Mark Sullivan – Biography
Last update: April 28, 2026Executive profile
Mark was General Counsel, Chief Compliance Officer and Corporate Secretary at Sesen Bio, and General Counsel, Chief Compliance Officer and Secretary at MModal. Mark Sullivan joined Definium Therapeutics in 2023.
Mark Sullivan is currentlyChief Legal Officer and Corporate Secretary at Definium Therapeutics - View - Definium Therapeutics org chart
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Education
Mark Sullivan has a Bachelor of Arts from University of Pennsylvania and a Juris Doctor from Rutgers University - School of Law.
They have also studied at University of Pennsylvania :
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They have also studied at Rutgers University - School of Law :
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Company Colleagues
- At Definium Therapeutics, Mark Sullivan has 19 colleagues including Robert Barrow (CEO), David Gryska (Director)…
Homonyms
- Mark Sullivan - Managing Director, National Construction Operations - Avison Young Boston
- Mark Sullivan - Vice President, Sales Representative - CBRE Canada
- Mark Sullivan - Senior Vice President, Kansas City - Cumulus Media
- Mark Sullivan - Director - DPV Health
- Mark Sullivan - Director - Evolv Technology
- Mark Sullivan - Chief Operating Officer - IDC
- Mark Sullivan - Vice President, Claims - International General Insurance
- Mark Sullivan - Partner, Human Capital - Linden
- Mark Sullivan - Chief Executive Officer - Plasman Group
- Mark Sullivan - Director - Saul Centers
- Mark Sullivan - Vice Chairman, Director, Western Region Lead - Savills US
- Mark Sullivan - Head of Hedge Fund Group - Wellington Management
- Mark Sullivan - Chief Technology Officer - Wilmington Group
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Industry Colleagues
- In the Biotechnology industry, Mark Sullivan has 35,757 colleagues in 2,406 companies located in 42 countries. 16,856 executive movements have been recorded in the last 12 months. Learn more about Biotechnology.
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