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Disclosery

PEAK6 LLC: WDC position timeline

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

PEAK6 LLC held 16,327 WDC 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 16,327 shares
    Change vs previous 13F -31,789 shares

    0.25% of the 13F portfolio, value $10,428,423.

    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 48,116 shares
    Change vs previous 13F +48,116 shares

    0.38% of the 13F portfolio, value $13,014,897.

    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 ended2025-06-30
    13F/A 0 shares
    Change vs previous 13F -15,576 shares

    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).

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

  4. period ended2025-03-31
    13F 15,576 shares
    Change vs previous 13F +12,879 shares

    0.02% of the 13F portfolio, value $629,738.

    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).

  5. period ended2024-12-31
    13F 2,697 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $160,822.

    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).