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Grantham, Mayo, Van Otterloo & Co. LLC: MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Grantham, Mayo, Van Otterloo & Co. LLC on MRK, newest first. How the timeline and the estimate are built.

Grantham, Mayo, Van Otterloo & Co. LLC held 6,785,008 MRK 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 6,785,008 shares
    Change vs previous 13F -228,769 shares

    1.96% of the 13F portfolio, value $871,873,732.

    13F-HR 0001072613-26-000636 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 7,013,777 shares
    Change vs previous 13F +143,632 shares

    2.16% of the 13F portfolio, value $843,687,399.

    13F-HR 0001072613-26-000397 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 6,870,145 shares
    Change vs previous 13F +244,795 shares

    1.85% of the 13F portfolio, value $723,151,560.

    13F-HR 0001072613-26-000185 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 6,625,350 shares
    Change vs previous 13F +155,777 shares

    1.57% of the 13F portfolio, value $556,065,620.

    13F-HR 0001072613-25-000786 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 6,469,573 shares
    Change vs previous 13F -217,023 shares

    1.55% of the 13F portfolio, value $512,131,448.

    13F-HR 0001072613-25-000542 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 6,686,596 shares
    Change vs previous 13F +521,325 shares

    1.89% of the 13F portfolio, value $600,188,858.

    13F-HR 0001072613-25-000369 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 6,165,271 shares
    Change vs previous 13F +253,227 shares

    2% of the 13F portfolio, value $613,321,134.

    13F-HR 0001072613-25-000109 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    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 5,912,044 shares
    Change vs previous 13F not available

    2.1% of the 13F portfolio, value $671,371,716.

    13F-HR 0001072613-24-000820 filed by Grantham, Mayo, Van Otterloo & Co. LLC
    Filed (acceptance time not in the bulk data set), ingested

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