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Ring Mountain Capital, LLC: CIEN position timeline

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

Ring Mountain Capital, LLC held 1,946 CIEN shares at 2026-09-30 per its 13F-HR filed 2026-10-13.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 1,946 shares
    Change vs previous 13F +228 shares

    0.28% of the 13F portfolio, value $684,642.

    13F-HR 0002051343-26-000004 filed by Ring Mountain Capital, LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 1,718 shares
    Change vs previous 13F 0 shares

    0.35% of the 13F portfolio, value $842,782.

    13F-HR 0002051343-26-000003 filed by Ring Mountain Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 1,718 shares
    Change vs previous 13F +154 shares

    0.36% of the 13F portfolio, value $667,000.

    13F-HR 0002051343-26-000002 filed by Ring Mountain Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 1,564 shares
    Change vs previous 13F +128 shares

    0.2% of the 13F portfolio, value $381,000.

    13F-HR 0002051343-26-000001 filed by Ring Mountain Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 1,436 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $209,000.

    13F-HR 0002051343-25-000005 filed by Ring Mountain Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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