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CONGRESS ASSET MANAGEMENT CO: IDXX position timeline

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

CONGRESS ASSET MANAGEMENT CO held 175,592 IDXX shares at 2026-09-30 per its 13F-HR filed 2026-10-06.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 175,592 shares
    Change vs previous 13F -14,601 shares

    0.59% of the 13F portfolio, value $91,692,125.

    13F-HR 0000897378-26-000015 filed by CONGRESS ASSET MANAGEMENT CO
    Accepted , ingested

  2. period ended2026-06-30
    13F 190,193 shares
    Change vs previous 13F +23,507 shares

    0.62% of the 13F portfolio, value $100,125,203.

    13F-HR 0000897378-26-000010 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 166,686 shares
    Change vs previous 13F +12,778 shares

    0.67% of the 13F portfolio, value $93,659,197.

    13F-HR 0000897378-26-000005 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 153,908 shares
    Change vs previous 13F +152,368 shares

    0.73% of the 13F portfolio, value $104,123,379.

    13F-HR 0000897378-26-000002 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 1,540 shares
    Change vs previous 13F -984 shares

    0.01% of the 13F portfolio, value $983,891.

    13F-HR 0000897378-25-000016 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 2,524 shares
    Change vs previous 13F -43 shares

    0.01% of the 13F portfolio, value $1,353,722.

    13F-HR 0000897378-25-000005 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 2,567 shares
    Change vs previous 13F -365 shares

    0.01% of the 13F portfolio, value $1,078,012.

    13F-HR 0000897378-25-000003 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 2,932 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $1,212,206.

    13F-HR 0000897378-25-000001 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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