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Nierenberg Investment Management Company, LLC: EQT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Nierenberg Investment Management Company, LLC on EQT, newest first. How the timeline and the estimate are built.

Nierenberg Investment Management Company, LLC held 533,363 EQT shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 533,363 shares
    Change vs previous 13F 0 shares

    14.08% of the 13F portfolio, value $28,358,911.

    13F-HR 0001941040-26-000552 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 533,363 shares
    Change vs previous 13F 0 shares

    16.9% of the 13F portfolio, value $33,943,221.

    13F-HR 0001941040-26-000327 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 533,363 shares
    Change vs previous 13F -3,330 shares

    14.42% of the 13F portfolio, value $28,588,257.

    13F-HR 0001941040-26-000138 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 536,693 shares
    Change vs previous 13F 0 shares

    16.15% of the 13F portfolio, value $29,212,200.

    13F-HR 0001941040-25-000623 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 536,693 shares
    Change vs previous 13F 0 shares

    18.27% of the 13F portfolio, value $31,299,936.

    13F-HR 0001941040-25-000474 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 536,693 shares
    Change vs previous 13F 0 shares

    16.75% of the 13F portfolio, value $28,675,507.

    13F-HR 0001941040-25-000290 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 536,693 shares
    Change vs previous 13F 0 shares

    14.48% of the 13F portfolio, value $24,746,914.

    13F-HR 0001941040-25-000148 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 536,693 shares
    Change vs previous 13F not available

    11.78% of the 13F portfolio, value $19,664,432.

    13F-HR 0001941040-24-000503 filed by Nierenberg Investment Management Company, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).