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Calamos Advisors LLC: MPC position timeline

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

Calamos Advisors LLC held 295,837 MPC 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 295,837 shares
    Change vs previous 13F -28,034 shares

    0.24% of the 13F portfolio, value $75,636,646.

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

    • Calamos Advisors LLC: 290,934 shares
    • Calamos Wealth Management LLC: 4,903 shares

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

  2. period ended2026-03-31
    13F 323,871 shares
    Change vs previous 13F +6,017 shares

    0.27% of the 13F portfolio, value $79,082,820.

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

    • Calamos Advisors LLC: 319,159 shares
    • Calamos Wealth Management LLC: 4,712 shares

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

  3. period ended2025-12-31
    13F 317,854 shares
    Change vs previous 13F -24,204 shares

    0.19% of the 13F portfolio, value $51,692,597.

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

    • Calamos Advisors LLC: 313,204 shares
    • Calamos Wealth Management LLC: 4,650 shares

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

  4. period ended2025-09-30
    13F 342,058 shares
    Change vs previous 13F +1,354 shares

    0.24% of the 13F portfolio, value $65,928,258.

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

    • Calamos Advisors LLC: 336,206 shares
    • Calamos Wealth Management LLC: 5,852 shares

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

  5. period ended2025-06-30
    13F 340,704 shares
    Change vs previous 13F +60,052 shares

    0.22% of the 13F portfolio, value $56,594,342.

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

    • Calamos Advisors LLC: 335,232 shares
    • Calamos Wealth Management LLC: 5,472 shares

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

  6. period ended2025-03-31
    13F 280,652 shares
    Change vs previous 13F +2,681 shares

    0.18% of the 13F portfolio, value $40,888,190.

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

    • Calamos Advisors LLC: 275,994 shares
    • Calamos Wealth Management LLC: 4,658 shares

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

  7. period ended2024-12-31
    13F 277,971 shares
    Change vs previous 13F +715 shares

    0.16% of the 13F portfolio, value $38,776,955.

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

    • Calamos Advisors LLC: 273,786 shares
    • Calamos Wealth Management LLC: 4,185 shares

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

  8. period ended2024-09-30
    13F 277,256 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $45,167,775.

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

    • Calamos Advisors LLC: 273,160 shares
    • Calamos Wealth Management LLC: 4,096 shares

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