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Disclosery

GAMMA Investing LLC: RIO position timeline

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

GAMMA Investing LLC held 5,957 RIO 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 5,957 shares
    Change vs previous 13F +480 shares

    0.02% of the 13F portfolio, value $560,971.

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

  2. period ended2026-06-30
    13F 5,477 shares
    Change vs previous 13F +837 shares

    0.02% of the 13F portfolio, value $519,932.

    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 4,640 shares
    Change vs previous 13F +1,161 shares

    0.02% of the 13F portfolio, value $432,866.

    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 3,479 shares
    Change vs previous 13F +1,042 shares

    0.01% of the 13F portfolio, value $278,424.

    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 2,437 shares
    Change vs previous 13F +881 shares

    0.01% of the 13F portfolio, value $160,866.

    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 1,556 shares
    Change vs previous 13F -990 shares

    0.01% of the 13F portfolio, value $90,761.

    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 2,546 shares
    Change vs previous 13F +685 shares

    0.01% of the 13F portfolio, value $152,964.

    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 1,861 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $109,445.

    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).