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PERKINS CAPITAL MANAGEMENT INC: ATRC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PERKINS CAPITAL MANAGEMENT INC on ATRC, newest first. How the timeline and the estimate are built.

PERKINS CAPITAL MANAGEMENT INC held 17,500 ATRC shares at 2026-06-30 per its 13F-HR filed 2026-07-24.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 17,500 shares
    Change vs previous 13F -8,600 shares

    0.37% of the 13F portfolio, value $489,650.

    13F-HR 0000884300-26-000003 filed by PERKINS CAPITAL MANAGEMENT INC
    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 26,100 shares
    Change vs previous 13F -1,350 shares

    0.7% of the 13F portfolio, value $744,633.

    13F-HR 0000884300-26-000002 filed by PERKINS CAPITAL MANAGEMENT INC
    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 27,450 shares
    Change vs previous 13F -300 shares

    0.86% of the 13F portfolio, value $1,085,922.

    13F-HR 0000884300-26-000001 filed by PERKINS CAPITAL MANAGEMENT INC
    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 27,750 shares
    Change vs previous 13F -1,352 shares

    0.86% of the 13F portfolio, value $978,187.

    13F-HR 0000884300-25-000006 filed by PERKINS CAPITAL MANAGEMENT INC
    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 29,102 shares
    Change vs previous 13F -798 shares

    0.96% of the 13F portfolio, value $953,673.

    13F-HR 0000884300-25-000004 filed by PERKINS CAPITAL MANAGEMENT INC
    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 29,900 shares
    Change vs previous 13F -450 shares

    1.02% of the 13F portfolio, value $964,574.

    13F-HR 0000884300-25-000002 filed by PERKINS CAPITAL MANAGEMENT INC
    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 30,350 shares
    Change vs previous 13F +400 shares

    0.82% of the 13F portfolio, value $927,496.

    13F-HR 0000884300-25-000001 filed by PERKINS CAPITAL MANAGEMENT INC
    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 29,950 shares
    Change vs previous 13F not available

    0.79% of the 13F portfolio, value $839,798.

    13F-HR 0000884300-24-000009 filed by PERKINS CAPITAL MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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