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T. Rowe Price Investment Management, Inc.: MGY 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 MGY, newest first. How the timeline and the estimate are built.

T. Rowe Price Investment Management, Inc. held 5,180,518 MGY 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 5,180,518 shares
    Change vs previous 13F -13,369 shares

    0.09% of the 13F portfolio, value $132,518,000.

    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 5,193,887 shares
    Change vs previous 13F +1,204,697 shares

    0.11% of the 13F portfolio, value $163,972,000.

    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 3,989,190 shares
    Change vs previous 13F -1,587,272 shares

    0.06% of the 13F portfolio, value $87,324,000.

    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 5,576,462 shares
    Change vs previous 13F -19,456 shares

    0.08% of the 13F portfolio, value $133,111,000.

    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 5,595,918 shares
    Change vs previous 13F -1,665,197 shares

    0.08% of the 13F portfolio, value $125,797,000.

    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 7,261,115 shares
    Change vs previous 13F -689,882 shares

    0.12% of the 13F portfolio, value $183,416,000.

    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 7,950,997 shares
    Change vs previous 13F -1,315,624 shares

    0.11% of the 13F portfolio, value $185,895,000.

    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 9,266,621 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $226,291,000.

    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).