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Disclosery

IMC-Chicago, LLC: RIO position timeline

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

IMC-Chicago, LLC held 54,458 RIO shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 54,458 shares
    Change vs previous 13F +54,458 shares

    0.05% of the 13F portfolio, value $5,169,698.

    13F-HR 0001452861-26-000006 filed by IMC-Chicago, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2025-06-30
    13F 0 shares
    Change vs previous 13F -22,305 shares

    13F-HR 0001452861-25-000005 filed by IMC-Chicago, 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.

  3. period ended2025-03-31
    13F 22,305 shares
    Change vs previous 13F +6,873 shares

    0.05% of the 13F portfolio, value $1,340,084.

    13F-HR 0001452861-25-000002 filed by IMC-Chicago, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2024-12-31
    13F 15,432 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $907,556.

    13F-HR 0001452861-25-000001 filed by IMC-Chicago, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).