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Cambridge Investment Research Advisors, Inc.: AMSC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Cambridge Investment Research Advisors, Inc. on AMSC, newest first. How the timeline and the estimate are built.

Cambridge Investment Research Advisors, Inc. held 60,564 AMSC shares at 2026-06-30 per its 13F-HR/A filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 60,564 shares
    Change vs previous 13F +12,013 shares

    0.01% of the 13F portfolio, value $2,514,000.

    13F-HR/A 0001419186-26-000006 filed by Cambridge Investment Research Advisors, 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 48,551 shares
    Change vs previous 13F +8,951 shares

    <0.01% of the 13F portfolio, value $1,643,000.

    13F-HR 0001419186-26-000003 filed by Cambridge Investment Research Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 39,600 shares
    Change vs previous 13F +4,523 shares

    <0.01% of the 13F portfolio, value $1,140,000.

    13F-HR 0001419186-26-000001 filed by Cambridge Investment Research Advisors, Inc.
    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 35,077 shares
    Change vs previous 13F +129 shares

    0.01% of the 13F portfolio, value $2,083,000.

    13F-HR 0001419186-25-000008 filed by Cambridge Investment Research Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 34,948 shares
    Change vs previous 13F -2,775 shares

    <0.01% of the 13F portfolio, value $1,282,000.

    13F-HR 0001419186-25-000006 filed by Cambridge Investment Research Advisors, Inc.
    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 37,723 shares
    Change vs previous 13F +4,259 shares

    <0.01% of the 13F portfolio, value $684,000.

    13F-HR 0001419186-25-000004 filed by Cambridge Investment Research Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 33,464 shares
    Change vs previous 13F +2,511 shares

    <0.01% of the 13F portfolio, value $824,000.

    13F-HR 0001419186-25-000003 filed by Cambridge Investment Research Advisors, Inc.
    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 30,953 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $730,000.

    13F-HR 0001419186-24-000006 filed by Cambridge Investment Research Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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