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ALLIANCEBERNSTEIN L.P.: CSTM position timeline

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

ALLIANCEBERNSTEIN L.P. held 2,162,231 CSTM 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 2,162,231 shares
    Change vs previous 13F -154,777 shares

    0.02% of the 13F portfolio, value $53,147,638.

    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 2,317,008 shares
    Change vs previous 13F +2,178,558 shares

    0.01% of the 13F portfolio, value $43,675,601.

    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 138,450 shares
    Change vs previous 13F -19,300 shares

    <0.01% of the 13F portfolio, value $2,609,783.

    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 157,750 shares
    Change vs previous 13F +1,500 shares

    <0.01% of the 13F portfolio, value $2,347,320.

    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 156,250 shares
    Change vs previous 13F +21,400 shares

    <0.01% of the 13F portfolio, value $2,078,125.

    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 134,850 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $1,360,637.

    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 134,850 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $1,384,910.

    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 134,850 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $2,192,661.

    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).