Skip to content
Disclosery

BlackRock, Inc.: AMSC position timeline

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

BlackRock, Inc. held 4,095,371 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,095,371 shares
    Change vs previous 13F +112,721 shares

    <0.01% of the 13F portfolio, value $169,998,850.

    13F-HR 0002012383-26-003238 filed by BlackRock, 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 3,982,650 shares
    Change vs previous 13F +232,247 shares

    <0.01% of the 13F portfolio, value $134,812,704.

    13F-HR 0002012383-26-001841 filed by BlackRock, 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 3,750,403 shares
    Change vs previous 13F +121,107 shares

    <0.01% of the 13F portfolio, value $107,936,611.

    13F-HR 0002012383-26-000920 filed by BlackRock, 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 3,629,296 shares
    Change vs previous 13F +209,257 shares

    <0.01% of the 13F portfolio, value $215,543,880.

    13F-HR 0002012383-25-002949 filed by BlackRock, 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 3,420,039 shares
    Change vs previous 13F +161,616 shares

    <0.01% of the 13F portfolio, value $125,481,230.

    13F-HR 0001060021-25-000120 filed by BlackRock, 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 3,258,423 shares
    Change vs previous 13F -169,470 shares

    <0.01% of the 13F portfolio, value $59,107,794.

    13F-HR 0001576419-25-000869 filed by BlackRock, 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 3,427,893 shares
    Change vs previous 13F +707,110 shares

    <0.01% of the 13F portfolio, value $84,429,004.

    13F-HR 0001060021-25-000002 filed by BlackRock, 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 2,720,783 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $64,210,479.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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