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Disclosery

Boston Trust Walden Corp: AOSL position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Boston Trust Walden Corp on AOSL, newest first. How the timeline and the estimate are built.

Boston Trust Walden Corp held 0 AOSL shares at 2026-03-31 per its 13F-HR filed 2026-05-11.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -689,143 shares

    13F-HR 0001386060-26-000017 filed by Boston Partners
    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.

  2. period ended2025-12-31
    13F 689,143 shares
    Change vs previous 13F -97,487 shares

    0.01% of the 13F portfolio, value $13,654,506.

    13F-HR 0001386060-26-000014 filed by Boston Partners
    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 786,630 shares
    Change vs previous 13F -322,747 shares

    0.02% of the 13F portfolio, value $21,994,137.

    13F-HR 0001386060-25-000020 filed by Boston Partners
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F/A 1,109,377 shares
    Change vs previous 13F +514,240 shares

    0.03% of the 13F portfolio, value $28,467,430.

    13F-HR/A 0001085146-25-004915 filed by Boston Partners
    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 595,137 shares
    Change vs previous 13F +574,172 shares

    0.02% of the 13F portfolio, value $14,781,516.

    13F-HR 0001085146-25-002987 filed by Boston Partners
    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 20,965 shares
    Change vs previous 13F -1,220 shares

    <0.01% of the 13F portfolio, value $164,890.

    13F-HR 0001085146-25-000961 filed by Boston Partners
    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 22,185 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $155,500.

    13F-HR 0001085146-24-005518 filed by Boston Partners
    Filed (acceptance time not in the bulk data set), ingested

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