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Disclosery

GAMMA Investing LLC: AMTM position timeline

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

GAMMA Investing LLC held 4,569 AMTM 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 4,569 shares
    Change vs previous 13F -389 shares

    <0.01% of the 13F portfolio, value $82,790.

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

  2. period ended2026-06-30
    13F 4,958 shares
    Change vs previous 13F -701 shares

    <0.01% of the 13F portfolio, value $102,482.

    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 5,659 shares
    Change vs previous 13F +354 shares

    0.01% of the 13F portfolio, value $147,587.

    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 5,305 shares
    Change vs previous 13F +284 shares

    0.01% of the 13F portfolio, value $153,845.

    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 5,021 shares
    Change vs previous 13F +578 shares

    0.01% of the 13F portfolio, value $120,253.

    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 4,443 shares
    Change vs previous 13F +1,306 shares

    0.01% of the 13F portfolio, value $104,899.

    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 3,137 shares
    Change vs previous 13F +1,383 shares

    <0.01% of the 13F portfolio, value $57,093.

    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 1,754 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $36,887.

    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).