Barry S. Rosenstein is an American hedge fund manager and billionaire. He is the founder and managing partner of JANA Partners LLC, an activist hedge fund firm. He made $300 million over the merger of Whole Foods with Amazon in April–July 2017.
- Occupation
- financier, businessperson, hedge fund manager
- Citizenship
- United States
- Born
- January 1959
- Website
- https://www.janapartners.com/team/Barry%20Rosenstein
