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Lummis Asset Management, LP: MTDR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Lummis Asset Management, LP on MTDR, newest first. How the timeline and the estimate are built.

Lummis Asset Management, LP held 328,769 MTDR shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 328,769 shares
    Change vs previous 13F -3,825 shares

    9.66% of the 13F portfolio, value $16,156,261.

    13F-HR 0002011652-26-000003 filed by Lummis Asset Management, LP
    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 332,594 shares
    Change vs previous 13F -3,638 shares

    12.58% of the 13F portfolio, value $21,050,411.

    13F-HR 0002011652-26-000002 filed by Lummis Asset Management, LP
    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 336,232 shares
    Change vs previous 13F -225 shares

    8.78% of the 13F portfolio, value $14,269,686.

    13F-HR 0002011652-26-000001 filed by Lummis Asset Management, LP
    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 336,457 shares
    Change vs previous 13F +42 shares

    9.93% of the 13F portfolio, value $15,117,012.

    13F-HR 0002011652-25-000006 filed by Lummis Asset Management, LP
    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 336,415 shares
    Change vs previous 13F +3,025 shares

    10.39% of the 13F portfolio, value $15,885,623.

    13F-HR 0002011652-25-000004 filed by Lummis Asset Management, LP
    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 333,390 shares
    Change vs previous 13F +143,526 shares

    10.69% of the 13F portfolio, value $15,387,505.

    13F-HR 0002011652-25-000002 filed by Lummis Asset Management, LP
    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 189,864 shares
    Change vs previous 13F -1,238 shares

    13.53% of the 13F portfolio, value $10,681,749.

    13F-HR 0002011652-25-000001 filed by Lummis Asset Management, LP
    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 191,102 shares
    Change vs previous 13F not available

    11.03% of the 13F portfolio, value $9,444,261.

    13F-HR 0002011652-24-000004 filed by Lummis Asset Management, LP
    Filed (acceptance time not in the bulk data set), ingested

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