  • Wee Nah - Chief Executive Officer, , Asset Management (Asia)

    Wee Nah, the Chief Executive Officer, , Asset Management (Asia) at Union Bancaire Privée, directs all investment strategies across the Asian markets. Overseeing the expansion of asset management portfolios, the Chief Executive Officer, , Asset Management (Asia) ensures alignment with the firm's core mission of long-term wealth growth. This leadership role involves navigating complex regulatory environments while driving regional performance metrics. By optimizing investment vehicles for institutional clients, Wee Nah directly impacts the firm's competitive positioning in the APAC region. The Chief Executive Officer, , Asset Management (Asia) collaborates with global leadership to integrate Swiss banking standards into local market operations. Through rigorous risk assessment and strategic capital allocation, the Chief Executive Officer, , Asset Management (Asia) secures sustainable returns. Ultimately, the Chief Executive Officer, , Asset Management (Asia) maintains the reputation of the firm as a premier provider of wealth management solutions throughout the Asian financial landscape.

    Mauro Melchionna - Chief Financial Officer

    Mauro Melchionna, the Chief Financial Officer at Union Bancaire Privée, directs the financial strategy, capital management, and fiscal reporting for the entire organization. Overseeing the balance sheet and liquidity requirements, the Chief Financial Officer ensures the firm maintains a strong capital position to support long-term growth. This leadership role involves managing investor relations and providing critical financial insights to the board. By monitoring global market trends, Mauro Melchionna directly impacts the firm's investment stability and profitability. The Chief Financial Officer coordinates with regional heads to ensure fiscal discipline across all international offices. Through the implementation of robust financial planning and analysis, the Chief Financial Officer supports the bank's commitment to asset preservation. Ultimately, Melchionna secures the financial health of the institution, enabling the firm to provide consistent value to private and institutional clients worldwide.
    Mauro Melchionna

    Stephane Kiefer - Chief Operating Officer

    Stephane Kiefer, the Chief Operating Officer at Union Bancaire Privée, directs the internal infrastructure and operational efficiency of the global banking platform. Overseeing the integration of technology and administrative processes, the Chief Operating Officer ensures that the firm maintains high standards of service delivery for private clients. This leadership role involves streamlining cross-border workflows to support the bank's asset management objectives. By implementing scalable operational frameworks, Stephane Kiefer directly impacts the firm's ability to manage complex investment portfolios across multiple jurisdictions. The Chief Operating Officer coordinates with the board to refine internal controls and enhance operational resilience. Through the optimization of back-office functions, the Chief Operating Officer supports the broader goal of asset preservation. Ultimately, Kiefer drives the operational excellence required to sustain the firm's position as a leading Swiss private bank in a competitive global market.
    Stephane Kiefer

    Mark Tsui - Managing Director - Chief Operating Officer Hong Kong

    Mark Tsui, the Managing Director - Chief Operating Officer Hong Kong at Union Bancaire Privée, directs the operational activities and administrative functions within the Hong Kong financial hub. Overseeing the local execution of global banking strategies, the Managing Director - Chief Operating Officer Hong Kong ensures that the firm meets the specific needs of the regional client base. This leadership role involves managing local compliance, infrastructure, and team performance to support the bank's growth in the Greater China market. By optimizing local operational workflows, Mark Tsui directly impacts the efficiency of the firm's wealth management services in the region. The Managing Director - Chief Operating Officer Hong Kong collaborates with the global executive team to align local operations with the firm's overarching mission. Through the management of regional resources, the Managing Director - Chief Operating Officer Hong Kong facilitates the delivery of high-quality investment solutions to local clients.

    Jerome Thuillier - Managing Director - Chief Operating Officer, Singapore

    Jerome Thuillier, the Managing Director - Chief Operating Officer, Singapore at Union Bancaire Privée, directs the operational framework and business support functions for the Singapore office. Overseeing the integration of local service delivery with the firm's global asset management standards, the Managing Director - Chief Operating Officer, Singapore ensures seamless client experiences. This leadership role involves managing the operational risks and administrative requirements of the Singapore branch. By refining local processes, Jerome Thuillier directly impacts the firm's ability to scale its wealth management offerings in the Southeast Asian market. The Managing Director - Chief Operating Officer, Singapore coordinates with regional leadership to maintain high standards of operational integrity. Through the oversight of local business support, the Managing Director - Chief Operating Officer, Singapore supports the firm's commitment to long-term asset growth. Ultimately, Thuillier drives the operational success of the Singapore office within the broader global network.

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    Frequently Asked Questions Regarding Union Bancaire Privée Top Executives and Leadership Team

    Who leads Union Bancaire Privée?
    Union Bancaire Privée is led by Wee Nah (Chief Executive Officer, , Asset Management (Asia)), along with executives such as Mauro Melchionna (Chief Financial Officer) and Stephane Kiefer (Chief Operating Officer).
    Who is part of Union Bancaire Privée’s executive team?
    The executive team of Union Bancaire Privée includes leaders such as Wee Nah (Chief Executive Officer, , Asset Management (Asia)), Mauro Melchionna (Chief Financial Officer), Stephane Kiefer (Chief Operating Officer) and other senior executives.
    How many executives does Union Bancaire Privée have?
    Union Bancaire Privée has 5 executives leading key business areas.
    What roles are included in Union Bancaire Privée’s leadership team?
    The leadership team of Union Bancaire Privée includes roles such as Chief Executive Officer, , Asset Management (Asia), Chief Financial Officer, Chief Operating Officer, Managing Director - Chief Operating Officer Hong Kong, Managing Director - Chief Operating Officer, Singapore.