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Welch & Forbes LLC: AOS position timeline

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

Welch & Forbes LLC held 532,209 AOS 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 532,209 shares
    Change vs previous 13F -47,571 shares

    0.41% of the 13F portfolio, value $33,380,144.

    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 579,780 shares
    Change vs previous 13F -6,037 shares

    0.49% of the 13F portfolio, value $38,230,813.

    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 585,817 shares
    Change vs previous 13F -9,492 shares

    0.47% of the 13F portfolio, value $39,179,460.

    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 595,309 shares
    Change vs previous 13F -935 shares

    0.53% of the 13F portfolio, value $43,701,756.

    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 596,244 shares
    Change vs previous 13F +3,263 shares

    0.49% of the 13F portfolio, value $39,095,856.

    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 592,981 shares
    Change vs previous 13F +24,368 shares

    0.51% of the 13F portfolio, value $38,757,247.

    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 568,613 shares
    Change vs previous 13F +2,210 shares

    0.5% of the 13F portfolio, value $38,785,216.

    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 566,403 shares
    Change vs previous 13F not available

    0.65% of the 13F portfolio, value $50,880,083.

    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).