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Disclosery

PEAK6 LLC: CIEN position timeline

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

PEAK6 LLC held 44,570 CIEN 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 44,570 shares
    Change vs previous 13F +42,141 shares

    0.53% of the 13F portfolio, value $21,864,212.

    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 2,429 shares
    Change vs previous 13F -127,065 shares

    0.03% of the 13F portfolio, value $943,011.

    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 129,494 shares
    Change vs previous 13F +127,140 shares

    0.83% of the 13F portfolio, value $30,284,748.

    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 2,354 shares
    Change vs previous 13F -163,952 shares

    0.01% of the 13F portfolio, value $342,907.

    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).

  5. period ended2025-06-30
    13F/A 166,306 shares
    Change vs previous 13F not available

    0.46% of the 13F portfolio, value $13,525,667.

    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).