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Tower Research Capital LLC (TRC): GERN position timeline

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

Tower Research Capital LLC (TRC) held 31,774 GERN 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 31,774 shares
    Change vs previous 13F -76,398 shares

    <0.01% of the 13F portfolio, value $40,671.

    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 108,172 shares
    Change vs previous 13F +42,365 shares

    <0.01% of the 13F portfolio, value $161,176.

    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 65,807 shares
    Change vs previous 13F -68,430 shares

    <0.01% of the 13F portfolio, value $86,865.

    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 134,237 shares
    Change vs previous 13F +55,920 shares

    0.01% of the 13F portfolio, value $183,905.

    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 78,317 shares
    Change vs previous 13F +66,294 shares

    <0.01% of the 13F portfolio, value $110,427.

    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 12,023 shares
    Change vs previous 13F -119,933 shares

    <0.01% of the 13F portfolio, value $19,117.

    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 131,956 shares
    Change vs previous 13F +121,929 shares

    0.01% of the 13F portfolio, value $467,124.

    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 10,027 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $45,522.

    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).