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Disclosery

STRS OHIO: CIEN position timeline

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

STRS OHIO held 25,834 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 25,834 shares
    Change vs previous 13F +22,460 shares

    0.05% of the 13F portfolio, value $12,673,127.

    13F-HR 0000820478-26-000014 filed by STRS OHIO
    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 3,374 shares
    Change vs previous 13F -5 shares

    0.01% of the 13F portfolio, value $1,309,888.

    13F-HR 0000820478-26-000008 filed by STRS OHIO
    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 3,379 shares
    Change vs previous 13F +6 shares

    <0.01% of the 13F portfolio, value $790,247.

    13F-HR 0000820478-26-000006 filed by STRS OHIO
    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 3,373 shares
    Change vs previous 13F -14,879 shares

    <0.01% of the 13F portfolio, value $491,345.

    13F-HR 0000820478-25-000020 filed by STRS OHIO
    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 18,252 shares
    Change vs previous 13F -2,060 shares

    0.01% of the 13F portfolio, value $1,484,435.

    13F-HR 0000820478-25-000016 filed by STRS OHIO
    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 20,312 shares
    Change vs previous 13F +6,139 shares

    0.01% of the 13F portfolio, value $1,227,454.

    13F-HR 0000820478-25-000013 filed by STRS OHIO
    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 14,173 shares
    Change vs previous 13F -8,562 shares

    <0.01% of the 13F portfolio, value $1,202,012.

    13F-HR 0000820478-25-000014 filed by STRS OHIO
    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 22,735 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $1,400,249.

    13F-HR 0000820478-24-000016 filed by STRS OHIO
    Filed (acceptance time not in the bulk data set), ingested

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