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Disclosery

FMR LLC: AMSC position timeline

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

FMR LLC held 10,354 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 10,354 shares
    Change vs previous 13F -136,939 shares

    <0.01% of the 13F portfolio, value $429,788.

    13F-HR 0000315066-26-002260 filed by FMR 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 147,293 shares
    Change vs previous 13F +22,887 shares

    <0.01% of the 13F portfolio, value $4,985,856.

    13F-HR 0000315066-26-001390 filed by FMR 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 124,406 shares
    Change vs previous 13F +23,564 shares

    <0.01% of the 13F portfolio, value $3,580,391.

    13F-HR 0000315066-26-000611 filed by FMR 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 100,842 shares
    Change vs previous 13F +93,396 shares

    <0.01% of the 13F portfolio, value $5,989,033.

    13F-HR 0000315066-25-002929 filed by FMR 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 7,446 shares
    Change vs previous 13F +4,653 shares

    <0.01% of the 13F portfolio, value $273,192.

    13F-HR 0000315066-25-002231 filed by FMR 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 2,793 shares
    Change vs previous 13F +577 shares

    <0.01% of the 13F portfolio, value $50,662.

    13F-HR 0000315066-25-001380 filed by FMR 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 2,216 shares
    Change vs previous 13F -12,474 shares

    <0.01% of the 13F portfolio, value $54,579.

    13F-HR 0000315066-25-000939 filed by FMR 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 14,690 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $346,687.

    13F-HR 0001385495-24-000014 filed by FMR LLC
    Filed (acceptance time not in the bulk data set), ingested

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