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Calamos Advisors LLC: GHM position timeline

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

Calamos Advisors LLC held 24,910 GHM shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 24,910 shares
    Change vs previous 13F +250 shares

    0.01% of the 13F portfolio, value $3,083,609.

    13F-HR 0001316507-26-000003 filed by Calamos 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 24,660 shares
    Change vs previous 13F +979 shares

    0.01% of the 13F portfolio, value $1,946,168.

    13F-HR 0001316507-26-000002 filed by Calamos 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 23,681 shares
    Change vs previous 13F -12,333 shares

    0.01% of the 13F portfolio, value $1,521,031.

    13F-HR 0001316507-26-000001 filed by Calamos 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 36,014 shares
    Change vs previous 13F +4,191 shares

    0.01% of the 13F portfolio, value $1,977,168.

    13F-HR 0001316507-25-000003 filed by Calamos 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 ended2025-06-30
    13F 31,823 shares
    Change vs previous 13F +11,316 shares

    0.01% of the 13F portfolio, value $1,575,557.

    13F-HR 0001085146-25-004696 filed by Calamos Advisors LLC
    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 20,507 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $591,012.

    13F-HR 0001085146-25-002415 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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