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PERKINS CAPITAL MANAGEMENT INC: CSTL position timeline

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

PERKINS CAPITAL MANAGEMENT INC held 16,140 CSTL 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 16,140 shares
    Change vs previous 13F +725 shares

    0.29% of the 13F portfolio, value $384,939.

    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 15,415 shares
    Change vs previous 13F -12,630 shares

    0.35% of the 13F portfolio, value $378,438.

    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 28,045 shares
    Change vs previous 13F -100 shares

    0.87% of the 13F portfolio, value $1,090,950.

    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 28,145 shares
    Change vs previous 13F +150 shares

    0.56% of the 13F portfolio, value $640,862.

    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 27,995 shares
    Change vs previous 13F -5,970 shares

    0.57% of the 13F portfolio, value $571,658.

    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 33,965 shares
    Change vs previous 13F -200 shares

    0.72% of the 13F portfolio, value $679,979.

    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 34,165 shares
    Change vs previous 13F +1,525 shares

    0.81% of the 13F portfolio, value $910,497.

    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 32,640 shares
    Change vs previous 13F not available

    0.87% of the 13F portfolio, value $930,893.

    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).