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MASSACHUSETTS FINANCIAL SERVICES CO /MA/: MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MASSACHUSETTS FINANCIAL SERVICES CO /MA/ on MRK, newest first. How the timeline and the estimate are built.

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ held 256,668 MRK shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 256,668 shares
    Change vs previous 13F -15,161 shares

    0.01% of the 13F portfolio, value $36,394,006.

    13F-HR 0000912938-26-000775 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 271,829 shares
    Change vs previous 13F -4,144,192 shares

    0.01% of the 13F portfolio, value $35,638,856.

    13F-HR 0000912938-26-000604 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 4,416,021 shares
    Change vs previous 13F -3,132,999 shares

    0.15% of the 13F portfolio, value $464,830,370.

    13F-HR 0000912938-26-000025 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 7,549,020 shares
    Change vs previous 13F -130,846 shares

    0.2% of the 13F portfolio, value $633,589,249.

    13F-HR 0000912938-25-000200 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 7,679,866 shares
    Change vs previous 13F -303,327 shares

    0.19% of the 13F portfolio, value $607,938,193.

    13F-HR 0000912938-25-000121 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 7,983,193 shares
    Change vs previous 13F -214,494 shares

    0.24% of the 13F portfolio, value $716,571,404.

    13F-HR 0000912938-25-000044 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 8,197,687 shares
    Change vs previous 13F -396,589 shares

    0.26% of the 13F portfolio, value $815,505,902.

    13F-HR 0000912938-25-000009 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    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 8,594,276 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $975,965,982.

    13F-HR 0000912938-24-000298 filed by MASSACHUSETTS FINANCIAL SERVICES CO /MA/
    Filed (acceptance time not in the bulk data set), ingested

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