
JANA Partners LLC
JANA Partners LLC is a New York based hedge fund managed by Barry Rosenstein. Mr. Rosenstein founded JANA Partners in 2001. The fund primarily invests in the United States public equity markets and uses activist strategies, a market neutral strategy, a long/short equity strategy, and a risk arbitrage strategy.
Before starting JANA Partners, Mr. Rosenstein was the managing partner at Sagaponack Partners, a private equity fund. Prior to Sagaponack Partners, Mr. Rosenstein was the founder and head of Genesis Merchant Group's Investment and Merchant Banking Group. Before Genesis, he formed and was the managing partner of Reatta Partners. Prior to Reatta Partners, Mr. Rosenstein worked at Plaza Securities Corp. and Merrill Lynch.
Mr. Rosenstein is a CPA. He received his MBA from the Wharton School of Business at the University of Pennsylvania in 1984 and his BS from Lehigh University in 1981.
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Treehouse Foods (THS) Appoints Scott Ostfeld to its Board
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ConAgra Brands (CAG) Announces Board Changes
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Form DFAN14A Zendesk, Inc. Filed by: JANA PARTNERS LLC
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Form DFAN14A Zendesk, Inc. Filed by: JANA PARTNERS LLC
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Form PREC14A Zendesk, Inc. Filed by: JANA PARTNERS LLC
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Encompass Health Corporation (EHC) provides updates regarding Board refreshment, separation of home health and hospice business
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Zendesk (ZEN) Board is Out of Touch with Shareholders, Says Jana
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Form DFAN14A Zendesk, Inc. Filed by: JANA PARTNERS LLC
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Form DFAN14A Zendesk, Inc. Filed by: JANA PARTNERS LLC
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Form DFAN14A Zendesk, Inc. Filed by: JANA PARTNERS LLC
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Form 13F-HR JANA PARTNERS LLC For: Dec 31
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Form SC 13D/A TreeHouse Foods, Inc. Filed by: JANA PARTNERS LLC
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Encompass Health (EHC) Intends to Spin Off its Home Health and Hospice Business, Going Against Activists JANA
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JANA Partners Demands Zendesk (ZEN) Promptly Terminate Momentive (MNTV) Acquisition
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Form SC 13D/A TreeHouse Foods, Inc. Filed by: JANA PARTNERS LLC
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JANA Confirms it Entered Nomination Agreement for Potential Treehouse Foods (THS) Board Members
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Form SC 13D/A TreeHouse Foods, Inc. Filed by: JANA PARTNERS LLC
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Exclusive-Activist Jana Partners pushes Encompass Health on potential merger
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Form 13F-HR/A JANA PARTNERS LLC For: Sep 30
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Form 4 BlackSky Technology Inc. For: Dec 21 Filed by: JANA PARTNERS LLC
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Jana Partners discloses stake in Mercury Systems, pushes for potential sale
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Form SC 13D MERCURY SYSTEMS INC Filed by: JANA PARTNERS LLC
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Engine Capital pushes Kohl's to review sale, separate e-commerce business
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Engine Capital Sends Letter to Board of Kohl's (KSS) Regarding Significant Opportunities for "Value Creation"
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Engine Capital Sends Letter to the Board of Directors of Kohl's Regarding Significant Opportunities for Value Creation
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Macy's reliance on stores for e-commerce weighs on mulled split
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JANA Partners Demands Zendesk (ZEN) Board Immediately Terminate Proposed Acquisition of Momentive (MNTV)
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Schulte Roth & Zabel Presents Its 12th Annual Shareholder Activism Conference
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Macy's says it is working with AlixPartners to review its business structure
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Activist investors raise bets on retailers and other consumer cyclicals-filings
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Exclusive-Engine No. 1 partner leaves hedge fund after successful challenge of Exxon
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Valvoline (VVV) Ticks Higher on New JANA Stake
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Form 13F-HR JANA PARTNERS LLC For: Sep 30
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Form 4 BlackSky Technology Inc. For: Oct 08 Filed by: JANA PARTNERS LLC
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Jana Partners urges Macy's to separate e-commerce business
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JANA calls for Macy's (M) to spin-off e-commence unit - Bloomberg
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Engine No. 1 backs GM's strategy around transition to EVs
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Exclusive: Data center operator CyrusOne explores possible sale - sources
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Form 4 BlackSky Technology Inc. For: Sep 09 Filed by: JANA PARTNERS LLC
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BlackSky Announces Completion of Merger with Osprey Technology Acquisition Corp.
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Osprey Technology Acquisition Corp. (SFTW) and BlackSky Announce $30M NGA Contract
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BlackSky Awarded Five Year $30 Million NGA Contract
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BlackSky Announces Equity Investment from Palantir (PLTR)
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BlackSky Secures Investment from Palantir and Enters into Multi-Year Strategic Partnership Following Successful Pilot Project
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Form SC 13D/A TreeHouse Foods, Inc. Filed by: JANA PARTNERS LLC
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JANA Partners said to push Vonage (VG) to sell or break up - Bloomberg
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BlackSky Enhances Executive Leadership Team
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NRO Expands BlackSky Commercial Imagery for Security, Defense and Intelligence
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Form 13F-HR JANA PARTNERS LLC For: Jun 30
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BlackSky and Palantir (PLTR) Collaboration Aids Government Agencies in Predicting Events