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Diamond Hill Capital Management, LLC (Investment Advisor): MGY position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Diamond Hill Capital Management, LLC (Investment Advisor) on MGY, newest first. How the timeline and the estimate are built.

Diamond Hill Capital Management, LLC (Investment Advisor) held 468,704 MGY shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 468,704 shares
    Change vs previous 13F +143,683 shares

    0.1% of the 13F portfolio, value $11,989,448.

    13F-HR 0001217541-26-000008 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 325,021 shares
    Change vs previous 13F -89,796 shares

    0.06% of the 13F portfolio, value $10,260,913.

    13F-HR 0001217541-26-000005 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 414,817 shares
    Change vs previous 13F +281,234 shares

    0.05% of the 13F portfolio, value $9,080,344.

    13F-HR 0001217541-26-000002 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 133,583 shares
    Change vs previous 13F +13,203 shares

    0.02% of the 13F portfolio, value $3,188,626.

    13F-HR 0001217541-25-000016 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 120,380 shares
    Change vs previous 13F -8,329 shares

    0.01% of the 13F portfolio, value $2,706,142.

    13F-HR 0001217541-25-000014 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 128,709 shares
    Change vs previous 13F -389,708 shares

    0.01% of the 13F portfolio, value $3,251,189.

    13F-HR 0001217541-25-000009 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 518,417 shares
    Change vs previous 13F -47,522 shares

    0.05% of the 13F portfolio, value $12,120,589.

    13F-HR 0001217541-25-000006 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    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 565,939 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $13,820,230.

    13F-HR 0001217541-24-000012 filed by Diamond Hill Capital Management, LLC (Investment Advisor)
    Filed (acceptance time not in the bulk data set), ingested

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