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CRAMER ROSENTHAL MCGLYNN LLC: CIEN position timeline

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

CRAMER ROSENTHAL MCGLYNN LLC held 21,869 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 21,869 shares
    Change vs previous 13F -8,022 shares

    0.54% of the 13F portfolio, value $10,728,057.

    13F-HR 0001140361-26-032805 filed by CRAMER ROSENTHAL MCGLYNN 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 29,891 shares
    Change vs previous 13F -66,673 shares

    0.85% of the 13F portfolio, value $11,604,583.

    13F-HR 0001140361-26-021560 filed by CRAMER ROSENTHAL MCGLYNN 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 96,564 shares
    Change vs previous 13F -84,166 shares

    1.46% of the 13F portfolio, value $22,583,423.

    13F-HR 0001140361-26-005371 filed by CRAMER ROSENTHAL MCGLYNN 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 180,730 shares
    Change vs previous 13F -284,761 shares

    1.69% of the 13F portfolio, value $26,326,939.

    13F-HR 0001140361-25-041649 filed by CRAMER ROSENTHAL MCGLYNN 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 465,491 shares
    Change vs previous 13F +66,518 shares

    2.6% of the 13F portfolio, value $37,858,383.

    13F-HR 0001140361-25-030114 filed by CRAMER ROSENTHAL MCGLYNN 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 398,973 shares
    Change vs previous 13F -27,653 shares

    1.74% of the 13F portfolio, value $24,109,938.

    13F-HR 0001140361-25-018995 filed by CRAMER ROSENTHAL MCGLYNN 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 426,626 shares
    Change vs previous 13F -274,582 shares

    2.04% of the 13F portfolio, value $36,182,151.

    13F-HR 0001140361-25-004268 filed by CRAMER ROSENTHAL MCGLYNN LLC
    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 701,208 shares
    Change vs previous 13F not available

    2.4% of the 13F portfolio, value $43,187,401.

    13F-HR 0001140361-24-046759 filed by CRAMER ROSENTHAL MCGLYNN LLC
    Filed (acceptance time not in the bulk data set), ingested

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