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AMERICAN CENTURY COMPANIES INC: CIEN position timeline

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

AMERICAN CENTURY COMPANIES INC held 1,851,788 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,851,788 shares
    Change vs previous 13F +1,315,946 shares

    0.4% of the 13F portfolio, value $908,413,121.

    13F-HR 0000748054-26-000005 filed by AMERICAN CENTURY COMPANIES 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 535,842 shares
    Change vs previous 13F +283,091 shares

    0.11% of the 13F portfolio, value $208,029,939.

    13F-HR 0000748054-26-000002 filed by AMERICAN CENTURY COMPANIES 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 252,751 shares
    Change vs previous 13F -332,996 shares

    0.03% of the 13F portfolio, value $59,110,876.

    13F-HR 0000748054-26-000001 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 585,747 shares
    Change vs previous 13F +106,991 shares

    0.04% of the 13F portfolio, value $85,325,765.

    13F-HR 0000748054-25-000009 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 478,756 shares
    Change vs previous 13F +429,780 shares

    0.02% of the 13F portfolio, value $38,937,226.

    13F-HR 0001085146-25-004910 filed by AMERICAN CENTURY COMPANIES INC
    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 48,976 shares
    Change vs previous 13F +4,265 shares

    <0.01% of the 13F portfolio, value $2,959,619.

    13F-HR 0001085146-25-003039 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 44,711 shares
    Change vs previous 13F +669 shares

    <0.01% of the 13F portfolio, value $3,791,940.

    13F-HR 0001085146-25-000985 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 44,042 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,712,547.

    13F-HR 0001085146-24-005525 filed by AMERICAN CENTURY COMPANIES INC
    Filed (acceptance time not in the bulk data set), ingested

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