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FMR LLC: MRK position timeline

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

FMR LLC held 45,440,355 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 45,440,355 shares
    Change vs previous 13F +924,345 shares

    0.25% of the 13F portfolio, value $5,839,085,718.

    13F-HR 0000315066-26-002260 filed by FMR 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 44,516,010 shares
    Change vs previous 13F +3,679,444 shares

    0.28% of the 13F portfolio, value $5,354,830,881.

    13F-HR 0000315066-26-001390 filed by FMR 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 40,836,566 shares
    Change vs previous 13F +7,409,816 shares

    0.22% of the 13F portfolio, value $4,298,456,848.

    13F-HR 0000315066-26-000611 filed by FMR 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 33,426,750 shares
    Change vs previous 13F +1,860,625 shares

    0.15% of the 13F portfolio, value $2,805,507,051.

    13F-HR 0000315066-25-002929 filed by FMR 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 31,566,125 shares
    Change vs previous 13F -241,918 shares

    0.14% of the 13F portfolio, value $2,498,774,545.

    13F-HR 0000315066-25-002231 filed by FMR 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 31,808,043 shares
    Change vs previous 13F -5,552,529 shares

    0.18% of the 13F portfolio, value $2,855,089,879.

    13F-HR 0000315066-25-001380 filed by FMR 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 37,360,572 shares
    Change vs previous 13F -12,345,732 shares

    0.22% of the 13F portfolio, value $3,716,629,736.

    13F-HR 0000315066-25-000939 filed by FMR 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 49,706,304 shares
    Change vs previous 13F not available

    0.34% of the 13F portfolio, value $5,644,647,868.

    13F-HR 0001385495-24-000014 filed by FMR LLC
    Filed (acceptance time not in the bulk data set), ingested

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