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Calamos Advisors LLC: BLK position timeline

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

Calamos Advisors LLC held 30,081 BLK 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 30,081 shares
    Change vs previous 13F -544 shares

    0.09% of the 13F portfolio, value $28,924,687.

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

    • Calamos Advisors LLC: 29,821 shares
    • Calamos Wealth Management LLC: 260 shares

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

  2. period ended2026-03-31
    13F 30,625 shares
    Change vs previous 13F +228 shares

    0.1% of the 13F portfolio, value $29,452,368.

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

    • Calamos Advisors LLC: 30,357 shares
    • Calamos Wealth Management LLC: 268 shares

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

  3. period ended2025-12-31
    13F 30,397 shares
    Change vs previous 13F -854 shares

    0.12% of the 13F portfolio, value $32,535,125.

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

    • Calamos Advisors LLC: 29,993 shares
    • Calamos Wealth Management LLC: 404 shares

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

  4. period ended2025-09-30
    13F 31,251 shares
    Change vs previous 13F +283 shares

    0.13% of the 13F portfolio, value $36,434,603.

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

    • Calamos Advisors LLC: 30,693 shares
    • Calamos Wealth Management LLC: 558 shares

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

  5. period ended2025-06-30
    13F 30,968 shares
    Change vs previous 13F +84 shares

    0.13% of the 13F portfolio, value $32,493,174.

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

    • Calamos Advisors LLC: 30,629 shares
    • Calamos Wealth Management LLC: 339 shares

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

  6. period ended2025-03-31
    13F 30,884 shares
    Change vs previous 13F +553 shares

    0.13% of the 13F portfolio, value $29,231,089.

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

    • Calamos Advisors LLC: 30,614 shares
    • Calamos Wealth Management LLC: 270 shares

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

  7. period ended2024-12-31
    13F 30,331 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $31,092,611.

    13F-HR 0001085146-25-000482 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).