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JANA Partners

specializing in event-driven investments... Read more
OverviewCompetitorsAcquisitionsFundingInvestmentsNews & Insights

JANA Partners

specializing in event-driven investments... Read more
JANA Partners Managing Partner: Barry Rosenstein

Managing Partner

Barry Rosenstein

CEO Approval Rating

65/100

2001

Investment Company

Banking, Financial Services and Insurance
Investment Banking and SecuritiesDiversified Financial Services
64116199 NAICS listing

Est. Annual Revenue
$23.3M
Est. Employees
334
Funding
$3.7B
Acquisitions
1
Investments
7

News

investment
Feb 16, 2026
https://www.wsj.com/business/deals/activist-jana-builds-stake-in-payments-business-fiserv-ed88b111?mod=pls_whats_news_us_business_f
JANA Partners, LLC has invested $0 in Fiserv, Inc.

JANA Partners Competitors

1Third Point
2York Capital Management
3Elliott Capital Partners
4Renovatio Technologies
5Pershing Square
6Icahn Enterprises
7Ingenium Technologies
8PSH
9Westind Technologies
10Ek3 Enterprises
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