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PRICE T ROWE ASSOCIATES INC /MD/: MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PRICE T ROWE ASSOCIATES INC /MD/ on MRK, newest first. How the timeline and the estimate are built.

PRICE T ROWE ASSOCIATES INC /MD/ held 18,518,796 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 18,518,796 shares
    Change vs previous 13F -4,524,046 shares

    0.24% of the 13F portfolio, value $2,379,667,000.

    13F-HR 0000080255-26-000519 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 23,042,842 shares
    Change vs previous 13F +4,289,452 shares

    0.32% of the 13F portfolio, value $2,771,825,000.

    13F-HR 0000080255-26-000381 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 18,753,390 shares
    Change vs previous 13F +5,152,069 shares

    0.21% of the 13F portfolio, value $1,973,983,000.

    13F-HR 0000080255-26-000231 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 13,601,321 shares
    Change vs previous 13F +2,803,331 shares

    0.12% of the 13F portfolio, value $1,141,559,000.

    13F-HR 0000080255-25-000782 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 10,797,990 shares
    Change vs previous 13F -967,842 shares

    0.1% of the 13F portfolio, value $854,770,000.

    13F-HR 0000080255-25-000547 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 11,765,832 shares
    Change vs previous 13F -745,175 shares

    0.13% of the 13F portfolio, value $1,056,102,000.

    13F-HR 0000080255-25-000284 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 12,511,007 shares
    Change vs previous 13F -9,961,069 shares

    0.14% of the 13F portfolio, value $1,244,596,000.

    13F-HR 0000080255-25-000216 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 22,472,076 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $2,551,930,000.

    13F-HR 0001897612-24-002014 filed by PRICE T ROWE ASSOCIATES INC /MD/
    Filed (acceptance time not in the bulk data set), ingested

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