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ALLIANCEBERNSTEIN L.P.: CIEN position timeline

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

ALLIANCEBERNSTEIN L.P. held 146,118 CIEN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 146,118 shares
    Change vs previous 13F -381,293 shares

    0.02% of the 13F portfolio, value $56,727,391.

    13F-HR 0001109448-26-000261 filed by ALLIANCEBERNSTEIN 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 527,411 shares
    Change vs previous 13F +169,841 shares

    0.04% of the 13F portfolio, value $123,345,611.

    13F-HR 0001109448-26-000101 filed by ALLIANCEBERNSTEIN 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 357,570 shares
    Change vs previous 13F +103,503 shares

    0.03% of the 13F portfolio, value $83,624,896.

    13F-HR 0001109448-26-000021 filed by ALLIANCEBERNSTEIN L.P.
    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 254,067 shares
    Change vs previous 13F -92,577 shares

    0.01% of the 13F portfolio, value $37,009,940.

    13F-HR 0001109448-25-000079 filed by ALLIANCEBERNSTEIN L.P.
    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 346,644 shares
    Change vs previous 13F -84,873 shares

    0.01% of the 13F portfolio, value $28,192,557.

    13F-HR 0001532155-25-000161 filed by ALLIANCEBERNSTEIN L.P.
    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 431,517 shares
    Change vs previous 13F -11,816 shares

    0.01% of the 13F portfolio, value $26,076,572.

    13F-HR 0001532155-25-000116 filed by ALLIANCEBERNSTEIN L.P.
    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 443,333 shares
    Change vs previous 13F +6,079 shares

    0.01% of the 13F portfolio, value $37,599,072.

    13F-HR 0001532155-25-000050 filed by ALLIANCEBERNSTEIN L.P.
    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 437,254 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $26,930,474.

    13F-HR 0001532155-24-000162 filed by ALLIANCEBERNSTEIN L.P.
    Filed (acceptance time not in the bulk data set), ingested

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