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Calamos Advisors LLC: BX position timeline

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

Calamos Advisors LLC held 104,550 BX 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 104,550 shares
    Change vs previous 13F -17,008 shares

    0.04% of the 13F portfolio, value $12,302,398.

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

    • Calamos Advisors LLC: 91,972 shares
    • Calamos Wealth Management LLC: 12,578 shares

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

  2. period ended2026-03-31
    13F 121,558 shares
    Change vs previous 13F +21,023 shares

    0.05% of the 13F portfolio, value $13,977,955.

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

    • Calamos Advisors LLC: 107,620 shares
    • Calamos Wealth Management LLC: 13,938 shares

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

  3. period ended2025-12-31
    13F 100,535 shares
    Change vs previous 13F -3,513 shares

    0.06% of the 13F portfolio, value $15,496,464.

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

    • Calamos Advisors LLC: 93,682 shares
    • Calamos Wealth Management LLC: 6,853 shares

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

  4. period ended2025-09-30
    13F 104,048 shares
    Change vs previous 13F +3,254 shares

    0.06% of the 13F portfolio, value $17,776,601.

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

    • Calamos Advisors LLC: 97,486 shares
    • Calamos Wealth Management LLC: 6,562 shares

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

  5. period ended2025-06-30
    13F 100,794 shares
    Change vs previous 13F -188 shares

    0.06% of the 13F portfolio, value $15,076,767.

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

    • Calamos Advisors LLC: 97,486 shares
    • Calamos Wealth Management LLC: 3,308 shares

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

  6. period ended2025-03-31
    13F 100,982 shares
    Change vs previous 13F +4,582 shares

    0.06% of the 13F portfolio, value $14,115,264.

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

    • Calamos Advisors LLC: 97,486 shares
    • Calamos Wealth Management LLC: 3,496 shares

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

  7. period ended2024-12-31
    13F 96,400 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $16,621,288.

    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).

  8. period ended2024-09-30
    13F 96,400 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $14,761,732.

    13F-HR 0001085146-24-005402 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).