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Meet Our Leadership Team

Our leaders bring decades of experience in specialty care, generics, and operations. Together, they’re guiding Mallinckrodt-Endo, and building what’s next. 

Mallinckrodt-Endo Board of Directors

Paul Efron

Board Chair

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Paul Bisaro

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Leslie Donato

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Katina Dorton

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Scott Hirsch

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Sophia Langlois

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Sigurdur “Siggi” Olafsson

President & Chief Executive Officer

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Marc Yoskowitz

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Jonathan Zinman

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Mallinckrodt-Endo Leadership

Sigurdur “Siggi” Olafsson

President & Chief Executive Officer

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Tracy Basso

Executive Vice President and Chief Human Resources Officer

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Mark Bradley

Executive Vice President and Chief Integration Officer

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Lisa French

Executive Vice President and Chief Commercial Officer

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Henriette Nielsen

Executive Vice President and Chief Transformation Officer

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Paul O’Neill

Executive Vice President and Head of Quality & Operations, Specialty Brands

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Bryan Reasons

Executive Vice President and Interim Chief Financial Officer

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Dr. Peter Richardson

Executive Vice President and Interim Chief Scientific Officer

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Cheryl Stouch

Executive Vice President and Chief Information Officer

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Mark Tyndall

Executive Vice President, Chief Legal Officer, and Corporate Secretary

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Stephen Welch

Executive Vice President and Head of Specialty Generics

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Susan Williamson

Executive Vice President and Chief Compliance Officer

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Recruiting efforts are underway for the Chief Financial Officer and leaders of Business Development & Strategy and Research & Development.

Par Health Planned Leadership Team

Par Health will operate as a segment of the merged company until the generics and sterile injectables business spin-off, which is expected to occur at a later date. Stephen Welch will then become President and CEO of the new standalone company. 

Stephen Welch

President & Chief Executive Officer

Jack Boyle

Chief Financial Officer

Andrew Gonce

Chief Operations Officer

Jason Goodson

Chief Strategy Officer

Kass Harrold

Chief Administrative Officer

Jake Longenecker

Chief Commercial Officer for Active Pharmaceutical Ingredients (APIs) and Controlled Substances

Matthew J. Maletta

Chief Legal Officer

Mick McGuinness

Global Head of Quality and Compliance

Scott Sims

Chief Commercial Officer and Business Operations, Injectable Solutions and Generics

Jeffrey Wiegers

Chief Transformation Officer