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MILLENNIUM MANAGEMENT LLC: MRK position timeline

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

MILLENNIUM MANAGEMENT LLC held 561,302 MRK 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 561,302 shares
    Change vs previous 13F -1,409,389 shares

    0.05% of the 13F portfolio, value $72,127,307.

    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 1,970,691 shares
    Change vs previous 13F -4,829,660 shares

    0.18% of the 13F portfolio, value $237,054,420.

    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 6,800,351 shares
    Change vs previous 13F +6,036,983 shares

    0.51% of the 13F portfolio, value $715,804,946.

    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 763,368 shares
    Change vs previous 13F -226,426 shares

    0.05% of the 13F portfolio, value $64,069,476.

    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 989,794 shares
    Change vs previous 13F -2,534,808 shares

    0.07% of the 13F portfolio, value $78,352,093.

    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 3,524,602 shares
    Change vs previous 13F -56,361 shares

    0.31% of the 13F portfolio, value $316,368,276.

    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 3,580,963 shares
    Change vs previous 13F +1,783,987 shares

    0.31% of the 13F portfolio, value $356,234,199.

    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 1,796,976 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $204,064,595.

    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).