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Disclosery

PARTHENON LLC: MRK position timeline

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

PARTHENON LLC held 149,637 MRK shares at 2026-06-30 per its 13F-HR filed 2026-07-23.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 149,637 shares
    Change vs previous 13F -3,425 shares

    2% of the 13F portfolio, value $19,228,342.

    13F-HR 0001088859-26-000004 filed by PARTHENON 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 153,062 shares
    Change vs previous 13F -679 shares

    2.1% of the 13F portfolio, value $18,411,817.

    13F-HR 0001088859-26-000002 filed by PARTHENON 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 153,741 shares
    Change vs previous 13F -421 shares

    1.75% of the 13F portfolio, value $16,182,807.

    13F-HR 0001088859-26-000001 filed by PARTHENON 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 154,162 shares
    Change vs previous 13F -2,102 shares

    1.43% of the 13F portfolio, value $12,938,840.

    13F-HR 0001088859-25-000003 filed by PARTHENON 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 156,264 shares
    Change vs previous 13F +300 shares

    1.42% of the 13F portfolio, value $12,369,851.

    13F-HR 0001085146-25-004248 filed by PARTHENON 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 155,964 shares
    Change vs previous 13F -2,236 shares

    1.72% of the 13F portfolio, value $13,999,320.

    13F-HR 0001085146-25-002554 filed by PARTHENON 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 158,200 shares
    Change vs previous 13F -520 shares

    1.9% of the 13F portfolio, value $15,737,727.

    13F-HR 0001085146-25-000674 filed by PARTHENON 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 158,720 shares
    Change vs previous 13F not available

    2.15% of the 13F portfolio, value $18,024,232.

    13F-HR 0001085146-24-005366 filed by PARTHENON LLC
    Filed (acceptance time not in the bulk data set), ingested

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