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Disclosery

GAMMA Investing LLC: GHM position timeline

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

GAMMA Investing LLC held 190 GHM 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 190 shares
    Change vs previous 13F +77 shares

    <0.01% of the 13F portfolio, value $16,399.

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

  2. period ended2026-06-30
    13F 113 shares
    Change vs previous 13F -7 shares

    <0.01% of the 13F portfolio, value $13,988.

    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 120 shares
    Change vs previous 13F +8 shares

    <0.01% of the 13F portfolio, value $9,470.

    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 112 shares
    Change vs previous 13F +25 shares

    <0.01% of the 13F portfolio, value $7,194.

    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 87 shares
    Change vs previous 13F +17 shares

    <0.01% of the 13F portfolio, value $4,776.

    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 70 shares
    Change vs previous 13F -118 shares

    <0.01% of the 13F portfolio, value $3,466.

    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 188 shares
    Change vs previous 13F +146 shares

    <0.01% of the 13F portfolio, value $5,418.

    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 42 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,868.

    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).