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MILLENNIUM MANAGEMENT LLC: ATKR position timeline

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

MILLENNIUM MANAGEMENT LLC held 23,860 ATKR 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 23,860 shares
    Change vs previous 13F -15,366 shares

    <0.01% of the 13F portfolio, value $1,814,314.

    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 39,226 shares
    Change vs previous 13F +5,996 shares

    <0.01% of the 13F portfolio, value $2,310,804.

    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 33,230 shares
    Change vs previous 13F -20,189 shares

    <0.01% of the 13F portfolio, value $2,101,798.

    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 53,419 shares
    Change vs previous 13F +25,166 shares

    <0.01% of the 13F portfolio, value $3,351,508.

    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 28,253 shares
    Change vs previous 13F -43,919 shares

    <0.01% of the 13F portfolio, value $1,993,249.

    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 72,172 shares
    Change vs previous 13F -351,292 shares

    <0.01% of the 13F portfolio, value $4,329,598.

    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 423,464 shares
    Change vs previous 13F -32,474 shares

    0.03% of the 13F portfolio, value $35,338,071.

    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 455,938 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $38,636,186.

    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).