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MARTINGALE ASSET MANAGEMENT L P: NRG position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MARTINGALE ASSET MANAGEMENT L P on NRG, newest first. How the timeline and the estimate are built.

MARTINGALE ASSET MANAGEMENT L P held 4,916 NRG shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,916 shares
    Change vs previous 13F -49,647 shares

    0.02% of the 13F portfolio, value $718,031.

    13F-HR 0000936944-26-000006 filed by MARTINGALE ASSET MANAGEMENT L P
    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 54,563 shares
    Change vs previous 13F -42,421 shares

    0.2% of the 13F portfolio, value $7,973,837.

    13F-HR 0000936944-26-000003 filed by MARTINGALE ASSET MANAGEMENT L P
    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 96,984 shares
    Change vs previous 13F +32,714 shares

    0.39% of the 13F portfolio, value $15,443,733.

    13F-HR 0000936944-26-000002 filed by MARTINGALE ASSET MANAGEMENT L P
    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 64,270 shares
    Change vs previous 13F -7,708 shares

    0.26% of the 13F portfolio, value $10,408,527.

    13F-HR 0000936944-25-000010 filed by MARTINGALE ASSET MANAGEMENT L P
    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 71,978 shares
    Change vs previous 13F -346 shares

    0.28% of the 13F portfolio, value $11,558,229.

    13F-HR 0000936944-25-000008 filed by MARTINGALE ASSET MANAGEMENT L P
    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 72,324 shares
    Change vs previous 13F +30,405 shares

    0.18% of the 13F portfolio, value $6,904,050.

    13F-HR 0000936944-25-000005 filed by MARTINGALE ASSET MANAGEMENT L P
    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 41,919 shares
    Change vs previous 13F +31,750 shares

    0.09% of the 13F portfolio, value $3,781,933.

    13F-HR 0000936944-25-000003 filed by MARTINGALE ASSET MANAGEMENT L P
    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 10,169 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $926,396.

    13F-HR 0000936944-24-000007 filed by MARTINGALE ASSET MANAGEMENT L P
    Filed (acceptance time not in the bulk data set), ingested

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