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Riverstone Advisors, LLC: CIEN position timeline

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

Riverstone Advisors, LLC held 496 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 496 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $243,318.

    13F-HR 0001951757-26-001123 filed by Riverstone Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec ยง4.2).