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BlackRock, Inc.: ONTO position timeline

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

BlackRock, Inc. held 5,505,181 ONTO shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 5,505,181 shares
    Change vs previous 13F -29,084 shares

    0.03% of the 13F portfolio, value $2,083,436,125.

    13F-HR 0002012383-26-003238 filed by BlackRock, 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 5,534,265 shares
    Change vs previous 13F +602,439 shares

    0.02% of the 13F portfolio, value $1,134,911,826.

    13F-HR 0002012383-26-001841 filed by BlackRock, 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 4,931,826 shares
    Change vs previous 13F -281,474 shares

    0.01% of the 13F portfolio, value $778,538,132.

    13F-HR 0002012383-26-000920 filed by BlackRock, 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 5,213,300 shares
    Change vs previous 13F -1,272,021 shares

    0.01% of the 13F portfolio, value $673,662,690.

    13F-HR 0002012383-25-002949 filed by BlackRock, 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 6,485,321 shares
    Change vs previous 13F +287,771 shares

    0.01% of the 13F portfolio, value $654,563,449.

    13F-HR 0001060021-25-000120 filed by BlackRock, 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 6,197,550 shares
    Change vs previous 13F +157,790 shares

    0.02% of the 13F portfolio, value $752,010,718.

    13F-HR 0001576419-25-000869 filed by BlackRock, Inc.
    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 6,039,760 shares
    Change vs previous 13F +68,232 shares

    0.02% of the 13F portfolio, value $1,006,646,799.

    13F-HR 0001060021-25-000002 filed by BlackRock, Inc.
    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 5,971,528 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $1,239,450,352.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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