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WESTPORT ASSET MANAGEMENT INC: ZTS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of WESTPORT ASSET MANAGEMENT INC on ZTS, newest first. How the timeline and the estimate are built.

WESTPORT ASSET MANAGEMENT INC held 4,000 ZTS shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,000 shares
    Change vs previous 13F +2,000 shares

    0.12% of the 13F portfolio, value $287,440.

    13F-HR 0001398344-26-013971 filed by WESTPORT ASSET MANAGEMENT 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 2,000 shares
    Change vs previous 13F 0 shares

    0.1% of the 13F portfolio, value $236,420.

    13F-HR 0001398344-26-009311 filed by WESTPORT ASSET MANAGEMENT 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 2,000 shares
    Change vs previous 13F 0 shares

    0.12% of the 13F portfolio, value $292,640.

    13F-HR 0001398344-26-002171 filed by WESTPORT ASSET MANAGEMENT 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 2,000 shares
    Change vs previous 13F 0 shares

    0.12% of the 13F portfolio, value $292,640.

    13F-HR 0001398344-25-020710 filed by WESTPORT ASSET MANAGEMENT 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 2,000 shares
    Change vs previous 13F 0 shares

    0.14% of the 13F portfolio, value $311,900.

    13F-HR 0001398344-25-015122 filed by WESTPORT ASSET MANAGEMENT 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 2,000 shares
    Change vs previous 13F 0 shares

    0.16% of the 13F portfolio, value $329,300.

    13F-HR 0001398344-25-009421 filed by WESTPORT ASSET MANAGEMENT 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 2,000 shares
    Change vs previous 13F 0 shares

    0.16% of the 13F portfolio, value $325,860.

    13F-HR 0001398344-25-002785 filed by WESTPORT ASSET MANAGEMENT INC
    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 2,000 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $390,760.

    13F-HR 0001398344-24-020661 filed by WESTPORT ASSET MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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