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Disclosery

GAMMA Investing LLC: OPEN position timeline

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

GAMMA Investing LLC held 3,036 OPEN 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 3,036 shares
    Change vs previous 13F +2,538 shares

    <0.01% of the 13F portfolio, value $7,195.

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

  2. period ended2026-06-30
    13F 498 shares
    Change vs previous 13F +413 shares

    <0.01% of the 13F portfolio, value $2,301.

    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 85 shares
    Change vs previous 13F -1,329 shares

    <0.01% of the 13F portfolio, value $398.

    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 1,414 shares
    Change vs previous 13F +1,414 shares

    <0.01% of the 13F portfolio, value $8,244.

    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 0 shares
    Change vs previous 13F -128 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  6. period ended2025-06-30
    13F 128 shares
    Change vs previous 13F -1,036 shares

    <0.01% of the 13F portfolio, value $68.

    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 1,164 shares
    Change vs previous 13F -303 shares

    <0.01% of the 13F portfolio, value $1,187.

    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 1,467 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,347.

    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).