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Disclosery

1832 Asset Management L.P.: CIEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of 1832 Asset Management L.P. on CIEN, newest first. How the timeline and the estimate are built.

1832 Asset Management L.P. held 100,800 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 100,800 shares
    Change vs previous 13F -186,600 shares

    0.06% of the 13F portfolio, value $49,448,448.

    13F-HR 0001062993-26-004300 filed by 1832 Asset Management L.P.
    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 287,400 shares
    Change vs previous 13F -502,500 shares

    0.15% of the 13F portfolio, value $111,577,302.

    13F-HR 0001062993-26-002620 filed by 1832 Asset Management L.P.
    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 789,900 shares
    Change vs previous 13F not available

    0.23% of the 13F portfolio, value $184,733,913.

    13F-HR 0001062993-26-000901 filed by 1832 Asset Management L.P.
    Filed (acceptance time not in the bulk data set), ingested

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