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Disclosery

DUMAC, INC.: ARCO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DUMAC, INC. on ARCO, newest first. How the timeline and the estimate are built.

DUMAC, INC. held 60,857 ARCO shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 60,857 shares
    Change vs previous 13F 0 shares

    0.04% of the 13F portfolio, value $490,507.

    13F-HR 0001584258-26-000015 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2026-03-31
    13F 60,857 shares
    Change vs previous 13F 0 shares

    0.06% of the 13F portfolio, value $502,070.

    13F-HR 0001584258-26-000007 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 60,857 shares
    Change vs previous 13F 0 shares

    0.07% of the 13F portfolio, value $446,690.

    13F-HR 0001584258-26-000005 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 60,857 shares
    Change vs previous 13F 0 shares

    3.02% of the 13F portfolio, value $480,162.

    13F-HR 0001584258-25-000007 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 60,857 shares
    Change vs previous 13F 0 shares

    1.96% of the 13F portfolio, value $490,507.

    13F-HR 0001085146-25-003298 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 60,857 shares
    Change vs previous 13F 0 shares

    0.68% of the 13F portfolio, value $443,039.

    13F-HR 0001085146-25-001650 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 60,857 shares
    Change vs previous 13F not available

    1.72% of the 13F portfolio, value $530,673.

    13F-HR 0001085146-24-005920 filed by DUMAC, INC.
    Filed (acceptance time not in the bulk data set), ingested

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