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BERKSHIRE ASSET MANAGEMENT LLC/PA: MRK position timeline

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

BERKSHIRE ASSET MANAGEMENT LLC/PA held 34,092 MRK shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 34,092 shares
    Change vs previous 13F -932 shares

    0.17% of the 13F portfolio, value $4,380,874.

    13F-HR 0001398344-26-013514 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 35,024 shares
    Change vs previous 13F +340 shares

    0.18% of the 13F portfolio, value $4,213,052.

    13F-HR 0001398344-26-008838 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 34,684 shares
    Change vs previous 13F -2,663 shares

    0.16% of the 13F portfolio, value $3,650,822.

    13F-HR 0001398344-26-003197 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 37,347 shares
    Change vs previous 13F +206 shares

    0.13% of the 13F portfolio, value $3,134,520.

    13F-HR 0001398344-25-020486 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 37,141 shares
    Change vs previous 13F -981 shares

    0.13% of the 13F portfolio, value $2,940,069.

    13F-HR 0001398344-25-015201 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 38,122 shares
    Change vs previous 13F -301,906 shares

    0.14% of the 13F portfolio, value $2,960,161.

    13F-HR 0001398344-25-009324 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 340,028 shares
    Change vs previous 13F -6,398 shares

    1.54% of the 13F portfolio, value $32,489,687.

    13F-HR 0001398344-25-002126 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    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 346,426 shares
    Change vs previous 13F not available

    2.18% of the 13F portfolio, value $42,887,491.

    13F-HR 0001398344-24-020774 filed by BERKSHIRE ASSET MANAGEMENT LLC/PA
    Filed (acceptance time not in the bulk data set), ingested

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