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Grandeur Peak Global Advisors, LLC: ATRC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Grandeur Peak Global Advisors, LLC on ATRC, newest first. How the timeline and the estimate are built.

Grandeur Peak Global Advisors, LLC held 587,399 ATRC shares at 2026-06-30 per its 13F-HR/A filed 2026-08-17.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 587,399 shares
    Change vs previous 13F +205,497 shares

    3.8% of the 13F portfolio, value $16,435,424.

    13F-HR/A 0001569137-26-000007 filed by Grandeur Peak Global Advisors, LLC
    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 381,902 shares
    Change vs previous 13F +53,411 shares

    2.55% of the 13F portfolio, value $10,895,664.

    13F-HR 0001569137-26-000003 filed by Grandeur Peak Global Advisors, LLC
    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 328,491 shares
    Change vs previous 13F +249,591 shares

    1.75% of the 13F portfolio, value $12,995,104.

    13F-HR 0001569137-26-000001 filed by Grandeur Peak Global Advisors, LLC
    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 78,900 shares
    Change vs previous 13F +78,900 shares

    0.37% of the 13F portfolio, value $2,781,225.

    13F-HR 0001569137-25-000009 filed by Grandeur Peak Global Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -242,791 shares

    13F-HR 0001569137-25-000004 filed by Grandeur Peak Global Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  6. period ended2024-12-31
    13F 242,791 shares
    Change vs previous 13F -86,478 shares

    0.66% of the 13F portfolio, value $7,419,693.

    13F-HR 0001569137-25-000002 filed by Grandeur Peak Global Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 329,269 shares
    Change vs previous 13F not available

    0.77% of the 13F portfolio, value $9,232,703.

    13F-HR 0001569137-24-000007 filed by Grandeur Peak Global Advisors, LLC
    Filed (acceptance time not in the bulk data set), ingested

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