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Tower Research Capital LLC (TRC): AMT position timeline

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

Tower Research Capital LLC (TRC) held 20,818 AMT 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 20,818 shares
    Change vs previous 13F -25,479 shares

    0.08% of the 13F portfolio, value $3,405,200.

    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 46,297 shares
    Change vs previous 13F +12,929 shares

    0.21% of the 13F portfolio, value $7,989,936.

    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 33,368 shares
    Change vs previous 13F +11,347 shares

    0.14% of the 13F portfolio, value $5,858,420.

    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 22,021 shares
    Change vs previous 13F +2,866 shares

    0.12% of the 13F portfolio, value $4,235,079.

    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 19,155 shares
    Change vs previous 13F -306 shares

    0.11% of the 13F portfolio, value $4,233,638.

    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 19,461 shares
    Change vs previous 13F +7,013 shares

    0.13% of the 13F portfolio, value $4,224,204.

    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 12,448 shares
    Change vs previous 13F -22,502 shares

    0.05% of the 13F portfolio, value $2,283,088.

    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 34,950 shares
    Change vs previous 13F not available

    0.22% of the 13F portfolio, value $8,127,972.

    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).