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Disclosery

DF DENT & CO INC: DHR position timeline

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

DF DENT & CO INC held 368,898 DHR 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 368,898 shares
    Change vs previous 13F -62,394 shares

    1.33% of the 13F portfolio, value $70,267,773.

    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 431,292 shares
    Change vs previous 13F -54,525 shares

    1.57% of the 13F portfolio, value $81,772,927.

    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 485,817 shares
    Change vs previous 13F -55,850 shares

    1.6% of the 13F portfolio, value $111,213,313.

    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 541,667 shares
    Change vs previous 13F -11,240 shares

    1.39% of the 13F portfolio, value $107,390,965.

    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 552,907 shares
    Change vs previous 13F -16,364 shares

    1.39% of the 13F portfolio, value $109,221,270.

    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 569,271 shares
    Change vs previous 13F -14,272 shares

    1.56% of the 13F portfolio, value $116,700,508.

    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 583,543 shares
    Change vs previous 13F -5,705 shares

    1.7% of the 13F portfolio, value $133,952,367.

    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 589,248 shares
    Change vs previous 13F not available

    1.99% of the 13F portfolio, value $163,822,778.

    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).