JANA Partners Management, LP

An investor that pushes for changes at companies, often a sale of the company.

Right now JANA has no stake of 5% or more in any closed-end fund.

Newest move: June 29, 2026, at ALKT.

What they usually do

An investor that pushes for changes at companies, often a sale of the company. It rarely files on closed-end funds.

Funds they are in right now

None right now.

Other companies (3)

Recent moves

  1. June 29, 2026

    ALKT - Alkami Technology: JANA raised its stake to 6.3% (from 5%). It has said it may push for changes.

    Original document →
  2. May 12, 2026

    ALKT - Alkami Technology: JANA sold down below 5% and stopped reporting.

    Original document →
  3. April 1, 2026

    ALKT - Alkami Technology: JANA now owns 5.1%. It has said it may push for changes.

    Original document →
  4. March 30, 2026

    RPD - Rapid7: JANA raised its stake to 10.3% (from 10.1%). It has said it may push for changes.

    Original document →
  5. March 4, 2026

    MRCY - Mercury Systems: JANA cut its stake to 6.9% (from 8.3%). It has said it may push for changes.

    Original document →
  6. Feb 11, 2026

    TreeHouse Foods: JANA sold down below 5% and stopped reporting.

    Original document →
  7. Nov 13, 2025

    TreeHouse Foods: JANA raised its stake to 11.5% (from 10.9%). It has said it may push for changes.

    Original document →
  8. Nov 10, 2025

    MRCY - Mercury Systems: JANA cut its stake to 8.3% (from 10%). It has said it may push for changes.

    Original document →
Show all 29 moves
  1. Aug 15, 2025

    MRCY - Mercury Systems: JANA cut its stake to 10% (from 11%). It has said it may push for changes.

    Original document →
  2. Aug 13, 2025

    RPD - Rapid7: JANA raised its stake to 10.1% (from 8%). It has said it may push for changes.

    Original document →
  3. July 1, 2025

    LW - Lamb Weston Holdings: JANA sold down below 5% and stopped reporting.

    Original document →
  4. June 10, 2025

    LW - Lamb Weston Holdings: JANA filed an updated notice; it still owns 5.4%. It has said it may push for changes.

    Original document →
  5. June 5, 2025

    LW - Lamb Weston Holdings: JANA cut its stake to 5.4% (from 5.6%). It has said it may push for changes.

    Original document →
  6. May 12, 2025

    TreeHouse Foods: JANA now owns 10.9%. It has said it may push for changes.

    Original document →
  7. April 21, 2025

    RPD - Rapid7: JANA raised its stake to 8% (from 7.7%). It has said it may push for changes.

    Original document →
  8. April 10, 2025

    RPD - Rapid7: JANA raised its stake to 7.7% (from 6%). It has said it may push for changes.

    Original document →
  9. April 1, 2025

    LW - Lamb Weston Holdings: JANA filed an updated notice; it still owns 5.6%. It has said it may push for changes.

    Original document →
  10. March 24, 2025

    RPD - Rapid7: JANA raised its stake to 6% (from 5.8%). It has said it may push for changes.

    Original document →
  11. March 13, 2025

    RPD - Rapid7: JANA filed an updated notice; it still owns 5.8%. It has said it may push for changes.

    Original document →
  12. March 7, 2025

    LW - Lamb Weston Holdings: JANA raised its stake to 5.6% (from 5%). It has said it may push for changes.

    Original document →
  13. Jan 28, 2025

    LW - Lamb Weston Holdings: JANA filed an updated notice; it still owns 5%. It has said it may push for changes.

    Original document →
  14. Dec 27, 2024

    LW - Lamb Weston Holdings: JANA filed an updated notice; it still owns 5%. It has said it may push for changes.

    Original document →
  15. Dec 20, 2024

    LW - Lamb Weston Holdings: JANA filed an updated notice; it still owns 5%. It has said it may push for changes.

    Original document →
  16. Dec 18, 2024

    RPD - Rapid7: JANA filed an updated notice; it still owns 5.8%. It has said it may push for changes.

    Original document →
  17. Dec 18, 2024

    LW - Lamb Weston Holdings: JANA filed an updated notice; it still owns 5%. It has said it may push for changes.

    Original document →
  18. Oct 18, 2024

    LW - Lamb Weston Holdings: JANA now owns 5%. It has said it may push for changes.

    Original document →
  19. Sept 27, 2024

    RPD - Rapid7: JANA now owns 5.8%. It has said it may push for changes.

    Original document →
  20. Feb 13, 2024

    MRCY - Mercury Systems: JANA now owns 11%. It has said it may push for changes.

    Original document →
  21. Jan 11, 2024

    FRPT - Freshpet: JANA sold down below 5% and stopped reporting.

    Original document →
Details

See this investor's page at the SEC →

Website →

Every notice by JANA
DateFundStakeType of notice
June 29, 2026 ALKT - Alkami Technology 6.3% May push for changes
May 12, 2026 ALKT - Alkami Technology 5% Sold down below 5%
April 1, 2026 ALKT - Alkami Technology 5.1% May push for changes
March 30, 2026 RPD - Rapid7 10.3% Updated notice
March 4, 2026 MRCY - Mercury Systems 6.9% Updated notice
Feb 11, 2026 TreeHouse Foods 0% Sold down below 5%
Nov 13, 2025 TreeHouse Foods 11.5% Updated notice
Nov 10, 2025 MRCY - Mercury Systems 8.3% Updated notice
Aug 15, 2025 MRCY - Mercury Systems 10% Updated notice
Aug 13, 2025 RPD - Rapid7 10.1% Updated notice
July 1, 2025 LW - Lamb Weston Holdings 4.9% Sold down below 5%
June 10, 2025 LW - Lamb Weston Holdings 5.4% Updated notice
June 5, 2025 LW - Lamb Weston Holdings 5.4% Updated notice
May 12, 2025 TreeHouse Foods 10.9% Updated notice
April 21, 2025 RPD - Rapid7 8% Updated notice
April 10, 2025 RPD - Rapid7 7.7% Updated notice
April 1, 2025 LW - Lamb Weston Holdings 5.6% Updated notice
March 24, 2025 RPD - Rapid7 6% Updated notice
March 13, 2025 RPD - Rapid7 5.8% Updated notice
March 7, 2025 LW - Lamb Weston Holdings 5.6% Updated notice
Jan 28, 2025 LW - Lamb Weston Holdings 5% Updated notice
Dec 27, 2024 LW - Lamb Weston Holdings 5% Updated notice
Dec 20, 2024 LW - Lamb Weston Holdings 5% Updated notice
Dec 18, 2024 RPD - Rapid7 5.8% Updated notice
Dec 18, 2024 LW - Lamb Weston Holdings 5% Updated notice
Oct 18, 2024 LW - Lamb Weston Holdings 5% May push for changes
Sept 27, 2024 RPD - Rapid7 5.8% May push for changes
Feb 13, 2024 MRCY - Mercury Systems 11% Updated notice
Jan 11, 2024 FRPT - Freshpet 4.9% Sold down below 5%

Download the list of funds (CSV)

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