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MARATHON CAPITAL MANAGEMENT: ATEC position timeline

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

MARATHON CAPITAL MANAGEMENT held 279,270 ATEC shares at 2026-06-30 per its 13F-HR filed 2026-07-22.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 279,270 shares
    Change vs previous 13F +17,675 shares

    0.49% of the 13F portfolio, value $2,415,686.

    13F-HR 0001172661-26-002744 filed by MARATHON CAPITAL MANAGEMENT
    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 261,595 shares
    Change vs previous 13F +62,695 shares

    0.64% of the 13F portfolio, value $2,846,154.

    13F-HR 0001172661-26-001839 filed by MARATHON CAPITAL MANAGEMENT
    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 198,900 shares
    Change vs previous 13F -2,025 shares

    0.9% of the 13F portfolio, value $4,184,856.

    13F-HR 0001172661-26-000374 filed by MARATHON CAPITAL MANAGEMENT
    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 200,925 shares
    Change vs previous 13F -30,450 shares

    0.67% of the 13F portfolio, value $2,921,450.

    13F-HR 0001172661-25-004808 filed by MARATHON CAPITAL MANAGEMENT
    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 231,375 shares
    Change vs previous 13F -7,400 shares

    0.65% of the 13F portfolio, value $2,568,263.

    13F-HR 0001172661-25-003317 filed by MARATHON CAPITAL MANAGEMENT
    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 238,775 shares
    Change vs previous 13F -1,700 shares

    0.64% of the 13F portfolio, value $2,421,179.

    13F-HR 0001172661-25-002209 filed by MARATHON CAPITAL MANAGEMENT
    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 240,475 shares
    Change vs previous 13F -5,275 shares

    0.55% of the 13F portfolio, value $2,207,561.

    13F-HR 0001172661-25-001088 filed by MARATHON CAPITAL MANAGEMENT
    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 245,750 shares
    Change vs previous 13F not available

    0.33% of the 13F portfolio, value $1,366,370.

    13F-HR 0001172661-24-005065 filed by MARATHON CAPITAL MANAGEMENT
    Filed (acceptance time not in the bulk data set), ingested

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