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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

Marc Yoskowitz

Board Chair

Paul Bisaro

Leslie Donato

Katina Dorton

Paul Efron

Scott Hirsch

Sophia Langlois

Sigurdur “Siggi” Olafsson

President and Chief Executive Officer

Jonathan Zinman

Mallinckrodt-Endo Leadership

Sigurdur “Siggi” Olafsson

President and Chief Executive Officer

Tracy Basso

Executive Vice President and Chief Human Resources Officer

Mark Bradley

Executive Vice President and Chief Integration Officer

Lisa French

Executive Vice President and Chief Commercial Officer

Dr. Marek Honczarenko

Executive Vice President and Chief Scientific Officer

Henriette Nielsen

Executive Vice President and Chief Transformation Officer

Paul O’Neill

Executive Vice President and Chief Operations Officer

Christiana Stamoulis

President and Chief Financial Officer

Cheryl Stouch

Executive Vice President and Chief Information Officer

Mark Tyndall

Executive Vice President, Chief Legal Officer, and Corporate Secretary

Stephen Welch

Executive Vice President and Head of Specialty Generics

Susan Williamson

Executive Vice President and Chief Compliance Officer

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

Expected President & Chief Executive Officer

Jack Boyle

Expected Chief Financial Officer

Andrew Gonce

Expected Chief Operations Officer

Kass Harrold

Expected Chief Administrative Officer

Jake Longenecker

Expected Chief Commercial Officer, Generics

Matthew J. Maletta

Expected Chief Legal Officer

Mick McGuinness

Expected Chief Quality Officer

Teresa Sanzottera

Expected Chief Information Officer

Scott Sims

Expected Chief Commercial Officer, Sterile Injectables

Jeffrey Wiegers

Expected Chief Transformation Officer