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Diamond Hill Capital Management, LLC (Investment Advisor): MAMA 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 MAMA, newest first. How the timeline and the estimate are built.

Diamond Hill Capital Management, LLC (Investment Advisor) held 608,422 MAMA 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 608,422 shares
    Change vs previous 13F +221,918 shares

    0.09% of the 13F portfolio, value $10,860,333.

    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 386,504 shares
    Change vs previous 13F -90,923 shares

    0.04% of the 13F portfolio, value $5,928,971.

    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 477,427 shares
    Change vs previous 13F -32,211 shares

    0.03% of the 13F portfolio, value $6,440,490.

    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 509,638 shares
    Change vs previous 13F -16,948 shares

    0.03% of the 13F portfolio, value $5,356,295.

    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 526,586 shares
    Change vs previous 13F -31,993 shares

    0.02% of the 13F portfolio, value $4,370,664.

    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 558,579 shares
    Change vs previous 13F +148,147 shares

    0.02% of the 13F portfolio, value $3,636,349.

    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 410,432 shares
    Change vs previous 13F +27,268 shares

    0.01% of the 13F portfolio, value $3,267,039.

    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 383,164 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $2,797,097.

    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).