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Disclosery

GAMMA Investing LLC: AMSC position timeline

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

GAMMA Investing LLC held 1,422 AMSC shares at 2026-09-30 per its 13F-HR filed 2026-10-08.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 1,422 shares
    Change vs previous 13F +245 shares

    <0.01% of the 13F portfolio, value $41,394.

    13F-HR 0002010235-26-000007 filed by GAMMA Investing LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 1,177 shares
    Change vs previous 13F +49 shares

    <0.01% of the 13F portfolio, value $48,857.

    13F-HR 0002010235-26-000005 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 1,128 shares
    Change vs previous 13F +47 shares

    <0.01% of the 13F portfolio, value $38,183.

    13F-HR 0002010235-26-000003 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 1,081 shares
    Change vs previous 13F +99 shares

    <0.01% of the 13F portfolio, value $31,111.

    13F-HR 0002010235-26-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 982 shares
    Change vs previous 13F +28 shares

    <0.01% of the 13F portfolio, value $58,321.

    13F-HR 0002010235-25-000009 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 954 shares
    Change vs previous 13F +488 shares

    <0.01% of the 13F portfolio, value $35,002.

    13F-HR 0002010235-25-000007 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F/A 466 shares
    Change vs previous 13F +201 shares

    <0.01% of the 13F portfolio, value $8,453.

    13F-HR/A 0002010235-25-000006 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 265 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $6,527.

    13F-HR 0002010235-25-000001 filed by GAMMA Investing LLC
    Filed (acceptance time not in the bulk data set), ingested

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