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Disclosery

Tandem Investment Advisors, Inc.: MRK position timeline

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

Tandem Investment Advisors, Inc. held 0 MRK shares at 2026-03-31 per its 13F-HR filed 2026-05-07.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -2,531 shares

    13F-HR 0001694284-26-000005 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 2,531 shares
    Change vs previous 13F -570 shares

    0.01% of the 13F portfolio, value $266,413.

    13F-HR 0001694284-26-000004 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 3,101 shares
    Change vs previous 13F +423 shares

    0.01% of the 13F portfolio, value $260,000.

    13F-HR 0001694284-25-000011 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 2,678 shares
    Change vs previous 13F +2,678 shares

    0.01% of the 13F portfolio, value $212,000.

    13F-HR 0001694284-25-000010 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -2,678 shares

    13F-HR 0001694284-25-000004 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  6. period ended2024-12-31
    13F 2,678 shares
    Change vs previous 13F -311 shares

    0.01% of the 13F portfolio, value $266,000.

    13F-HR 0001694284-25-000003 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 2,989 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $339,000.

    13F-HR 0001694284-24-000008 filed by Tandem Investment Advisors, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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