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Strong Tower Advisory Services: GRMN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Strong Tower Advisory Services on GRMN, newest first. How the timeline and the estimate are built.

Strong Tower Advisory Services held 18,706 GRMN shares at 2026-06-30 per its 13F-HR filed 2026-07-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 18,706 shares
    Change vs previous 13F -133 shares

    0.8% of the 13F portfolio, value $4,443,423.

    13F-HR 0001889322-26-000003 filed by Strong Tower Advisory Services
    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 18,839 shares
    Change vs previous 13F -158 shares

    0.82% of the 13F portfolio, value $4,370,836.

    13F-HR 0001889322-26-000002 filed by Strong Tower Advisory Services
    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 18,997 shares
    Change vs previous 13F +2,278 shares

    0.69% of the 13F portfolio, value $3,853,541.

    13F-HR 0001889322-26-000001 filed by Strong Tower Advisory Services
    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 16,719 shares
    Change vs previous 13F -176 shares

    0.78% of the 13F portfolio, value $4,116,552.

    13F-HR 0001889322-25-000002 filed by Strong Tower Advisory Services
    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 16,895 shares
    Change vs previous 13F +142 shares

    0.7% of the 13F portfolio, value $3,526,324.

    13F-HR 0001085146-25-004157 filed by Strong Tower Advisory Services
    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 16,753 shares
    Change vs previous 13F +2,218 shares

    0.75% of the 13F portfolio, value $3,029,948.

    13F-HR 0001085146-25-001952 filed by Strong Tower Advisory Services
    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 14,535 shares
    Change vs previous 13F +152 shares

    0.78% of the 13F portfolio, value $2,997,989.

    13F-HR 0001085146-25-000286 filed by Strong Tower Advisory Services
    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 14,383 shares
    Change vs previous 13F not available

    0.71% of the 13F portfolio, value $2,531,839.

    13F-HR 0001085146-24-004743 filed by Strong Tower Advisory Services
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).