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Disclosery

New England Research & Management, Inc.: PWR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of New England Research & Management, Inc. on PWR, newest first. How the timeline and the estimate are built.

New England Research & Management, Inc. held 14,367 PWR shares at 2026-06-30 per its 13F-HR filed 2026-07-09.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 14,367 shares
    Change vs previous 13F +2,174 shares

    4.03% of the 13F portfolio, value $10,344,455.

    13F-HR 0001951757-26-000938 filed by New England Research & Management, Inc.
    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 12,193 shares
    Change vs previous 13F -325 shares

    2.83% of the 13F portfolio, value $6,694,201.

    13F-HR 0001951757-26-000789 filed by New England Research & Management, Inc.
    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 12,518 shares
    Change vs previous 13F -393 shares

    2.31% of the 13F portfolio, value $5,283,347.

    13F-HR 0001951757-26-000024 filed by New England Research & Management, Inc.
    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 12,911 shares
    Change vs previous 13F +430 shares

    2.46% of the 13F portfolio, value $5,350,577.

    13F-HR 0001596077-25-000007 filed by New England Research & Management, Inc.
    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 12,481 shares
    Change vs previous 13F -90 shares

    2.24% of the 13F portfolio, value $4,719,000.

    13F-HR 0001596077-25-000004 filed by New England Research & Management, Inc.
    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 12,571 shares
    Change vs previous 13F +1,750 shares

    1.62% of the 13F portfolio, value $3,195,000.

    13F-HR 0001596077-25-000003 filed by New England Research & Management, Inc.
    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 10,821 shares
    Change vs previous 13F -3,412 shares

    1.74% of the 13F portfolio, value $3,420,000.

    13F-HR 0001596077-25-000001 filed by New England Research & Management, Inc.
    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 14,233 shares
    Change vs previous 13F not available

    1.99% of the 13F portfolio, value $4,244,000.

    13F-HR 0001596077-24-000007 filed by New England Research & Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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