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T. Rowe Price Investment Management, Inc.: MLM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of T. Rowe Price Investment Management, Inc. on MLM, newest first. How the timeline and the estimate are built.

T. Rowe Price Investment Management, Inc. held 641,321 MLM shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 641,321 shares
    Change vs previous 13F -311,080 shares

    0.24% of the 13F portfolio, value $369,850,000.

    13F-HR 0001897612-26-000578 filed by T. Rowe Price Investment Management, Inc.
    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 952,401 shares
    Change vs previous 13F +34,836 shares

    0.39% of the 13F portfolio, value $560,660,000.

    13F-HR 0001897612-26-000460 filed by T. Rowe Price Investment Management, Inc.
    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/A 917,565 shares
    Change vs previous 13F -136,097 shares

    0.36% of the 13F portfolio, value $571,332,000.

    13F-HR/A 0001897612-26-000299 filed by T. Rowe Price Investment Management, Inc.
    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 1,053,662 shares
    Change vs previous 13F -87,782 shares

    0.41% of the 13F portfolio, value $664,103,000.

    13F-HR 0001897612-25-000511 filed by T. Rowe Price Investment Management, Inc.
    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 1,141,444 shares
    Change vs previous 13F -72,999 shares

    0.4% of the 13F portfolio, value $626,608,000.

    13F-HR 0000080255-25-000548 filed by T. Rowe Price Investment Management, Inc.
    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 1,214,443 shares
    Change vs previous 13F -392,259 shares

    0.38% of the 13F portfolio, value $580,662,000.

    13F-HR 0000080255-25-000283 filed by T. Rowe Price Investment Management, Inc.
    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 1,606,702 shares
    Change vs previous 13F -1,857,251 shares

    0.51% of the 13F portfolio, value $829,862,000.

    13F-HR 0000080255-25-000217 filed by T. Rowe Price Investment Management, Inc.
    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 3,463,953 shares
    Change vs previous 13F not available

    1.12% of the 13F portfolio, value $1,864,473,000.

    13F-HR 0001897612-24-002015 filed by T. Rowe Price Investment Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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