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Disclosery

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

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

New England Research & Management, Inc. held 16,050 MAS 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 16,050 shares
    Change vs previous 13F -600 shares

    0.51% of the 13F portfolio, value $1,305,989.

    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 16,650 shares
    Change vs previous 13F +16,650 shares

    0.42% of the 13F portfolio, value $1,005,161.

    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 ended2025-09-30
    13F 0 shares
    Change vs previous 13F -15,850 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  4. period ended2025-06-30
    13F 15,850 shares
    Change vs previous 13F -2,325 shares

    0.48% of the 13F portfolio, value $1,020,000.

    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).

  5. period ended2025-03-31
    13F 18,175 shares
    Change vs previous 13F -3,825 shares

    0.64% of the 13F portfolio, value $1,264,000.

    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).

  6. period ended2024-12-31
    13F 22,000 shares
    Change vs previous 13F -3,275 shares

    0.81% of the 13F portfolio, value $1,597,000.

    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).

  7. period ended2024-09-30
    13F 25,275 shares
    Change vs previous 13F not available

    1% of the 13F portfolio, value $2,122,000.

    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).