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

Diamond Hill Capital Management, LLC (Investment Advisor) held 123,157 DCO 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 123,157 shares
    Change vs previous 13F +12,586 shares

    0.18% of the 13F portfolio, value $22,809,908.

    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 110,571 shares
    Change vs previous 13F -31,186 shares

    0.08% of the 13F portfolio, value $13,489,662.

    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 141,757 shares
    Change vs previous 13F -8,545 shares

    0.07% of the 13F portfolio, value $13,485,343.

    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 150,302 shares
    Change vs previous 13F -5,875 shares

    0.07% of the 13F portfolio, value $14,448,531.

    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 156,177 shares
    Change vs previous 13F -17,071 shares

    0.06% of the 13F portfolio, value $12,904,906.

    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 173,248 shares
    Change vs previous 13F +11,263 shares

    0.05% of the 13F portfolio, value $10,053,581.

    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 161,985 shares
    Change vs previous 13F +31,601 shares

    0.05% of the 13F portfolio, value $10,311,965.

    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 130,384 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $8,583,179.

    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).