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Tower Research Capital LLC (TRC): MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Tower Research Capital LLC (TRC) on MRK, newest first. How the timeline and the estimate are built.

Tower Research Capital LLC (TRC) held 37,782 MRK shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 37,782 shares
    Change vs previous 13F -6,957 shares

    0.12% of the 13F portfolio, value $4,854,986.

    13F-HR 0001533421-26-000008 filed by Tower Research Capital LLC (TRC)
    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 44,739 shares
    Change vs previous 13F -36,211 shares

    0.14% of the 13F portfolio, value $5,381,655.

    13F-HR 0001533421-26-000006 filed by Tower Research Capital LLC (TRC)
    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 80,950 shares
    Change vs previous 13F +53,015 shares

    0.21% of the 13F portfolio, value $8,520,797.

    13F-HR 0001533421-26-000004 filed by Tower Research Capital LLC (TRC)
    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 27,935 shares
    Change vs previous 13F -98,107 shares

    0.06% of the 13F portfolio, value $2,344,584.

    13F-HR 0001533421-25-000019 filed by Tower Research Capital LLC (TRC)
    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 126,042 shares
    Change vs previous 13F +12,967 shares

    0.27% of the 13F portfolio, value $9,977,484.

    13F-HR 0001533421-25-000013 filed by Tower Research Capital LLC (TRC)
    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 113,075 shares
    Change vs previous 13F -19,840 shares

    0.32% of the 13F portfolio, value $10,649,404.

    13F-HR 0001533421-25-000007 filed by Tower Research Capital LLC (TRC)
    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 132,915 shares
    Change vs previous 13F +12,418 shares

    0.26% of the 13F portfolio, value $13,222,384.

    13F-HR 0001533421-25-000001 filed by Tower Research Capital LLC (TRC)
    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 120,497 shares
    Change vs previous 13F not available

    0.36% of the 13F portfolio, value $13,683,640.

    13F-HR 0001533421-24-000021 filed by Tower Research Capital LLC (TRC)
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).