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MILLENNIUM MANAGEMENT LLC: ATO position timeline

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

MILLENNIUM MANAGEMENT LLC held 272,772 ATO 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 272,772 shares
    Change vs previous 13F +11,351 shares

    0.03% of the 13F portfolio, value $46,990,432.

    13F-HR 0001273087-26-000007 filed by MILLENNIUM MANAGEMENT LLC
    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 261,421 shares
    Change vs previous 13F +194,436 shares

    0.04% of the 13F portfolio, value $48,289,687.

    13F-HR 0001273087-26-000004 filed by MILLENNIUM MANAGEMENT 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 66,985 shares
    Change vs previous 13F +6,559 shares

    0.01% of the 13F portfolio, value $11,228,696.

    13F-HR 0001273087-26-000002 filed by MILLENNIUM MANAGEMENT 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 60,426 shares
    Change vs previous 13F -31,118 shares

    0.01% of the 13F portfolio, value $10,317,740.

    13F-HR 0001273087-25-000034 filed by MILLENNIUM MANAGEMENT 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 91,544 shares
    Change vs previous 13F +81,920 shares

    0.01% of the 13F portfolio, value $14,107,846.

    13F-HR 0001273087-25-000028 filed by MILLENNIUM MANAGEMENT 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 9,624 shares
    Change vs previous 13F -32,417 shares

    <0.01% of the 13F portfolio, value $1,487,678.

    13F-HR 0001273087-25-000019 filed by MILLENNIUM MANAGEMENT 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 42,041 shares
    Change vs previous 13F -182,617 shares

    0.01% of the 13F portfolio, value $5,855,050.

    13F-HR 0001273087-25-000015 filed by MILLENNIUM MANAGEMENT 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 224,658 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $31,162,311.

    13F-HR 0001273087-24-000118 filed by MILLENNIUM MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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