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Tandem Investment Advisors, Inc.: ZTS position timeline

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

Tandem Investment Advisors, Inc. held 498,095 ZTS shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 498,095 shares
    Change vs previous 13F -181,659 shares

    2.4% of the 13F portfolio, value $35,793,106.

    13F-HR 0001694284-26-000007 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).

  2. period ended2026-03-31
    13F 679,754 shares
    Change vs previous 13F -28,021 shares

    3.94% of the 13F portfolio, value $80,353,720.

    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).

  3. period ended2025-12-31
    13F 707,775 shares
    Change vs previous 13F -82,466 shares

    3.32% of the 13F portfolio, value $89,052,251.

    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).

  4. period ended2025-09-30
    13F 790,241 shares
    Change vs previous 13F -826 shares

    3.95% of the 13F portfolio, value $115,628,000.

    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).

  5. period ended2025-06-30
    13F 791,067 shares
    Change vs previous 13F +395,441 shares

    4.32% of the 13F portfolio, value $123,367,000.

    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).

  6. period ended2025-03-31
    13F 395,626 shares
    Change vs previous 13F +198,089 shares

    2.27% of the 13F portfolio, value $65,140,000.

    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).

  7. period ended2024-12-31
    13F 197,537 shares
    Change vs previous 13F not available

    1.22% of the 13F portfolio, value $32,185,000.

    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).