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Disclosery

DF DENT & CO INC: MA position timeline

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

DF DENT & CO INC held 246,504 MA 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 246,504 shares
    Change vs previous 13F -40,615 shares

    2.4% of the 13F portfolio, value $126,604,468.

    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 287,119 shares
    Change vs previous 13F -31,143 shares

    2.75% of the 13F portfolio, value $143,462,075.

    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 318,262 shares
    Change vs previous 13F -50,215 shares

    2.62% of the 13F portfolio, value $181,689,593.

    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 368,477 shares
    Change vs previous 13F -14,855 shares

    2.71% of the 13F portfolio, value $209,593,540.

    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 383,332 shares
    Change vs previous 13F -7,466 shares

    2.73% of the 13F portfolio, value $215,409,702.

    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 390,798 shares
    Change vs previous 13F -14,988 shares

    2.86% of the 13F portfolio, value $214,204,313.

    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 405,786 shares
    Change vs previous 13F -5,724 shares

    2.71% of the 13F portfolio, value $213,674,835.

    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 411,510 shares
    Change vs previous 13F not available

    2.47% of the 13F portfolio, value $203,203,819.

    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).