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Disclosery

GAMCO Investors (Gabelli): ZTS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GAMCO Investors (Gabelli) on ZTS, newest first. How the timeline and the estimate are built.

GAMCO Investors (Gabelli) held 81,613 ZTS shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 81,613 shares
    Change vs previous 13F +8,408 shares

    0.02% of the 13F portfolio, value $5,864,710.

    13F-HR 0001140361-26-032509 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 12,413 shares
    • GABELLI FUNDS LLC: 69,200 shares

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

  2. period ended2026-03-31
    13F 73,205 shares
    Change vs previous 13F -957 shares

    0.03% of the 13F portfolio, value $8,653,563.

    13F-HR 0001140361-26-021337 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 12,755 shares
    • GABELLI FUNDS LLC: 60,450 shares

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

  3. period ended2025-12-31
    13F 74,162 shares
    Change vs previous 13F -11,049 shares

    0.04% of the 13F portfolio, value $9,331,063.

    13F-HR 0001140361-26-003893 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 12,912 shares
    • GABELLI FUNDS LLC: 61,250 shares

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

  4. period ended2025-09-30
    13F 85,211 shares
    Change vs previous 13F -1,179 shares

    0.05% of the 13F portfolio, value $12,468,073.

    13F-HR 0001140361-25-041671 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 14,511 shares
    • GABELLI FUNDS LLC: 70,700 shares

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

  5. period ended2025-06-30
    13F 86,390 shares
    Change vs previous 13F +3,701 shares

    0.06% of the 13F portfolio, value $13,472,520.

    13F-HR 0001140361-25-030816 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 15,690 shares
    • GABELLI FUNDS LLC: 70,700 shares

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

  6. period ended2025-03-31
    13F 82,689 shares
    Change vs previous 13F -16,929 shares

    0.06% of the 13F portfolio, value $13,614,744.

    13F-HR 0001140361-25-018974 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 11,789 shares
    • GABELLI FUNDS LLC: 70,900 shares

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

  7. period ended2024-12-31
    13F 99,618 shares
    Change vs previous 13F -1,295 shares

    0.07% of the 13F portfolio, value $16,230,760.

    13F-HR 0001140361-25-004328 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 13,380 shares
    • GABELLI FUNDS LLC: 86,238 shares

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

  8. period ended2024-09-30
    13F 100,913 shares
    Change vs previous 13F not available

    0.08% of the 13F portfolio, value $19,716,382.

    13F-HR 0001140361-24-046503 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 13,710 shares
    • GABELLI FUNDS LLC: 87,203 shares

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