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Disclosery

CITADEL ADVISORS LLC: ATO position timeline

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

CITADEL ADVISORS LLC held 1,736,405 ATO 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 1,736,405 shares
    Change vs previous 13F +984,801 shares

    0.17% of the 13F portfolio, value $299,130,489.

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

  2. period ended2026-03-31
    13F 751,604 shares
    Change vs previous 13F +219,755 shares

    0.1% of the 13F portfolio, value $138,836,291.

    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 531,849 shares
    Change vs previous 13F +381,226 shares

    0.06% of the 13F portfolio, value $89,153,847.

    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 150,623 shares
    Change vs previous 13F +77,548 shares

    0.02% of the 13F portfolio, value $25,718,877.

    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 73,075 shares
    Change vs previous 13F -285,866 shares

    0.01% of the 13F portfolio, value $11,261,588.

    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 358,941 shares
    Change vs previous 13F -369,246 shares

    0.05% of the 13F portfolio, value $55,485,100.

    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 728,187 shares
    Change vs previous 13F +355,031 shares

    0.09% of the 13F portfolio, value $101,414,604.

    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 373,156 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $51,760,469.

    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).