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Calamos Advisors LLC: IBM position timeline

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

Calamos Advisors LLC held 121,543 IBM 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 121,543 shares
    Change vs previous 13F -10,263 shares

    0.11% of the 13F portfolio, value $34,179,142.

    13F-HR 0001316507-26-000003 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 113,224 shares
    • Calamos Wealth Management LLC: 8,319 shares

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

  2. period ended2026-03-31
    13F 131,806 shares
    Change vs previous 13F +7,990 shares

    0.11% of the 13F portfolio, value $31,948,531.

    13F-HR 0001316507-26-000002 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 123,566 shares
    • Calamos Wealth Management LLC: 8,240 shares

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

  3. period ended2025-12-31
    13F 123,816 shares
    Change vs previous 13F -4,382 shares

    0.13% of the 13F portfolio, value $36,675,457.

    13F-HR 0001316507-26-000001 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 115,326 shares
    • Calamos Wealth Management LLC: 8,490 shares

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

  4. period ended2025-09-30
    13F 128,198 shares
    Change vs previous 13F -36,746 shares

    0.13% of the 13F portfolio, value $36,172,271.

    13F-HR 0001316507-25-000003 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 119,870 shares
    • Calamos Wealth Management LLC: 8,328 shares

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

  5. period ended2025-06-30
    13F 164,944 shares
    Change vs previous 13F +120 shares

    0.19% of the 13F portfolio, value $48,622,113.

    13F-HR 0001085146-25-004696 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 160,205 shares
    • Calamos Wealth Management LLC: 4,739 shares

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

  6. period ended2025-03-31
    13F 164,824 shares
    Change vs previous 13F -7,020 shares

    0.18% of the 13F portfolio, value $40,985,069.

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

    • Calamos Advisors LLC: 160,875 shares
    • Calamos Wealth Management LLC: 3,949 shares

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

  7. period ended2024-12-31
    13F 171,844 shares
    Change vs previous 13F -4,436 shares

    0.16% of the 13F portfolio, value $37,776,466.

    13F-HR 0001085146-25-000482 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 169,845 shares
    • Calamos Wealth Management LLC: 1,999 shares

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

  8. period ended2024-09-30
    13F 176,280 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $38,971,982.

    13F-HR 0001085146-24-005402 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

    • Calamos Advisors LLC: 174,365 shares
    • Calamos Wealth Management LLC: 1,915 shares

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