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MILLENNIUM MANAGEMENT LLC: SEIC position timeline

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

MILLENNIUM MANAGEMENT LLC held 266,217 SEIC 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 266,217 shares
    Change vs previous 13F +147,452 shares

    0.02% of the 13F portfolio, value $23,349,893.

    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 118,765 shares
    Change vs previous 13F -252,870 shares

    0.01% of the 13F portfolio, value $9,319,490.

    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 371,635 shares
    Change vs previous 13F -284,054 shares

    0.02% of the 13F portfolio, value $30,481,503.

    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 655,689 shares
    Change vs previous 13F +74,255 shares

    0.04% of the 13F portfolio, value $55,635,212.

    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 581,434 shares
    Change vs previous 13F -202,185 shares

    0.05% of the 13F portfolio, value $52,247,659.

    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 783,619 shares
    Change vs previous 13F +605,252 shares

    0.06% of the 13F portfolio, value $60,832,343.

    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 178,367 shares
    Change vs previous 13F -231,560 shares

    0.01% of the 13F portfolio, value $14,711,710.

    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 409,927 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $28,362,849.

    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).