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Disclosery

Munro Partners: CIEN position timeline

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

Munro Partners held 37,946 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-10.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 37,946 shares
    Change vs previous 13F -177,029 shares

    0.42% of the 13F portfolio, value $18,614,790.

    13F-HR 0001768744-26-000008 filed by Munro Partners
    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 214,975 shares
    Change vs previous 13F -89,455 shares

    2.83% of the 13F portfolio, value $83,459,744.

    13F-HR 0001768744-26-000006 filed by Munro Partners
    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 304,430 shares
    Change vs previous 13F -252,500 shares

    1.99% of the 13F portfolio, value $71,197,044.

    13F-HR 0001768744-26-000004 filed by Munro Partners
    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 556,930 shares
    Change vs previous 13F not available

    2.22% of the 13F portfolio, value $81,127,993.

    13F-HR 0001768744-25-000011 filed by Munro Partners
    Filed (acceptance time not in the bulk data set), ingested

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