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Disclosery

GAMMA Investing LLC: AMAT position timeline

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

GAMMA Investing LLC held 25,923 AMAT 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 25,923 shares
    Change vs previous 13F +1,110 shares

    0.45% of the 13F portfolio, value $13,256,508.

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

  2. period ended2026-06-30
    13F 24,813 shares
    Change vs previous 13F +2,247 shares

    0.67% of the 13F portfolio, value $17,939,454.

    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 22,566 shares
    Change vs previous 13F +3,036 shares

    0.36% of the 13F portfolio, value $7,712,833.

    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 19,530 shares
    Change vs previous 13F +2,731 shares

    0.25% of the 13F portfolio, value $5,019,015.

    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 16,799 shares
    Change vs previous 13F +771 shares

    0.19% of the 13F portfolio, value $3,439,427.

    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 16,028 shares
    Change vs previous 13F +3,457 shares

    0.19% of the 13F portfolio, value $2,934,246.

    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 12,571 shares
    Change vs previous 13F +2,711 shares

    0.14% of the 13F portfolio, value $1,824,304.

    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 9,860 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $1,603,532.

    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).