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Tower Research Capital LLC (TRC): IBM position timeline

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

Tower Research Capital LLC (TRC) held 19,729 IBM 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 19,729 shares
    Change vs previous 13F +6,541 shares

    0.14% of the 13F portfolio, value $5,547,992.

    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 13,188 shares
    Change vs previous 13F -28,913 shares

    0.08% of the 13F portfolio, value $3,196,639.

    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 42,101 shares
    Change vs previous 13F +17,826 shares

    0.3% of the 13F portfolio, value $12,470,737.

    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 24,275 shares
    Change vs previous 13F +1,721 shares

    0.19% of the 13F portfolio, value $6,849,434.

    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 22,554 shares
    Change vs previous 13F -11,176 shares

    0.18% of the 13F portfolio, value $6,648,468.

    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 33,730 shares
    Change vs previous 13F -24,072 shares

    0.25% of the 13F portfolio, value $8,387,302.

    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 57,802 shares
    Change vs previous 13F +7,802 shares

    0.25% of the 13F portfolio, value $12,706,613.

    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 50,000 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $11,054,000.

    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).