Skip to content
Disclosery

DF DENT & CO INC: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DF DENT & CO INC on BRK-B, newest first. How the timeline and the estimate are built.

DF DENT & CO INC held 19,710 BRK-B 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 19,710 shares
    Change vs previous 13F -928 shares

    0.19% of the 13F portfolio, value $9,862,687.

    13F-HR 0000934999-26-000003 filed by DF DENT & CO 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 20,638 shares
    Change vs previous 13F -725 shares

    0.19% of the 13F portfolio, value $9,889,730.

    13F-HR 0000934999-26-000002 filed by DF DENT & CO 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 21,363 shares
    Change vs previous 13F -2,845 shares

    0.15% of the 13F portfolio, value $10,738,112.

    13F-HR 0000934999-26-000001 filed by DF DENT & CO 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 24,208 shares
    Change vs previous 13F +600 shares

    0.16% of the 13F portfolio, value $12,170,330.

    13F-HR 0000934999-25-000008 filed by DF DENT & CO 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 23,608 shares
    Change vs previous 13F -479 shares

    0.15% of the 13F portfolio, value $11,468,058.

    13F-HR 0000934999-25-000005 filed by DF DENT & CO 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 24,087 shares
    Change vs previous 13F -2,527 shares

    0.17% of the 13F portfolio, value $12,828,254.

    13F-HR 0000934999-25-000004 filed by DF DENT & CO 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 26,614 shares
    Change vs previous 13F +855 shares

    0.15% of the 13F portfolio, value $12,063,594.

    13F-HR 0000934999-25-000002 filed by DF DENT & CO 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 25,759 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $11,855,837.

    13F-HR 0000934999-24-000013 filed by DF DENT & CO INC
    Filed (acceptance time not in the bulk data set), ingested

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