JANA PARTNERS MANAGEMENT, LP

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Jana Partners Management is based out of New York. Jana Partners Management is a hedge fund with 7 clients and discretionary assets under management (AUM) of $2,386,320,222 (Form ADV from 2025-09-15). Their last reported 13F filing for Q3 2025 included $2,065,490,788 in managed 13F securities and a top 10 holdings concentration of 96.9%. Jana Partners Management's largest holding is Mercury Systems Inc with shares held of 5,959,481. Whalewisdom has at least 103 13F filings, 264 13D filings, 198 13G filings, and 82 Form 4 filings
Business Description
The advisory business functions as an investment adviser, offering comprehensive Investment Advisory Services. These services include sourcing, researching, conducting due diligence on, structuring, and monitoring investments for Clients, as well as providing or arranging administrative services. All advisory fees are derived from these services. Client assets are managed on a discretionary basis, with the firm holding the authority to formulate investment strategies, including deciding which securities to buy and sell, when, and in what amounts, in accordance with Client objectives. The firm does not limit the types of Investment Advisory Services offered and has no material limitations on the types of securities it may invest in or advise on, allowing for investment in any security or market sector. It also has the flexibility to utilize special purpose subsidiaries, investment vehicles, swaps, derivatives, or structured products. While the firm does not recommend any particular type of security, its broad discretion in investment choices is subject to the provisions of relevant Offering Documents. Neither the firm nor its management personnel are registered as broker-dealers.
Investment Strategy
The investment adviser formulates investment strategies for clients on a discretionary basis, determining which securities to buy and sell, when, and in what amounts, aligned with each client's stated investment objectives and policies. Their process involves sourcing, researching, and conducting due diligence on potential investments, structuring them, and monitoring them. This includes fundamental market research, drawing on diverse sources such as company reports, third-party research, press releases, SEC filings, financial and trade publications, government and trade association data, scholarly journals, market data, online quotation services, and databases, as well as meetings with management, suppliers, competitors, and industry consultants. A key investment strategy employed is "Long-Only, Not Market-Neutral," where clients' largest positions are typically long positions. The success of these investments depends on the adviser's ability to identify and purchase undervalued securities and to effect value-creating change. The strategy involves investments in equity securities, corporate debt, and other instruments, carrying inherent risks. Identifying and successfully acquiring these long-only investment opportunities is a challenging task, and there are no assurances of success.
Owners
  • CANNAE HOLDINGS, LLC - SPECIAL LIMITED PARTNER
  • ROSENSTEIN, BARRY, STUART - FOUNDER & EXECUTIVE CHAIRMAN | LIMITED PARTNER
  • OSTFELD, SCOTT, DAVID - MANAGING PARTNER | LIMITED PARTNER
  • GALLIGAN, KEVIN, GARVEY - PARTNER | LIMITED PARTNER
  • YOUNG, JAY, HYUN - CHIEF OPERATING OFFICER
  • FANJIANG, JENNIFER - PARTNER, CHIEF LEGAL OFFICER & CHIEF COMPLIANCE OFFICER | LIMITED PARTNER
  • HUNTER, RYAN, MATTHEW - CHIEF FINANCIAL OFFICER
  • Click on the Ownership/Private Fund Data tab for more details.
Known Email Addresses
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