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Welch & Forbes LLC: MAS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Welch & Forbes LLC on MAS, newest first. How the timeline and the estimate are built.

Welch & Forbes LLC held 22,051 MAS shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 22,051 shares
    Change vs previous 13F -1,098 shares

    0.02% of the 13F portfolio, value $1,794,290.

    13F-HR 0000105495-26-000003 filed by Welch & Forbes 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 23,149 shares
    Change vs previous 13F -1,000 shares

    0.02% of the 13F portfolio, value $1,397,506.

    13F-HR 0000105495-26-000002 filed by Welch & Forbes 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 24,149 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $1,532,496.

    13F-HR 0000105495-26-000001 filed by Welch & Forbes 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 24,149 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $1,699,849.

    13F-HR 0000105495-25-000002 filed by Welch & Forbes 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 24,149 shares
    Change vs previous 13F -450 shares

    0.02% of the 13F portfolio, value $1,554,230.

    13F-HR 0001085146-25-004501 filed by Welch & Forbes 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 24,599 shares
    Change vs previous 13F -1,149 shares

    0.02% of the 13F portfolio, value $1,710,614.

    13F-HR 0001085146-25-002565 filed by Welch & Forbes 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 25,748 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $1,868,533.

    13F-HR 0001085146-25-000876 filed by Welch & Forbes 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 25,748 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $2,161,287.

    13F-HR 0001085146-24-005341 filed by Welch & Forbes LLC
    Filed (acceptance time not in the bulk data set), ingested

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