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ALLIANCEBERNSTEIN L.P.: IBM position timeline

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

ALLIANCEBERNSTEIN L.P. held 1,603,863 IBM 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 1,603,863 shares
    Change vs previous 13F +129,864 shares

    0.13% of the 13F portfolio, value $388,760,353.

    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 1,473,999 shares
    Change vs previous 13F -18,839 shares

    0.14% of the 13F portfolio, value $436,613,244.

    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 1,492,838 shares
    Change vs previous 13F -320,300 shares

    0.14% of the 13F portfolio, value $442,193,544.

    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 1,813,138 shares
    Change vs previous 13F +221,492 shares

    0.16% of the 13F portfolio, value $511,595,018.

    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 1,591,646 shares
    Change vs previous 13F +108,359 shares

    0.15% of the 13F portfolio, value $469,185,408.

    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 1,483,287 shares
    Change vs previous 13F -108,184 shares

    0.13% of the 13F portfolio, value $368,834,145.

    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 1,591,471 shares
    Change vs previous 13F +206,944 shares

    0.12% of the 13F portfolio, value $349,853,070.

    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 1,384,527 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $306,091,229.

    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).