Skip to content
Disclosery

PEAK6 LLC: COST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PEAK6 LLC on COST, newest first. How the timeline and the estimate are built.

PEAK6 LLC held 9,073 COST shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 9,073 shares
    Change vs previous 13F -1,588 shares

    0.21% of the 13F portfolio, value $8,487,237.

    13F-HR 0001389958-26-000014 filed by PEAK6 LLC
    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 10,661 shares
    Change vs previous 13F +10,658 shares

    0.31% of the 13F portfolio, value $10,623,305.

    13F-HR 0001389958-26-000013 filed by PEAK6 LLC
    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/A 3 shares
    Change vs previous 13F +3 shares

    <0.01% of the 13F portfolio, value $2,874.

    13F-HR/A 0001389958-26-000008 filed by PEAK6 LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F/A 0 shares
    Change vs previous 13F -1 shares

    13F-HR/A 0001389958-26-000011 filed by PEAK6 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.

  5. period ended2025-06-30
    13F/A 1 shares
    Change vs previous 13F -2 shares

    <0.01% of the 13F portfolio, value $711.

    13F-HR/A 0001389958-26-000010 filed by PEAK6 LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 3 shares
    Change vs previous 13F -12,591 shares

    <0.01% of the 13F portfolio, value $2,566.

    13F-HR 0001389958-25-000011 filed by PEAK6 LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 12,594 shares
    Change vs previous 13F not available

    0.45% of the 13F portfolio, value $11,539,877.

    13F-HR 0001389958-25-000006 filed by PEAK6 LLC
    Filed (acceptance time not in the bulk data set), ingested

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