Skip to content
Disclosery

GAMMA Investing LLC: GRBK position timeline

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

GAMMA Investing LLC held 5,264 GRBK 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 5,264 shares
    Change vs previous 13F +486 shares

    0.01% of the 13F portfolio, value $348,003.

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

  2. period ended2026-06-30
    13F 4,778 shares
    Change vs previous 13F +612 shares

    0.01% of the 13F portfolio, value $382,431.

    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 4,166 shares
    Change vs previous 13F +885 shares

    0.01% of the 13F portfolio, value $268,499.

    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 3,281 shares
    Change vs previous 13F +174 shares

    0.01% of the 13F portfolio, value $205,587.

    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 3,107 shares
    Change vs previous 13F +367 shares

    0.01% of the 13F portfolio, value $229,483.

    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 2,740 shares
    Change vs previous 13F +340 shares

    0.01% of the 13F portfolio, value $172,291.

    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 2,400 shares
    Change vs previous 13F +646 shares

    0.01% of the 13F portfolio, value $139,944.

    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 $99,083.

    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).