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ARROWSTREET CAPITAL, LIMITED PARTNERSHIP: MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARROWSTREET CAPITAL, LIMITED PARTNERSHIP on MRK, newest first. How the timeline and the estimate are built.

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP held 3,966,523 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 3,966,523 shares
    Change vs previous 13F +1,030,193 shares

    0.23% of the 13F portfolio, value $509,698,206.

    13F-HR 0001164508-26-000035 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 2,936,330 shares
    Change vs previous 13F -7,007,793 shares

    0.19% of the 13F portfolio, value $353,211,136.

    13F-HR 0001164508-26-000028 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 9,944,123 shares
    Change vs previous 13F -8,764,580 shares

    0.61% of the 13F portfolio, value $1,046,718,387.

    13F-HR 0001164508-26-000002 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 18,708,703 shares
    Change vs previous 13F -747,393 shares

    0.99% of the 13F portfolio, value $1,570,221,443.

    13F-HR 0001164508-25-000009 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 19,456,096 shares
    Change vs previous 13F +5,094,088 shares

    1.09% of the 13F portfolio, value $1,540,144,559.

    13F-HR 0001402828-25-000008 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 14,362,008 shares
    Change vs previous 13F +7,888,914 shares

    1.05% of the 13F portfolio, value $1,289,133,838.

    13F-HR 0001402828-25-000004 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 6,473,094 shares
    Change vs previous 13F -486,039 shares

    0.52% of the 13F portfolio, value $643,943,391.

    13F-HR 0001402828-25-000002 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    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 6,959,133 shares
    Change vs previous 13F not available

    0.67% of the 13F portfolio, value $790,279,143.

    13F-HR 0001164508-24-000006 filed by ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
    Filed (acceptance time not in the bulk data set), ingested

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