Leadership Overview
Lantheus has 6 executives leading key functions including strategy, information technology, financial management, corporate communications, human resources, and legal administration.
Focused on advancing medical imaging and diagnostic precision, Lantheus delivers innovative healthcare technology solutions that empower clinicians to identify, treat, and monitor complex diseases across global markets.
Focused on advancing medical imaging and diagnostic precision, Lantheus delivers innovative healthcare technology solutions that empower clinicians to identify, treat, and monitor complex diseases across global markets.
Leadership Roles at Lantheus
Mary Anne Heino - Interim Chief Executive Officer & Executive Chairperson
Mary Anne Heino, the Interim Chief Executive Officer & Executive Chairperson at Lantheus, directs the overarching strategic vision for the organization. Overseeing the integration of medical imaging technologies and targeted therapeutics, the Interim Chief Executive Officer & Executive Chairperson ensures alignment between research initiatives and clinical diagnostic needs. This leadership role involves managing board relations while driving long-term growth across North American and international markets. By prioritizing the development of advanced software and health technologies, Mary Anne Heino maintains the company's competitive edge in the pharmaceutical manufacturing sector. The Interim Chief Executive Officer & Executive Chairperson fosters a culture of innovation, ensuring that diagnostic tools effectively support patient care outcomes. Through rigorous oversight of corporate governance and operational performance, the executive secures the stability of the enterprise while expanding the global footprint of the firm.
Robert Marshall - Chief Financial Officer & Treasurer
Robert Marshall, the Chief Financial Officer & Treasurer at Lantheus, manages the fiscal health and capital allocation strategies for the organization. Overseeing financial planning, investor relations, and treasury operations, the Chief Financial Officer & Treasurer ensures the company maintains the liquidity required to fund research into targeted therapeutics and medical imaging advancements. This leadership role involves analyzing market trends to support expansion efforts across diverse geographic regions. By optimizing the capital structure and monitoring budgetary performance, Robert Marshall directly impacts the ability of the firm to deliver innovative diagnostic tools to the healthcare market. The Chief Financial Officer & Treasurer works closely with the board to communicate financial results and long-term value creation to shareholders. Through disciplined financial oversight, the executive supports the sustainable growth of the business, ensuring that resources remain focused on high-impact healthcare technology projects that improve patient outcomes.

Lee Howe - Chief Information Officer
Lee Howe, the Chief Information Officer at Lantheus, architects the digital infrastructure necessary to support advanced medical imaging and diagnostic data processing. Overseeing the cybersecurity framework and enterprise software systems, the Chief Information Officer ensures that clinicians receive reliable, real-time access to critical health technology solutions. This leadership role involves managing the technological roadmap to support global operations across the United States, Canada, and Sweden. By implementing scalable cloud solutions and data analytics platforms, Lee Howe directly enhances the efficiency of diagnostic tool development. The Chief Information Officer collaborates with the executive team to integrate artificial intelligence into the product portfolio, thereby improving patient monitoring capabilities. Through the modernization of internal systems, the executive drives digital transformation, ensuring that the company remains at the forefront of healthcare technology innovation while maintaining strict compliance with international data security standards.

Linda Lennox - Chief of Staff & Vice President, Corporate Communications
Linda Lennox, the Chief of Staff & Vice President, Corporate Communications at Lantheus, coordinates executive operations and manages the public narrative of the company. Overseeing internal and external communications, the Chief of Staff & Vice President, Corporate Communications ensures that the mission of providing innovative diagnostics and therapeutics remains clear to stakeholders. This leadership role involves facilitating cross-departmental collaboration to streamline strategic initiatives and corporate messaging. By managing the reputation of the firm, Linda Lennox strengthens the market position of the organization within the healthcare technology sector. The Chief of Staff & Vice President, Corporate Communications aligns corporate outreach with the broader goals of the executive team, ensuring consistent communication across all global offices. Through the development of comprehensive engagement strategies, the executive fosters transparency and trust, supporting the overall growth and public perception of the company as a leader in medical imaging and diagnostic solutions.
Jamie Spaeth - Chief People Officer
Jamie Spaeth, the Chief People Officer at Lantheus, directs the human capital strategy to attract and retain top talent in the healthcare technology industry. Overseeing organizational development, talent acquisition, and employee engagement, the Chief People Officer ensures that the workforce possesses the expertise required to pioneer medical imaging and diagnostic advancements. This leadership role involves cultivating a high-performance culture that supports the mission of improving patient care through innovation. By implementing professional development programs and diversity initiatives, Jamie Spaeth drives employee alignment with the strategic objectives of the firm. The Chief People Officer collaborates with other executives to ensure that the organizational structure supports rapid growth across international locations. Through the management of compensation and benefits, the executive maintains a competitive environment that empowers staff to deliver cutting-edge software and health technologies, ultimately contributing to the long-term success and operational excellence of the company.

Daniel Niedzwiecki - Chief Administrative Officer, General Counsel & Corporate Secretary
Daniel Niedzwiecki, the Chief Administrative Officer, General Counsel & Corporate Secretary at Lantheus, manages the legal, regulatory, and administrative functions of the organization. Overseeing intellectual property protection, compliance, and corporate governance, the Chief Administrative Officer, General Counsel & Corporate Secretary ensures that the development of medical imaging and diagnostic tools adheres to global regulatory standards. This leadership role involves mitigating legal risks while supporting the strategic expansion of the company into new markets. By providing counsel on complex business transactions and operational policies, Daniel Niedzwiecki enables the firm to navigate the evolving healthcare landscape effectively. The Chief Administrative Officer, General Counsel & Corporate Secretary maintains the integrity of corporate records and board proceedings, ensuring that all administrative processes support the overarching mission. Through rigorous legal oversight, the executive protects the assets and reputation of the company, facilitating the continued delivery of innovative healthcare technology solutions to clinicians worldwide.

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