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GAMMA Investing LLC: ABM position timeline

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

GAMMA Investing LLC held 1,443 ABM 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 1,443 shares
    Change vs previous 13F +254 shares

    <0.01% of the 13F portfolio, value $69,408.

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

  2. period ended2026-06-30
    13F 1,189 shares
    Change vs previous 13F +89 shares

    <0.01% of the 13F portfolio, value $52,601.

    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 1,100 shares
    Change vs previous 13F +116 shares

    <0.01% of the 13F portfolio, value $42,372.

    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 984 shares
    Change vs previous 13F -469 shares

    <0.01% of the 13F portfolio, value $41,623.

    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 1,453 shares
    Change vs previous 13F -97 shares

    <0.01% of the 13F portfolio, value $67,012.

    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 1,550 shares
    Change vs previous 13F +69 shares

    <0.01% of the 13F portfolio, value $73,176.

    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 1,481 shares
    Change vs previous 13F -196 shares

    0.01% of the 13F portfolio, value $70,140.

    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 1,677 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $85,829.

    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).