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MILLENNIUM MANAGEMENT LLC: ACI position timeline

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

MILLENNIUM MANAGEMENT LLC held 6,350,699 ACI 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 6,350,699 shares
    Change vs previous 13F +5,989,413 shares

    0.06% of the 13F portfolio, value $85,924,957.

    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 361,286 shares
    Change vs previous 13F -280,704 shares

    <0.01% of the 13F portfolio, value $6,156,313.

    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 641,990 shares
    Change vs previous 13F -2,592,232 shares

    0.01% of the 13F portfolio, value $11,022,968.

    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 3,234,222 shares
    Change vs previous 13F +1,542,125 shares

    0.04% of the 13F portfolio, value $56,631,227.

    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 1,692,097 shares
    Change vs previous 13F +1,557,358 shares

    0.03% of the 13F portfolio, value $36,397,006.

    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 134,739 shares
    Change vs previous 13F -6,761,716 shares

    <0.01% of the 13F portfolio, value $2,962,911.

    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 6,896,455 shares
    Change vs previous 13F -1,147,179 shares

    0.12% of the 13F portfolio, value $135,446,376.

    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 8,043,634 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $148,646,356.

    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).