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ALLIANCEBERNSTEIN L.P.: MRK position timeline

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

ALLIANCEBERNSTEIN L.P. held 13,131,942 MRK 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 13,131,942 shares
    Change vs previous 13F +1,830,456 shares

    0.52% of the 13F portfolio, value $1,579,641,303.

    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 11,301,486 shares
    Change vs previous 13F +2,669,101 shares

    0.39% of the 13F portfolio, value $1,189,594,416.

    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 8,632,385 shares
    Change vs previous 13F +402,592 shares

    0.29% of the 13F portfolio, value $908,644,845.

    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 8,229,793 shares
    Change vs previous 13F -624,383 shares

    0.22% of the 13F portfolio, value $690,726,526.

    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 8,854,176 shares
    Change vs previous 13F -1,382,219 shares

    0.23% of the 13F portfolio, value $700,896,572.

    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 10,236,395 shares
    Change vs previous 13F -873,284 shares

    0.33% of the 13F portfolio, value $918,818,815.

    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 11,109,679 shares
    Change vs previous 13F -917,806 shares

    0.38% of the 13F portfolio, value $1,105,190,867.

    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 12,027,485 shares
    Change vs previous 13F not available

    0.46% of the 13F portfolio, value $1,365,841,197.

    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).