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WELLINGTON MANAGEMENT GROUP LLP: ONTO position timeline

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

WELLINGTON MANAGEMENT GROUP LLP held 539,314 ONTO shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 539,314 shares
    Change vs previous 13F -4,578 shares

    0.04% of the 13F portfolio, value $204,103,383.

    13F-HR 0000902219-26-000311 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 543,892 shares
    Change vs previous 13F -674,656 shares

    0.02% of the 13F portfolio, value $111,535,933.

    13F-HR 0000902219-26-000209 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 1,218,548 shares
    Change vs previous 13F -180,447 shares

    0.03% of the 13F portfolio, value $192,359,986.

    13F-HR 0000902219-26-000103 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 1,398,995 shares
    Change vs previous 13F +1,292,772 shares

    0.03% of the 13F portfolio, value $180,778,134.

    13F-HR 0000902219-25-000462 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 106,223 shares
    Change vs previous 13F -383,190 shares

    <0.01% of the 13F portfolio, value $10,721,088.

    13F-HR 0000902219-25-000356 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 489,413 shares
    Change vs previous 13F +54,607 shares

    0.01% of the 13F portfolio, value $59,385,374.

    13F-HR 0000902219-25-000242 filed by WELLINGTON MANAGEMENT GROUP LLP
    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/A 434,806 shares
    Change vs previous 13F -38,448 shares

    0.01% of the 13F portfolio, value $72,469,116.

    13F-HR 0000902219-25-000131 filed by WELLINGTON MANAGEMENT GROUP LLP
    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 473,254 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $98,228,601.

    13F-HR 0000902219-24-000498 filed by WELLINGTON MANAGEMENT GROUP LLP
    Filed (acceptance time not in the bulk data set), ingested

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