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WEITZ INVESTMENT MANAGEMENT, INC.: IDXX position timeline

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

WEITZ INVESTMENT MANAGEMENT, INC. held 35,300 IDXX 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 35,300 shares
    Change vs previous 13F 0 shares

    1.29% of the 13F portfolio, value $18,583,332.

    13F-HR 0001821268-26-000133 filed by WEITZ INVESTMENT 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 35,300 shares
    Change vs previous 13F 0 shares

    1.38% of the 13F portfolio, value $19,834,717.

    13F-HR 0001821268-26-000087 filed by WEITZ INVESTMENT 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 35,300 shares
    Change vs previous 13F -21,500 shares

    1.42% of the 13F portfolio, value $23,881,509.

    13F-HR 0001821268-26-000035 filed by WEITZ INVESTMENT 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 56,800 shares
    Change vs previous 13F -3,500 shares

    1.97% of the 13F portfolio, value $36,288,952.

    13F-HR 0001821268-25-000230 filed by WEITZ INVESTMENT 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 60,300 shares
    Change vs previous 13F 0 shares

    1.74% of the 13F portfolio, value $32,341,302.

    13F-HR 0001821268-25-000188 filed by WEITZ INVESTMENT 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 60,300 shares
    Change vs previous 13F not available

    1.35% of the 13F portfolio, value $25,322,985.

    13F-HR 0001821268-25-000102 filed by WEITZ INVESTMENT MANAGEMENT, INC.
    Filed (acceptance time not in the bulk data set), ingested

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