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MARATHON CAPITAL MANAGEMENT: GLW position timeline

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

MARATHON CAPITAL MANAGEMENT held 92,961 GLW 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 92,961 shares
    Change vs previous 13F -12,226 shares

    4.81% of the 13F portfolio, value $23,745,054.

    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 105,187 shares
    Change vs previous 13F -80,228 shares

    3.21% of the 13F portfolio, value $14,302,253.

    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 185,415 shares
    Change vs previous 13F -8,509 shares

    3.49% of the 13F portfolio, value $16,234,981.

    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 193,924 shares
    Change vs previous 13F -15,893 shares

    3.64% of the 13F portfolio, value $15,907,563.

    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 209,817 shares
    Change vs previous 13F -4,391 shares

    2.81% of the 13F portfolio, value $11,034,260.

    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 214,208 shares
    Change vs previous 13F -21,737 shares

    2.61% of the 13F portfolio, value $9,806,453.

    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 235,945 shares
    Change vs previous 13F +3,875 shares

    2.8% of the 13F portfolio, value $11,212,093.

    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 232,070 shares
    Change vs previous 13F not available

    2.54% of the 13F portfolio, value $10,477,970.

    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).