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Disclosery

Calamos Advisors LLC: SLB position timeline

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

Calamos Advisors LLC held 215,171 SLB 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 215,171 shares
    Change vs previous 13F -102,975 shares

    0.04% of the 13F portfolio, value $10,003,300.

    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 318,146 shares
    Change vs previous 13F -177,868 shares

    0.06% of the 13F portfolio, value $16,349,523.

    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 496,014 shares
    Change vs previous 13F -269,220 shares

    0.08% of the 13F portfolio, value $19,037,017.

    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 765,234 shares
    Change vs previous 13F +438,188 shares

    0.11% of the 13F portfolio, value $26,301,093.

    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 327,046 shares
    Change vs previous 13F 0 shares

    0.05% of the 13F portfolio, value $11,054,155.

    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 327,046 shares
    Change vs previous 13F -231,460 shares

    0.06% of the 13F portfolio, value $13,670,523.

    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).

  7. period ended2024-12-31
    13F 558,506 shares
    Change vs previous 13F -6,881 shares

    0.1% of the 13F portfolio, value $21,413,120.

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

    • Calamos Advisors LLC: 558,506 shares
    • Calamos Wealth Management LLC: 0 shares

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

  8. period ended2024-09-30
    13F 565,387 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $23,717,984.

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

    • Calamos Advisors LLC: 557,372 shares
    • Calamos Wealth Management LLC: 8,015 shares

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