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Disclosery

Massachusetts Wealth Management: GLW position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Massachusetts Wealth Management on GLW, newest first. How the timeline and the estimate are built.

Massachusetts Wealth Management held 23,465 GLW shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 23,465 shares
    Change vs previous 13F 0 shares

    2.28% of the 13F portfolio, value $5,993,665.

    13F-HR 0001966011-26-000004 filed by Massachusetts Wealth Management
    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 23,465 shares
    Change vs previous 13F +200 shares

    1.38% of the 13F portfolio, value $3,190,536.

    13F-HR 0001966011-26-000002 filed by Massachusetts Wealth Management
    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 23,265 shares
    Change vs previous 13F -135 shares

    0.95% of the 13F portfolio, value $2,037,083.

    13F-HR 0001966011-26-000001 filed by Massachusetts Wealth Management
    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 23,400 shares
    Change vs previous 13F +450 shares

    0.95% of the 13F portfolio, value $1,919,502.

    13F-HR 0001966011-25-000002 filed by Massachusetts Wealth Management
    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 22,950 shares
    Change vs previous 13F +250 shares

    0.68% of the 13F portfolio, value $1,206,940.

    13F-HR 0001085146-25-004083 filed by Massachusetts Wealth Management
    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 22,700 shares
    Change vs previous 13F -400 shares

    0.71% of the 13F portfolio, value $1,039,206.

    13F-HR 0001085146-25-002134 filed by Massachusetts Wealth Management
    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 23,100 shares
    Change vs previous 13F -100 shares

    0.68% of the 13F portfolio, value $1,097,712.

    13F-HR 0001085146-25-000507 filed by Massachusetts Wealth Management
    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 23,200 shares
    Change vs previous 13F not available

    0.66% of the 13F portfolio, value $1,047,480.

    13F-HR 0001085146-24-005083 filed by Massachusetts Wealth Management
    Filed (acceptance time not in the bulk data set), ingested

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