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CITADEL ADVISORS LLC: ONTO position timeline

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

CITADEL ADVISORS LLC held 342,187 ONTO shares at 2026-06-30 per its 13F-HR/A filed 2026-09-02.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 342,187 shares
    Change vs previous 13F +45,617 shares

    0.07% of the 13F portfolio, value $129,500,670.

    13F-HR/A 0001104659-26-104387 filed by CITADEL ADVISORS LLC
    Accepted , ingested

  2. period ended2026-03-31
    13F 296,570 shares
    Change vs previous 13F +157,804 shares

    0.04% of the 13F portfolio, value $60,817,610.

    13F-HR 0001104659-26-062477 filed by CITADEL ADVISORS LLC
    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 138,766 shares
    Change vs previous 13F -252,516 shares

    0.01% of the 13F portfolio, value $21,905,600.

    13F-HR 0001104659-26-016408 filed by CITADEL ADVISORS LLC
    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 391,282 shares
    Change vs previous 13F +102,218 shares

    0.04% of the 13F portfolio, value $50,561,460.

    13F-HR 0001104659-25-112514 filed by CITADEL ADVISORS LLC
    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 289,064 shares
    Change vs previous 13F +285,949 shares

    0.03% of the 13F portfolio, value $29,175,230.

    13F-HR 0001104659-25-078555 filed by CITADEL ADVISORS LLC
    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 3,115 shares
    Change vs previous 13F -20,648 shares

    <0.01% of the 13F portfolio, value $377,974.

    13F-HR 0000950123-25-005687 filed by CITADEL ADVISORS LLC
    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 23,763 shares
    Change vs previous 13F +19,262 shares

    <0.01% of the 13F portfolio, value $3,960,580.

    13F-HR 0000950123-25-002739 filed by CITADEL ADVISORS LLC
    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 4,501 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $934,228.

    13F-HR 0000950123-24-011767 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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