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Tower Research Capital LLC (TRC): ISRG position timeline

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

Tower Research Capital LLC (TRC) held 10,531 ISRG 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 10,531 shares
    Change vs previous 13F -5,096 shares

    0.1% of the 13F portfolio, value $4,187,968.

    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 15,627 shares
    Change vs previous 13F -9,872 shares

    0.19% of the 13F portfolio, value $7,203,891.

    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 25,499 shares
    Change vs previous 13F +17,051 shares

    0.35% of the 13F portfolio, value $14,441,614.

    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 8,448 shares
    Change vs previous 13F +2,151 shares

    0.1% of the 13F portfolio, value $3,778,199.

    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 6,297 shares
    Change vs previous 13F -13,856 shares

    0.09% of the 13F portfolio, value $3,421,853.

    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 20,153 shares
    Change vs previous 13F -9,630 shares

    0.29% of the 13F portfolio, value $9,833,298.

    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 29,783 shares
    Change vs previous 13F +16,436 shares

    0.31% of the 13F portfolio, value $15,545,535.

    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 13,347 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $6,556,980.

    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).