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Tower Research Capital LLC (TRC): AMBA position timeline

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

Tower Research Capital LLC (TRC) held 2,847 AMBA 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 2,847 shares
    Change vs previous 13F -12 shares

    0.01% of the 13F portfolio, value $244,273.

    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 2,859 shares
    Change vs previous 13F +604 shares

    <0.01% of the 13F portfolio, value $147,167.

    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 2,255 shares
    Change vs previous 13F +64 shares

    <0.01% of the 13F portfolio, value $159,744.

    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 2,191 shares
    Change vs previous 13F -4,733 shares

    <0.01% of the 13F portfolio, value $180,802.

    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 6,924 shares
    Change vs previous 13F +6,516 shares

    0.01% of the 13F portfolio, value $457,434.

    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 408 shares
    Change vs previous 13F -716 shares

    <0.01% of the 13F portfolio, value $20,178.

    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 1,124 shares
    Change vs previous 13F +843 shares

    <0.01% of the 13F portfolio, value $81,760.

    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 281 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $15,850.

    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).