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Tower Research Capital LLC (TRC): AMKR position timeline

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

Tower Research Capital LLC (TRC) held 5,359 AMKR 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 5,359 shares
    Change vs previous 13F +442 shares

    0.01% of the 13F portfolio, value $462,107.

    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 4,917 shares
    Change vs previous 13F -5,317 shares

    0.01% of the 13F portfolio, value $221,413.

    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 10,234 shares
    Change vs previous 13F +2,059 shares

    0.01% of the 13F portfolio, value $404,038.

    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 8,175 shares
    Change vs previous 13F -5,046 shares

    0.01% of the 13F portfolio, value $232,170.

    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 13,221 shares
    Change vs previous 13F +6,412 shares

    0.01% of the 13F portfolio, value $277,509.

    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 6,809 shares
    Change vs previous 13F -8,769 shares

    <0.01% of the 13F portfolio, value $122,970.

    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 15,578 shares
    Change vs previous 13F +8,247 shares

    0.01% of the 13F portfolio, value $400,199.

    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 7,331 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $224,329.

    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).