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Disclosery

GAMMA Investing LLC: GPK position timeline

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

GAMMA Investing LLC held 34,787 GPK 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 34,787 shares
    Change vs previous 13F -5,443 shares

    0.01% of the 13F portfolio, value $314,822.

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

  2. period ended2026-06-30
    13F 40,230 shares
    Change vs previous 13F +20,048 shares

    0.02% of the 13F portfolio, value $425,231.

    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 20,182 shares
    Change vs previous 13F +17,740 shares

    0.01% of the 13F portfolio, value $200,609.

    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 2,442 shares
    Change vs previous 13F -3,605 shares

    <0.01% of the 13F portfolio, value $36,777.

    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 6,047 shares
    Change vs previous 13F +206 shares

    0.01% of the 13F portfolio, value $118,340.

    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 5,841 shares
    Change vs previous 13F +2,065 shares

    0.01% of the 13F portfolio, value $123,070.

    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 3,776 shares
    Change vs previous 13F -708 shares

    0.01% of the 13F portfolio, value $98,025.

    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 4,484 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $121,785.

    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).