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CONGRESS ASSET MANAGEMENT CO: ONTO position timeline

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

CONGRESS ASSET MANAGEMENT CO held 1,156 ONTO 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 1,156 shares
    Change vs previous 13F +5 shares

    <0.01% of the 13F portfolio, value $355,840.

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

  2. period ended2026-06-30
    13F 1,151 shares
    Change vs previous 13F -4 shares

    <0.01% of the 13F portfolio, value $435,596.

    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 1,155 shares
    Change vs previous 13F -205 shares

    <0.01% of the 13F portfolio, value $236,856.

    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 1,360 shares
    Change vs previous 13F -3,503 shares

    <0.01% of the 13F portfolio, value $214,690.

    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 4,863 shares
    Change vs previous 13F +630 shares

    <0.01% of the 13F portfolio, value $628,397.

    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 4,233 shares
    Change vs previous 13F -448,660 shares

    <0.01% of the 13F portfolio, value $427,237.

    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 452,893 shares
    Change vs previous 13F -35,287 shares

    0.41% of the 13F portfolio, value $54,954,037.

    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 488,180 shares
    Change vs previous 13F not available

    0.55% of the 13F portfolio, value $81,364,961.

    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).