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Odysseas Kostas

Odysseas Kostas

Senior Managing Director at Sarissa Capital Management LP

Greenwich, CT , United States

About

Odysseas Kostas is a Partner and Senior Managing Director at Sarissa Capital Management LP, based in Greenwich, CT. At Sarissa, he plays a leading role in shaping investment strategies and engaging with portfolio companies to enhance shareholder value, with a primary focus on the biotechnology and pharmaceutical sectors. His responsibilities include identifying underperforming companies, advocating for operational improvements, and often taking active roles such as board memberships to drive corporate governance and strategy.

Dr. Kostas has significant experience in both capital markets and clinical practice. Before joining Sarissa in 2016, he served as a Director at Evercore ISI, where he covered the biotechnology and pharmaceutical industries, providing specialized investment analysis and sector insights. Additionally, he practiced internal medicine at Yale New Haven Health System and acted as a consultant to various biotechnology companies, broadening his expertise in healthcare investments.

He currently serves on the boards of Amarin Corporation and Armata Pharmaceuticals and has also served as Chairman of Innoviva, Inc. Dr. Kostas earned an M.D. from the University of Texas Southwestern Medical School and a B.S. from Massachusetts Institute of Technology (MIT), supporting a strong foundation in medical science and quantitative analysis. He is recognized for his impactful contributions to value-driven activism in the healthcare, biotech, and pharmaceutical investment sectors.

Career History

OrganizationRoleDate RangeDetails
Sarissa Capital Management LPSenior Managing DirectorJan 2016 to Present
Amarin CorporationMember Board of DirectorsFeb 2023 to Present
Armata Pharmaceuticals, Inc.Member Board Of DirectorsFeb 2020 to Present
InnovivaMember Board Of DirectorsDec 2017 to Present
Enzon PharmaceuticalsDirectorSep 2013 to Aug 2020
ISI GroupAssociate and Director, Healthcare Equity ResearchNov 2011 to Dec 2015
Sanford C. BernsteinConsultant - Associate AnalystMay 2011 to Aug 2011
ADVENTRX PharmaceuticalsDirector, Board of DirectorsFeb 2010 to May 2011
Greenwich HospitalHospitalistMay 2008 to May 2011

Education

The University of Texas Southwestern Medical School

1995 1999

1991 1995

Skills & Expertise

Marketing
Leadership
Project Management
Hedge Funds
Equities
Securities
Sarbanes Oxley Act
Financial Services

Others at Sarissa Capital Management LP (4)

NameRoleLocation
Dave Finley
Dave Finley
Managing PartnerBoston, MA , United States
Simos Simeonidis
Simos Simeonidis
Senior AnalystNew York, NY , United States
M
Mark DiPaolo
Senior PartnerGreenwich, CT , United States
Patrice Bonfiglio
Patrice Bonfiglio
PresidentStamford, CT , United States