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MILLENNIUM MANAGEMENT LLC: MKSI position timeline

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

MILLENNIUM MANAGEMENT LLC held 645,071 MKSI 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 645,071 shares
    Change vs previous 13F -249,298 shares

    0.19% of the 13F portfolio, value $286,927,581.

    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 894,369 shares
    Change vs previous 13F +77,118 shares

    0.15% of the 13F portfolio, value $205,534,940.

    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 817,251 shares
    Change vs previous 13F +371,003 shares

    0.09% of the 13F portfolio, value $130,596,710.

    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 446,248 shares
    Change vs previous 13F +441,432 shares

    0.04% of the 13F portfolio, value $55,232,115.

    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 4,816 shares
    Change vs previous 13F -540,293 shares

    <0.01% of the 13F portfolio, value $478,518.

    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 545,109 shares
    Change vs previous 13F +310,314 shares

    0.04% of the 13F portfolio, value $43,690,486.

    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 234,795 shares
    Change vs previous 13F +21,533 shares

    0.02% of the 13F portfolio, value $24,510,250.

    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 213,262 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $23,183,712.

    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).