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Calamos Advisors LLC: ABT position timeline

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

Calamos Advisors LLC held 249,287 ABT 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 249,287 shares
    Change vs previous 13F -139,358 shares

    0.07% of the 13F portfolio, value $22,620,302.

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

    • Calamos Advisors LLC: 243,068 shares
    • Calamos Wealth Management LLC: 6,219 shares

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

  2. period ended2026-03-31
    13F 388,645 shares
    Change vs previous 13F -125,946 shares

    0.14% of the 13F portfolio, value $39,902,183.

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

    • Calamos Advisors LLC: 378,774 shares
    • Calamos Wealth Management LLC: 9,871 shares

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

  3. period ended2025-12-31
    13F 514,591 shares
    Change vs previous 13F -12,046 shares

    0.24% of the 13F portfolio, value $64,473,106.

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

    • Calamos Advisors LLC: 501,683 shares
    • Calamos Wealth Management LLC: 12,908 shares

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

  4. period ended2025-09-30
    13F 526,637 shares
    Change vs previous 13F +8,825 shares

    0.26% of the 13F portfolio, value $70,537,760.

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

    • Calamos Advisors LLC: 510,523 shares
    • Calamos Wealth Management LLC: 16,114 shares

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

  5. period ended2025-06-30
    13F 517,812 shares
    Change vs previous 13F +26,220 shares

    0.27% of the 13F portfolio, value $70,427,610.

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

    • Calamos Advisors LLC: 509,336 shares
    • Calamos Wealth Management LLC: 8,476 shares

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

  6. period ended2025-03-31
    13F 491,592 shares
    Change vs previous 13F +140,649 shares

    0.28% of the 13F portfolio, value $65,209,679.

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

    • Calamos Advisors LLC: 483,026 shares
    • Calamos Wealth Management LLC: 8,566 shares

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

  7. period ended2024-12-31
    13F 350,943 shares
    Change vs previous 13F +155 shares

    0.17% of the 13F portfolio, value $39,695,162.

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

    • Calamos Advisors LLC: 342,303 shares
    • Calamos Wealth Management LLC: 8,640 shares

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

  8. period ended2024-09-30
    13F 350,788 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $39,993,340.

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

    • Calamos Advisors LLC: 341,886 shares
    • Calamos Wealth Management LLC: 8,902 shares

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